core/config/payment.php

<?php

use Modules\Core\Payment\Drivers\CashOnDeliveryPaymentDriver;
use Modules\Core\Payment\Pipelines\Cart\ApplyCashOnDeliveryFee;

return [
    /*
    |--------------------------------------------------------------------------
    | Lunar payment types merged in by Boboko Core
    |--------------------------------------------------------------------------
    |
    | These are merged into config('lunar.payments.types') so every app using
    | boboko-core gets cash-on-delivery out of the box, without publishing
    | Lunar's own config.
    |
    | 'payment_driver' is boboko-owned, alongside Lunar's own 'driver' key —
    | it's the Modules\Core\Checkout\Contracts\PaymentDriver class
    | CheckoutService::confirmPayment() resolves via the container and calls
    | confirm() on. Kept on the same row as 'driver' rather than a second,
    | separately-keyed map, so a type's full definition — Lunar's driver,
    | its config, and its PaymentDriver — lives in one place.
    |
    */
    'types' => [
        'cash-on-delivery' => [
            'driver' => 'offline',
            'payment_driver' => CashOnDeliveryPaymentDriver::class,
            'authorized' => 'awaiting-payment',
            'fee' => 0,
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | Lunar cart pipeline additions
    |--------------------------------------------------------------------------
    |
    | Appended to config('lunar.cart.pipelines.cart') after ApplyShipping so
    | the cash-on-delivery fee is added to the shipping total before the
    | final Calculate step sums everything up.
    |
    */
    'cart_pipeline' => [
        ApplyCashOnDeliveryFee::class,
    ],
];