services_core/app/Http/Requests/Material/AssignMaterialRequest.php

<?php

namespace App\Http\Requests\Material;

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

class AssignMaterialRequest 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 [
            'user_id' => 'required|integer',
            'barcode_id' => 'required|string',
            'material_name' => 'required|string',

            'type' => 'required|in:serialized,consumable',

            'serial_number' => 'nullable|string',
            'qty' => 'nullable|numeric',
            'unit' => 'nullable|string',
        ];
    }
}