Feature: Creating Cart Service, Cart Events, Save For Later functionality, Adding Filament Views for viewing abandoned carts

Feature: Creating Cart Views, rules for abandonment
Bump Version to 0.7.0
2026-08-28 13:14:47 +03:00 · 2026-08-28 00:27:46 +03:00 · 2026-08-27 23:09:52 +03:00 · 2026-08-27 23:09:33 +03:00 · 2026-08-27 12:11:01 +03:00 · 2026-08-27 11:42:13 +03:00
65 changed files with 3083 additions and 292 deletions
@@ -4,6 +4,83 @@ All notable changes to this project will be documented in this file.

 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).

+## [0.7.0] - 2026-08-27
+
+### Added
+- `Modules\Core\Catalog\Services\CollectionService` provides category browsing/nav AND single-collection lookup from Meilisearch, mirroring `ProductService` exactly (`list()`, `getById()`, `getBySlug()`, same locale-resolution logic). `Modules\Core\Catalog\Services\CollectionIndexer` extends Lunar's own `Lunar\Search\CollectionIndexer` (which only carried `id`/`name`/`created_at`) to add `parent_id`, `_lft`/`_rgt` (nested-set tree position, filterable/sortable), `collection_group_id`, `slugs`, and `thumbnail`. `Modules\Core\Catalog\DTOs\CollectionFilters` supports `parentId` (children of a specific collection), `groupId`, and `rootOnly` (top-level collections, `parent_id IS NULL` — mutually exclusive with `parentId`). `Modules\Core\Catalog\Enums\CollectionSort` adds `Position` (`_lft:asc`, the recommended default for nav/tree UIs — matches admin arrangement order), `Name`, `Newest`. Must be registered in a consuming app's `config/lunar/search.php` (`Lunar\Models\Collection::class => CollectionIndexer::class`), same as `ProductIndexer`. Documented in `docs/collections.md`.
+- `Modules\Core\Localization\Services\StorefrontLabels::all()` extracts the default storefront UI label list out of `InstallLunarCommand` into its own class, and adds every previously-missing key (`nav.contact`, `product.description`/`no_image`/`read_more`/`reviews`, `customer_reviews`, `pagination.*`, `review.*`, `shop.*`) that had already been seeded manually in some stores but was absent from the command's own list — bringing the code-side default back in sync with what a real store actually has. `InstallLunarCommand::seedStorefrontLabels()` now does a **per-key upsert** instead of an all-or-nothing "only seed if the group is empty" guard: a key already present in the database (including one an admin has since edited via the Filament **Language Lines** resource) is left untouched, and only missing keys are created via `TranslationService::create()`. This makes it safe to add new keys to `StorefrontLabels::all()` later and re-run `lunar:install` on an already-installed store without either silently skipping the new keys (the old guard's behavior) or reverting an admin's edits back to the hardcoded default. Documented in `docs/localization.md` ("Seeding").
+- `Modules\Core\Catalog\Services\CollectionIndexer` adds `ancestors` — `[{id, name}, ...]` ordered root-first (via the newly eager-loaded `ancestors` relation) — so a breadcrumb can render directly from `CollectionService::getById()`/`getBySlug()` with zero extra queries, and `product_count` — how many products are in a collection or any of its descendants, queried from the product Meilisearch index at collection-index time via the same `collection_ids` field `ProductFilters(collectionId:)` filters against. Documented in `docs/collections.md`, including the reindex-ordering gotcha (`product_count` needs the product index reindexed first).
+- `Modules\Core\Catalog\Services\ProductIndexer` adds a filterable `in_stock` boolean — `true` if any variant currently passes `ProductVariant::canBeFulfilledAtQuantity(1)` (Lunar's own purchasability rule, not a naive `stock > 0` check). `Modules\Core\Catalog\DTOs\ProductFilters` gets a matching `inStockOnly` flag. Reflects stock as of the last reindex only — nothing currently reindexes a product when an order decrements its stock, since that's a cart/checkout concern this doesn't attempt to solve; see `docs/product-listing.md` ("Stock goes stale between orders").
+- `Modules\Core\Catalog\Services\ProductService::facets(string $field, ?ProductFilters $filters = null): array` returns Meilisearch facet value counts (e.g. `['Brand A' => 48, 'Brand B' => 135]`) for a discrete-value filterable field, scoped to the given filters. Uses Scout's plain `->options(['facets' => [...]])`, merged directly into the raw Meilisearch query the same way `filter`/`sort` already are — no adoption of Lunar's separate `SearchManager`/`Search` facade needed. `ProductService::priceRange(?ProductFilters $filters = null): array{min, max}` covers the numeric-field case `facets()` explicitly doesn't (`price` would otherwise return one "facet" per exact price) — backed by Meilisearch's `facetStats`, not `facetDistribution`. `priceRange()` always excludes `minPrice`/`maxPrice` from the filter it builds (via a new `$exclude` parameter on the private `buildFilter()`), so a price slider's own bounds don't shrink to whatever range is already selected on it; other filters (`collectionId`, `brand`, `inStockOnly`) still apply normally. Documented in `docs/product-listing.md`.
+
+### Changed
+- **Breaking:** Renamed the `Product` module to `Catalog`, flattened. Every class under `Modules\Core\Product\*` (`Contracts`, `DTOs`, `Enums`, `Services`, `Observers`, `Filament\Extensions`, `OptionTypes`) now lives under `Modules\Core\Catalog\*` at the same sub-path — e.g. `Modules\Core\Product\Services\ProductService` is now `Modules\Core\Catalog\Services\ProductService`, `Modules\Core\Product\DTOs\ProductFilters` is now `Modules\Core\Catalog\DTOs\ProductFilters`. Class names themselves are unchanged (still `ProductService`, `ProductIndexer`, `ProductFilters`, etc.) — only the namespace/folder moved, to make room for `Collection` as a sibling concern under the same `Catalog` umbrella rather than a disconnected top-level module. Consuming apps must update every `use Modules\Core\Product\...` import and any FQCN reference (`config/lunar/search.php`'s indexer registration, service provider bindings).
+- **Breaking:** `Modules\Core\Providers\ProductServiceProvider` renamed to `Modules\Core\Providers\CatalogServiceProvider` (composer.json's provider list updated accordingly) — it now only wires `Catalog`-namespace classes (`ProductOptionTypeManager`, `ProductOptionReindexObserver`), so the name follows the same by-concern convention as `LocalizationServiceProvider`/`ReviewServiceProvider`.
+- **Breaking:** `Modules\Core\Review`'s flat `Extensions/`/`Pages/` folders now nest under `Filament/`, matching the strict per-concern subfolder convention already applied to `Product`(now `Catalog`)/`Localization`. `Modules\Core\Review\Extensions\ProductResourceExtension` is now `Modules\Core\Review\Filament\Extensions\ProductResourceExtension`; `Modules\Core\Review\Pages\ManageProductReviews` is now `Modules\Core\Review\Filament\Pages\ManageProductReviews`. `Modules\Core\Review\Models\ProductReview` is unchanged.
+- **Breaking:** `ProductFilters(collectionId: ...)` now matches a product in that collection **or any of its descendant collections**, not just direct assignment. Products in a Shopify-imported tree are typically attached only to leaf collections, so filtering strictly on direct assignment meant a parent/root category page (`CollectionFilters(rootOnly: true)`'s results, or any non-leaf collection) always returned zero products even though real products existed several levels down. `Modules\Core\Catalog\Services\ProductIndexer` adds a new filterable `collection_ids` field — every directly-assigned collection's id unioned with all of its ancestors' ids (via the newly eager-loaded `collections.ancestors`) — and `ProductService::buildFilter()` now filters `collectionId` against `collection_ids` instead of the old `collections.id`. The display-only `collections` field (`{id, name}`, direct assignments) is unchanged and no longer filterable.
+
+## [0.6.1] - 2026-08-27
+
+### Added
+- `Modules\Core\Product\Contracts\ProductOptionTypeInterface` describes how a category of `Lunar\Models\ProductOption` (e.g. "Color", "Size") behaves — what structured data its values carry in their free-form `meta` jsonb column, and how an admin edits it via Filament — without introducing a new model. Registered via `Modules\Core\Product\Services\ProductOptionTypeManager::get()->register([...])` (a singleton registry, same shape as `Modules\Core\Notification\NotificationRegistry`) from a service provider's `boot()`. An admin then picks one per `ProductOption` from an "Option Type" dropdown on the option's own edit form (added by `Modules\Core\Product\Filament\Extensions\ProductOptionResourceExtension`), stored in `ProductOption::meta['option_type']` — deliberately not tied to the option's `handle`, since a shop's own handle naming shouldn't have to match a type's key. `Modules\Core\Product\Filament\Extensions\ValuesRelationManagerExtension` hooks Lunar's own `ValuesRelationManager` (both extensions via `LunarPanel::extensions()`, registered in `CorePlugin`) to append the resolved type's meta form fields to the stock "Values" tab — no fork of Lunar's classes needed. Ships a reference implementation, `Modules\Core\Product\OptionTypes\ColorOptionType`, registered automatically by the new `Modules\Core\Providers\ProductServiceProvider`. Documented in `docs/product-options.md`.
+- `Modules\Core\Product\Services\ProductIndexer::mapVariant()` now includes each option's `handle` (alongside its translated name) in a variant's indexed `options[]` — previously only the translated `option`/`value` names and `meta` were indexed, with no stable, locale-independent identifier for which option a value belongs to.
+- `Modules\Core\Product\Observers\ProductOptionReindexObserver`, wired in the new `Modules\Core\Providers\ProductServiceProvider`, keeps Meilisearch in sync when a `ProductOption` or `ProductOptionValue` is saved or deleted — e.g. picking an Option Type or editing a color's hex. `ProductIndexer::mapVariant()` embeds each option value's `meta` directly into a product's indexed document, but saving the option/value never fires the *product's* own save events, so without this a changed hex would only reach the index on that product's next unrelated reindex. The observer resolves every `Lunar\Models\Product` whose variants use the changed option (or option value) via the `product_option_value_product_variant` pivot, and calls `->searchable()` on each.
+
+### Changed
+- **Breaking:** `Modules\Core\Product\Services\ProductIndexer`'s indexed `collections` field is now an array of `{id, name}` objects instead of two parallel arrays (`collections` as bare ID strings, `collection_names` as translated names joined only by array index). `collection_names` is removed. Filtering by collection now targets the nested field `collections.id` (Meilisearch supports filtering on nested object fields), not bare `collections` — `Modules\Core\Product\Services\ProductService::buildFilter()` updated accordingly; `ProductFilters(collectionId: ...)`'s public API is unchanged. Run `php artisan lunar:meilisearch:setup` then `lunar:search:index --refresh` after upgrading (see docs/product-listing.md "Gotchas").
+- **Breaking:** `ProductIndexer`'s indexed `review_count`/`average_rating` top-level keys are folded into the existing `reviews` key: `reviews` is now `{items, count, average_rating}` instead of a bare array with `review_count`/`average_rating` as separate sibling keys. `reviews` (the array of review items) moved to `reviews.items`.
+
+## [0.6.0] - 2026-08-27
+
+### Added
+- `Modules\Core\Localization\Models\LanguageLine` extends `spatie/laravel-translation-loader`'s `LanguageLine` to fall back to the store's actual default language (`LanguageCache::defaultLocale()`, backed by Lunar's `languages.default` flag) instead of the package's stock behavior of falling back to the static `config('app.fallback_locale')` — the two were previously disconnected, so changing the default language via the Filament **Languages** resource had no effect on which locale an untranslated storefront label silently fell back to. Swapped in automatically via `config('translation-loader.model')` in `LocalizationServiceProvider::register()`; no consuming app changes needed. Documented in `docs/localization.md` ("Fallback locale follows the store's default language").
+
+### Changed
+- **Breaking:** `Modules\Core\Catalog\ProductService::list()` now returns a real `Illuminate\Pagination\LengthAwarePaginator` (built from the localized Meilisearch hits) instead of a plain `array{data, meta}` — gives callers normal Laravel pagination behaviour (`$products->links()`, standard JSON serialization) without ever touching Scout's raw `paginateRaw()` response directly. `getById()`/`getBySlug()` are unaffected (still return `?array`).
+- `ProductService::withLocalizedFields()` (used by `list()`, `getById()`, `getBySlug()`) no longer hardcodes `name`/`description` as the only translated fields — it now reads every `TranslatedText` attribute on `Product` from `Lunar\Base\AttributeManifest` (the same source Lunar's own indexer reads), so a store's own custom translated attributes (e.g. `seo_title`, `seo_description`) are resolved and locale-stripped automatically with no code change here. Raw `{handle}_{locale}` keys (e.g. `name_el`, `seo_title_en`) are now stripped from every returned product, not just `name_*`/`description_*`.
+- Extracted `Modules\Core\Localization\Services\LanguageCache` (cached read layer over Lunar's `languages` table: `all()`, `defaultLocale()`, `availableLocales()`, `forget()`) out of `LocaleMiddleware`, which previously owned this as private/static methods despite not being middleware-specific behavior. `LocaleMiddleware` now takes `LanguageCache` via constructor injection. `LocaleMiddleware::defaultLocale()`/`forgetLanguagesCache()` (static) are removed — use `app(LanguageCache::class)` or inject `LanguageCache` directly.
+
+### Fixed
+- `Modules\Core\MigrateImport\JudgeMe\Resolvers\ProductResolver::resolve()` picked whichever `lunar_urls` row matched a slug first, which can be a soft-deleted product left behind by an earlier import batch rather than the current live one — a store can easily end up with more than one `Product` row sharing the same slug across re-imports, since a soft-deleted product's URL row isn't cleaned up. This silently broke every downstream lookup for that handle (e.g. `Modules\Core\MigrateImport\JudgeMe\JudgeMeExportImporter` logging "no product found for handle, skipping review" and dropping the row, even though a live product with that exact handle existed). Rewrote as a join against `lunar_products` — via `Product::query()`, so Eloquent's `SoftDeletes` global scope excludes trashed rows — so only a URL pointing at a live product resolves.
+- `Modules\Core\Review\Models\ProductReview` had no `registerMediaConversions()` at all, unlike `Product`/`ProductVariant` which get one automatically from Lunar's own `Lunar\Base\StandardMediaDefinitions`. `Modules\Core\Search\ProductIndexer::mapMedia()` is shared across product, variant, and review media and always requests the `small` conversion — the first time a review had an attached image, indexing it threw `Spatie\MediaLibrary\MediaCollections\Exceptions\InvalidConversion`, silently failing the product's `MakeSearchable` queue job (and everything queued after it, since Scout batches). Added a matching `small` conversion (300×300, same fit/border/background as Lunar's standard one) directly on `ProductReview`.
+
+### Breaking
+- Merged `Modules\Core\Catalog` and `Modules\Core\Search` into a single `Modules\Core\Product` concern, since both existed purely to serve `Product` (browsing/filtering vs. indexing/full-text search — two services, one concern), following a stricter subfolder convention (`Contracts/`, `Enums/`, `Services/`, `DTOs/`, `Models/`, etc. per concern) going forward:
+  - `Modules\Core\Catalog\ProductService` → `Modules\Core\Product\Services\ProductService`
+  - `Modules\Core\Catalog\ProductFilters` → `Modules\Core\Product\DTOs\ProductFilters`
+  - `Modules\Core\Catalog\ProductSort` → `Modules\Core\Product\Enums\ProductSort`
+  - `Modules\Core\Search\ProductIndexer` → `Modules\Core\Product\Services\ProductIndexer`
+  - `Modules\Core\Search\ProductSearchService` → `Modules\Core\Product\Services\ProductSearchService`
+
+  Consuming apps must update any direct references — notably `config/lunar/search.php`'s `'indexers'` map, which points at `ProductIndexer` by FQCN. `Modules\Core\Catalog\ProductOptionTypeInterface` (in-progress, not yet wired to anything) was deliberately left in place rather than moved.
+- Reorganized `Modules\Core\Localization` under the same stricter per-concern subfolder convention — `Events/`, `Filament/`, `Listeners/` were already correctly categorized; four loose root files moved into typed buckets by structural role:
+  - `Modules\Core\Localization\LocaleMiddleware` → `Modules\Core\Localization\Middleware\LocaleMiddleware`
+  - `Modules\Core\Localization\LanguageCacheObserver` → `Modules\Core\Localization\Observers\LanguageCacheObserver`
+  - `Modules\Core\Localization\TranslationReader` → `Modules\Core\Localization\Services\TranslationReader`
+  - `Modules\Core\Localization\TranslationService` → `Modules\Core\Localization\Services\TranslationService`
+
+  `Modules\Core\Localization\Services\LanguageCache` (added earlier in this same unreleased version) already lived at its correct final path — unaffected. The `'locale'` route-middleware alias (registered in `LocalizationServiceProvider`) is unaffected for consuming apps using it by string alias rather than FQCN.
+
+## [0.5.4] - 2026-08-26
+
+### Added
+- `Modules\Core\Catalog\ProductService::list()` accepts a `sort` parameter (new `ProductSort` enum: `PriceAsc`, `PriceDesc`, `Newest`), translated into a Meilisearch `sort` clause — `list()` previously had no way to order results, since it always searches with an empty query string and so has no relevance score to fall back on. `Modules\Core\Search\ProductIndexer::getSortableFields()` now also marks `price` sortable (Lunar's base indexer only marks `created_at`/`updated_at`/`skus`/`status`). Requires re-syncing index settings (`php artisan lunar:meilisearch:setup`) on existing stores. Documented in `docs/product-listing.md` ("Sorting").
+
+## [0.5.3] - 2026-08-26
+
+### Fixed
+- `Modules\Core\Search\ProductIndexer::toSearchableArray()` threw `column reference "id" is ambiguous` on Postgres when computing `channel_ids` — `$model->channels()->wherePivot('enabled', true)->pluck('id')` joins `lunar_channels` and `lunar_channelables`, both of which have an `id` column, and the unqualified `pluck('id')` left Postgres unable to resolve which table's column to select (SQLite/MySQL tolerated the ambiguity). Qualified as `pluck('lunar_channels.id')`.
+
+## [0.5.2] - 2026-08-26
+
+### Fixed
+- `Modules\Core\Localization\LocaleMiddleware`'s shared view data only ever surfaced a single alternate locale (`altLocale`/`altLocaleUrl`, found via `firstWhere('code', '!=', $current)`) — correct by coincidence for a 2-language store, but silently dropped every locale past the first "other" one found for a 3+ language store, with no error. Replaced with `altLocales`, a collection of every other configured language (`code`, `name`, `url` for the current route each), so a language switcher or `hreflang` tags scale to any number of locales. Documented in `docs/localization.md` ("Shared view data — language switcher and `hreflang` tags").
+
+## [0.5.1] - 2026-08-25
+
+### Added
+- `Modules\Core\Search\ProductIndexer` now indexes `channel_ids` (filterable) — Lunar's base indexer only marks `status` as filterable, not channel assignment, so storefront search couldn't otherwise scope results to products actually assigned and enabled on the current sales channel. Computed from `$product->channels()->wherePivot('enabled', true)`. Ported from an older `Products` branch whose remote had been deleted; the branch's other, now-superseded `ProductIndexer` changes were dropped in favor of the richer indexer already on `master` (collections, price, variants, reviews — see `0.5.0`).
+
 ## [0.5.0] - 2026-08-24

 ### Added
@@ -2,7 +2,7 @@
  "name": "boboko/core",
  "description": "Core module — authentication and shared panel behaviour",
  "type": "library",
-  "version": "0.5.0",
+  "version": "0.7.0",
  "autoload": {
    "psr-4": {
      "Modules\\Core\\": "src/"
@@ -36,6 +36,7 @@
        "Modules\\Core\\Providers\\AuthServiceProvider",
        "Modules\\Core\\Providers\\CustomerServiceProvider",
        "Modules\\Core\\Providers\\LocalizationServiceProvider",
+        "Modules\\Core\\Providers\\CatalogServiceProvider",
        "Modules\\Core\\Providers\\ReviewServiceProvider"
      ]
    }
@@ -16,4 +16,20 @@ return [

    'auto_create_customer_for_user' => true,

+    /*
+    |--------------------------------------------------------------------------
+    | Cart Abandonment Threshold
+    |--------------------------------------------------------------------------
+    |
+    | How long a cart (that hasn't converted to a placed order) can go without
+    | activity before Modules\Core\Cart\Filament\Resources\CartResource treats
+    | it as "Abandoned" rather than "Ongoing". Anything DateInterval::createFromDateString()
+    | accepts works, e.g. '1 hour', '30 minutes', '2 days'.
+    |
+    */
+
+    'cart' => [
+        'abandoned_after' => '1 hour',
+    ],
+
 ];
@@ -0,0 +1,272 @@
+# Cart Admin Visibility
+
+`Modules\Core\Cart\Filament\Resources\CartResource` gives staff read-only visibility into
+customer/user carts in the Filament admin panel. Lunar itself ships no cart admin view at
+all — no Filament resource for `Cart`/`CartLine` exists anywhere in `lunarphp/lunar` or
+`lunarphp/core` — this is a from-scratch addition, not an extension of something Lunar
+half-built. See `docs/lunar.md`'s "Cart and Checkout" section for the underlying Lunar cart
+mechanics this resource reads from.
+
+---
+
+## Scope: only carts with a known customer or user
+
+`CartResource::getEloquentQuery()` filters to `Cart::whereNotNull('user_id')->orWhereNotNull('customer_id')`
+— an anonymous guest's session cart is excluded entirely.
+
+This was a deliberate call, not an oversight: an anonymous cart carries no identity a staff
+member could act on — no name, no email, nothing to follow up with — so listing every guest
+session cart would be noise, not a real admin capability. This does **not** mirror Shopify's
+admin (Shopify has no "all carts" view at all — only "Abandoned checkouts," gated on a
+shopper reaching checkout and entering contact info, a later/narrower stage than Lunar's
+`Cart`). Lunar's own `Cart` model already gets `user_id`/`customer_id` set the moment a
+shopper is authenticated (via `Lunar\Listeners\CartSessionAuthListener` on login), with no
+checkout step required — so scoping to "identifiable" here is broader than Shopify's
+equivalent, not a copy of it.
+
+---
+
+## Four states, not two — and not `Cart::completed_at`
+
+`Lunar\Models\Cart::completed_at` is declared and cast (`'completed_at' => 'datetime'`) but
+**never actually written anywhere in Lunar core** — grep `vendor/lunarphp/core/src` for it;
+the only hits are the property declaration and the cast. It is not a real signal. `Cart` has
+no `status` column at all — every state below is derived from relations/timestamps, not a
+single field.
+
+`Cart::scopeActive()` (Lunar's own "not yet converted to an order" scope) actually mixes two
+distinct states together: no order ever started, vs. a draft order exists
+(`placed_at IS NULL`) but was never placed — checkout was started, not finished. Those are
+different purchase-intent signals (see "Abandoned Cart vs Abandoned Checkout" below) and
+different reachability (checkout usually captures an email even for a guest), so
+`ListCarts::getTabs()` splits them into four tabs instead of `scopeActive()`'s two-state
+split:
+
+- **Ongoing** — `scopeActive()` and recent `updated_at` (within `abandonedCutoff()`). Default
+  active tab on page load.
+- **Abandoned Cart** — `whereDoesntHave('orders')` and stale `updated_at`.
+- **Abandoned Checkout** — has an order with `placed_at IS NULL`, and stale `updated_at`.
+- **Completed** — has an order with `placed_at IS NOT NULL`.
+
+```php
+// Ongoing
+$query->active()->where('updated_at', '>', CartResource::abandonedCutoff());
+
+// Abandoned Cart
+$query->whereDoesntHave('orders')->where('updated_at', '<=', CartResource::abandonedCutoff());
+
+// Abandoned Checkout
+$query->whereHas('orders', fn ($q) => $q->whereNull('placed_at'))
+    ->where('updated_at', '<=', CartResource::abandonedCutoff());
+
+// Completed
+$query->whereHas('orders', fn ($q) => $q->whereNotNull('placed_at'));
+```
+
+There is deliberately **no "All" tab.** Every row shown is always scoped to one of the four
+states above — the list never runs an unfiltered `Cart::query()->get()` over the whole
+(potentially large) table.
+
+### Abandoned Cart vs Abandoned Checkout — why they're not one bucket
+
+Different purchase intent, different reachability, and different recovery strategy — see
+`docs/recovery-strategies.md` for the full marketing-strategy discussion. In short:
+
+- **Abandoned Cart** (no order started) is a weak intent signal — often window-shopping, not
+  a near-purchase. Frequently unreachable (no email/identity at all for a true guest).
+  Recovery leans on on-site retargeting and ad remarketing rather than email.
+- **Abandoned Checkout** (draft order, never placed) is a strong intent signal — the shopper
+  committed to buying and something blocked completion. Checkout typically captures contact
+  info even for a guest, so this state is usually reachable. This is the state the
+  researched 1h/24h/72h recovery-email cadence targets specifically.
+
+`Modules\Core\Cart\Events\CartAbandoned` and `Modules\Core\Checkout\Events\CheckoutAbandoned`
+mirror this same split (see "Events" below) rather than one combined event.
+
+---
+
+## Why this scales fine at a large cart count
+
+Two things keep this cheap regardless of how many carts exist (10,000+):
+
+- **The list is always paginated.** Filament applies `LIMIT`/`OFFSET` to whichever tab's
+  query is active — a page only ever fetches one page's worth of rows, never the whole
+  table, "All" tab or not (and there is no "All" tab — see above).
+- **No per-row queries.** `lines_count`/`lines_sum_quantity` use Filament's built-in
+  `->counts('lines')`/`->sum('lines', 'quantity')`, which fold into the same query as the
+  rest of the list (one `LEFT JOIN`-based aggregate, not N separate lookups). There's no
+  per-record `getStateUsing()` closure anywhere in this table doing its own query — that's
+  the pattern to avoid if a future column needs derived data (see `Modules\Core\Catalog\
+  Services\ProductIndexer` for the general "compute once at index time / one aggregate
+  query, never per-row" principle this project follows elsewhere).
+
+The one thing that **does** scan more rows as the cart count grows is
+`CartResource::getNavigationBadge()` (see below) — but it's a `COUNT(*)`, not a fetch, and
+runs once per admin page load, not once per cart row.
+
+---
+
+## Navigation badge — abandoned cart count
+
+```php
+public static function getNavigationBadge(): ?string
+{
+    return (string) static::getEloquentQuery()->active()->count();
+}
+```
+
+Shows the number of abandoned carts (not all carts — a converted cart isn't something a
+staff member needs to keep noticing) next to "Carts" in the sidebar. `->count()` compiles to
+a single `SELECT COUNT(*) ...` — confirmed via query log — no rows are ever loaded just to
+render the badge.
+
+---
+
+## The view page runs the cart's full calculate pipeline — once
+
+`ViewCart::resolveRecord()` calls `$cart->calculate()` before rendering, since `CartLine`'s
+computed properties (`unitPrice`, `total`, etc.) and `Cart`'s own totals (`subTotal`, `total`,
+...) are plain public properties populated as a side effect of that pipeline — never
+persisted, so a plain Eloquent-fetched `Cart` has them all `null`/unset (see `docs/lunar.md`
+Gotchas). This only runs on the single-record view page, not per row in the list table —
+running the full 5-step pipeline for every row of a paginated list would be needless cost for
+data the list doesn't display.
+
+---
+
+## Not built: staff editing a cart
+
+The resource is deliberately read-only (`canCreate()` returns `false`, no edit page
+registered). A cart is owned by the storefront's own add/update/remove flow
+(`CartSession`/`Cart::add()`/etc.) — hand-editing cart contents from the admin panel isn't a
+supported use case here.
+
+---
+
+## `CartService` — the storefront-facing API
+
+`Modules\Core\Cart\Services\CartService` mirrors `Modules\Core\Catalog\Services\
+ProductService`/`CollectionService`'s shape — one boboko-owned API a storefront calls, so
+Lunar's own `CartSession`/`Cart` stay an implementation detail rather than something a
+consuming app depends on directly.
+
+- `current()` / `currentOrCreate()` — the latter force-creates a cart (`CartSession::manager()`),
+  the former doesn't (`CartSession::current()`, returns `null` for a fresh visitor — see
+  `docs/lunar.md`'s Cart gotchas).
+- `addLine()` / `updateLine()` / `removeLine()` / `clear()` — thin wrappers over
+  `Cart::add()`/`updateLine()`/`remove()`/`clear()`. No boboko-owned exception types wrap
+  Lunar's own cart exceptions (`InvalidCartLineQuantityException`, `CartLineIdMismatchException`,
+  etc.) — they propagate as-is; a wrapper would add indirection with identical semantics.
+- `applyCoupon()` / `removeCoupon()` — sets/clears `Cart::coupon_code` (there's no dedicated
+  Lunar action for this, unlike add/update/remove). `applyCoupon()` validates via
+  `Discounts::validateCoupon()` first and throws `Modules\Core\Cart\Exceptions\
+  InvalidCouponException` on a bad code — `CouponString`'s cast only normalizes casing, it
+  doesn't validate anything, so setting `coupon_code` directly would silently accept a bogus
+  code and just not discount anything once calculated.
+- `saveForLater()` / `moveToCart()` / `activeLines()` / `savedLines()` — see "Save for later"
+  below.
+
+Every mutating method returns the recalculated `Cart` (matching Lunar's own `Cart::add()`
+etc., which already return `$this` after `refresh()->recalculate()`) and dispatches a
+matching domain event.
+
+### Events — Lunar dispatches none of its own
+
+`Lunar` dispatches zero cart events — no "item added," no "cart created" (see
+`docs/lunar.md`'s Cart gotchas). `CartService` fills that gap with its own, dispatched after
+the underlying Lunar operation completes:
+
+`CartLineAdded`, `CartLineUpdated`, `CartLineRemoved`, `CartCleared`, `CartCouponApplied`,
+`CartCouponRemoved`, `CartLineSaved`, `CartLineMovedToCart` — all under
+`Modules\Core\Cart\Events`. `CartAbandoned`/`CheckoutAbandoned` live under
+`Modules\Core\Recovery\Events` instead, not `Cart`/`Checkout` — see "Abandonment detection"
+below for why.
+
+**None of these currently have a listener.** They're dispatched-but-unconsumed by design —
+built so something downstream (reindexing, notifications, a future read-side reporting
+service) has a hook to attach to, not because a concrete consumer exists today. This was a
+deliberate decision, not an oversight — see the "don't build speculative infrastructure"
+calls made elsewhere in this project (e.g. not wrapping Lunar's cart exceptions).
+
+**Why not wired to Spatie's Activity Log:** `Cart`/`CartLine` already use Lunar's own
+`LogsActivity` trait (Spatie's package, Lunar's defaults) — confirmed from source, this logs
+model saves/deletes automatically, independent of actor. `Modules\Core\Logging\
+ActivityLogService` (this project's own wrapper, used by e.g. `LogTranslationActivity`) is
+hardcoded to the `staff` guard — correctly scoped for staff-driven writes (Filament admin
+actions), but wrong for customer-driven cart activity, which would resolve `causedBy()` to
+`null` every time. Both `ActivityLogService` and `Cart`/`CartLine`'s native `LogsActivity`
+write to the **same** `log_name = 'lunar'` / `activity_log` table, with no built-in
+separation beyond reading `causer_type` per row — a real limitation worth knowing about, but
+not one this project is fixing by giving Cart a distinct `log_name`, since every other Lunar
+model logs to `'lunar'` too and a Cart-only carve-out would just be inconsistent. The
+intended fix, if this becomes a real need, is a read-side service that queries `activity_log`
+and classifies by `causer_type`/`log_name` — not touching every write site.
+
+### Save for later
+
+A `CartLine` can be moved out of the purchasable cart without being deleted — flagged via
+`meta.saved_for_later`, not a new column (matches the free-form-JSON pattern already used
+elsewhere, e.g. `ProductOptionValue::meta`). `Modules\Core\Cart\Pipelines\
+ZeroSavedForLaterPrice` (registered in `config('lunar.cart.pipelines.cart_lines')`, after the
+stock `GetUnitPrice`) zeroes `unitPrice`/`unitPriceInclTax` for flagged lines **before**
+Lunar's own `CalculateLines` pipeline step sums the cart — `CalculateLines` sums every
+`CartLine` unconditionally with no meta-based exclusion of its own, so zeroing the price
+upstream is what makes `Cart::subTotal`/`total` naturally correct without a second pass or
+callers needing a different totals accessor.
+
+`Lunar\Actions\Carts\UpdateCartLine` **replaces** the whole `meta` column on write (plain
+`update(['meta' => $meta])`, not a merge) — `saveForLater()`/`moveToCart()` read the line's
+existing meta and merge in the flag change before calling `Cart::updateLine()`, or an
+unrelated meta key set by something else would be silently wiped.
+
+### Coupons
+
+See `CartService::applyCoupon()`/`removeCoupon()` above. `Lunar\Base\Casts\CouponString`
+just upper-cases the code; `Lunar\Managers\DiscountManager::validateCoupon()` (via the
+`Discounts` facade) is the actual check — does a matching `Discount` (type `AmountOff` or
+`BuyXGetY`) exist, `active()`, with `max_uses` not exhausted.
+
+---
+
+## Abandonment detection
+
+"Abandoned" is a **derived** state (`Cart::updated_at` older than
+`config('core.cart.abandoned_after')`, default `1 hour`) — nothing transitions a cart into it
+via a normal Eloquent write, so there's no model-event hook to dispatch from directly.
+`Modules\Core\Cart\Commands\DetectAbandonedCarts` (registered on an hourly schedule by
+`Modules\Core\Providers\CartServiceProvider`) is the only place that moment gets detected: it
+queries the same two branches `ListCarts::getTabs()` uses (no order at all vs. draft order
+never placed) and dispatches `Modules\Core\Recovery\Events\CartAbandoned`/`CheckoutAbandoned`
+for anything currently stale.
+
+### Cart/Checkout have zero abandonment-related writes — by design
+
+`DetectAbandonedCarts` **only dispatches** — it never writes to `Cart`/`Order` at all. An
+earlier version recorded an "already notified" marker on `Cart::meta`/`Order::meta` to avoid
+refiring the same event every run, but that `->save()` call bumped `Cart::updated_at` as an
+Eloquent side effect — since `updated_at` is also the field abandonment staleness is computed
+from, the write **un-staled the very cart it had just marked abandoned**: confirmed live, a
+cart that correctly fired `CartAbandoned` showed back up as "Ongoing," not "Abandoned Cart,"
+on the very next tab-count check.
+
+The fix wasn't to write the marker more carefully — it was to stop `Cart`/`Checkout` from
+having any way to write abandonment state at all. Deduplication ("has this cart already been
+notified") is deliberately **not** this command's job; it belongs to `Recovery` (not yet
+built — see `docs/recovery-strategies.md`), which will own its own tracking table, keeping
+`Cart`/`Order` permanently free of abandonment-related columns or `meta` keys.
+
+**Current tradeoff, accepted deliberately**: until `Recovery` exists, every cart still
+matching the "abandoned" query refires its event on every hourly run — there is no dedup at
+all right now. That's fine today only because nothing consumes these events yet (see
+"Events" above); it would need addressing before anything real listens for them.
+
+---
+
+## Recovery Sequences — design only, not built
+
+See `docs/recovery-strategies.md` — a full marketing-strategy discussion and a first-pass
+feature design for an admin-configurable sequence of "touches" (delay + optional discount +
+label) per abandonment type. Explicitly parked as an open design question, not scoped for
+implementation yet — whether this belongs under `Cart`, a new `Recovery`/`Marketing` concern,
+and how far the touch model needs to flex (channel choice, value-based branching, segment
+targeting) are all still undecided.
@@ -0,0 +1,116 @@
+# Collections
+
+`Modules\Core\Catalog\Services\CollectionService` provides category browsing/nav AND
+single-collection lookup for a storefront — `list()`, `getById()`, `getBySlug()` —
+all reading directly from the Meilisearch index, mirroring
+`Modules\Core\Catalog\Services\ProductService` (see `product-listing.md`) exactly.
+
+---
+
+## Why it reads from the index, not the database
+
+Lunar's own `Lunar\Search\CollectionIndexer` only carries `id`/`name`/`created_at` —
+nowhere near enough for a storefront category page or a nav tree.
+`Modules\Core\Catalog\Services\CollectionIndexer` extends it to add everything
+`CollectionService` needs:
+
+| Field | Source | Notes |
+|---|---|---|
+| `parent_id` | `$model->parent_id` | Filterable. The nested-set tree's parent pointer — `null` for a top-level collection. |
+| `_lft` | `$model->_lft` | Filterable and sortable. The nested-set tree position — lets `CollectionService` resolve tree order without a database read. |
+| `collection_group_id` | `$model->collection_group_id` | Filterable. Mirrors `Collection::scopeInGroup()`. |
+| `slugs` | `$model->urls->pluck('slug')` | Filterable. Every locale's `Url::slug`, so `getBySlug()` resolves purely from the index. |
+| `thumbnail` | `$model->getThumbnailImage()` | Display only. `null` if the collection has no thumbnail image. |
+| `ancestors` | `$model->ancestors` | Display only. Array of `{id, name}`, ordered root-first — a breadcrumb (`Home > Apparel > Keychains`) can render directly from a single `getById()`/`getBySlug()` call, no extra queries. Empty array for a top-level collection. |
+| `product_count` | Queried from the *product* Meilisearch index at collection-index time | Display only. How many products are in this collection **or any of its descendants** — matches what `ProductService::list(ProductFilters(collectionId: ...))` would return, not just direct assignment. Computed via `Product::search('')->options(['filter' => "collection_ids = \"{id}\""])`, so it depends on the product index already being current — reindex products *before* collections (see "Gotchas" below). |
+
+`name`/`description` (and any other `TranslatedText` attribute) are indexed per-locale
+by Lunar's base indexer and resolved by `CollectionService` exactly like
+`ProductService` does — see `product-listing.md`'s "Locale resolution" section, same
+logic, same `LanguageCache::defaultLocale()` fallback.
+
+---
+
+## Usage
+
+```php
+use Modules\Core\Catalog\DTOs\CollectionFilters;
+use Modules\Core\Catalog\Enums\CollectionSort;
+use Modules\Core\Catalog\Services\CollectionService;
+
+$service = app(CollectionService::class);
+
+// Top-level collections only (parent_id IS NULL) — for building a nav tree
+$roots = $service->list(
+    filters: new CollectionFilters(rootOnly: true),
+    sort: CollectionSort::Position,
+);
+
+// Children of a specific collection
+$children = $service->list(
+    filters: new CollectionFilters(parentId: 222),
+    sort: CollectionSort::Position,
+);
+
+// Filter by collection group
+$collections = $service->list(filters: new CollectionFilters(groupId: 4));
+
+// Single collection, by primary key or slug
+$collection = $service->getById(223);
+$collection = $service->getBySlug('keychains');
+```
+
+`CollectionFilters(parentId: ..., rootOnly: ...)` are mutually exclusive — if both are
+set, `parentId` wins. There's no `parentId: null` shorthand for "root only", since
+that would be ambiguous with "don't filter by parent at all" (the DTO's actual
+default); `rootOnly` names the root-collections case explicitly instead.
+
+`CollectionSort::Position` (`_lft:asc`) is the recommended default for any nav/tree
+UI — it matches the order an admin arranges collections in Lunar's own Filament UI.
+`Name` and `Newest` are also available, mirroring `ProductSort`'s shape.
+
+---
+
+## Registration
+
+Like `ProductIndexer`, `CollectionIndexer` must be registered in the consuming app's
+own `config/lunar/search.php`:
+
+```php
+'indexers' => [
+    Lunar\Models\Collection::class => Modules\Core\Catalog\Services\CollectionIndexer::class,
+    // ...
+],
+```
+
+New/changed fields aren't filterable/sortable in Meilisearch until `php artisan
+lunar:meilisearch:setup` re-syncs index settings, and existing documents need
+`lunar:search:index --refresh` to pick up the new shape. If `SCOUT_QUEUE` is enabled,
+the queue worker also needs restarting after deploying changes to the indexer class —
+see `docs/lunar.md` "Gotchas".
+
+**`product_count` needs the product index reindexed first.** `config/lunar/search.php`'s
+`indexers` array is typically ordered `Collection` before `Product`, so a plain
+`lunar:search:index --refresh` computes `product_count` against whatever the product
+index held *before* this run — stale if products changed too. `lunar:search:index`
+takes an explicit model list as its argument (`--ignore` restricts it to only those),
+so reindex products first, then collections, when both need a fresh `--refresh` in the
+same deploy:
+
+```
+php artisan lunar:search:index "Lunar\Models\Product" --ignore --refresh
+php artisan lunar:search:index "Lunar\Models\Collection" --ignore --refresh
+```
+
+---
+
+## When to still use Eloquent directly
+
+A single collection's full detail page (breadcrumb via `$collection->breadcrumb`,
+tree ancestors/descendants, route-model-bound `Collection $collection` in a
+controller signature) should keep reading Eloquent directly rather than going through
+`CollectionService` — the indexed document doesn't carry ancestor chains or the full
+nested-set relations, and route-model binding already gives a controller the full
+model for free. `CollectionService` is for browsing/listing and lightweight
+by-id/by-slug lookups where a full Eloquent hydration would be wasteful, the same
+tradeoff `ProductService` makes for products.
@@ -50,7 +50,7 @@ fine — just keep admin/Livewire/webhook routes registered outside of it (as th

 ## Behavior

-`Modules\Core\Localization\LocaleMiddleware`:
+`Modules\Core\Localization\Middleware\LocaleMiddleware`:

 1. Reads the first path segment (`request()->segment(1)`).
 2. Matches it against `Lunar\Models\Language::code`.
@@ -68,7 +68,7 @@ and invalidated automatically. Adding, editing, or removing a language via the F

 ### How invalidation is wired (event-driven, not the observer itself)

-`Modules\Core\Localization\LanguageCacheObserver` observes `Lunar\Models\Language`'s
+`Modules\Core\Localization\Observers\LanguageCacheObserver` observes `Lunar\Models\Language`'s
 `created`/`updated`/`deleted` Eloquent events, but it's a thin trigger only — it doesn't do any
 invalidation work itself. It dispatches one of three events from
 `Modules\Core\Localization\Events` (`LanguageCreated`, `LanguageUpdated` — carrying the old
@@ -105,6 +105,33 @@ $language = $request->attributes->get('language');   // Lunar\Models\Language in

 Use `$language->id` when querying Lunar's translatable content (e.g. `Url::where('language_id', ...)`).

+### Shared view data — language switcher and `hreflang` tags
+
+The middleware also shares two variables with every view, via `View::share()`, so a layout's
+language switcher or `hreflang` tags don't have to recompute the language list themselves:
+
+```blade
+{{-- current locale --}}
+{{ $currentLocale }}   {{-- e.g. "el" --}}
+
+{{-- every OTHER configured language, each with its own URL for the current page --}}
+@foreach ($altLocales as $altLocale)
+    <a href="{{ $altLocale['url'] }}" hreflang="{{ $altLocale['code'] }}">{{ $altLocale['name'] }}</a>
+@endforeach
+```
+
+`$altLocales` is a **collection**, not a single value — deliberately, so it scales to any number
+of configured languages rather than assuming exactly two. Each entry is a plain array:
+
+| Key | Description |
+|---|---|
+| `code` | The language's `Lunar\Models\Language::code` (e.g. `en`) |
+| `name` | The language's display name |
+| `url` | The **current route**, re-generated with that language's code — via `route($routeName, [...])` when the current request matched a named route, or a bare `/{code}` fallback otherwise |
+
+A 3+ language store gets one `$altLocales` entry per additional language automatically — nothing
+about this shape assumes or special-cases a two-language store.
+
 ---

 ## Single-language shops
@@ -151,12 +178,41 @@ namespaced groups so nothing collides. `__()` resolves the translation for whate
 `App::getLocale()` currently is, which `LocaleMiddleware` already sets per-request (see
 "Behavior" above) — no extra wiring needed between the two systems.

+### Fallback locale follows the store's default language, not `config('app.fallback_locale')`
+
+`spatie/laravel-translation-loader`'s stock `LanguageLine::getTranslation()` falls back to
+`config('app.fallback_locale')` — a static `.env` value — when a key has no text for the current
+locale. That's a second, disconnected "default language" concept: an admin changing the default
+language via the Filament **Languages** resource has no effect on it, so an untranslated label
+could silently fall back to the wrong language.
+
+`Modules\Core\Localization\Models\LanguageLine` overrides `getTranslation()` to fall back to
+`LanguageCache::defaultLocale()` instead — the same `languages.default` flag `LocaleMiddleware`
+already treats as the single source of truth. It's swapped in via
+`config('translation-loader.model')` (the package's own documented extension point for
+"any model that extends `LanguageLine`"), set in `LocalizationServiceProvider::register()` so it
+wins regardless of provider boot order (Laravel's `mergeConfigFrom()` only fills in config keys
+not already set, so an explicit `register()`-time set always beats the package's own default).
+No consuming app configuration needed — this is automatic once `LocalizationServiceProvider` is
+registered.
+
 ### Seeding

 A starter set of common e-shop labels (`nav.*`, `cart.*`, `product.*`, `auth.*`, `search.*`,
-English + Greek) is seeded by `Modules\Core\Command\InstallLunarCommand` (overrides Lunar's own
-`lunar:install`), guarded by `LanguageLine::where('group', 'storefront')->exists()` — same
-idempotent pattern as the rest of that command, safe to run unattended on every boot.
+`review.*`, `shop.*`, `pagination.*`, English + Greek) lives in
+`Modules\Core\Localization\Services\StorefrontLabels::all()` — kept as its own class, separate
+from the seeding logic, so the label list can be scanned/diffed without wading through the
+seeding mechanics.
+
+`Modules\Core\Command\InstallLunarCommand` (overrides Lunar's own `lunar:install`) seeds them via
+a **per-key upsert**, not an all-or-nothing "only seed if the group is empty" guard: a key already
+present in the database — including one an admin has since edited via the Filament **Language
+Lines** resource — is left untouched; only keys missing entirely are created. This is what makes
+it safe to add new keys to `StorefrontLabels::all()` later and re-run `lunar:install` on an
+already-installed store, without either silently skipping the new keys (the old guard's behavior)
+or reverting an admin's edits back to the hardcoded default (what a naive `updateOrCreate` would
+do). New writes go through `TranslationService::create()`, so the usual cache-invalidation and
+activity-log events fire for them too.

 ### Admin UI

@@ -168,13 +224,13 @@ a third language automatically adds a third input, no resource changes needed.

 ### `TranslationService` — writes go through here, not the model directly

-`Modules\Core\Localization\TranslationService` wraps create/update/delete on `LanguageLine` and
+`Modules\Core\Localization\Services\TranslationService` wraps create/update/delete on `LanguageLine` and
 dispatches a domain event after each write, following this project's standard event-driven
 pattern (see `modules.md`'s "Splitting Service Providers" / event-listener convention —
 the same shape as `Modules\Core\Auth\Events\UserCreated`):

 ```php
-use Modules\Core\Localization\TranslationService;
+use Modules\Core\Localization\Services\TranslationService;

 app(TranslationService::class)->create('storefront', 'nav.wishlist', [
    'en' => 'Wishlist',
@@ -554,7 +554,11 @@ Customer resolution order: session → `$user->latestCustomer()`.
 ```php
 use Lunar\Facades\CartSession;

-$cart = CartSession::current();       // calculates totals; returns null if no cart
+$cart = CartSession::current();       // returns null unless a cart already exists in
+                                       // session — does NOT auto-create one (see Gotchas)
+$cart = CartSession::manager();       // force-creates a cart if none exists yet — use
+                                       // this (or __call forwarding, see Gotchas) for
+                                       // "give me a cart to add to" flows
 $cart->recalculate();                 // force recalculation

 CartSession::createOrder();           // creates order, removes cart from session
@@ -563,6 +567,39 @@ CartSession::forget();                // clear session (soft deletes cart by def
 CartSession::forget(delete: false);   // clear session, keep cart in DB
 ```

+Session/identity: the active cart's id is stored under session key `lunar.cart_session.session_key`
+(default `lunar_cart`). `CartSession`'s underlying manager (`Lunar\Managers\CartSessionManager`) —
+not `Lunar\Base\CartSessionInterface`, which is stale/incomplete, see Gotchas — resolves the current
+cart from that session key, falling back to the authenticated user's active cart
+(`$user->carts()->active()->first()`) if the session has none.
+
+### `config/lunar/cart_session.php`
+
+| Key | Default | Meaning |
+|---|---|---|
+| `session_key` | `'lunar_cart'` | Laravel session key storing the active cart id. |
+| `auto_create` | `false` | Whether `CartSession::current()` auto-creates a cart when none exists — it does **not**, by default (see Gotchas). |
+| `allow_multiple_orders_per_cart` | `false` | If false, a cart with a completed order is abandoned in favor of a fresh cart on next fetch. |
+| `delete_on_forget` | `true` | Whether `forget()` (called on logout) soft-deletes the cart — see the auth-policy note above. |
+
+### `config/lunar/cart.php` (cart-line-relevant keys)
+
+| Key | Default | Meaning |
+|---|---|---|
+| `auth_policy` | `'merge'` | Guest→user cart reconciliation on login: `merge` or `override`. |
+| `pipelines.cart` | `CalculateLines, ApplyShipping, ApplyDiscounts, CalculateTax, Calculate` | Steps run on `$cart->calculate()`. |
+| `pipelines.cart_lines` | `[GetUnitPrice::class]` | Steps run per-line before cart-level calc. |
+| `actions.add_to_cart` | `AddOrUpdatePurchasable::class` | Swappable action behind `Cart::add()`. |
+| `actions.get_existing_cart_line` | `GetExistingCartLine::class` | Line-matching logic for add-or-merge (see "Adding items" above). |
+| `actions.update_cart_line` | `UpdateCartLine::class` | Behind `Cart::updateLine()`. |
+| `actions.remove_from_cart` | `RemovePurchasable::class` | Behind `Cart::remove()`. |
+| `validators.add_to_cart` | `[CartLineQuantity, CartLineStock]` | Run before add. |
+| `validators.update_cart_line` | `[CartLineQuantity, CartLineStock]` | Run before update. |
+| `validators.remove_from_cart` | `[]` | None by default. |
+| `eager_load` | 7 relation paths (currency, `lines.purchasable.*`, `lines.cart.currency`) | Auto-eager-loaded whenever the session manager fetches a cart by id. Does **not** include `addresses`/`shippingAddress`/`billingAddress`, `discounts`, or `customer` — add these yourself if needed, to avoid N+1s. |
+| `prune_tables.enabled` | `false` | Whether scheduled cart pruning runs. |
+| `prune_tables.prune_interval` | `90` (days) | Age threshold for pruning. |
+
 ### Adding items

 ```php
@@ -573,6 +610,11 @@ $cart->addLines([
 ]);
 ```

+`add()` matches an existing line by purchasable **and exact `meta` equality** (config
+`lunar.cart.actions.get_existing_cart_line`, default `GetExistingCartLine`) — if it matches, the
+existing line's quantity is incremented instead of a new line being created; any difference in
+`meta` (e.g. a different chosen option) makes it a separate line for the same purchasable.
+
 ### Updating and removing

 ```php
@@ -664,6 +706,14 @@ class MyPipeline
 `merge` — guest cart items combine with user's existing cart on login.
 `override` — guest cart replaces user's cart.

+This is wired via `Lunar\Listeners\CartSessionAuthListener`, listening on Laravel's own
+`Illuminate\Auth\Events\Login`/`Logout`. On login, if the session already has a cart with no
+`user_id` yet, it associates that cart to the user (running the policy above); if the session has
+no cart at all, it looks up and resumes the user's own active cart instead. **On logout, it calls
+`CartSession::forget()`** — which, per `cart_session.delete_on_forget` (default `true`), **soft-
+deletes the cart**. A logged-in customer's cart is gone on logout unless that config is set to
+`false`.
+
 ### Shipping options

 ```php
@@ -1206,6 +1256,13 @@ Real bugs/traps hit while building against Lunar in this package — not obvious
 - **`ProductOption.handle` must be unique and non-null if a product has more than one option.** Lunar's Filament variant-switcher widget does `SelectFilter::make($option->handle)` per option — two options with a `null`/matching handle throws "Filter must have a unique name" as a 500 when opening that product's variant pricing page. Always derive a slug and check uniqueness.
 - **`Attribute.position` is per-group, and the panel sorts by it.** Hardcoding `position => 1` for multiple new attributes in the same group makes their order undefined/collide with existing attributes at position 1. Compute `max('position') + 1` per group instead.
 - **Currency `decimal_places` isn't always 2.** A seeded/demo currency can have the wrong value (seen: EUR seeded with `decimal_places = 1`), which silently corrupts every price display (`€16.50` renders as `165`). If prices look wrong by a factor of 10, check the currency row before assuming the price-writing code is broken.
- **`Builder::paginateRaw()`'s `items()` is not a hit list on the Meilisearch driver.** It contains the *entire* raw response (`hits`, `query`, `processingTimeMs`, `hitsPerPage`, `page`, `totalPages`, `totalHits`) as one associative array. Treating `$paginator->items()` as a plain list (e.g. `collect($paginator->items())->values()`) silently produces 7 elements — the real hits array happens to land first, the rest are stray scalars from the other response keys — no error, just corrupted data. Pull `$paginator->items()['hits']` explicitly. `total()`/`perPage()`/`currentPage()`/`lastPage()` on the paginator are unaffected. See `Modules\Core\Catalog\ProductService` / `docs/product-listing.md`.
- **`ProductOption`/`ProductOptionValue::$name` is not `attribute_data` — `translateAttribute('name')` silently returns null for them.** Unlike `Product`/`Collection`/`Brand`, their translated `name` is a plain locale-keyed array cast (`AsArrayObject`) directly on the column, not stored in `attribute_data`. `HasTranslations::translateAttribute()` only reads `attribute_data`, so calling it on these two models compiles fine and returns `null` with no error — read the array directly instead (`$value->name[$locale] ?? ...`). See `Modules\Core\Search\ProductIndexer::translatedName()`.
+- **`Builder::paginateRaw()`'s `items()` is not a hit list on the Meilisearch driver.** It contains the *entire* raw response (`hits`, `query`, `processingTimeMs`, `hitsPerPage`, `page`, `totalPages`, `totalHits`) as one associative array. Treating `$paginator->items()` as a plain list (e.g. `collect($paginator->items())->values()`) silently produces 7 elements — the real hits array happens to land first, the rest are stray scalars from the other response keys — no error, just corrupted data. Pull `$paginator->items()['hits']` explicitly. `total()`/`perPage()`/`currentPage()`/`lastPage()` on the paginator are unaffected. See `Modules\Core\Catalog\Services\ProductService` / `docs/product-listing.md`.
+- **`ProductOption`/`ProductOptionValue::$name` is not `attribute_data` — `translateAttribute('name')` silently returns null for them.** Unlike `Product`/`Collection`/`Brand`, their translated `name` is a plain locale-keyed array cast (`AsArrayObject`) directly on the column, not stored in `attribute_data`. `HasTranslations::translateAttribute()` only reads `attribute_data`, so calling it on these two models compiles fine and returns `null` with no error — read the array directly instead (`$value->name[$locale] ?? ...`). See `Modules\Core\Catalog\Services\ProductIndexer::translatedName()`.
 - **A running `queue:work` process does not pick up an edited/newly-added Scout indexer class.** It loads PHP classes once at boot and keeps them for the process's lifetime. Symptoms: reindexing commands succeed with no errors, calling `toSearchableArray()` directly (e.g. via `artisan tinker`, which always boots fresh) returns the new fields correctly, but documents written via `$model->searchable()` through the live queue are still missing them. Restart the queue worker after deploying an indexer change — no code fix needed.
+- **`CartSession::current()` returns `null` for a fresh visitor by default.** `cart_session.auto_create` defaults to `false`, so nothing auto-creates a cart just from checking `current()`. Use `CartSession::manager()` (force-creates) for an "add to cart" flow, or rely on the fact that `add()`/`remove()`/etc. auto-create via `__call` forwarding (next entry) — don't gate an add-to-cart button on `current() !== null`, it will be null for every guest who hasn't added anything yet.
+- **`CartSession`'s facade/interface don't declare `add()`, `remove()`, `updateLine()`, `clear()`, etc. at all — they work anyway, via `__call` magic.** `CartSessionManager::__call()` forwards any undeclared method call straight to the underlying `Cart` model (auto-creating one first if needed). So `CartSession::add($variant, 2)` genuinely works, but neither the facade's `@method` docblock nor `Lunar\Base\CartSessionInterface` mention it — reading either in isolation makes it look unsupported. Trust the manager's source (`Lunar\Managers\CartSessionManager`), not the interface, which is also missing several real methods (`manager()`, `createOrder()`, the shipping-estimate methods) and has a stale signature for `current()`.
+- **`Cart::calculate()` is a no-op if totals already look populated — even right after you mutated lines with raw Eloquent.** It's memoized via `isCalculated()` (true when `total` and every line's `total` are non-blank). Every built-in mutator (`add`, `remove`, `updateLine`, `clear`, `associate`, …) already calls `$this->refresh()->recalculate()` to force past this memo — but custom code that touches `CartLine` rows directly (raw `update()`, a queued job, a migration) must call `$cart->recalculate()` itself, or `total`/`subTotal`/etc. silently stay stale.
+- **`CartLine`'s computed properties (`unitPrice`, `subTotal`, `total`, `taxAmount`, …) are plain public properties, not DB columns or Eloquent attributes.** A raw `CartLine::find($id)` (no `calculate()` having run on its owning cart) has all of these as `null`/unset — they only populate as a side effect of the owning `Cart`'s pipeline running. Don't read them off a line fetched outside of `CartSession`/`Cart::add()` etc. without calling `$cart->calculate()` first.
+- **Logging out deletes the cart by default.** `CartSessionAuthListener::logout()` calls `CartSession::forget()`, and `cart_session.delete_on_forget` defaults to `true` — so a logged-in customer's cart is soft-deleted the moment they log out, guest or not. Set `delete_on_forget` to `false` in `config/lunar/cart_session.php` if carts should survive a logout.
+- **Lunar dispatches no cart events at all** — no "item added," "cart created," "line removed," nothing under `Lunar\Events\Cart*`/`CartLine*` exists (unlike products/collections, which have their own Scout indexing hooks). The only reactive surface is `CartLineObserver` (`creating`/`updating`, and it only validates the purchasable type — doesn't dispatch anything). If a feature needs to react to cart changes (reindexing, abandoned-cart notifications, analytics), it has to be built from scratch on plain Eloquent model events (`CartLine::created`, etc.) — there's no Lunar-native pattern to hook into.
+- **No Filament admin resource exists for `Cart`/`CartLine`.** Carts aren't visible anywhere in the admin panel except indirectly through an order's `cart` relationship once that cart has become an order. Don't assume there's an admin cart-viewer to check against when debugging — there isn't one.
@@ -1,10 +1,10 @@
 # Product Listing

-`Modules\Core\Catalog\ProductService` provides catalog browsing/filtering AND single-product
+`Modules\Core\Catalog\Services\ProductService` provides catalog browsing/filtering AND single-product
 lookup for a storefront — `list()`, `getById()`, `getBySlug()` — all reading directly from the
 Meilisearch index rather than the database. One data source for everything this service does.

-This is separate from `Modules\Core\Search\ProductSearchService` (see `product-search.md`), which
+This is separate from `Modules\Core\Catalog\Services\ProductSearchService` (see `product-search.md`), which
 handles free-text query search. `ProductService` is for browsing/lookup without a search term.

 ---
@@ -14,7 +14,7 @@ handles free-text query search. `ProductService` is for browsing/lookup without
 Every method here reads Meilisearch documents directly and returns plain arrays — never Scout's
 `->get()`, which would re-hydrate Eloquent models from the database. This means the index has to
 carry everything a detail page needs (variants, prices, options, media, reviews — see below), not
-just the trimmed fields a listing page needs. `Modules\Core\Search\ProductIndexer` is built to
+just the trimmed fields a listing page needs. `Modules\Core\Catalog\Services\ProductIndexer` is built to
 carry that full shape.

 ---
@@ -22,61 +22,100 @@ carry that full shape.
 ## Usage

 ```php
-use Modules\Core\Catalog\ProductFilters;
-use Modules\Core\Catalog\ProductService;
+use Modules\Core\Catalog\DTOs\ProductFilters;
+use Modules\Core\Catalog\Services\ProductService;
+use Modules\Core\Catalog\Enums\ProductSort;

 $service = app(ProductService::class);

-// List everything, paginated
-$result = $service->list(perPage: 24, page: 1);
+// List everything, paginated — returns a real Illuminate\Pagination\LengthAwarePaginator,
+// built from the localized Meilisearch hits (not Scout's own paginateRaw() result — see
+// "Meilisearch driver quirk" below), so it behaves like any other Laravel paginator.
+$products = $service->list(perPage: 24, page: 1);

-// Filter by collection, brand, and/or price range
-$result = $service->list(
-    filters: new ProductFilters(collectionId: 17, minPrice: 10.0, maxPrice: 50.0),
+// Filter by collection, brand, price range, and/or stock
+$products = $service->list(
+    filters: new ProductFilters(collectionId: 17, minPrice: 10.0, maxPrice: 50.0, inStockOnly: true),
    perPage: 24,
    page: 1,
 );

-$result['data'];               // array of Meilisearch documents (plain arrays, not models)
-$result['meta']['total'];
-$result['meta']['per_page'];
-$result['meta']['current_page'];
-$result['meta']['last_page'];
+// Sort — cheapest/priciest first, or newest first. Omit for Meilisearch's default
+// relevance ordering (irrelevant here since the query is always empty).
+$products = $service->list(perPage: 24, page: 1, sort: ProductSort::PriceAsc);
+
+$products->items();            // array of Meilisearch documents (plain arrays, not models)
+$products->total();
+$products->perPage();
+$products->currentPage();
+$products->lastPage();
+$products->links();            // in a Blade view — renders pagination links as usual

 // Single product, by primary key
 $product = $service->getById(367);   // array, or null if not found

 // Single product, by URL slug (any locale — slugs are indexed across all languages)
 $product = $service->getBySlug('erotika-mprelok');   // array, or null if not found
+
+// Facet counts for a sidebar — value => matching product count, scoped to whatever
+// $filters is passed. Does NOT exclude the faceted field itself from $filters — see
+// facets()'s docblock for why, and how to build a standard "every option's count,
+// unaffected by that option's own currently-selected value" sidebar.
+$brandCounts = $service->facets('brand', filters: new ProductFilters(collectionId: 17));
+// ['3Dealer.gr - 3D printed creations' => 48, 'Kraniou Topos - 3D printed creations' => 135]
+
+// Min/max price across matching products, for sizing a price-range slider.
+// minPrice/maxPrice are ALWAYS excluded from the filter driving this (unlike
+// facets(), which doesn't auto-exclude) — the slider's own bounds shouldn't shrink
+// to whatever range is currently selected on it. Other filters (collectionId,
+// brand, inStockOnly) still apply normally.
+$range = $service->priceRange(new ProductFilters(collectionId: 17));
+// ['min' => 0.0, 'max' => 120.0]
 ```

 All `ProductFilters` fields are optional; only the ones set are added to the Meilisearch query.

+`facets()` only makes sense on discrete-value filterable fields (`brand`, `in_stock`) — a numeric
+field like `price` would return one "facet" per exact price, not a usable range bucket. Use
+`priceRange()` for `price` instead, which reads Meilisearch's `facetStats` (min/max), a different
+feature from `facetDistribution`.
+
 ---

-## Fields this depends on: `Modules\Core\Search\ProductIndexer`
+## Stock goes stale between orders
+
+`in_stock` reflects `ProductVariant::stock`/`purchasable` as of the **last reindex**, not live
+inventory. Nothing in this codebase currently reindexes a product when an order decrements its
+stock — that's a cart/checkout concern, not something `ProductIndexer` can solve on its own (see
+`Modules\Core\Catalog\Observers\ProductOptionReindexObserver` for the equivalent pattern once an
+order → stock → reindex pipeline exists to hook into). Until then, `in_stock`/`product_count` can
+drift from the database the same way every other indexed field already can between writes.
+
+---
+
+## Fields this depends on: `Modules\Core\Catalog\Services\ProductIndexer`

 Lunar's own `Lunar\Search\ProductIndexer` only carries listing-grade fields (name, description,
 status, brand, a single thumbnail, skus) and marks just `__soft_deleted`, `skus`, `status` as
-filterable. `Modules\Core\Search\ProductIndexer` extends it to add everything `ProductService`
+filterable. `Modules\Core\Catalog\Services\ProductIndexer` extends it to add everything `ProductService`
 needs, listing and detail alike:

 | Field | Source | Notes |
 |---|---|---|
 | `id` | — | Newly marked **filterable** — needed for `getById()`'s `id = "..."` filter; Meilisearch doesn't filter on the primary key by default. |
-| `collections` | `$product->collections->pluck('id')` | Filterable. Array of collection IDs (as strings) — filtering matches by ID, not slug. |
-| `collection_names` | `$product->collections` | Display only, not filterable — translated collection names. |
+| `collections` | `$product->collections` | Array of `{id, name}` — directly assigned collections only, `name` is the translated collection name. Not filterable — see `collection_ids`. |
+| `collection_ids` | `$product->collections` + `->ancestors` | Filterable. Flat array of every directly-assigned collection's id, unioned with all of its ancestors' ids. `ProductFilters(collectionId: ...)` filters against this field, not `collections`, since products are typically attached only to leaf collections — a plain direct-match filter would never return anything for a parent/root category page. |
 | `slugs` | `$product->urls->pluck('slug')` | Filterable. Every locale's `Url::slug` for the product, so `getBySlug()` resolves purely from the index — no database read. |
 | `price` | Cheapest variant's base price | Filterable. Float in major units (e.g. `19.99`, not `1999`). Base price only — no customer group, default currency (`Currency::getDefault()`) only. `null` if the product has no priced variant yet, so it's excluded from range filters rather than treated as free. |
 | `brand` | Already indexed by Lunar's base indexer | Newly marked **filterable** — it existed in the document already, just wasn't usable in a `filter` clause. |
 | `tags` | `$product->tags->pluck('value')` | Display only. |
 | `media` | `$product->media` | Full gallery (id/url/thumb per image), not just the single thumbnail Lunar's base indexer sends. |
 | `variants` | `$product->variants` | Per variant: `id`, `sku`, `stock`, `purchasable`, `options` (option/value names, in the current locale), `prices` (per currency/customer group), `media` (variant-specific images). |
-| `reviews`, `review_count`, `average_rating` | `Modules\Core\Review\Models\ProductReview` | See "Reviews" below. |
+| `reviews` | `Modules\Core\Review\Models\ProductReview` | `{items, count, average_rating}` — see "Reviews" below. |
+| `in_stock` | `$model->variants` | Filterable boolean. `true` if ANY variant currently passes `ProductVariant::canBeFulfilledAtQuantity(1)` — Lunar's own purchasability rule (`purchasable === 'always'` ignores stock entirely; `in_stock` checks `stock` alone; anything else checks `stock + backorder`). Only as fresh as the last reindex — see "Stock goes stale" below. |

-`description` and other translated attributes are indexed as-is, including any HTML markup
-(e.g. from a Shopify `Body (HTML)` import) — **not stripped**. Any view rendering a description
-sourced from `ProductService`'s results must treat it as trusted HTML.
+`name`/`description` (and any other `TranslatedText` attribute) are indexed per-locale — see
+"Locale resolution" below for how `ProductService` resolves them down to one value per request.

 **`ProductOption`/`ProductOptionValue` names need a different translation accessor.** Unlike
 `Product`/`Collection`/`Brand`, their `name` is a plain locale-keyed array cast, not
@@ -85,13 +124,41 @@ indexer's `translatedName()` reads the array directly instead. See `docs/lunar.m

 ---

+## Locale resolution: `name`, `description`, and any other translated attribute
+
+Lunar's base `ScoutIndexer` explodes every `TranslatedText` attribute into one `{handle}_{locale}`
+field per store language at index time (`name_el`, `name_en`, `description_el`, ... — and the same
+for any custom translated attribute a store adds, e.g. `seo_title`/`seo_description`). Every raw
+document in Meilisearch carries all of them side by side, since a document is written once but
+read across many different-locale requests.
+
+`ProductService` resolves these back down to a single value per request. For every result it
+returns (`list()`'s items, `getById()`, `getBySlug()`), it:
+
+1. Reads which `Product` attributes are `TranslatedText` from `Lunar\Base\AttributeManifest` — the
+   same source Lunar's own indexer reads — rather than a hardcoded `['name', 'description']` list,
+   so a store's own custom translated attributes are picked up automatically with no change here.
+2. For each one, resolves `{handle}_{currentLocale}`, falling back to `{handle}_{storeDefaultLocale}`
+   (`LanguageCache::defaultLocale()`) if the current locale has no translation — e.g. a product with
+   no English copy yet still shows its Greek name on `/en/` rather than rendering blank.
+3. Assigns the result to a plain `{handle}` key and **strips every raw `{handle}_{locale}` key** —
+   callers only ever see `$product['name']`/`$product['seo_title']`/etc., never the per-locale
+   fields the index actually stores.
+
+`description` and other translated attributes are otherwise indexed as-is, including any HTML
+markup (e.g. from a Shopify `Body (HTML)` import) — **not stripped**. Any view rendering a
+description sourced from `ProductService`'s results must treat it as trusted HTML.
+
+---
+
 ## Reviews

-`Modules\Core\Review\Models\ProductReview` (`product_reviews` table) is indexed per-product as
-`reviews` (array), plus `review_count` and `average_rating` (rounded to 1 decimal, `null` if the
-product has no reviews). Only public-safe fields are included — **`reviewer_email` is deliberately
-excluded**, it's PII with no storefront use. `reply`/`replied_at` (the staff response) are
-included, since they're meant to be shown alongside the review.
+`Modules\Core\Review\Models\ProductReview` (`product_reviews` table) is indexed per-product under
+a single `reviews` key: `{items, count, average_rating}` — `items` is the array of reviews,
+`average_rating` is rounded to 1 decimal (`null` if the product has no reviews). Only public-safe
+fields are included on each item — **`reviewer_email` is deliberately excluded**, it's PII with no
+storefront use. `reply`/`replied_at` (the staff response) are included, since they're meant to be
+shown alongside the review.

 A review is created/edited independently of its product (a customer submission, a staff reply)
 — its own save doesn't touch the `Product` row, so the product's own model events never fire.
@@ -113,13 +180,28 @@ variants don't.

 ---

+## Sorting
+
+`ProductSort` (`Modules\Core\Catalog\Enums\ProductSort`) is a fixed enum of supported sort orders —
+`PriceAsc`, `PriceDesc`, `Newest` — each mapping to a Meilisearch `sort` clause against a field
+`Modules\Core\Catalog\Services\ProductIndexer::getSortableFields()` marks sortable (`price`, plus
+`created_at`/`updated_at`/`skus`/`status` inherited from Lunar's base indexer). Adding a new
+`ProductSort` case requires adding the matching field to `getSortableFields()` and re-syncing (see
+below) — sortable attributes are index settings, not computed per-query, same as filterable ones.
+
+Omitting `sort` leaves Meilisearch's default ordering, which is meaningless here since `list()`
+always searches with an empty query string (`Product::search('')`) — there's no relevance score to
+rank by, so results come back in whatever order the index returns them absent an explicit sort.
+
+---
+
 ## Registering the indexer

 Not automatic — an app opts in via its own `config/lunar/search.php`:

 ```php
 'indexers' => [
-    Lunar\Models\Product::class => Modules\Core\Search\ProductIndexer::class,
+    Lunar\Models\Product::class => Modules\Core\Catalog\Services\ProductIndexer::class,
    // ...other model indexers unchanged
 ],
 ```
@@ -0,0 +1,113 @@
+# Product Option Types
+
+Lunar's `ProductOption`/`ProductOptionValue` are generic by design — a "Color" option
+and a "Size" option are both just a handle, a translated name, and a list of values.
+Each `ProductOptionValue` carries a free-form `meta` jsonb column, but nothing in
+Lunar's own admin UI exposes it — there's no way for an admin to, say, attach a hex
+code to a "Red" value without editing the database directly.
+
+`Modules\Core\Catalog\Contracts\ProductOptionTypeInterface` describes how a category
+of option behaves — what structured data its values carry in `meta`, and how an
+admin edits that data — without introducing a new model. `ProductOption`/
+`ProductOptionValue` stay exactly as Lunar defines them.
+
+---
+
+## Registering a type
+
+A shop registers a type class from its own service provider's `boot()`, the same
+shape as `Modules\Core\Notification\NotificationRegistry`:
+
+```php
+use Modules\Core\Catalog\Services\ProductOptionTypeManager;
+
+ProductOptionTypeManager::get()->register([
+    \App\ProductOptions\ColorOptionType::class,
+]);
+```
+
+Not a published config array — the mapping isn't per-`ProductOption`, so there's
+nothing for a shop to *key* by. Instead, an admin picks a type per-option from a
+dropdown on the `ProductOption` edit form itself (see below); the choice is stored
+in `ProductOption::meta['option_type']`, deliberately **not** tied to the option's
+`handle` (a shop's own handle naming — transliterated Greek, legacy import slugs —
+shouldn't have to match a type's key).
+
+A `ProductOption` with no type selected behaves exactly as stock Lunar does — plain
+name/position, no extra meta form.
+
+---
+
+## Writing a type
+
+```php
+namespace App\ProductOptions;
+
+use Filament\Forms\Components\ColorPicker;
+use Modules\Core\Catalog\Contracts\ProductOptionTypeInterface;
+
+class ColorOptionType implements ProductOptionTypeInterface
+{
+    public static function getKey(): string
+    {
+        return 'color';
+    }
+
+    public function getMetaForm(): array
+    {
+        return [
+            ColorPicker::make('meta.hex')
+                ->label('Color')
+                ->required(),
+        ];
+    }
+}
+```
+
+`getMetaForm()` returns Filament form components, keyed under `meta.*` dot notation
+— the path they save to on `ProductOptionValue::meta` (cast as `AsArrayObject`, a
+plain jsonb column). `getKey()` is the identifier used in the admin's "Option Type"
+dropdown and in `ProductOption::meta['option_type']` — it has no relationship to the
+`ProductOption::handle`.
+
+A reference implementation ships at `Modules\Core\Catalog\OptionTypes\ColorOptionType`,
+registered automatically by `Modules\Core\Providers\CatalogServiceProvider` — no shop
+setup needed for it to appear in the "Option Type" dropdown, though an admin still
+has to pick it per-`ProductOption` for it to take effect.
+
+---
+
+## How it's wired into the admin UI
+
+`Modules\Core\Catalog\Services\ProductOptionTypeManager` is a singleton registry:
+- `get(): static` — the shared instance.
+- `register(array $types): void` — registers one or more type classes, keyed
+  internally by `getKey()`.
+- `unregister(string $key): void`
+- `resolve(?string $key): ?ProductOptionTypeInterface` — looks up a registered type
+  by key (or `null` if no key / not found).
+- `all(): array<string, class-string>` — every registered type's class, keyed by
+  `getKey()`.
+
+Two extensions hook into Lunar's admin via its extension system
+(`LunarPanel::extensions([...])`, registered in `CorePlugin`) — no forking of Lunar's
+classes needed:
+
+- `Modules\Core\Catalog\Filament\Extensions\ProductOptionResourceExtension` extends
+  `Lunar\Admin\Filament\Resources\ProductOptionResource`'s own form with a `Select`
+  (`meta.option_type`) listing every enabled type's key. Shown only when at least one
+  type is enabled.
+- `Modules\Core\Catalog\Filament\Extensions\ValuesRelationManagerExtension` extends
+  the "Values" tab's form. Its `extendForm()` reads
+  `$option->meta['option_type']` off the owning `ProductOption`, resolves it via
+  `ProductOptionTypeManager`, and appends `getMetaForm()`'s fields to the stock name
+  field. A `ProductOption` with no type selected gets the stock form unchanged.
+
+---
+
+## Reading the value back
+
+Storefront code reads `ProductOptionValue::meta` like any other jsonb column — e.g.
+`$value->meta['hex']` for a color swatch. `ProductOptionTypeManager` is an admin-side
+concern only (describing *how to edit* the meta); nothing requires the storefront to
+go through it to *read* the meta.
@@ -1,6 +1,6 @@
 # Product Search

-`Modules\Core\Search\ProductSearchService` provides locale-aware full-text product search on
+`Modules\Core\Catalog\Services\ProductSearchService` provides locale-aware full-text product search on
 top of Laravel Scout + Meilisearch.

 ---
@@ -24,7 +24,7 @@ merges `$builder->options` directly into the search request).
 ## Usage

 ```php
-use Modules\Core\Search\ProductSearchService;
+use Modules\Core\Catalog\Services\ProductSearchService;

 $results = app(ProductSearchService::class)->search('running shoes');
 // or an explicit locale, bypassing App::getLocale():
@@ -36,7 +36,7 @@ Returns an `Illuminate\Database\Eloquent\Collection` of `Lunar\Models\Product`
 (`variants`, `brand`, `media`, etc.) are available on the results as normal.

 `$locale` defaults to `App::getLocale()` — already set correctly on every storefront request by
-`Modules\Core\Localization\LocaleMiddleware` (see `localization.md`), so callers in controllers
+`Modules\Core\Localization\Middleware\LocaleMiddleware` (see `localization.md`), so callers in controllers
 don't need to pass it explicitly.

 ---
@@ -0,0 +1,128 @@
+# Cart/Checkout Recovery Strategies — Design Notes
+
+**Status: open design discussion, not scoped or built.** This is a record of the
+reasoning behind an eventual "Recovery Sequences" feature, kept so the discussion doesn't
+have to be re-derived from scratch later. Nothing in this document is implemented.
+
+See `docs/cart.md` for what's actually built today (the four-state cart classification,
+`CartAbandoned`/`CheckoutAbandoned` events, `DetectAbandonedCarts`).
+
+---
+
+## Why Abandoned Cart and Abandoned Checkout need different strategies
+
+Established in `docs/cart.md`: Abandoned Cart (no order ever started) is a weak purchase-intent
+signal and often unreachable (no identity for a true guest). Abandoned Checkout (a draft order
+exists, `placed_at IS NULL`) is a strong intent signal and usually reachable, since checkout
+typically captures an email/address even for a guest.
+
+That difference in intent and reachability drives genuinely different marketing strategy, not
+just a different admin filter:
+
+### Abandoned Cart strategy — re-engagement, not completion
+
+- **On-site retargeting first** (exit-intent popups, "still thinking it over?" banners on
+  return visits) — often the only viable channel, since email may not exist yet.
+- **Ad platform retargeting** (Meta/Google dynamic remarketing) is the dominant channel here
+  specifically because it works off a browser/device signal, not an email address — the one
+  thing reliably available for an anonymous cart.
+- **Soft messaging** ("did you forget something?") rather than urgency-driven — intent is
+  weak, so aggressive discounting is often poor ROI: it trains browsers who were never close
+  to buying to expect a coupon.
+- **Longer, gentler cadence** — a single reminder around 24h, maybe a second a few days out,
+  sometimes trigger-based (a price drop, back-in-stock) rather than a fixed schedule.
+
+### Abandoned Checkout strategy — completion, not re-engagement
+
+- **Speed matters most.** This is where the classic 1h/24h/72h recovery-email cadence lives —
+  conversion drops sharply with delay, since the shopper is often still in a "was about to
+  buy" mental state within the first hour.
+- **Direct, urgency-framed messaging** ("complete your order"), sometimes showing cart
+  contents/total, occasionally a countdown or limited-time incentive on later touches.
+- **Discount escalation pays off here** — a small incentive (free shipping, 10% off) on the
+  2nd/3rd touch is standard, because it's nudging someone who already decided to buy past
+  whatever blocked them (price shock, a broken payment step, indecision on shipping cost) —
+  not manufacturing demand from nothing.
+- **SMS is more viable** — checkout often captures a phone number, and the higher intent
+  justifies a more direct channel than for cart-stage.
+
+---
+
+## The broader strategy space (beyond cadence + discount)
+
+Raised as context for how far a "Recovery Sequence" feature might eventually need to flex,
+without committing to building any of it yet:
+
+**Message-content strategies**
+- Social proof ("X people have this in their cart," reviews shown in the reminder)
+- Scarcity/urgency framing (low-stock count, countdown timer on an offer)
+- Personalized alternatives — a cheaper or complementary item instead of just re-showing the
+  abandoned one, useful when the likely blocker was price
+
+**Channel strategies**
+- Email (the baseline; nothing built yet — see `docs/cart.md`'s "Recovery Sequences" section)
+- SMS — checkout-stage specifically, opt-in required
+- Push notifications — not relevant yet given this project's storefront maturity, noted for
+  completeness
+- On-site remarketing (banner/modal on the shopper's next visit) — doesn't require email at
+  all, arguably the highest-value channel for Abandoned Cart specifically
+- Ad platform sync (pushing abandoned-cart product data to a custom audience for paid retargeting)
+
+**Escalation/segmentation strategies**
+- Value-based branching — a high-value abandoned checkout might skip straight to a bigger
+  incentive rather than waiting through a full ladder
+- Repeat-abandoner suppression — a customer who's abandoned 3+ times without ever completing
+  either stops receiving emails (fatigue/spam risk) or gets a different tactic (e.g. a "what
+  stopped you?" survey) instead of another discount
+- New vs. returning customer branching — a first-time visitor's abandoned cart might warrant
+  "welcome discount" framing instead of a generic recovery email, since the blocker was
+  likely trust/unfamiliarity rather than price
+
+**Timing refinement**
+- Time-of-day/timezone-aware sending (don't fire a touch at 3am local time even if the delay
+  technically elapsed)
+- Cart-content-triggered timing — a fast-moving/low-stock item might warrant an earlier, more
+  urgent first touch than a cart of always-in-stock staples
+
+---
+
+## First-pass feature shape (discussed, not finalized)
+
+An admin defines, independently per abandonment type (Abandoned Cart, Abandoned Checkout), an
+ordered sequence of **touches**. Each touch is three ideas:
+
+1. **How long to wait** since the abandonment began
+2. **What offer to attach**, optional — reusing whatever `Discount` already exists in the
+   system rather than inventing a new pricing concept
+3. **A label**, so staff can see what a touch represents in the admin UI
+
+The system continuously re-evaluates every abandoned cart/checkout against its sequence, and
+when a cart becomes due for the next touch it hasn't had yet, that becomes a signal — this
+feature's responsibility ends there. Actually sending anything (email, SMS, on-site banner) is
+explicitly out of scope for this feature; something else, not yet designed, would consume that
+signal.
+
+### What this requires that isn't built yet
+
+- **A fixed "abandonment began at" timestamp**, captured once and never re-derived — a
+  sequence needs to schedule touches from a stable starting point, not from `Cart::updated_at`,
+  which keeps moving every time the cart (or its own bookkeeping) is written to. This is the
+  same underlying issue as the known bug in `docs/cart.md`'s "Abandonment detection" section —
+  fixing that bug properly (freezing the abandonment moment) is very likely a prerequisite for
+  this feature, not a separate concern.
+- **Re-evaluation, not one-shot detection** — `DetectAbandonedCarts` today marks a cart
+  abandoned once and stops; a sequence needs a cart to be revisited on every scheduler run to
+  check "which touch, if any, is now due," for as long as it stays unrecovered.
+
+### Still undecided
+
+- **Which concern this belongs under.** Not `Cart` (it's not a cart-mechanics concern) —
+  candidates raised: a new `Recovery` concern, or `Marketing`. Not decided.
+- **How far the touch model needs to flex.** The three-idea shape above (delay, discount,
+  label) covers cadence + discount escalation cleanly, but doesn't yet accommodate channel
+  choice, value-based branching, or segment targeting from the broader strategy list above.
+  Whether those get folded into the touch model, layered on top some other way, or deliberately
+  left out of v1 is unresolved.
+- **Whether "recovery" is cart/checkout-specific at all**, or a more general "scheduled
+  customer touch based on a triggering condition" mechanism that cart/checkout abandonment
+  happens to be the first use case for.
@@ -0,0 +1,84 @@
+<?php
+
+namespace Modules\Core\Cart\Commands;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\Event;
+use Lunar\Models\Cart;
+use Modules\Core\Cart\Filament\Resources\CartResource;
+use Modules\Core\Recovery\Events\CartAbandoned;
+use Modules\Core\Recovery\Events\CheckoutAbandoned;
+
+/**
+ * "Abandoned" is a derived state (Cart::updated_at older than
+ * config('core.cart.abandoned_after')) — nothing transitions a cart into it
+ * via a normal Eloquent write, so there's no model-event hook to dispatch
+ * CartAbandoned/CheckoutAbandoned from directly. This command is the only
+ * place that moment gets detected; run it on a schedule (see docs/cart.md).
+ *
+ * Splits Cart::scopeActive()'s two branches into their own events —
+ * see CartAbandoned/CheckoutAbandoned's docblocks for why they're distinct,
+ * not one combined "abandoned" state: a cart with no order at all is a much
+ * weaker purchase-intent signal than one with a draft order that was never
+ * placed.
+ *
+ * Deliberately does NOT write anything to Cart/Order — dispatch only. An
+ * earlier version recorded an "already notified" marker on Cart::meta/
+ * Order::meta, but that write bumped updated_at as an Eloquent side effect,
+ * which un-staled the very cart being marked abandoned (the same field
+ * abandonment staleness is computed from) — see docs/cart.md's former
+ * "Known bug" note. Cart/Checkout must have no way of writing abandonment
+ * state at all; every cart still matching the query below refires its event
+ * on every run until Recovery (not yet built — see
+ * docs/recovery-strategies.md) owns its own dedup/tracking table.
+ */
+class DetectAbandonedCarts extends Command
+{
+    protected $signature = 'boboko:cart:detect-abandoned';
+
+    protected $description = 'Dispatch CartAbandoned/CheckoutAbandoned for carts that just crossed the abandonment threshold.';
+
+    public function handle(): void
+    {
+        $cutoff = CartResource::abandonedCutoff();
+
+        $cartsAbandoned = 0;
+        $checkoutsAbandoned = 0;
+
+        Cart::query()
+            ->whereDoesntHave('orders')
+            ->where('updated_at', '<=', $cutoff)
+            ->with('lines')
+            ->chunkById(200, function ($carts) use (&$cartsAbandoned) {
+                foreach ($carts as $cart) {
+                    if ($cart->lines->isEmpty()) {
+                        continue;
+                    }
+
+                    Event::dispatch(new CartAbandoned($cart));
+
+                    $cartsAbandoned++;
+                }
+            });
+
+        Cart::query()
+            ->whereHas('orders', fn ($query) => $query->whereNull('placed_at'))
+            ->where('updated_at', '<=', $cutoff)
+            ->with(['orders' => fn ($query) => $query->whereNull('placed_at')])
+            ->chunkById(200, function ($carts) use (&$checkoutsAbandoned) {
+                foreach ($carts as $cart) {
+                    $order = $cart->orders->first();
+
+                    if ($order === null) {
+                        continue;
+                    }
+
+                    Event::dispatch(new CheckoutAbandoned($cart, $order));
+
+                    $checkoutsAbandoned++;
+                }
+            });
+
+        $this->components->info("Dispatched CartAbandoned for {$cartsAbandoned} cart(s), CheckoutAbandoned for {$checkoutsAbandoned} checkout(s).");
+    }
+}
@@ -0,0 +1,18 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+
+class CartCleared
+{
+    /**
+     * @param  array<int, array{id: int, purchasable_type: string, purchasable_id: int, quantity: int, meta: array}>  $lines
+     *   Snapshot of every line that was in the cart before clearing — Cart::clear()
+     *   deletes all rows directly, so nothing here can be fresh CartLine instances.
+     */
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly array $lines,
+    ) {}
+}
@@ -0,0 +1,13 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+
+class CartCouponApplied
+{
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly string $code,
+    ) {}
+}
@@ -0,0 +1,13 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+
+class CartCouponRemoved
+{
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly string $code,
+    ) {}
+}
@@ -0,0 +1,14 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+use Lunar\Models\CartLine;
+
+class CartLineAdded
+{
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly CartLine $line,
+    ) {}
+}
@@ -0,0 +1,18 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+use Lunar\Models\CartLine;
+
+/**
+ * The reverse of CartLineSaved — a previously saved-for-later line moved back
+ * into the purchasable cart (now counted in totals again).
+ */
+class CartLineMovedToCart
+{
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly CartLine $line,
+    ) {}
+}
@@ -0,0 +1,18 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+
+class CartLineRemoved
+{
+    /**
+     * @param  array{id: int, purchasable_type: string, purchasable_id: int, quantity: int, meta: array}  $line
+     *   Snapshot of the removed line — the row is already deleted by the time this
+     *   event dispatches, so nothing here can be a fresh CartLine model instance.
+     */
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly array $line,
+    ) {}
+}
@@ -0,0 +1,20 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+use Lunar\Models\CartLine;
+
+/**
+ * A line was moved OUT of the purchasable cart and into "saved for later" —
+ * not a removal (the row still exists), but distinct from CartLineUpdated
+ * since it's a state transition worth its own hook (e.g. abandoned-cart
+ * recovery treating a saved line very differently from a deleted one).
+ */
+class CartLineSaved
+{
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly CartLine $line,
+    ) {}
+}
@@ -0,0 +1,18 @@
+<?php
+
+namespace Modules\Core\Cart\Events;
+
+use Lunar\Models\Cart;
+use Lunar\Models\CartLine;
+
+class CartLineUpdated
+{
+    /**
+     * @param  array{quantity: int, meta: array}  $old  Snapshot before the update.
+     */
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly CartLine $line,
+        public readonly array $old,
+    ) {}
+}
@@ -0,0 +1,19 @@
+<?php
+
+namespace Modules\Core\Cart\Exceptions;
+
+use RuntimeException;
+
+/**
+ * Thrown by CartService::applyCoupon() when the given code doesn't match any
+ * currently-active, non-exhausted Discount — Lunar's own
+ * Discounts::validateCoupon() only returns a bool, it has no matching
+ * exception type of its own to reuse here.
+ */
+class InvalidCouponException extends RuntimeException
+{
+    public function __construct(public readonly string $code)
+    {
+        parent::__construct("The coupon code \"{$code}\" is not valid.");
+    }
+}
@@ -0,0 +1,120 @@
+<?php
+
+namespace Modules\Core\Cart\Filament\Resources;
+
+use Filament\Resources\Resource;
+use Filament\Tables;
+use Filament\Tables\Table;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Support\Carbon;
+use Lunar\Admin\Filament\Resources\CustomerResource;
+use Lunar\Models\Cart;
+use Modules\Core\Cart\Filament\Resources\CartResource\Pages;
+
+/**
+ * Read-only — a cart is managed entirely through the storefront (add/update/remove
+ * line, checkout), never hand-edited by staff. Scoped to carts with a known
+ * `user_id`/`customer_id` only: an anonymous guest's session cart carries no
+ * identity a staff member could act on (no name, no email, nothing to follow up
+ * with), so listing every such row would be noise, not a real admin capability —
+ * see docs/cart.md for the reasoning (Lunar itself ships no cart admin view at all
+ * to follow a precedent from).
+ */
+class CartResource extends Resource
+{
+    protected static ?string $model = Cart::class;
+
+    protected static ?string $navigationIcon = 'heroicon-o-shopping-cart';
+
+    protected static ?string $navigationGroup = 'Sales';
+
+    protected static ?string $modelLabel = 'Cart';
+
+    protected static ?string $pluralModelLabel = 'Carts';
+
+    public static function getEloquentQuery(): Builder
+    {
+        return parent::getEloquentQuery()
+            ->where(fn (Builder $query) => $query->whereNotNull('user_id')->orWhereNotNull('customer_id'));
+    }
+
+    /**
+     * Count only, not a fetch — no rows are loaded. Combines BOTH abandoned
+     * states (`active()` already covers "no order at all" and "draft order,
+     * never placed" together — see ListCarts::getTabs()'s "Abandoned Cart" /
+     * "Abandoned Checkout" tabs for where they're split apart), not "Ongoing"
+     * — the badge is meant to answer "how many carts might need following up
+     * on," not the total including ones someone is actively shopping in right
+     * now.
+     */
+    public static function getNavigationBadge(): ?string
+    {
+        return (string) static::getEloquentQuery()->active()->where('updated_at', '<=', static::abandonedCutoff())->count();
+    }
+
+    /**
+     * `Cart::scopeActive()` (not-yet-converted-to-an-order carts) mixes two very
+     * different things together: a cart someone is actively shopping in right now,
+     * and one that's genuinely been left behind. Lunar tracks no time-based
+     * staleness signal of its own — `Cart::updated_at` plus a configurable
+     * threshold (`config('core.cart.abandoned_after')`, default 1 hour) is what
+     * this resource uses to tell them apart. A cart with no recent activity is
+     * "Abandoned"; anything more recent is "Ongoing".
+     */
+    public static function abandonedCutoff(): Carbon
+    {
+        return now()->sub(config('core.cart.abandoned_after', '1 hour'));
+    }
+
+    public static function table(Table $table): Table
+    {
+        return $table
+            ->columns([
+                Tables\Columns\TextColumn::make('id')
+                    ->label('Cart')
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('customer.full_name')
+                    ->label('Customer')
+                    ->placeholder('—')
+                    ->searchable()
+                    ->url(fn (Cart $record) => $record->customer_id !== null
+                        ? CustomerResource::getUrl('view', ['record' => $record->customer_id])
+                        : null),
+                Tables\Columns\TextColumn::make('user.email')
+                    ->label('User')
+                    ->placeholder('—')
+                    ->searchable(),
+                Tables\Columns\TextColumn::make('lines_count')
+                    ->label('Lines')
+                    ->counts('lines')
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('lines_sum_quantity')
+                    ->label('Items')
+                    ->sum('lines', 'quantity')
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('currency.code')
+                    ->label('Currency'),
+                Tables\Columns\TextColumn::make('updated_at')
+                    ->label('Last activity')
+                    ->dateTime()
+                    ->sortable(),
+            ])
+            ->actions([
+                Tables\Actions\ViewAction::make(),
+            ])
+            ->defaultSort('updated_at', 'desc');
+    }
+
+    public static function getPages(): array
+    {
+        return [
+            'index' => Pages\ListCarts::route('/'),
+            'view' => Pages\ViewCart::route('/{record}'),
+        ];
+    }
+
+    public static function canCreate(): bool
+    {
+        return false;
+    }
+}
@@ -0,0 +1,55 @@
+<?php
+
+namespace Modules\Core\Cart\Filament\Resources\CartResource\Pages;
+
+use Filament\Resources\Components\Tab;
+use Filament\Resources\Pages\ListRecords;
+use Illuminate\Database\Eloquent\Builder;
+use Modules\Core\Cart\Filament\Resources\CartResource;
+
+class ListCarts extends ListRecords
+{
+    protected static string $resource = CartResource::class;
+
+    /**
+     * `Cart::completed_at` is declared/cast on the model but never actually written
+     * anywhere in Lunar core — it's dead, not a real "did this convert" signal.
+     * "Completed" instead means the cart has an order with `placed_at` set (a
+     * placed, not just drafted, order).
+     *
+     * `Cart::scopeActive()` (not yet converted to an order) actually mixes two
+     * distinct states: no order started at all, vs. a draft order exists
+     * (`placed_at IS NULL`) but was never placed — checkout was started, not
+     * finished. That's a real difference in purchase intent (a cart with a
+     * draft order is a much stronger signal than one with no order at all) and
+     * in reachability (checkout usually captures an email even for a guest),
+     * so they get separate tabs rather than one combined "no order yet"
+     * bucket — same distinction Modules\Core\Recovery\Events\CartAbandoned /
+     * Modules\Core\Recovery\Events\CheckoutAbandoned draw.
+     *
+     * "Ongoing" vs the two abandoned tabs all split on `updated_at` against
+     * `CartResource::abandonedCutoff()` — Lunar has no time-based staleness
+     * signal of its own, so recent activity is the only thing distinguishing a
+     * cart someone is shopping in right now from one genuinely left behind.
+     */
+    public function getTabs(): array
+    {
+        return [
+            'ongoing' => Tab::make('Ongoing')
+                ->modifyQueryUsing(fn (Builder $query) => $query->active()->where('updated_at', '>', CartResource::abandonedCutoff())),
+            'abandoned_cart' => Tab::make('Abandoned Cart')
+                ->modifyQueryUsing(fn (Builder $query) => $query
+                    ->whereDoesntHave('orders')
+                    ->where('updated_at', '<=', CartResource::abandonedCutoff())),
+            'abandoned_checkout' => Tab::make('Abandoned Checkout')
+                ->modifyQueryUsing(fn (Builder $query) => $query
+                    ->whereHas('orders', fn (Builder $query) => $query->whereNull('placed_at'))
+                    ->where('updated_at', '<=', CartResource::abandonedCutoff())),
+            'completed' => Tab::make('Completed')
+                ->modifyQueryUsing(fn (Builder $query) => $query->whereHas(
+                    'orders',
+                    fn (Builder $query) => $query->whereNotNull('placed_at'),
+                )),
+        ];
+    }
+}
@@ -0,0 +1,112 @@
+<?php
+
+namespace Modules\Core\Cart\Filament\Resources\CartResource\Pages;
+
+use Filament\Actions\Action;
+use Filament\Infolists\Components\RepeatableEntry;
+use Filament\Infolists\Components\Section;
+use Filament\Infolists\Components\TextEntry;
+use Filament\Infolists\Infolist;
+use Filament\Resources\Pages\ViewRecord;
+use Lunar\Admin\Filament\Resources\CustomerResource;
+use Lunar\Models\Cart;
+use Lunar\Models\CartLine;
+use Modules\Core\Cart\Filament\Resources\CartResource;
+
+class ViewCart extends ViewRecord
+{
+    protected static string $resource = CartResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Action::make('viewCustomer')
+                ->label('View Customer')
+                ->icon('heroicon-o-user')
+                ->url(fn (Cart $record) => CustomerResource::getUrl('view', ['record' => $record->customer_id]))
+                ->visible(fn (Cart $record) => $record->customer_id !== null),
+        ];
+    }
+
+    /**
+     * Cart's computed properties (subTotal/total/etc.) are plain public properties
+     * populated as a side effect of the pipeline calculate() runs — never persisted,
+     * so they don't exist on a plain Eloquent-fetched record. Calculated once here
+     * (a single view page load), not per-row in the list table, since running the
+     * full pipeline for every row of a paginated table would be expensive for no
+     * real benefit — see docs/lunar.md's Cart gotchas.
+     */
+    protected function resolveRecord(int|string $key): Cart
+    {
+        /** @var Cart $cart */
+        $cart = parent::resolveRecord($key);
+
+        return $cart->calculate();
+    }
+
+    public function infolist(Infolist $infolist): Infolist
+    {
+        return $infolist
+            ->schema([
+                Section::make('Cart')
+                    ->columns(3)
+                    ->schema([
+                        TextEntry::make('id'),
+                        TextEntry::make('customer.full_name')
+                            ->label('Customer')
+                            ->placeholder('—')
+                            ->url(fn (Cart $record) => $record->customer_id !== null
+                                ? CustomerResource::getUrl('view', ['record' => $record->customer_id])
+                                : null),
+                        TextEntry::make('user.email')
+                            ->label('User')
+                            ->placeholder('—'),
+                        TextEntry::make('currency.code')
+                            ->label('Currency'),
+                        TextEntry::make('completedOrderPlacedAt')
+                            ->label('Ordered at')
+                            ->state(fn (Cart $record) => $record->orders()->whereNotNull('placed_at')->value('placed_at'))
+                            ->dateTime()
+                            ->placeholder('Not ordered'),
+                        TextEntry::make('updated_at')
+                            ->label('Last activity')
+                            ->dateTime(),
+                    ]),
+                Section::make('Lines')
+                    ->schema([
+                        RepeatableEntry::make('lines')
+                            ->hiddenLabel()
+                            ->schema([
+                                TextEntry::make('purchasable.sku')
+                                    ->label('SKU')
+                                    ->placeholder('—'),
+                                TextEntry::make('quantity'),
+                                TextEntry::make('unitPrice')
+                                    ->label('Unit price')
+                                    ->formatStateUsing(fn (CartLine $record) => $record->unitPrice?->formatted() ?? '—'),
+                                TextEntry::make('total')
+                                    ->label('Line total')
+                                    ->formatStateUsing(fn (CartLine $record) => $record->total?->formatted() ?? '—'),
+                            ])
+                            ->columns(4),
+                    ]),
+                Section::make('Totals')
+                    ->columns(3)
+                    ->schema([
+                        TextEntry::make('subTotal')
+                            ->label('Subtotal')
+                            ->formatStateUsing(fn (Cart $record) => $record->subTotal?->formatted() ?? '—'),
+                        TextEntry::make('discountTotal')
+                            ->label('Discount')
+                            ->formatStateUsing(fn (Cart $record) => $record->discountTotal?->formatted() ?? '—'),
+                        TextEntry::make('taxTotal')
+                            ->label('Tax')
+                            ->formatStateUsing(fn (Cart $record) => $record->taxTotal?->formatted() ?? '—'),
+                        TextEntry::make('total')
+                            ->label('Total')
+                            ->formatStateUsing(fn (Cart $record) => $record->total?->formatted() ?? '—')
+                            ->weight('bold'),
+                    ]),
+            ]);
+    }
+}
@@ -0,0 +1,33 @@
+<?php
+
+namespace Modules\Core\Cart\Pipelines;
+
+use Closure;
+use Lunar\DataTypes\Price;
+use Lunar\Models\Contracts\CartLine as CartLineContract;
+
+/**
+ * Runs in config('lunar.cart.pipelines.cart_lines'), after GetUnitPrice —
+ * zeroes out unitPrice/unitPriceInclTax for any line flagged
+ * meta.saved_for_later, BEFORE Lunar's own CalculateLines pipeline step reads
+ * unitPrice to compute subTotal/total. A saved-for-later item is deliberately
+ * parked, not pending purchase, so it shouldn't inflate Cart::total — and
+ * since CalculateLines sums every CartLine unconditionally with no meta-based
+ * exclusion of its own, zeroing the price here (rather than patching subTotal
+ * after the fact) is what makes every downstream total naturally correct
+ * without a second pass.
+ */
+class ZeroSavedForLaterPrice
+{
+    public function handle(CartLineContract $cartLine, Closure $next): mixed
+    {
+        if ($cartLine->meta['saved_for_later'] ?? false) {
+            $currency = $cartLine->cart->currency;
+
+            $cartLine->unitPrice = new Price(0, $currency, 1);
+            $cartLine->unitPriceInclTax = new Price(0, $currency, 1);
+        }
+
+        return $next($cartLine);
+    }
+}
@@ -0,0 +1,250 @@
+<?php
+
+namespace Modules\Core\Cart\Services;
+
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Event;
+use Lunar\Actions\Carts\GetExistingCartLine;
+use Lunar\Base\Purchasable;
+use Lunar\Facades\CartSession;
+use Lunar\Facades\Discounts;
+use Lunar\Models\Cart;
+use Lunar\Models\CartLine;
+use Modules\Core\Cart\Events\CartCleared;
+use Modules\Core\Cart\Events\CartCouponApplied;
+use Modules\Core\Cart\Events\CartCouponRemoved;
+use Modules\Core\Cart\Events\CartLineAdded;
+use Modules\Core\Cart\Events\CartLineMovedToCart;
+use Modules\Core\Cart\Events\CartLineRemoved;
+use Modules\Core\Cart\Events\CartLineSaved;
+use Modules\Core\Cart\Events\CartLineUpdated;
+use Modules\Core\Cart\Exceptions\InvalidCouponException;
+
+/**
+ * Storefront-facing cart operations, mirroring Modules\Core\Catalog\Services\
+ * ProductService/CollectionService's shape — one boboko-owned API a storefront
+ * calls, so Lunar's own CartSession/Cart stay an implementation detail rather
+ * than something a consuming app depends on directly.
+ *
+ * Every mutating method dispatches a matching domain event
+ * (Modules\Core\Cart\Events\*) after the underlying Lunar operation completes —
+ * Lunar itself dispatches zero cart events (see docs/lunar.md's Cart gotchas),
+ * so without this, nothing in a consuming app has anything to react to when a
+ * cart actually changes (reindexing, notifications, analytics, etc.).
+ *
+ * All mutating methods return the recalculated Cart — matching Lunar's own
+ * Cart::add()/updateLine()/etc., which already return $this after
+ * refresh()->recalculate() — so a caller gets fresh totals in the same call,
+ * no second fetch needed.
+ */
+class CartService
+{
+    /**
+     * The current session's cart, or null if none exists yet. Does NOT
+     * auto-create one — see currentOrCreate() for that.
+     */
+    public function current(): ?Cart
+    {
+        return CartSession::current();
+    }
+
+    /**
+     * The current session's cart, creating one if none exists yet — the right
+     * call for "add to cart" style flows where a cart must exist by the time
+     * the method returns.
+     */
+    public function currentOrCreate(): Cart
+    {
+        return CartSession::manager();
+    }
+
+    public function addLine(Purchasable $purchasable, int $quantity = 1, array $meta = []): Cart
+    {
+        $cart = $this->currentOrCreate()->add($purchasable, $quantity, $meta);
+
+        $line = app(config('lunar.cart.actions.get_existing_cart_line', GetExistingCartLine::class))
+            ->execute($cart, $purchasable, $meta);
+
+        if ($line !== null) {
+            Event::dispatch(new CartLineAdded($cart, $line));
+        }
+
+        return $cart;
+    }
+
+    public function updateLine(int $cartLineId, int $quantity, ?array $meta = null): Cart
+    {
+        $before = CartLine::findOrFail($cartLineId);
+        $old = ['quantity' => $before->quantity, 'meta' => $before->meta->toArray()];
+
+        $cart = $this->currentOrCreate()->updateLine($cartLineId, $quantity, $meta);
+
+        $line = $cart->lines->firstWhere('id', $cartLineId);
+
+        if ($line !== null) {
+            Event::dispatch(new CartLineUpdated($cart, $line, $old));
+        }
+
+        return $cart;
+    }
+
+    public function removeLine(int $cartLineId): Cart
+    {
+        $line = CartLine::findOrFail($cartLineId);
+        $snapshot = $this->snapshotLine($line);
+
+        $cart = $this->currentOrCreate()->remove($cartLineId);
+
+        Event::dispatch(new CartLineRemoved($cart, $snapshot));
+
+        return $cart;
+    }
+
+    public function clear(): Cart
+    {
+        $cart = $this->currentOrCreate();
+        $snapshots = $cart->lines->map($this->snapshotLine(...))->all();
+
+        $cart = $cart->clear();
+
+        Event::dispatch(new CartCleared($cart, $snapshots));
+
+        return $cart;
+    }
+
+    /**
+     * Sets the cart's coupon code, which the ApplyDiscounts pipeline step picks
+     * up on the next calculate() — there's no dedicated Lunar action for this
+     * (unlike add/update/remove, coupon_code is a plain cast attribute), so
+     * this is the closest thing to one for a consuming app to call.
+     *
+     * Validated via Discounts::validateCoupon() (does a matching, currently
+     * active, non-exhausted Discount exist?) before it's set — CouponString's
+     * cast only normalizes casing, it doesn't validate anything, so setting
+     * coupon_code directly would silently accept a bogus code and just not
+     * discount anything once calculated.
+     *
+     * @throws InvalidCouponException if the code doesn't match a valid, active,
+     *   non-exhausted Discount
+     */
+    public function applyCoupon(string $code): Cart
+    {
+        if (! Discounts::validateCoupon($code)) {
+            throw new InvalidCouponException($code);
+        }
+
+        $cart = $this->currentOrCreate();
+        $cart->coupon_code = $code;
+        $cart->save();
+        $cart = $cart->recalculate();
+
+        Event::dispatch(new CartCouponApplied($cart, $cart->coupon_code));
+
+        return $cart;
+    }
+
+    public function removeCoupon(): Cart
+    {
+        $cart = $this->currentOrCreate();
+        $code = $cart->coupon_code;
+
+        if ($code === null) {
+            return $cart;
+        }
+
+        $cart->coupon_code = null;
+        $cart->save();
+        $cart = $cart->recalculate();
+
+        Event::dispatch(new CartCouponRemoved($cart, $code));
+
+        return $cart;
+    }
+
+    /**
+     * Lines currently counted toward the cart's totals — everything except
+     * ones flagged meta.saved_for_later (see savedLines()). This is the set a
+     * cart page's main list / checkout would iterate, since a saved line
+     * isn't pending purchase.
+     *
+     * @return Collection<int, CartLine>
+     */
+    public function activeLines(?Cart $cart = null): Collection
+    {
+        $cart ??= $this->currentOrCreate();
+
+        return $cart->lines->reject(fn (CartLine $line) => $line->meta['saved_for_later'] ?? false)->values();
+    }
+
+    /**
+     * Lines a shopper has deliberately parked rather than deleted — excluded
+     * from Cart totals (see Modules\Core\Cart\Pipelines\ZeroSavedForLaterPrice)
+     * and from activeLines(). A cart page's "Saved for later" section iterates
+     * this set.
+     *
+     * @return Collection<int, CartLine>
+     */
+    public function savedLines(?Cart $cart = null): Collection
+    {
+        $cart ??= $this->currentOrCreate();
+
+        return $cart->lines->filter(fn (CartLine $line) => $line->meta['saved_for_later'] ?? false)->values();
+    }
+
+    /**
+     * Moves a line OUT of the purchasable cart without deleting it — it stays
+     * on the cart (still visible, still re-addable) but is excluded from
+     * totals via meta.saved_for_later, zeroed by ZeroSavedForLaterPrice before
+     * Lunar's own CalculateLines sums the cart (which has no meta-based
+     * exclusion of its own).
+     */
+    public function saveForLater(int $cartLineId): Cart
+    {
+        $line = CartLine::findOrFail($cartLineId);
+        $meta = [...$line->meta->toArray(), 'saved_for_later' => true];
+
+        $cart = $this->currentOrCreate()->updateLine($cartLineId, $line->quantity, $meta);
+
+        $line = $cart->lines->firstWhere('id', $cartLineId);
+
+        if ($line !== null) {
+            Event::dispatch(new CartLineSaved($cart, $line));
+        }
+
+        return $cart;
+    }
+
+    /**
+     * The reverse of saveForLater() — moves a line back into the purchasable
+     * cart, counted in totals again.
+     */
+    public function moveToCart(int $cartLineId): Cart
+    {
+        $line = CartLine::findOrFail($cartLineId);
+        $meta = [...$line->meta->toArray(), 'saved_for_later' => false];
+
+        $cart = $this->currentOrCreate()->updateLine($cartLineId, $line->quantity, $meta);
+
+        $line = $cart->lines->firstWhere('id', $cartLineId);
+
+        if ($line !== null) {
+            Event::dispatch(new CartLineMovedToCart($cart, $line));
+        }
+
+        return $cart;
+    }
+
+    /**
+     * @return array{id: int, purchasable_type: string, purchasable_id: int, quantity: int, meta: array}
+     */
+    private function snapshotLine(CartLine $line): array
+    {
+        return [
+            'id' => $line->id,
+            'purchasable_type' => $line->purchasable_type,
+            'purchasable_id' => $line->purchasable_id,
+            'quantity' => $line->quantity,
+            'meta' => $line->meta->toArray(),
+        ];
+    }
+}
@@ -0,0 +1,34 @@
+<?php
+
+namespace Modules\Core\Catalog\Contracts;
+
+use Filament\Forms\Components\Component;
+
+/**
+ * A Product Option Type describes how a category of Lunar `ProductOption` (e.g.
+ * "Color", "Size", "Material") behaves — namely, what structured data its values
+ * carry in their free-form `meta` jsonb column, and how an admin edits that data.
+ *
+ * `ProductOption`/`ProductOptionValue` themselves stay exactly as Lunar defines
+ * them — this is not a new model. `ProductOptionTypeManager` maps a
+ * `ProductOption::handle` to the type describing it (via `config('core.product_option_types')`,
+ * typed explicitly by the admin), so adding a new kind of option is a single new
+ * class, not scattered per-option special-casing across the admin UI or storefront.
+ */
+interface ProductOptionTypeInterface
+{
+    /**
+     * Matches the ProductOption::handle this type describes (e.g. 'color', 'size').
+     */
+    public static function getKey(): string;
+
+    /**
+     * Filament form components for editing a ProductOptionValue's `meta` under this
+     * option type — e.g. Color returns a color picker for `meta.hex`, Size returns a
+     * numeric input for `meta.sort_value`. Field names should be dot-notation under
+     * `meta` (e.g. `meta.hex`), matching where ValuesRelationManagerExtension saves them.
+     *
+     * @return array<Component>
+     */
+    public function getMetaForm(): array;
+}
@@ -0,0 +1,24 @@
+<?php
+
+namespace Modules\Core\Catalog\DTOs;
+
+/**
+ * Filter input for CollectionService::list(). All fields are optional — omitted
+ * filters are simply not added to the Meilisearch query. Values are matched
+ * against Modules\Core\Catalog\Services\CollectionIndexer's document fields, so
+ * filtering only works on stores where that indexer is registered and the index
+ * has been re-synced (see docs/product-listing.md).
+ */
+class CollectionFilters
+{
+    /**
+     * @param $parentId children of this specific parent collection.
+     * @param $rootOnly top-level collections only (`parent_id IS NULL`) — mutually
+     *   exclusive with $parentId; if both are set, $parentId wins.
+     */
+    public function __construct(
+        public readonly ?int $parentId = null,
+        public readonly ?int $groupId = null,
+        public readonly bool $rootOnly = false,
+    ) {}
+}
@@ -0,0 +1,28 @@
+<?php
+
+namespace Modules\Core\Catalog\DTOs;
+
+/**
+ * Filter input for ProductService::list(). All fields are optional — omitted
+ * filters are simply not added to the Meilisearch query. Values are matched
+ * against Modules\Core\Catalog\Services\ProductIndexer's document fields, so
+ * filtering only works on stores where that indexer is registered and the index
+ * has been re-synced (see docs/product-listing.md).
+ */
+class ProductFilters
+{
+    /**
+     * @param $collectionId matches a product in this collection OR any of its
+     *   descendant collections (filtered against ProductIndexer's `collection_ids`,
+     *   not a direct-assignment-only match) — the right semantics for "products on
+     *   this category page", since products are typically attached only to leaf
+     *   collections.
+     */
+    public function __construct(
+        public readonly ?int $collectionId = null,
+        public readonly ?string $brand = null,
+        public readonly ?float $minPrice = null,
+        public readonly ?float $maxPrice = null,
+        public readonly bool $inStockOnly = false,
+    ) {}
+}
@@ -0,0 +1,24 @@
+<?php
+
+namespace Modules\Core\Catalog\Enums;
+
+/**
+ * Sort options for CollectionService::list(), each mapped to a Meilisearch `sort`
+ * clause against a field indexed as sortable by Modules\Core\Catalog\Services\
+ * CollectionIndexer (see its getSortableFields()).
+ */
+enum CollectionSort: string
+{
+    case Position = 'position';
+    case Name = 'name';
+    case Newest = 'newest';
+
+    public function toMeilisearchSort(): string
+    {
+        return match ($this) {
+            self::Position => '_lft:asc',
+            self::Name => 'name:asc',
+            self::Newest => 'created_at:desc',
+        };
+    }
+}
@@ -0,0 +1,26 @@
+<?php
+
+namespace Modules\Core\Catalog\Enums;
+
+/**
+ * Sort options for ProductService::list(), each mapped to a Meilisearch `sort`
+ * clause against a field indexed as sortable by Modules\Core\Catalog\Services\
+ * ProductIndexer (see its getSortableFields()). Adding a case here requires the
+ * matching field to also be sortable in the index, re-synced via
+ * `php artisan lunar:meilisearch:setup`.
+ */
+enum ProductSort: string
+{
+    case PriceAsc = 'price_asc';
+    case PriceDesc = 'price_desc';
+    case Newest = 'newest';
+
+    public function toMeilisearchSort(): string
+    {
+        return match ($this) {
+            self::PriceAsc => 'price:asc',
+            self::PriceDesc => 'price:desc',
+            self::Newest => 'created_at:desc',
+        };
+    }
+}
@@ -0,0 +1,39 @@
+<?php
+
+namespace Modules\Core\Catalog\Filament\Extensions;
+
+use Filament\Forms\Components\Select;
+use Filament\Forms\Form;
+use Illuminate\Support\Str;
+use Lunar\Admin\Support\Extending\ResourceExtension;
+use Modules\Core\Catalog\Services\ProductOptionTypeManager;
+
+/**
+ * Adds an "Option Type" dropdown to Lunar's own ProductOptionResource form, letting
+ * an admin pick which registered `ProductOptionTypeInterface` (if any) describes this
+ * option's values — e.g. "Color" — independent of the option's own `handle`. The
+ * selection is saved to `ProductOption::meta['option_type']`.
+ */
+class ProductOptionResourceExtension extends ResourceExtension
+{
+    public function extendForm(Form $form): Form
+    {
+        $options = collect(ProductOptionTypeManager::get()->all())
+            ->keys()
+            ->mapWithKeys(fn (string $key) => [$key => Str::headline($key)])
+            ->all();
+
+        if ($options === []) {
+            return $form;
+        }
+
+        return $form->schema([
+            ...$form->getComponents(),
+            Select::make('meta.option_type')
+                ->label('Option Type')
+                ->options($options)
+                ->helperText('Controls which meta fields appear when editing this option\'s values.')
+                ->native(false),
+        ]);
+    }
+}
@@ -0,0 +1,34 @@
+<?php
+
+namespace Modules\Core\Catalog\Filament\Extensions;
+
+use Filament\Forms\Form;
+use Lunar\Admin\Support\Extending\RelationManagerExtension;
+use Lunar\Models\ProductOption;
+use Modules\Core\Catalog\Services\ProductOptionTypeManager;
+
+/**
+ * Appends the owning `ProductOption`'s registered `ProductOptionTypeInterface` meta
+ * form (if any) to Lunar's own ValuesRelationManager form, so e.g. a "color" option
+ * gets a hex-color picker for each value alongside the stock name field — without
+ * forking Lunar's relation manager.
+ */
+class ValuesRelationManagerExtension extends RelationManagerExtension
+{
+    public function extendForm(Form $form): Form
+    {
+        /** @var ProductOption $option */
+        $option = $this->caller->getOwnerRecord();
+
+        $type = ProductOptionTypeManager::get()->resolve($option->meta['option_type'] ?? null);
+
+        if ($type === null) {
+            return $form;
+        }
+
+        return $form->schema([
+            ...$form->getComponents(),
+            ...$type->getMetaForm(),
+        ]);
+    }
+}
@@ -0,0 +1,68 @@
+<?php
+
+namespace Modules\Core\Catalog\Observers;
+
+use Illuminate\Support\Facades\DB;
+use Lunar\Models\Product;
+use Lunar\Models\ProductOption;
+use Lunar\Models\ProductOptionValue;
+use Lunar\Models\ProductVariant;
+
+/**
+ * Keeps every product using a ProductOption/ProductOptionValue in sync with
+ * Meilisearch. ProductIndexer::mapVariant() embeds each option value's `meta`
+ * (e.g. a color's hex) directly into the product's indexed document — but saving
+ * the option or one of its values never fires the *product's* own save/update
+ * events, so without this, a changed option_type or a changed hex would only
+ * reach the index on that product's next unrelated reindex.
+ */
+class ProductOptionReindexObserver
+{
+    public function optionSaved(ProductOption $option): void
+    {
+        $this->reindexProductsForOption($option->id);
+    }
+
+    public function optionDeleted(ProductOption $option): void
+    {
+        $this->reindexProductsForOption($option->id);
+    }
+
+    public function valueSaved(ProductOptionValue $value): void
+    {
+        $this->reindexProductsForValues([$value->id]);
+    }
+
+    public function valueDeleted(ProductOptionValue $value): void
+    {
+        $this->reindexProductsForValues([$value->id]);
+    }
+
+    private function reindexProductsForOption(int $optionId): void
+    {
+        $valueIds = ProductOptionValue::where('product_option_id', $optionId)->pluck('id');
+
+        $this->reindexProductsForValues($valueIds->all());
+    }
+
+    private function reindexProductsForValues(array $valueIds): void
+    {
+        if ($valueIds === []) {
+            return;
+        }
+
+        $prefix = config('lunar.database.table_prefix');
+
+        $variantIds = DB::table("{$prefix}product_option_value_product_variant")
+            ->whereIn('value_id', $valueIds)
+            ->pluck('variant_id');
+
+        if ($variantIds->isEmpty()) {
+            return;
+        }
+
+        $productIds = ProductVariant::whereIn('id', $variantIds)->pluck('product_id')->unique();
+
+        Product::whereIn('id', $productIds)->get()->each->searchable();
+    }
+}
@@ -0,0 +1,29 @@
+<?php
+
+namespace Modules\Core\Catalog\OptionTypes;
+
+use Filament\Forms\Components\ColorPicker;
+use Modules\Core\Catalog\Contracts\ProductOptionTypeInterface;
+
+/**
+ * Describes a 'color' ProductOption's values as carrying a hex code in
+ * `meta.hex`, editable via a Filament color picker. Registered automatically by
+ * `Modules\Core\Providers\CatalogServiceProvider` — a shop's admin still has to
+ * pick "Color" from the Option Type dropdown per-ProductOption for it to apply.
+ */
+class ColorOptionType implements ProductOptionTypeInterface
+{
+    public static function getKey(): string
+    {
+        return 'color';
+    }
+
+    public function getMetaForm(): array
+    {
+        return [
+            ColorPicker::make('meta.hex')
+                ->label('Color')
+                ->required(),
+        ];
+    }
+}
@@ -1,20 +0,0 @@
-<?php
-
-namespace Modules\Core\Catalog;
-
-/**
- * Filter input for ProductService::list(). All fields are optional — omitted
- * filters are simply not added to the Meilisearch query. Values are matched
- * against Modules\Core\Search\ProductIndexer's document fields, so filtering
- * only works on stores where that indexer is registered and the index has
- * been re-synced (see docs/product-listing.md).
- */
-class ProductFilters
-{
-    public function __construct(
-        public readonly ?int $collectionId = null,
-        public readonly ?string $brand = null,
-        public readonly ?float $minPrice = null,
-        public readonly ?float $maxPrice = null,
-    ) {}
-}
@@ -1,126 +0,0 @@
-<?php
-
-namespace Modules\Core\Catalog;
-
-use Illuminate\Contracts\Pagination\LengthAwarePaginator;
-use Illuminate\Support\Collection;
-use Illuminate\Support\Facades\App;
-use Lunar\Models\Product;
-use Modules\Core\Localization\LocaleMiddleware;
-
-/**
- * Storefront product listing/filtering AND single-product lookup, all reading directly
- * from the Meilisearch index (Modules\Core\Search\ProductIndexer) - one data source, no
- * ->get() model hydration anywhere in this service. Callers get plain arrays of the
- * indexed document, not Eloquent models.
- *
- * Full-text query search lives separately in Modules\Core\Search\ProductSearchService;
- * this service is for browsing/filtering without a search term.
- */
-class ProductService
-{
-    /**
-     * @return array{data: array<int, array>, meta: array}
-     */
-    public function list(?ProductFilters $filters = null, int $perPage = 24, int $page = 1): array
-    {
-        $paginator = Product::search('')
-            ->options([
-                'filter' => $this->buildFilter($filters),
-            ])
-            ->paginateRaw(perPage: $perPage, page: $page);
-
-        return [
-            'data' => collect($this->hitsFrom($paginator))
-                ->map(fn (array $product) => $this->withLocalizedFields($product))
-                ->all(),
-            'meta' => [
-                'total' => $paginator->total(),
-                'per_page' => $paginator->perPage(),
-                'current_page' => $paginator->currentPage(),
-                'last_page' => $paginator->lastPage(),
-            ],
-        ];
-    }
-
-    /**
-     * Look up a single product by its URL slug (any locale - slugs are indexed across
-     * all languages, see Modules\Core\Search\ProductIndexer). Returns the full indexed
-     * product document, or null if no product has that slug.
-     */
-    public function getBySlug(string $slug): ?array
-    {
-        return $this->findOneWhere('slugs = "'.addcslashes($slug, '"\\').'"');
-    }
-
-    /**
-     * Look up a single product by its primary key. Returns the full indexed product
-     * document, or null if no product has that id.
-     */
-    public function getById(int $id): ?array
-    {
-        return $this->findOneWhere("id = \"{$id}\"");
-    }
-
-    private function findOneWhere(string $filter): ?array
-    {
-        $paginator = Product::search('')
-            ->options(['filter' => $filter])
-            ->paginateRaw(perPage: 1, page: 1);
-
-        $product = $this->hitsFrom($paginator)[0] ?? null;
-
-        return $product !== null ? $this->withLocalizedFields($product) : null;
-    }
-
-    /**
-     * Resolves the current-locale `name`/`description` from the indexer's
-     * per-locale `name_{locale}`/`description_{locale}` fields, falling back to
-     * the store's default language (Language::default, see
-     * LocaleMiddleware::defaultLocale()) when the current locale has no
-     * translation - e.g. a product with no English copy yet still shows its
-     * Greek name/description on /en/ rather than rendering blank.
-     *
-     * Deliberately not config('app.locale') - App::setLocale() overwrites that
-     * config value on every request, so by request time it's just whatever the
-     * current locale already is, not a stable fallback.
-     */
-    private function withLocalizedFields(array $product): array
-    {
-        $locale = App::getLocale();
-        $fallbackLocale = LocaleMiddleware::defaultLocale();
-
-        $product['name'] = $product['name_'.$locale] ?? $product['name_'.$fallbackLocale] ?? null;
-        $product['description'] = $product['description_'.$locale] ?? $product['description_'.$fallbackLocale] ?? null;
-
-        return $product;
-    }
-
-    /**
-     * For the Meilisearch driver, Scout's paginateRaw() puts the whole raw response
-     * (hits, query, processingTimeMs, ...) in items(), not a plain list of hits - the
-     * actual documents are under the 'hits' key.
-     */
-    private function hitsFrom(LengthAwarePaginator $paginator): array
-    {
-        $rawResponse = $paginator->items();
-
-        return collect($rawResponse['hits'] ?? [])->values()->all();
-    }
-
-    private function buildFilter(?ProductFilters $filters): ?string
-    {
-        if ($filters === null) {
-            return null;
-        }
-
-        $clauses = Collection::make([
-            $filters->collectionId !== null ? "collections = \"{$filters->collectionId}\"" : null,
-            $filters->brand !== null ? 'brand = "'.addcslashes($filters->brand, '"\\').'"' : null,
-            $filters->minPrice !== null ? "price >= {$filters->minPrice}" : null,
-            $filters->maxPrice !== null ? "price <= {$filters->maxPrice}" : null,
-        ])->filter();
-
-        return $clauses->isEmpty() ? null : $clauses->join(' AND ');
-    }
-}
@@ -0,0 +1,91 @@
+<?php
+
+namespace Modules\Core\Catalog\Services;
+
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+use Lunar\Models\Collection;
+use Lunar\Models\Product;
+use Lunar\Search\CollectionIndexer as BaseCollectionIndexer;
+
+/**
+ * Extends Lunar's own indexer so Modules\Core\Catalog\Services\CollectionService can
+ * serve category browsing/nav AND single-collection lookups from Meilisearch alone,
+ * the same reasoning as Modules\Core\Catalog\Services\ProductIndexer. Lunar's base
+ * indexer only carries `id`/`name`/`created_at` — nowhere near enough for a storefront
+ * category page or a nav tree. Adds:
+ *   - parent_id, _lft, _rgt (filterable/sortable) — the nested-set tree position, so
+ *     CollectionService can resolve "children of X" or build a full tree without a
+ *     database read
+ *   - collection_group_id (filterable) — mirrors Collection::scopeInGroup()
+ *   - slugs (filterable) — every locale's Url::slug, so getBySlug() resolves from the
+ *     index directly, no database read
+ *   - thumbnail (display) — the collection's thumbnail image URL
+ *   - ancestors (display) — [{id, name}, ...] ordered root-first, so a breadcrumb can
+ *     render directly from a single indexed document with zero extra queries
+ *   - product_count (display) — how many products are in this collection or any of
+ *     its descendants, read from the *product* Meilisearch index at collection-index
+ *     time (via `collection_ids`, see Modules\Core\Catalog\Services\ProductIndexer) —
+ *     matches what ProductService::list(ProductFilters(collectionId: ...)) would
+ *     return, not just direct assignment. Reflects the product index's state as of
+ *     the last collection reindex, so re-run `lunar:search:index --refresh` after a
+ *     product reindex if this needs to be current.
+ *
+ * New fields aren't filterable/sortable in Meilisearch until `php artisan
+ * lunar:meilisearch:setup` re-syncs index settings, and existing documents need
+ * `lunar:search:index --refresh` to pick up the new shape.
+ */
+class CollectionIndexer extends BaseCollectionIndexer
+{
+    public function getFilterableFields(): array
+    {
+        return [
+            ...parent::getFilterableFields(),
+            'id',
+            'parent_id',
+            '_lft',
+            'collection_group_id',
+            'slugs',
+        ];
+    }
+
+    public function getSortableFields(): array
+    {
+        return [
+            ...parent::getSortableFields(),
+            '_lft',
+        ];
+    }
+
+    public function makeAllSearchableUsing(Builder $query): Builder
+    {
+        return parent::makeAllSearchableUsing($query)->with(['urls', 'media', 'ancestors']);
+    }
+
+    public function toSearchableArray(Model $model): array
+    {
+        /** @var Collection $model */
+        $data = parent::toSearchableArray($model);
+
+        $data['parent_id'] = $model->parent_id;
+        $data['_lft'] = $model->_lft;
+        $data['_rgt'] = $model->_rgt;
+        $data['collection_group_id'] = $model->collection_group_id;
+        $data['slugs'] = $model->urls->pluck('slug')->unique()->values()->all();
+        $data['thumbnail'] = $model->getThumbnailImage() ?: null;
+        $data['ancestors'] = $model->ancestors
+            ->sortBy('_lft')
+            ->map(fn ($ancestor) => [
+                'id' => $ancestor->id,
+                'name' => $ancestor->translateAttribute('name'),
+            ])
+            ->values()
+            ->all();
+        $data['product_count'] = Product::search('')
+            ->options(['filter' => "collection_ids = \"{$model->id}\""])
+            ->paginateRaw(perPage: 1, page: 1)
+            ->total();
+
+        return $data;
+    }
+}
@@ -0,0 +1,147 @@
+<?php
+
+namespace Modules\Core\Catalog\Services;
+
+use Illuminate\Contracts\Pagination\LengthAwarePaginator as LengthAwarePaginatorContract;
+use Illuminate\Pagination\LengthAwarePaginator;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\App;
+use Lunar\Base\AttributeManifest;
+use Lunar\FieldTypes\TranslatedText;
+use Lunar\Models\Collection as CollectionModel;
+use Modules\Core\Catalog\DTOs\CollectionFilters;
+use Modules\Core\Catalog\Enums\CollectionSort;
+use Modules\Core\Localization\Services\LanguageCache;
+
+/**
+ * Category browsing (tree/nav) AND single-collection lookup, all reading directly
+ * from the Meilisearch index (Modules\Core\Catalog\Services\CollectionIndexer) — same
+ * shape and reasoning as Modules\Core\Catalog\Services\ProductService. Callers get
+ * plain arrays of the indexed document, not Eloquent models.
+ */
+class CollectionService
+{
+    public function __construct(
+        private readonly LanguageCache $languages,
+        private readonly AttributeManifest $attributes,
+    ) {}
+
+    /**
+     * Returns a real LengthAwarePaginator (not Scout's own paginateRaw() result — see
+     * ProductService's "Meilisearch driver quirk" note) so a controller/view gets
+     * normal pagination behaviour without ever touching the raw Meilisearch response.
+     */
+    public function list(?CollectionFilters $filters = null, int $perPage = 24, int $page = 1, ?CollectionSort $sort = null): LengthAwarePaginator
+    {
+        $options = ['filter' => $this->buildFilter($filters)];
+
+        if ($sort !== null) {
+            $options['sort'] = [$sort->toMeilisearchSort()];
+        }
+
+        $paginator = CollectionModel::search('')
+            ->options($options)
+            ->paginateRaw(perPage: $perPage, page: $page);
+
+        $data = collect($this->hitsFrom($paginator))
+            ->map(fn (array $collection) => $this->withLocalizedFields($collection))
+            ->all();
+
+        return new LengthAwarePaginator(
+            items: $data,
+            total: $paginator->total(),
+            perPage: $paginator->perPage(),
+            currentPage: $paginator->currentPage(),
+            options: ['path' => LengthAwarePaginator::resolveCurrentPath()],
+        );
+    }
+
+    /**
+     * Look up a single collection by its URL slug (any locale). Returns the full
+     * indexed collection document, or null if no collection has that slug.
+     */
+    public function getBySlug(string $slug): ?array
+    {
+        return $this->findOneWhere('slugs = "'.addcslashes($slug, '"\\').'"');
+    }
+
+    /**
+     * Look up a single collection by its primary key. Returns the full indexed
+     * collection document, or null if no collection has that id.
+     */
+    public function getById(int $id): ?array
+    {
+        return $this->findOneWhere("id = \"{$id}\"");
+    }
+
+    private function findOneWhere(string $filter): ?array
+    {
+        $paginator = CollectionModel::search('')
+            ->options(['filter' => $filter])
+            ->paginateRaw(perPage: 1, page: 1);
+
+        $collection = $this->hitsFrom($paginator)[0] ?? null;
+
+        return $collection !== null ? $this->withLocalizedFields($collection) : null;
+    }
+
+    /**
+     * Resolves every translated Collection attribute's current-locale value — same
+     * logic as ProductService::withLocalizedFields(), see there for the full
+     * reasoning (AttributeManifest-driven, store-default-locale fallback, raw
+     * per-locale keys stripped after resolving).
+     */
+    private function withLocalizedFields(array $collection): array
+    {
+        $locale = App::getLocale();
+        $fallbackLocale = $this->languages->defaultLocale();
+        $availableLocales = $this->languages->availableLocales();
+
+        foreach ($this->translatedAttributeHandles() as $handle) {
+            $collection[$handle] = $collection[$handle.'_'.$locale] ?? $collection[$handle.'_'.$fallbackLocale] ?? null;
+
+            foreach ($availableLocales as $availableLocale) {
+                unset($collection[$handle.'_'.$availableLocale]);
+            }
+        }
+
+        return $collection;
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function translatedAttributeHandles(): array
+    {
+        return $this->attributes->getSearchableAttributes((new CollectionModel)->getMorphClass())
+            ->filter(fn ($attribute) => $attribute->type === TranslatedText::class)
+            ->pluck('handle')
+            ->all();
+    }
+
+    /**
+     * For the Meilisearch driver, Scout's paginateRaw() puts the whole raw response
+     * in items(), not a plain list of hits — see ProductService's identical note.
+     */
+    private function hitsFrom(LengthAwarePaginatorContract $paginator): array
+    {
+        $rawResponse = $paginator->items();
+
+        return collect($rawResponse['hits'] ?? [])->values()->all();
+    }
+
+    private function buildFilter(?CollectionFilters $filters): ?string
+    {
+        if ($filters === null) {
+            return null;
+        }
+
+        $clauses = Collection::make([
+            $filters->parentId !== null ? "parent_id = \"{$filters->parentId}\""
+                : ($filters->rootOnly ? 'parent_id IS NULL' : null),
+            $filters->groupId !== null ? "collection_group_id = \"{$filters->groupId}\"" : null,
+        ])->filter();
+
+        return $clauses->isEmpty() ? null : $clauses->join(' AND ');
+    }
+}
@@ -1,6 +1,6 @@
 <?php

-namespace Modules\Core\Search;
+namespace Modules\Core\Catalog\Services;

 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
@@ -13,10 +13,17 @@ use Modules\Core\Review\Models\ProductReview;
 use Spatie\MediaLibrary\MediaCollections\Models\Media;

 /**
- * Extends Lunar's own indexer so Modules\Core\Catalog\ProductService can serve both
- * listing/filtering AND single-product lookups from Meilisearch alone — one data
- * source, no separate database read path for a product detail page. Adds:
- *   - collections (ids, filterable) and collection_names (display)
+ * Extends Lunar's own indexer so Modules\Core\Catalog\Services\ProductService can
+ * serve both listing/filtering AND single-product lookups from Meilisearch alone —
+ * one data source, no separate database read path for a product detail page. Adds:
+ *   - collections: [{id, name}, ...] — directly assigned collections only, for
+ *     display (breadcrumbs, "also in"). Not filterable — see collection_ids below.
+ *   - collection_ids (filterable): flat array of every directly-assigned collection's
+ *     id UNIONED with all of its ancestors' ids. Products are typically attached only
+ *     to leaf collections in a Shopify-imported tree, so a plain `collections.id`
+ *     filter would never match a parent/root category page — ProductService::list()
+ *     filters `collectionId` against this field instead, so "products in category X"
+ *     also picks up every product attached only to one of X's subcategories.
 *   - slugs (every locale's Url::slug for the product, filterable) — lets
 *     ProductService::getBySlug() resolve a product from the index directly, with
 *     no database read at all
@@ -24,9 +31,18 @@ use Spatie\MediaLibrary\MediaCollections\Models\Media;
 *   - variants: sku, stock, purchasable, option values, prices, media
 *   - the full media gallery (not just the single thumbnail Lunar's base indexer sends)
 *   - tags
- *   - reviews: public-safe fields only (see mapReview() — reviewer_email is deliberately
- *     excluded, it's PII with no storefront use), including staff replies, plus an
- *     average rating
+ *   - reviews: {items: [...], count, average_rating} — items are public-safe fields
+ *     only (see mapReview() — reviewer_email is deliberately excluded, it's PII with
+ *     no storefront use), including staff replies
+ *   - channel_ids (filterable) — Lunar's base indexer only indexes "status" as
+ *     filterable, not channel assignment, so search results can't otherwise be
+ *     scoped to products actually assigned+enabled on the current sales channel
+ *   - in_stock (filterable) — true if ANY variant can currently be purchased at
+ *     quantity 1, via ProductVariant::canBeFulfilledAtQuantity() (Lunar's own
+ *     purchasability rule: `purchasable === 'always'` is always true regardless of
+ *     stock, `in_stock` checks stock alone, anything else checks stock+backorder).
+ *     Reflects stock as of the last reindex only — nothing currently reindexes a
+ *     product when an order decrements its stock (see docs/product-listing.md).
 *
 * A review is created/edited independently of its product (Modules\Core\Providers\
 * ReviewServiceProvider re-indexes the product on review create/update/delete), so
@@ -46,9 +62,19 @@ class ProductIndexer extends BaseProductIndexer
            ...parent::getFilterableFields(),
            'id',
            'brand',
-            'collections',
+            'collection_ids',
            'price',
            'slugs',
+            'channel_ids',
+            'in_stock',
+        ];
+    }
+
+    public function getSortableFields(): array
+    {
+        return [
+            ...parent::getSortableFields(),
+            'price',
        ];
    }

@@ -56,6 +82,7 @@ class ProductIndexer extends BaseProductIndexer
    {
        return parent::makeAllSearchableUsing($query)->with([
            'collections',
+            'collections.ancestors',
            'media',
            'tags',
            'urls',
@@ -73,16 +100,32 @@ class ProductIndexer extends BaseProductIndexer
        $currency = Currency::getDefault();
        $reviews = ProductReview::where('product_id', $model->id)->with('media')->get();

-        $data['collections'] = $model->collections->pluck('id')->map(fn ($id) => (string) $id)->all();
-        $data['collection_names'] = $model->collections->map(fn ($collection) => $collection->translateAttribute('name'))->all();
+        $data['collections'] = $model->collections->map(fn ($collection) => [
+            'id' => $collection->id,
+            'name' => $collection->translateAttribute('name'),
+        ])->all();
+        $data['collection_ids'] = $model->collections
+            ->flatMap(fn ($collection) => [$collection->id, ...$collection->ancestors->pluck('id')])
+            ->unique()
+            ->values()
+            ->all();
        $data['slugs'] = $model->urls->pluck('slug')->unique()->values()->all();
        $data['tags'] = $model->tags->pluck('value')->all();
        $data['media'] = $model->media->map(fn (Media $media) => $this->mapMedia($media))->all();
        $data['variants'] = $model->variants->map(fn (ProductVariant $variant) => $this->mapVariant($variant, $currency))->all();
        $data['price'] = $this->cheapestPrice($model, $currency);
-        $data['reviews'] = $reviews->map(fn (ProductReview $review) => $this->mapReview($review))->all();
-        $data['review_count'] = $reviews->count();
-        $data['average_rating'] = $reviews->isEmpty() ? null : round($reviews->avg('rating'), 1);
+        $data['reviews'] = [
+            'items' => $reviews->map(fn (ProductReview $review) => $this->mapReview($review))->all(),
+            'count' => $reviews->count(),
+            'average_rating' => $reviews->isEmpty() ? null : round($reviews->avg('rating'), 1),
+        ];
+        $data['channel_ids'] = $model->channels()
+            ->wherePivot('enabled', true)
+            ->pluck('lunar_channels.id')
+            ->toArray();
+        $data['in_stock'] = $model->variants->contains(
+            fn (ProductVariant $variant) => $variant->canBeFulfilledAtQuantity(1)
+        );

        return $data;
    }
@@ -96,6 +139,7 @@ class ProductIndexer extends BaseProductIndexer
            'purchasable' => $variant->purchasable,
            'options' => $variant->values->map(fn ($value) => [
                'option' => $this->translatedName($value->option->name),
+                'handle' => $value->option->handle,
                'value' => $this->translatedName($value->name),
                'meta' => $value->meta,
            ])->all(),
@@ -0,0 +1,68 @@
+<?php
+
+namespace Modules\Core\Catalog\Services;
+
+use Modules\Core\Catalog\Contracts\ProductOptionTypeInterface;
+
+/**
+ * Resolves an admin-selected option type key to the `ProductOptionTypeInterface`
+ * describing it. The selection (which key a given `Lunar\Models\ProductOption` uses)
+ * is stored per-option in `ProductOption::meta['option_type']` — deliberately not
+ * tied to the option's `handle`, since a shop's own handle naming (e.g. transliterated
+ * Greek, legacy imports) shouldn't have to match a type's key.
+ *
+ * A singleton registry, same shape as `Modules\Core\Notification\NotificationRegistry`
+ * — a consuming app calls `ProductOptionTypeManager::get()->register([...])` from its
+ * own service provider `boot()`, rather than listing classes in a published config
+ * file.
+ */
+class ProductOptionTypeManager
+{
+    private static ?self $instance = null;
+
+    /** @var array<string, class-string<ProductOptionTypeInterface>> */
+    private array $types = [];
+
+    private function __construct() {}
+
+    public static function get(): static
+    {
+        if (static::$instance === null) {
+            static::$instance = new static();
+        }
+
+        return static::$instance;
+    }
+
+    /**
+     * @param array<class-string<ProductOptionTypeInterface>> $types
+     */
+    public function register(array $types): void
+    {
+        foreach ($types as $class) {
+            $this->types[$class::getKey()] = $class;
+        }
+    }
+
+    public function unregister(string $key): void
+    {
+        unset($this->types[$key]);
+    }
+
+    public function resolve(?string $key): ?ProductOptionTypeInterface
+    {
+        if ($key === null || ! isset($this->types[$key])) {
+            return null;
+        }
+
+        return app($this->types[$key]);
+    }
+
+    /**
+     * @return array<string, class-string<ProductOptionTypeInterface>>
+     */
+    public function all(): array
+    {
+        return $this->types;
+    }
+}
@@ -1,6 +1,6 @@
 <?php

-namespace Modules\Core\Search;
+namespace Modules\Core\Catalog\Services;

 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Support\Facades\App;
@@ -0,0 +1,231 @@
+<?php
+
+namespace Modules\Core\Catalog\Services;
+
+use Illuminate\Contracts\Pagination\LengthAwarePaginator as LengthAwarePaginatorContract;
+use Illuminate\Pagination\LengthAwarePaginator;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\App;
+use Lunar\Base\AttributeManifest;
+use Lunar\FieldTypes\TranslatedText;
+use Lunar\Models\Product;
+use Modules\Core\Localization\Services\LanguageCache;
+use Modules\Core\Catalog\DTOs\ProductFilters;
+use Modules\Core\Catalog\Enums\ProductSort;
+
+/**
+ * Storefront product listing/filtering AND single-product lookup, all reading directly
+ * from the Meilisearch index (Modules\Core\Catalog\Services\ProductIndexer) - one data
+ * source, no ->get() model hydration anywhere in this service. Callers get plain arrays
+ * of the indexed document, not Eloquent models.
+ *
+ * Full-text query search lives separately in Modules\Core\Catalog\Services\
+ * ProductSearchService; this service is for browsing/filtering without a search term.
+ */
+class ProductService
+{
+    public function __construct(
+        private readonly LanguageCache $languages,
+        private readonly AttributeManifest $attributes,
+    ) {}
+
+    /**
+     * Returns a real LengthAwarePaginator (not Scout's own paginateRaw() result -
+     * see "Meilisearch driver quirk" below) so a controller/view gets normal
+     * pagination behaviour ($products->links(), JSON serialization, etc.)
+     * without ever touching the raw Meilisearch response directly.
+     */
+    public function list(?ProductFilters $filters = null, int $perPage = 24, int $page = 1, ?ProductSort $sort = null): LengthAwarePaginator
+    {
+        $options = ['filter' => $this->buildFilter($filters)];
+
+        if ($sort !== null) {
+            $options['sort'] = [$sort->toMeilisearchSort()];
+        }
+
+        $paginator = Product::search('')
+            ->options($options)
+            ->paginateRaw(perPage: $perPage, page: $page);
+
+        $data = collect($this->hitsFrom($paginator))
+            ->map(fn (array $product) => $this->withLocalizedFields($product))
+            ->all();
+
+        return new LengthAwarePaginator(
+            items: $data,
+            total: $paginator->total(),
+            perPage: $paginator->perPage(),
+            currentPage: $paginator->currentPage(),
+            options: ['path' => LengthAwarePaginator::resolveCurrentPath()],
+        );
+    }
+
+    /**
+     * Facet value counts for the given filter/field, scoped to the SAME filters
+     * `list()` would apply. Note this does NOT exclude `$field` itself from
+     * `$filters` — e.g. `facets('brand', new ProductFilters(brand: 'Acme'))` would
+     * scope the counts to only "Acme" already, collapsing every other brand's count
+     * to whatever remains under that filter. For a standard "faceted sidebar" (every
+     * brand's count reflecting collection/price/stock filters but NOT the brand
+     * filter itself), build a `$filters` that omits the field being faceted on and
+     * apply that field's own filter separately in the UI/query layer.
+     *
+     * `$field` must be one of ProductIndexer's filterable fields; only discrete-value
+     * fields make sense here (`brand`, `in_stock`) — a numeric field like `price`
+     * would return one "facet" per exact price, not a usable range bucket. Use
+     * `priceRange()` for `price` instead.
+     *
+     * @return array<string, int> facet value => matching product count
+     */
+    public function facets(string $field, ?ProductFilters $filters = null): array
+    {
+        return $this->rawFacets($field, $this->buildFilter($filters))['facetDistribution'][$field] ?? [];
+    }
+
+    /**
+     * The min/max `price` across products matching the given filters (minus
+     * `minPrice`/`maxPrice` themselves, same "scoped but not self-collapsing"
+     * reasoning as `facets()` — a price slider's own bounds shouldn't shrink to
+     * whatever range is currently selected). Backed by Meilisearch's `facetStats`,
+     * not `facetDistribution` — the right feature for a numeric field's range,
+     * where `facets('price')` would otherwise return one entry per exact price.
+     *
+     * @return array{min: ?float, max: ?float} null/null if no product matches
+     */
+    public function priceRange(?ProductFilters $filters = null): array
+    {
+        $filter = $this->buildFilter($filters, exclude: ['price']);
+        $stats = $this->rawFacets('price', $filter)['facetStats']['price'] ?? null;
+
+        return [
+            'min' => $stats['min'] ?? null,
+            'max' => $stats['max'] ?? null,
+        ];
+    }
+
+    private function rawFacets(string $field, ?string $filter): array
+    {
+        return Product::search('')
+            ->options([
+                'filter' => $filter,
+                'facets' => [$field],
+                'hitsPerPage' => 0,
+            ])
+            ->raw();
+    }
+
+    /**
+     * Look up a single product by its URL slug (any locale - slugs are indexed across
+     * all languages, see Modules\Core\Catalog\Services\ProductIndexer). Returns the full
+     * indexed product document, or null if no product has that slug.
+     */
+    public function getBySlug(string $slug): ?array
+    {
+        return $this->findOneWhere('slugs = "'.addcslashes($slug, '"\\').'"');
+    }
+
+    /**
+     * Look up a single product by its primary key. Returns the full indexed product
+     * document, or null if no product has that id.
+     */
+    public function getById(int $id): ?array
+    {
+        return $this->findOneWhere("id = \"{$id}\"");
+    }
+
+    private function findOneWhere(string $filter): ?array
+    {
+        $paginator = Product::search('')
+            ->options(['filter' => $filter])
+            ->paginateRaw(perPage: 1, page: 1);
+
+        $product = $this->hitsFrom($paginator)[0] ?? null;
+
+        return $product !== null ? $this->withLocalizedFields($product) : null;
+    }
+
+    /**
+     * Resolves every translated Product attribute's current-locale value from the
+     * indexer's per-locale `{handle}_{locale}` fields (e.g. `name_el`, `name_en`,
+     * `seo_title_el`, ...) into a plain `{handle}` key, falling back to the store's
+     * default language (LanguageCache::defaultLocale()) when the current locale
+     * has no translation - e.g. a product with no English copy yet still shows its
+     * Greek name on /en/ rather than rendering blank.
+     *
+     * Which handles are translated is read from AttributeManifest - the same
+     * source Lunar's own ScoutIndexer reads when exploding a TranslatedText
+     * attribute into `{handle}_{locale}` keys at index time - rather than a fixed
+     * list, so a store's own custom translated attributes (e.g. `seo_title`) are
+     * picked up automatically with no change here. The raw per-locale keys are
+     * then stripped, since once resolved, callers only ever need the one that
+     * matched the current locale.
+     *
+     * Deliberately not config('app.locale') - App::setLocale() overwrites that
+     * config value on every request, so by request time it's just whatever the
+     * current locale already is, not a stable fallback.
+     */
+    private function withLocalizedFields(array $product): array
+    {
+        $locale = App::getLocale();
+        $fallbackLocale = $this->languages->defaultLocale();
+        $availableLocales = $this->languages->availableLocales();
+
+        foreach ($this->translatedAttributeHandles() as $handle) {
+            $product[$handle] = $product[$handle.'_'.$locale] ?? $product[$handle.'_'.$fallbackLocale] ?? null;
+
+            foreach ($availableLocales as $availableLocale) {
+                unset($product[$handle.'_'.$availableLocale]);
+            }
+        }
+
+        return $product;
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function translatedAttributeHandles(): array
+    {
+        return $this->attributes->getSearchableAttributes((new Product)->getMorphClass())
+            ->filter(fn ($attribute) => $attribute->type === TranslatedText::class)
+            ->pluck('handle')
+            ->all();
+    }
+
+    /**
+     * For the Meilisearch driver, Scout's paginateRaw() puts the whole raw response
+     * (hits, query, processingTimeMs, ...) in items(), not a plain list of hits - the
+     * actual documents are under the 'hits' key.
+     */
+    private function hitsFrom(LengthAwarePaginatorContract $paginator): array
+    {
+        $rawResponse = $paginator->items();
+
+        return collect($rawResponse['hits'] ?? [])->values()->all();
+    }
+
+    /**
+     * @param array<int, 'collectionId'|'brand'|'price'|'inStockOnly'> $exclude filter
+     *   fields to leave out even if set on $filters — e.g. priceRange() excludes
+     *   'price' so a price slider's own bounds don't shrink to whatever range is
+     *   already selected on it.
+     */
+    private function buildFilter(?ProductFilters $filters, array $exclude = []): ?string
+    {
+        if ($filters === null) {
+            return null;
+        }
+
+        $clauses = Collection::make([
+            'collectionId' => $filters->collectionId !== null ? "collection_ids = \"{$filters->collectionId}\"" : null,
+            'brand' => $filters->brand !== null ? 'brand = "'.addcslashes($filters->brand, '"\\').'"' : null,
+            'price' => Collection::make([
+                $filters->minPrice !== null ? "price >= {$filters->minPrice}" : null,
+                $filters->maxPrice !== null ? "price <= {$filters->maxPrice}" : null,
+            ])->filter()->join(' AND ') ?: null,
+            'inStockOnly' => $filters->inStockOnly ? 'in_stock = true' : null,
+        ])->except($exclude)->filter();
+
+        return $clauses->isEmpty() ? null : $clauses->join(' AND ');
+    }
+}
@@ -18,7 +18,9 @@ use Lunar\Models\Product;
 use Lunar\Models\ProductType;
 use Lunar\Models\TaxClass;
 use Lunar\Models\TaxZone;
-use Spatie\TranslationLoader\LanguageLine;
+use Modules\Core\Localization\Models\LanguageLine;
+use Modules\Core\Localization\Services\StorefrontLabels;
+use Modules\Core\Localization\Services\TranslationService;

 /**
 * Overrides Lunar's own lunar:install to skip the interactive prompts (migrate
@@ -32,7 +34,7 @@ class InstallLunarCommand extends Command

    protected $description = 'Seed the default Lunar store data (countries, channel, currency, tax zone, attributes, product type)';

-    public function handle(): void
+    public function handle(TranslationService $translations): void
    {
        $this->components->info('Seeding default Lunar store data...');

@@ -242,10 +244,8 @@ class InstallLunarCommand extends Command
            }
        });

-        if (! LanguageLine::where('group', 'storefront')->exists()) {
-            $this->components->info('Seeding storefront label translations');
-            $this->seedStorefrontLabels();
-        }
+        $this->components->info('Seeding storefront label translations');
+        $this->seedStorefrontLabels($translations);

        $this->components->info('Publishing Filament assets');
        $this->call('filament:assets');
@@ -253,32 +253,29 @@ class InstallLunarCommand extends Command
        $this->components->info('Lunar default data seeded.');
    }

-    private function seedStorefrontLabels(): void
+    /**
+     * Per-key upsert, not an all-or-nothing "only seed if the group is empty" guard —
+     * a key already present in the database (including one an admin has since edited
+     * via the Filament Languages resource) is left untouched; only keys missing
+     * entirely are created. This is what makes it safe to add new keys to
+     * StorefrontLabels later and re-run this on an already-installed store without
+     * either skipping the new keys (the old all-or-nothing guard) or reverting an
+     * admin's edits back to the hardcoded default (a naive updateOrCreate would).
+     */
+    private function seedStorefrontLabels(TranslationService $translations): void
    {
-        $labels = [
-            'nav.home' => ['en' => 'Home', 'el' => 'Αρχική'],
-            'nav.products' => ['en' => 'Products', 'el' => 'Προϊόντα'],
-            'nav.cart' => ['en' => 'Cart', 'el' => 'Καλάθι'],
-            'nav.account' => ['en' => 'Account', 'el' => 'Λογαριασμός'],
-            'nav.back' => ['en' => 'Back', 'el' => 'Πίσω'],
-            'cart.empty' => ['en' => 'Your cart is empty', 'el' => 'Το καλάθι σας είναι άδειο'],
-            'cart.checkout' => ['en' => 'Checkout', 'el' => 'Ολοκλήρωση Παραγγελίας'],
-            'cart.total' => ['en' => 'Total', 'el' => 'Σύνολο'],
-            'cart.remove' => ['en' => 'Remove', 'el' => 'Αφαίρεση'],
-            'product.add_to_cart' => ['en' => 'Add to Cart', 'el' => 'Προσθήκη στο Καλάθι'],
-            'product.out_of_stock' => ['en' => 'Out of Stock', 'el' => 'Εξαντλήθηκε'],
-            'product.price' => ['en' => 'Price', 'el' => 'Τιμή'],
-            'auth.login' => ['en' => 'Log In', 'el' => 'Σύνδεση'],
-            'auth.logout' => ['en' => 'Log Out', 'el' => 'Αποσύνδεση'],
-            'search.placeholder' => ['en' => 'Search products…', 'el' => 'Αναζήτηση προϊόντων…'],
-        ];
+        $labels = StorefrontLabels::all();
+
+        $existingKeys = LanguageLine::where('group', 'storefront')
+            ->whereIn('key', array_keys($labels))
+            ->pluck('key');

        foreach ($labels as $key => $text) {
-            LanguageLine::create([
-                'group' => 'storefront',
-                'key' => $key,
-                'text' => $text,
-            ]);
+            if ($existingKeys->contains($key)) {
+                continue;
+            }
+
+            $translations->create('storefront', $key, $text);
        }
    }
 }
@@ -6,6 +6,8 @@ use Filament\Contracts\Plugin;
 use Filament\Panel;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Support\Facades\Mail;
+use Lunar\Admin\Filament\Resources\ProductOptionResource;
+use Lunar\Admin\Filament\Resources\ProductOptionResource\RelationManagers\ValuesRelationManager;
 use Lunar\Admin\Filament\Resources\ProductResource;
 use Lunar\Admin\Filament\Resources\StaffResource;
 use Lunar\Admin\Models\Staff as LunarStaff;
@@ -15,8 +17,11 @@ use Lunar\Shipping\ShippingPlugin;
 use Modules\Core\Auth\Extensions\StaffResourceExtension;
 use Modules\Core\Auth\Filament\Pages\Login;
 use Modules\Core\Auth\Mail\InviteMail;
+use Modules\Core\Cart\Filament\Resources\CartResource;
+use Modules\Core\Catalog\Filament\Extensions\ProductOptionResourceExtension;
+use Modules\Core\Catalog\Filament\Extensions\ValuesRelationManagerExtension;
 use Modules\Core\Localization\Filament\Resources\LanguageLineResource;
-use Modules\Core\Review\Extensions\ProductResourceExtension;
+use Modules\Core\Review\Filament\Extensions\ProductResourceExtension;
 use Modules\Core\Review\Models\ProductReview;

 class CorePlugin implements Plugin
@@ -35,12 +40,15 @@ class CorePlugin implements Plugin
            ->login(Login::class)
            ->resources([
                LanguageLineResource::class,
+                CartResource::class,
            ])
            ->plugin(ShippingPlugin::make());

        LunarPanel::extensions([
            StaffResource::class => StaffResourceExtension::class,
            ProductResource::class => ProductResourceExtension::class,
+            ProductOptionResource::class => ProductOptionResourceExtension::class,
+            ValuesRelationManager::class => ValuesRelationManagerExtension::class,
        ]);

        Product::macro('reviews', function (): HasMany {
@@ -5,7 +5,7 @@ namespace Modules\Core\Localization\Filament\Resources\LanguageLineResource\Page
 use Filament\Resources\Pages\CreateRecord;
 use Illuminate\Database\Eloquent\Model;
 use Modules\Core\Localization\Filament\Resources\LanguageLineResource;
-use Modules\Core\Localization\TranslationService;
+use Modules\Core\Localization\Services\TranslationService;

 class CreateLanguageLine extends CreateRecord
 {
@@ -7,7 +7,7 @@ use Filament\Actions\Action;
 use Filament\Resources\Pages\EditRecord;
 use Illuminate\Database\Eloquent\Model;
 use Modules\Core\Localization\Filament\Resources\LanguageLineResource;
-use Modules\Core\Localization\TranslationService;
+use Modules\Core\Localization\Services\TranslationService;
 use Spatie\TranslationLoader\LanguageLine;

 class EditLanguageLine extends EditRecord
@@ -5,12 +5,14 @@ namespace Modules\Core\Localization\Listeners;
 use Modules\Core\Localization\Events\LanguageCreated;
 use Modules\Core\Localization\Events\LanguageDeleted;
 use Modules\Core\Localization\Events\LanguageUpdated;
-use Modules\Core\Localization\LocaleMiddleware;
+use Modules\Core\Localization\Services\LanguageCache;

 class FlushLanguageCache
 {
+    public function __construct(private readonly LanguageCache $languages) {}
+
    public function handle(LanguageCreated|LanguageUpdated|LanguageDeleted $event): void
    {
-        LocaleMiddleware::forgetLanguagesCache();
+        $this->languages->forget();
    }
 }
@@ -1,24 +1,24 @@
 <?php

-namespace Modules\Core\Localization;
+namespace Modules\Core\Localization\Middleware;

 use Closure;
 use Illuminate\Http\Request;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\App;
-use Illuminate\Support\Facades\Cache;
 use Illuminate\Support\Facades\URL;
 use Illuminate\Support\Facades\View;
 use Lunar\Models\Language;
+use Modules\Core\Localization\Services\LanguageCache;
 use Symfony\Component\HttpFoundation\Response;

 class LocaleMiddleware
 {
-    private const CACHE_KEY = 'core.localization.languages';
+    public function __construct(private readonly LanguageCache $languages) {}

    public function handle(Request $request, Closure $next): Response
    {
-        $languages = $this->availableLanguages();
+        $languages = $this->languages->all();

        if ($languages->isEmpty()) {
            return $next($request);
@@ -45,41 +45,37 @@ class LocaleMiddleware
        return $next($request);
    }

-    public static function forgetLanguagesCache(): void
-    {
-        Cache::forget(self::CACHE_KEY);
-    }
-
    /**
-     * The store's default language code (e.g. 'el') - the fixed fallback other
-     * locale-aware code (Modules\Core\Catalog\ProductService) should use, as
-     * opposed to config('app.locale') which App::setLocale() mutates per
-     * request and so can't serve as a stable fallback.
-     */
-    public static function defaultLocale(): ?string
-    {
-        return (new self)->availableLanguages()->firstWhere('default', true)?->code;
-    }
-
-    /**
-     * Shares the current/alternate locale (and the alternate's URL) with all
-     * views, so the header language switcher and layout hreflang tags don't
-     * have to recompute it.
+     * Shares the current locale and every OTHER available locale (each with its
+     * own URL for the current page) with all views, so the header language
+     * switcher and layout hreflang tags don't have to recompute it.
+     *
+     * `altLocales` is a collection, not a single value — firstWhere('code', '!=',
+     * ...) would only ever surface one alternate, which happens to look correct
+     * with exactly 2 configured languages (there's only one "other" to find) but
+     * silently drops every locale past the first for a 3+ language store, with no
+     * error, just fewer switcher options than actually configured. A view iterates
+     * `$altLocales` to render as many links/dropdown entries as there are
+     * alternates, whether that's 1 or 10.
     */
    private function shareLocaleViewData(Request $request, Language $language, Collection $languages): void
    {
-        $altLanguage = $languages->firstWhere('code', '!=', $language->code);
        $route = $request->route();
        $routeName = $route?->getName();

+        $altLocales = $languages
+            ->reject(fn (Language $other) => $other->code === $language->code)
+            ->map(fn (Language $other) => [
+                'code' => $other->code,
+                'name' => $other->name,
+                'url' => $routeName
+                    ? route($routeName, array_merge($route->parameters(), ['locale' => $other->code]))
+                    : url('/'.$other->code),
+            ])
+            ->values();
+
        View::share('currentLocale', $language->code);
-        View::share('altLocale', $altLanguage?->code);
-        View::share(
-            'altLocaleUrl',
-            $altLanguage && $routeName
-                ? route($routeName, array_merge($route->parameters(), ['locale' => $altLanguage->code]))
-                : ($altLanguage ? url('/'.$altLanguage->code) : null),
-        );
+        View::share('altLocales', $altLocales);
    }

    private function redirectToLocalizedUrl(Request $request, Collection $languages): Response
@@ -108,12 +104,4 @@ class LocaleMiddleware
        return $languages->firstWhere('default', true)?->code
            ?? $languages->first()->code;
    }
-
-    private function availableLanguages(): Collection
-    {
-        return Cache::rememberForever(
-            self::CACHE_KEY,
-            fn () => Language::query()->get(['id', 'code', 'name', 'default']),
-        );
-    }
 }
@@ -0,0 +1,32 @@
+<?php
+
+namespace Modules\Core\Localization\Models;
+
+use Modules\Core\Localization\Services\LanguageCache;
+use Spatie\TranslationLoader\LanguageLine as BaseLanguageLine;
+
+/**
+ * Overrides the base package's locale fallback (config('app.fallback_locale'), a
+ * static .env value) with the store's actual default language — Lunar's
+ * `languages.default` flag, the same source LocaleMiddleware/LanguageCache already
+ * treat as the single source of truth for "this store's default language".
+ *
+ * Without this, changing the default language via the Filament Languages resource
+ * has no effect on which locale an untranslated storefront label falls back to —
+ * two disconnected "default locale" concepts silently drifting apart. Swapped in
+ * via config('translation-loader.model') (see LocalizationServiceProvider), the
+ * package's own documented extension point for this.
+ */
+class LanguageLine extends BaseLanguageLine
+{
+    public function getTranslation(string $locale): ?string
+    {
+        if (isset($this->text[$locale])) {
+            return $this->text[$locale];
+        }
+
+        $fallback = app(LanguageCache::class)->defaultLocale();
+
+        return $fallback !== null ? ($this->text[$fallback] ?? null) : null;
+    }
+}
@@ -1,6 +1,6 @@
 <?php

-namespace Modules\Core\Localization;
+namespace Modules\Core\Localization\Observers;

 use Illuminate\Support\Facades\Event;
 use Lunar\Models\Language;
@@ -0,0 +1,58 @@
+<?php
+
+namespace Modules\Core\Localization\Services;
+
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Cache;
+use Lunar\Models\Language;
+
+/**
+ * Cached read layer over Lunar's `languages` table — the single source both
+ * Modules\Core\Localization\Middleware\LocaleMiddleware (request-time locale resolution) and
+ * any other locale-aware code (e.g. Modules\Core\Catalog\Services\ProductService) read
+ * from, so the language list is fetched once per cache lifetime rather than once
+ * per caller. Cached forever, invalidated via forget() by
+ * Modules\Core\Localization\Listeners\FlushLanguageCache on
+ * LanguageCreated/LanguageUpdated/LanguageDeleted.
+ */
+class LanguageCache
+{
+    private const CACHE_KEY = 'core.localization.languages';
+
+    public function all(): Collection
+    {
+        return Cache::rememberForever(
+            self::CACHE_KEY,
+            fn () => Language::query()->get(['id', 'code', 'name', 'default']),
+        );
+    }
+
+    /**
+     * The store's default language code (e.g. 'el') - the fixed fallback other
+     * locale-aware code should use, as opposed to config('app.locale') which
+     * App::setLocale() mutates per request and so can't serve as a stable
+     * fallback.
+     */
+    public function defaultLocale(): ?string
+    {
+        return $this->all()->firstWhere('default', true)?->code;
+    }
+
+    /**
+     * Every configured store locale code (e.g. ['el', 'en']) - for code that needs
+     * to enumerate all locales a TranslatedText attribute was indexed under (see
+     * Modules\Core\Catalog\Services\ProductService::withLocalizedFields()), rather than
+     * hardcoding locale codes.
+     *
+     * @return array<int, string>
+     */
+    public function availableLocales(): array
+    {
+        return $this->all()->pluck('code')->all();
+    }
+
+    public function forget(): void
+    {
+        Cache::forget(self::CACHE_KEY);
+    }
+}
@@ -0,0 +1,84 @@
+<?php
+
+namespace Modules\Core\Localization\Services;
+
+/**
+ * Default storefront UI label translations (group `storefront`), seeded by
+ * Modules\Core\Command\InstallLunarCommand. Kept as its own class, separate from
+ * the seeding logic, so the actual label list can be scanned/diffed without wading
+ * through the upsert mechanics — see InstallLunarCommand::seedStorefrontLabels()
+ * for how (and how safely) these get written.
+ */
+class StorefrontLabels
+{
+    /**
+     * @return array<string, array<string, string>> keyed by `group.key` dot-notation,
+     *   each value a locale => text map (`en`/`el`).
+     */
+    public static function all(): array
+    {
+        return [
+            'nav.home' => ['en' => 'Home', 'el' => 'Αρχική'],
+            'nav.products' => ['en' => 'Products', 'el' => 'Προϊόντα'],
+            'nav.cart' => ['en' => 'Cart', 'el' => 'Καλάθι'],
+            'nav.account' => ['en' => 'Account', 'el' => 'Λογαριασμός'],
+            'nav.back' => ['en' => 'Back', 'el' => 'Πίσω'],
+            'nav.contact' => ['en' => 'Contact', 'el' => 'Επικοινωνία'],
+            'cart.empty' => ['en' => 'Your cart is empty', 'el' => 'Το καλάθι σας είναι άδειο'],
+            'cart.checkout' => ['en' => 'Checkout', 'el' => 'Ολοκλήρωση Παραγγελίας'],
+            'cart.total' => ['en' => 'Total', 'el' => 'Σύνολο'],
+            'cart.remove' => ['en' => 'Remove', 'el' => 'Αφαίρεση'],
+            'product.add_to_cart' => ['en' => 'Add to Cart', 'el' => 'Προσθήκη στο Καλάθι'],
+            'product.out_of_stock' => ['en' => 'Out of Stock', 'el' => 'Εξαντλήθηκε'],
+            'product.price' => ['en' => 'Price', 'el' => 'Τιμή'],
+            'product.description' => ['en' => 'Description', 'el' => 'Περιγραφή'],
+            'product.no_image' => ['en' => 'No image', 'el' => 'Χωρίς εικόνα'],
+            'product.read_more' => ['en' => 'Read more', 'el' => 'Περισσότερα'],
+            'product.reviews' => ['en' => 'Reviews', 'el' => 'Αξιολογήσεις'],
+            'auth.login' => ['en' => 'Log In', 'el' => 'Σύνδεση'],
+            'auth.logout' => ['en' => 'Log Out', 'el' => 'Αποσύνδεση'],
+            'search.placeholder' => ['en' => 'Search products…', 'el' => 'Αναζήτηση προϊόντων…'],
+            'customer_reviews' => [
+                'en' => '{0} No customer reviews|{1} :count customer review|[2,*] :count customer reviews',
+                'el' => '{0} Καμία αξιολόγηση πελάτη|{1} :count αξιολόγηση πελάτη|[2,*] :count αξιολογήσεις πελατών',
+            ],
+            'pagination.nav_label' => ['en' => 'Pagination', 'el' => 'Σελιδοποίηση'],
+            'pagination.next' => ['en' => 'Next page', 'el' => 'Επόμενη σελίδα'],
+            'pagination.previous' => ['en' => 'Previous page', 'el' => 'Προηγούμενη σελίδα'],
+            'pagination.page' => ['en' => 'Page :page', 'el' => 'Σελίδα :page'],
+            'review.rating' => ['en' => 'Rating', 'el' => 'Βαθμολογία'],
+            'review.write_label' => ['en' => 'Write a review', 'el' => 'Γράψε μια αξιολόγηση'],
+            'review.name' => ['en' => 'Name', 'el' => 'Όνομα'],
+            'review.name_optional' => ['en' => 'Optional', 'el' => 'Προαιρετικό'],
+            'review.email' => ['en' => 'Email', 'el' => 'Email'],
+            'review.email_not_published' => ['en' => 'Will not be published', 'el' => 'Δεν θα δημοσιευτεί'],
+            'review.save_info' => [
+                'en' => 'Save my name and email for the next time I comment.',
+                'el' => 'Αποθήκευσε το όνομα και το email μου για την επόμενη φορά που θα σχολιάσω.',
+            ],
+            'review.submit' => ['en' => 'Submit', 'el' => 'Υποβολή'],
+            'review.stars_count' => ['en' => '{1} :count star|[2,*] :count stars', 'el' => '{1} :count αστέρι|[2,*] :count αστέρια'],
+            'review.no_reviews_yet' => ['en' => 'No reviews yet.', 'el' => 'Δεν υπάρχουν αξιολογήσεις ακόμα.'],
+            'review.write_first' => ['en' => 'Write the first review', 'el' => 'Γράψε την πρώτη'],
+            'review.write_new' => ['en' => 'Add a review', 'el' => 'Πρόσθεσε μια'],
+            'review.for_product' => ['en' => 'review for ":name"', 'el' => 'αξιολόγηση για το «:name»'],
+            'shop.showing_results' => [
+                'en' => '{0} No products found|{1} Showing :first–:last of :total result|[2,*] Showing :first–:last of :total results',
+                'el' => '{0} Δεν βρέθηκαν προϊόντα|{1} Εμφάνιση :first–:last από :total αποτέλεσμα|[2,*] Εμφάνιση :first–:last από :total αποτελέσματα',
+            ],
+            'shop.sort_label' => ['en' => 'Sort products', 'el' => 'Ταξινόμηση προϊόντων'],
+            'shop.sort_default' => ['en' => 'Default sorting', 'el' => 'Προεπιλεγμένη ταξινόμηση'],
+            'shop.sort_popularity' => ['en' => 'Popularity', 'el' => 'Δημοφιλή'],
+            'shop.sort_price_asc' => ['en' => 'Price: Low to High', 'el' => 'Τιμή: Αύξουσα'],
+            'shop.sort_price_desc' => ['en' => 'Price: High to Low', 'el' => 'Τιμή: Φθίνουσα'],
+            'shop.sort_newest' => ['en' => 'Newest', 'el' => 'Νεότερα'],
+            'shop.no_products' => ['en' => 'No products found in this category.', 'el' => 'Δεν βρέθηκαν προϊόντα σε αυτή την κατηγορία.'],
+            'shop.search_label' => ['en' => 'Search products', 'el' => 'Αναζήτηση προϊόντων'],
+            'shop.search_placeholder' => ['en' => 'Search products…', 'el' => 'Αναζήτησε προϊόντα…'],
+            'shop.filter_price' => ['en' => 'Filter by price', 'el' => 'Φίλτρο τιμής'],
+            'shop.apply' => ['en' => 'Apply', 'el' => 'Εφαρμογή'],
+            'shop.availability' => ['en' => 'Availability', 'el' => 'Διαθεσιμότητα'],
+            'shop.in_stock_only' => ['en' => 'In-stock products only', 'el' => 'Μόνο διαθέσιμα προϊόντα'],
+        ];
+    }
+}
@@ -1,6 +1,6 @@
 <?php

-namespace Modules\Core\Localization;
+namespace Modules\Core\Localization\Services;

 use Illuminate\Support\Facades\App;
 use Spatie\TranslationLoader\LanguageLine;
@@ -1,6 +1,6 @@
 <?php

-namespace Modules\Core\Localization;
+namespace Modules\Core\Localization\Services;

 use Illuminate\Support\Facades\Event;
 use Modules\Core\Localization\Events\TranslationCreated;
@@ -7,13 +7,23 @@ use Lunar\Models\Url;

 class ProductResolver
 {
+    /**
+     * A slug can have more than one `lunar_urls` row pointing at it across import
+     * batches — e.g. a product soft-deleted and re-imported leaves its old URL row
+     * behind, still matching the same slug. Picking "whichever Url row matches
+     * first" (as a plain Url::where('slug', ...)->first() would) can resolve to a
+     * soft-deleted product, silently failing every downstream write for that
+     * product (e.g. JudgeMeExportImporter logging "no product found" for a handle
+     * that, in isolation, clearly exists). Join against `lunar_products` directly
+     * so only a URL pointing at a live (non-deleted) product resolves.
+     */
    public function resolve(string $handle): ?Product
    {
-        $url = Url::query()
-            ->where('slug', $handle)
-            ->where('element_type', (new Product)->getMorphClass())
+        return Product::query()
+            ->join('lunar_urls', 'lunar_urls.element_id', '=', 'lunar_products.id')
+            ->where('lunar_urls.slug', $handle)
+            ->where('lunar_urls.element_type', (new Product)->getMorphClass())
+            ->select('lunar_products.*')
            ->first();
-
-        return $url?->element;
    }
 }
@@ -0,0 +1,23 @@
+<?php
+
+namespace Modules\Core\Providers;
+
+use Illuminate\Console\Scheduling\Schedule;
+use Illuminate\Support\ServiceProvider;
+use Modules\Core\Cart\Commands\DetectAbandonedCarts;
+
+class CartServiceProvider extends ServiceProvider
+{
+    public function boot(): void
+    {
+        if ($this->app->runningInConsole()) {
+            $this->commands([DetectAbandonedCarts::class]);
+        }
+
+        $this->app->booted(function () {
+            $this->app->make(Schedule::class)
+                ->command(DetectAbandonedCarts::class)
+                ->hourly();
+        });
+    }
+}
@@ -0,0 +1,28 @@
+<?php
+
+namespace Modules\Core\Providers;
+
+use Illuminate\Support\ServiceProvider;
+use Lunar\Models\ProductOption;
+use Lunar\Models\ProductOptionValue;
+use Modules\Core\Catalog\Observers\ProductOptionReindexObserver;
+use Modules\Core\Catalog\OptionTypes\ColorOptionType;
+use Modules\Core\Catalog\Services\ProductOptionTypeManager;
+
+class CatalogServiceProvider extends ServiceProvider
+{
+    public function boot(): void
+    {
+        ProductOptionTypeManager::get()->register([
+            ColorOptionType::class,
+        ]);
+
+        $observer = new ProductOptionReindexObserver;
+
+        ProductOption::saved(fn (ProductOption $option) => $observer->optionSaved($option));
+        ProductOption::deleted(fn (ProductOption $option) => $observer->optionDeleted($option));
+
+        ProductOptionValue::saved(fn (ProductOptionValue $value) => $observer->valueSaved($value));
+        ProductOptionValue::deleted(fn (ProductOptionValue $value) => $observer->valueDeleted($value));
+    }
+}
@@ -11,15 +11,26 @@ use Modules\Core\Localization\Events\LanguageUpdated;
 use Modules\Core\Localization\Events\TranslationCreated;
 use Modules\Core\Localization\Events\TranslationDeleted;
 use Modules\Core\Localization\Events\TranslationUpdated;
-use Modules\Core\Localization\LanguageCacheObserver;
 use Modules\Core\Localization\Listeners\FlushLanguageCache;
 use Modules\Core\Localization\Listeners\FlushTranslationCache;
 use Modules\Core\Localization\Listeners\LogTranslationActivity;
 use Modules\Core\Localization\Listeners\MigrateTranslationsForRenamedLanguage;
-use Modules\Core\Localization\LocaleMiddleware;
+use Modules\Core\Localization\Middleware\LocaleMiddleware;
+use Modules\Core\Localization\Models\LanguageLine;
+use Modules\Core\Localization\Observers\LanguageCacheObserver;

 class LocalizationServiceProvider extends ServiceProvider
 {
+    public function register(): void
+    {
+        // Must run before Spatie\TranslationLoader\TranslationServiceProvider's
+        // register() merges its own config defaults - mergeConfigFrom() only fills
+        // in keys not already set, so setting this here (regardless of provider
+        // boot order) makes it win over the package's default
+        // Spatie\TranslationLoader\LanguageLine::class.
+        config(['translation-loader.model' => LanguageLine::class]);
+    }
+
    public function boot(): void
    {
        $this->app['router']->aliasMiddleware('locale', LocaleMiddleware::class);
@@ -9,8 +9,8 @@ use Modules\Core\Review\Models\ProductReview;
 * Keeps a product's Meilisearch document in sync with its reviews. A review is
 * created/edited independently of its product (customer submission, staff reply),
 * so the product's own save/update events never fire for it — without this listener,
- * Modules\Core\Search\ProductIndexer's review data would only refresh on the next
- * full product reindex.
+ * Modules\Core\Catalog\Services\ProductIndexer's review data would only refresh on
+ * the next full product reindex.
 */
 class ReviewServiceProvider extends ServiceProvider
 {
@@ -0,0 +1,31 @@
+<?php
+
+namespace Modules\Core\Recovery\Events;
+
+use Lunar\Models\Cart;
+
+/**
+ * A cart has gone stale (no activity for config('core.cart.abandoned_after'))
+ * with NO order ever started — the shopper added items and never began
+ * checkout. Weak purchase-intent signal: usually a browsing/price-check
+ * action, not a near-purchase. Distinct from CheckoutAbandoned, which fires
+ * for a cart that DID reach checkout (a draft Order exists) but never placed
+ * it — a much stronger intent signal, and reachable via the email/address
+ * checkout itself usually captures even for a guest.
+ *
+ * Lives under Recovery, not Cart — abandonment detection/tracking is
+ * deliberately kept out of the Cart module entirely, including its event
+ * definitions, so Cart has no abandonment-related code at all. See
+ * docs/cart.md and docs/recovery-strategies.md.
+ *
+ * "Abandoned" is a derived state (stale updated_at), not something that
+ * transitions via a normal Eloquent write, so there's no natural model-event
+ * hook to dispatch this from directly — detection is Recovery's own concern
+ * (not yet built; design notes in docs/recovery-strategies.md).
+ */
+class CartAbandoned
+{
+    public function __construct(
+        public readonly Cart $cart,
+    ) {}
+}
@@ -0,0 +1,33 @@
+<?php
+
+namespace Modules\Core\Recovery\Events;
+
+use Lunar\Models\Cart;
+use Lunar\Models\Order;
+
+/**
+ * A cart's checkout has gone stale (no activity for
+ * config('core.cart.abandoned_after')) with a draft Order already created
+ * (Order::isDraft() — placed_at IS NULL) but never placed. Strong
+ * purchase-intent signal — the shopper committed to checking out, something
+ * blocked completion. Distinct from CartAbandoned, which fires for a cart
+ * with no order at all (weak intent, usually unreachable). Checkout
+ * typically captures an email/address even for a guest, so this state is
+ * normally reachable regardless of login status.
+ *
+ * Lives under Recovery, not Checkout/Cart — abandonment detection/tracking
+ * is deliberately kept out of both modules entirely, including its event
+ * definitions. See docs/cart.md and docs/recovery-strategies.md.
+ *
+ * "Abandoned" is a derived state (stale updated_at, no placed_at), not
+ * something that transitions via a normal Eloquent write — detection is
+ * Recovery's own concern (not yet built; design notes in
+ * docs/recovery-strategies.md).
+ */
+class CheckoutAbandoned
+{
+    public function __construct(
+        public readonly Cart $cart,
+        public readonly Order $order,
+    ) {}
+}
@@ -1,9 +1,9 @@
 <?php

-namespace Modules\Core\Review\Extensions;
+namespace Modules\Core\Review\Filament\Extensions;

 use Lunar\Admin\Support\Extending\ResourceExtension;
-use Modules\Core\Review\Pages\ManageProductReviews;
+use Modules\Core\Review\Filament\Pages\ManageProductReviews;

 class ProductResourceExtension extends ResourceExtension
 {
@@ -1,6 +1,6 @@
 <?php

-namespace Modules\Core\Review\Pages;
+namespace Modules\Core\Review\Filament\Pages;

 use Filament\Forms\Components\Group;
 use Filament\Forms\Components\Placeholder;
@@ -5,8 +5,11 @@ namespace Modules\Core\Review\Models;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Lunar\Models\Product;
+use Spatie\Image\Enums\BorderType;
+use Spatie\Image\Enums\Fit;
 use Spatie\MediaLibrary\HasMedia;
 use Spatie\MediaLibrary\InteractsWithMedia;
+use Spatie\MediaLibrary\MediaCollections\Models\Media;

 class ProductReview extends Model implements HasMedia
 {
@@ -30,4 +33,23 @@ class ProductReview extends Model implements HasMedia
    {
        $this->addMediaCollection(self::IMAGES_COLLECTION);
    }
+
+    /**
+     * Unlike Product/ProductVariant, this model sits outside Lunar's own
+     * MediaDefinitionsInterface (Lunar\Base\StandardMediaDefinitions), which is
+     * what registers the 'small' conversion those models get automatically. Without
+     * this, Modules\Core\Catalog\Services\ProductIndexer::mapMedia() — shared across
+     * product, variant, and review media — throws Spatie\MediaLibrary\MediaCollections\
+     * Exceptions\InvalidConversion the first time a review has an image, since
+     * $media->getUrl('small') has no matching conversion to resolve.
+     */
+    public function registerMediaConversions(?Media $media = null): void
+    {
+        $this->addMediaConversion('small')
+            ->fit(Fit::Fill, 300, 300)
+            ->border(0, BorderType::Overlay, color: '#FFF')
+            ->background('#FFF')
+            ->sharpen(10)
+            ->keepOriginalImageFormat();
+    }
 }
Author	SHA1	Message	Date
arvanitakis	f6ef0761d6	Feature: Creating Cart Service, Cart Events, Save For Later functionality, Adding Filament Views for viewing abandoned carts	2026-08-28 13:14:47 +03:00
arvanitakis	a8ddbb8056	Feature: Creating Cart Views, rules for abandonment	2026-08-28 00:27:46 +03:00
arvanitakis	e1299fafee	Bump Version to 0.7.0	2026-08-27 23:09:52 +03:00
arvanitakis	1c14fabf44	Feature: Adding Facets, Updating Indexers	2026-08-27 23:09:33 +03:00
arvanitakis	a2c3fd5457	Feature: Reviews restructuring and Creating Collection Indexer and Services	2026-08-27 12:11:01 +03:00
arvanitakis	ba5a9523c8	Feat: Restructuring Products into the Concern Catalog, for future Collection services	2026-08-27 11:42:13 +03:00
arvanitakis	63caaf55c7	Bump Version to 0.6.1	2026-08-27 11:39:43 +03:00
arvanitakis	e4342da44a	Fix: Correcting shape of indexed products	2026-08-27 11:32:20 +03:00
arvanitakis	e95ea4a43c	Fix: Updating Product Options Registry and adding handle to the meilisearch index	2026-08-27 11:14:56 +03:00
arvanitakis	cb3fe095d9	Bump Version to 0.6.0	2026-08-27 01:57:43 +03:00
arvanitakis	eef473dbd2	Feature: Product option types to support multiple cases	2026-08-27 01:55:58 +03:00
arvanitakis	409db9c7bf	Fix: Correcting Language Line fallback resolver	2026-08-27 01:28:37 +03:00
arvanitakis	594fa41527	Feature: Localization Restructuring to follow a stricter pattern	2026-08-27 01:08:34 +03:00
arvanitakis	ef356a6397	Feature: Products Restructuring to follow a strict rule	2026-08-27 01:05:04 +03:00
arvanitakis	b3b5ca740d	Feature: Resolving translated fields based on current locale, while also resturning a correct length aware paginator for the results	2026-08-27 00:48:38 +03:00
arvanitakis	d01d27f7ea	Hotfix: Correcting ProductResolver when importing Products	2026-08-27 00:46:43 +03:00
arvanitakis	b86fe78852	Hotfix: Adding a correct media conversions to handle small review images	2026-08-27 00:34:39 +03:00
arvanitakis	0edf7b156d	Feature: Updating Product Service to handle multiple locales, fetching the correct locale, or, the default locale as fallback	2026-08-26 23:52:33 +03:00
arvanitakis	ef9e9daab0	Bump version to 0.5.4	2026-08-26 18:34:26 +03:00
arvanitakis	751aff5939	Feature: Adding Sorting To Product List	2026-08-26 18:05:15 +03:00
arvanitakis	09844ec2b5	Bump Version to 0.5.3	2026-08-26 14:29:29 +03:00
arvanitakis	885923380d	Hotfix: Selcting correct table name for channel Id	2026-08-26 14:29:08 +03:00
arvanitakis	235fdda4a7	Bump Version to 0.5.2	2026-08-26 13:28:08 +03:00
arvanitakis	c2eb9bd66a	Hotfix: Updating LocaleMiddleware to handle more than 2 languages	2026-08-26 13:26:29 +03:00
arvanitakis	356fbd73c5	Bump Version to 0.5.1	2026-08-26 13:16:07 +03:00
arvanitakis	fa137c9a79	Feature: Adding back ChannelIds on Product Indexer	2026-08-26 13:14:32 +03:00