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

<?php

namespace App\Http\Requests\Ticket;

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

class UpdateTicketRequest 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 [
            'ticket_type_id' => 'sometimes|integer',
            'customer_id'    => 'nullable|integer',
            'title'          => 'sometimes|string|max:255',
            'description'    => 'nullable|string',
            'priority'       => 'sometimes|in:low,medium,high,critical',
            'status'         => 'sometimes|in:draft,open,approved,assigned,progress,pending,resolved,closed,cancelled,rejected'
        ];
    }
}