<?php

namespace App\Modules\Movies\Services\Browse\Entities;

use App\Modules\Movies\Models\{Director, Movie};
use App\Modules\Movies\Services\Contracts\GetDirectorWithMoviesServiceInterface;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Database\Eloquent\ModelNotFoundException;

class GetDirectorWithMoviesService implements GetDirectorWithMoviesServiceInterface
{
    /**
     * @param int $id
     * @param array{q?: string|null, per_page?: int|null} $params
     * @return array{entity: Director, movies: LengthAwarePaginator}
     */
    public function handle(int $id, array $params = []): array
    {
        $director = Director::query()->find($id);
        if (!$director) {
            throw (new ModelNotFoundException())->setModel(Director::class, [$id]);
        }

        $perPage = max(1, min((int)($params['per_page'] ?? 20), 50));
        $q = isset($params['q']) ? trim((string)$params['q']) : '';

        $movies = Movie::query()
            ->whereHas('directors', fn($q2) => $q2->whereKey($director->id))
            ->with(['genres'])
            ->when($q !== '', fn($query) => $query->where('title', 'like', "%{$q}%"))
            ->latest()
            ->paginate($perPage);

        return [
            'entity' => $director,
            'movies' => $movies,
        ];
    }
}