sam-api/app/Http/Requests/V1/Plan/PlanIndexRequest.php

<?php

namespace App\Http\Requests\V1\Plan;

use App\Http\Requests\Traits\HasPagination;
use Illuminate\Foundation\Http\FormRequest;

class PlanIndexRequest extends FormRequest
{
    use HasPagination;

    public function authorize(): bool
    {
        return true;
    }

    public function rules(): array
    {
        return [
            'is_active' => ['nullable', 'boolean'],
            'billing_cycle' => ['nullable', 'string', 'in:monthly,yearly,lifetime'],
            'search' => ['nullable', 'string', 'max:100'],
            'sort_by' => ['nullable', 'string', 'in:price,name,created_at'],
            'sort_dir' => ['nullable', 'string', 'in:asc,desc'],
            'per_page' => ['nullable', 'integer', 'min:1'],
        ];
    }
}