services_core/app/Http/Requests/Ticket/ReassignTicketRequest.php

<?php

namespace App\Http\Requests\Ticket;

use Illuminate\Contracts\Validation\ValidationRule;
use Illuminate\Foundation\Http\FormRequest;

class ReassignTicketRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     */
    public function authorize(): bool
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, ValidationRule|array<mixed>|string>
     */
    public function rules(): array
    {
        return [
            'technicians'   => 'required|array|min:1',
            'technicians.*' => 'integer',
            'leader_id'     => 'required|integer'
        ];
    }

    public function messages(): array
    {
        return [
            'technicians.required' => 'Daftar teknisi wajib diisi',
            'technicians.array'    => 'Format teknisi harus array',
            'leader_id.required'   => 'Leader teknisi wajib dipilih'
        ];
    }
}