<?php

namespace App\Http\Requests\Purchase;

use Modules\Common\Http\Requests\BaseFormRequest;

/**
 * 采购明细修改 验证（C4；amount 由后端按 weight>0 ? weight×price : quantity×price 重算）
 */
class PurchaseItemUpdateRequest extends BaseFormRequest
{
    protected $stopOnFirstFailure = true;

    public function rules(): array
    {
        return [
            'product_name' => 'nullable|string|max:100',
            'product_spec' => 'nullable|string|max:100',
            'price' => 'required|numeric|min:0',
            'quantity' => 'required|numeric|min:0',
            'weight' => 'nullable|numeric|min:0',
            'remark' => 'nullable|string|max:255',
        ];
    }

    public function messages(): array
    {
        return [
            'price.required' => '采购单价不能为空',
            'price.numeric' => '采购单价必须为数字',
            'price.min' => '采购单价不能小于 0',
            'quantity.required' => '采购量不能为空',
            'quantity.numeric' => '采购量必须为数字',
            'quantity.min' => '采购量不能小于 0',
            'weight.numeric' => '实际称重必须为数字',
            'weight.min' => '实际称重不能小于 0',
        ];
    }
}