sam-api/app/Http/Requests/Leave/IndexRequest.php

<?php

namespace App\Http\Requests\Leave;

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

class IndexRequest extends FormRequest
{
    use HasPagination;

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

    public function rules(): array
    {
        return [
            'user_id' => 'nullable|integer',
            'status' => 'nullable|string|in:pending,approved,rejected,cancelled',
            'leave_type' => 'nullable|string|in:annual,half_am,half_pm,sick,family,maternity,parental',
            'date_from' => 'nullable|date',
            'date_to' => 'nullable|date|after_or_equal:date_from',
            'year' => 'nullable|integer|min:2020|max:2099',
            'department_id' => 'nullable|integer',
            'sort_by' => 'nullable|string|in:created_at,start_date,end_date,days,status',
            'sort_dir' => 'nullable|string|in:asc,desc',
            'per_page' => 'nullable|integer|min:1',
            'page' => 'nullable|integer|min:1',
        ];
    }
}