<?php

namespace Lucent\Commands;

use DirectoryIterator;
use Illuminate\Console\Command;
use Lucent\Schema\Schema;
use Lucent\Schema\SchemaService;
use Lucent\Schema\Type;

class CompileSchemas extends Command
{

    protected $signature = 'lucent:schemas';

    protected $description = 'Compiles schemas';


    public function handle(SchemaService $schemaService)
    {

        $configDir = base_path(config('lucent.schemas_path'));
        $schemasDirIterator = new DirectoryIterator($configDir);
        $schemas = $this->scanDir([], $schemasDirIterator);


        $schemas = collect($schemas)->sortBy("label")->values();

        $roles = $schemas
            ->map([$schemaService, 'fromArray'])
            ->whereIn("type", [Type::COLLECTION, Type::FILES])
            ->reduce(fn($carry, Schema $schema) => array_merge(
                $carry,
                $schema->read,
                $schema->write,
                config("lucent.canInvite") ?? [],
                config("lucent.canBuild") ?? [],
            ), []);

        $json = [
            "schemas" => $schemas->toArray(),
            "roles" => collect($roles)->push("admin")->push("removed")->unique()->values()->toArray()
        ];

        if (!file_exists(storage_path("lucent"))) {
            mkdir(storage_path("lucent"));
        }

        file_put_contents(schemas_path(), json_encode($json));

        $this->info("Lucent Schemas were updated");
    }

    private function scanDir(array $schemas, DirectoryIterator $directoryIterator, $dirName = ""): array
    {
        foreach ($directoryIterator as $file) {
            if ($file->isDir()) {
                if ($file->isDot()) {
                    continue;
                }
                $newDirName = $dirName.'.'.$file->getBasename();
                $schemas = $this->scanDir($schemas, new DirectoryIterator($file->getPathname()), $newDirName);
                continue;
            }
            if ($file->getExtension() !== "json") {
                continue;
            }

            $schemaJson = file_get_contents($file->getPathname());


            $schema = json_decode($schemaJson, true);

            if (empty($schema)) {
                $this->error("Invalid JSON " . $file->getFilename());
                die;
            }
            $schema["folder"] = trim($dirName,".");
            $schemas[] = $schema;

        }

        return $schemas;
    }

}