services_core/app/Http/Requests/Customer/IndexCustomerRequest.php

<?php

namespace App\Http\Requests\Customer;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

class IndexCustomerRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    public function rules(): array
    {
        return [
            'search' => ['nullable', 'string', 'max:255'],
            'source' => ['nullable', Rule::in(['manual', 'mikrotik', 'radius'])],
            'page' => ['nullable', 'integer', 'min:1'],
            'per_page' => ['nullable', 'integer', 'min:1', 'max:100'],
            'sort_by' => ['nullable', Rule::in(['id', 'customer_code', 'name', 'email', 'whatsapp_number', 'status', 'order_stage', 'created_at', 'activated_at'])],
            'sort_direction' => ['nullable', Rule::in(['asc', 'desc'])],
        ];
    }
}