kknongchang_2506/app/Module/Shop/Validators/ShopFundValidator.php

<?php

namespace App\Module\Shop\Validators;

use App\Module\Fund\Services\AccountService;
use UCore\Validator;

/**
 * 商店资金验证器
 * 
 * 验证用户资金是否充足
 */
class ShopFundValidator extends Validator
{
    /**
     * 验证用户资金
     *
     * @param mixed $value 商品ID
     * @param array $data 包含用户ID和购买数量的数组
     * @return bool 验证是否通过
     */
    public function validate(mixed $value, array $data): bool
    {
        // 从 args 获取参数键名
        $userIdKey = $this->args[0] ?? 'user_id';
        $numberKey = $this->args[1] ?? 'number';
        $shopItemKey = $this->args[2] ?? 'shop_item';

        $userId = $data[$userIdKey] ?? null;
        $number = $data[$numberKey] ?? null;
        $shopItem = $this->validation->$shopItemKey ?? null;

        if (!$userId || !$number || !$shopItem) {
            $this->addError('验证资金时缺少必要参数');
            return false;
        }

        try {
            // 计算总价
            $totalPrice = $shopItem->price * $number;

            // 获取用户账户余额
            $userAccount = AccountService::getUserAccount($userId, $shopItem->currency_id);
            
            if (!$userAccount) {
                $this->addError('用户账户不存在');
                return false;
            }

            if ($userAccount->balance < $totalPrice) {
                $this->addError('余额不足，需要' . $totalPrice . '，当前余额' . $userAccount->balance);
                return false;
            }

            return true;
        } catch (\Exception $e) {
            $this->addError('验证资金时发生错误: ' . $e->getMessage());
            return false;
        }
    }
}