<?php

namespace App\Module\Transfer\Validations;

use App\Module\Transfer\Validators\TransferAppValidator;
use App\Module\Transfer\Validators\AmountValidator;
use UCore\Validation\ValidationCore;

/**
 * 转出验证类
 */
class TransferOutValidation extends ValidationCore
{
    /**
     * 验证规则
     */
    protected function rules(): array
    {
        return [
            'transfer_app_id' => 'required|integer|min:1',
            'user_id' => 'required|integer|min:1',
            'amount' => 'required|string',
            'password' => 'required|string|min:6',
            'google_code' => 'nullable|string|size:6',
            'out_user_id' => 'nullable|string|max:50',
            'remark' => 'nullable|string|max:255',
            'callback_data' => 'nullable|array',
        ];
    }

    /**
     * 验证消息
     */
    protected function messages(): array
    {
        return [
            'transfer_app_id.required' => '应用ID不能为空',
            'transfer_app_id.integer' => '应用ID必须为整数',
            'transfer_app_id.min' => '应用ID必须大于0',
            'user_id.required' => '用户ID不能为空',
            'user_id.integer' => '用户ID必须为整数',
            'user_id.min' => '用户ID必须大于0',
            'amount.required' => '金额不能为空',
            'amount.string' => '金额必须为字符串格式',
            'password.required' => '安全密码不能为空',
            'password.string' => '安全密码必须为字符串',
            'password.min' => '安全密码长度不能少于6位',
            'google_code.string' => 'Google验证码必须为字符串',
            'google_code.size' => 'Google验证码必须为6位数字',
            'out_user_id.string' => '外部用户ID必须为字符串',
            'out_user_id.max' => '外部用户ID长度不能超过50个字符',
            'remark.string' => '备注必须为字符串',
            'remark.max' => '备注长度不能超过255个字符',
            'callback_data.array' => '回调数据必须为数组格式',
        ];
    }

    /**
     * 自定义验证
     */
    protected function customValidation(): void
    {
        // 验证应用配置
        $appValidator = new TransferAppValidator($this->data['transfer_app_id'] ?? 0);
        if (!$appValidator->validate()) {
            $this->addError('transfer_app_id', $appValidator->getError());
        }

        // 验证金额格式
        if (isset($this->data['amount'])) {
            $amountValidator = new AmountValidator($this->data['amount']);
            if (!$amountValidator->validate()) {
                $this->addError('amount', $amountValidator->getError());
            }
        }

        // 验证用户安全密码
        if (isset($this->data['user_id']) && isset($this->data['password'])) {
            $this->validateUserPassword();
        }

        // 验证Google验证码（如果提供）
        if (isset($this->data['user_id']) && isset($this->data['google_code'])) {
            $this->validateGoogleCode();
        }

        // 验证用户资金余额
        if (isset($this->data['user_id']) && isset($this->data['transfer_app_id']) && isset($this->data['amount'])) {
            $this->validateUserBalance();
        }
    }

    /**
     * 验证用户安全密码
     */
    protected function validateUserPassword(): void
    {
        $userId = $this->data['user_id'];
        $password = $this->data['password'];

        // 这里应该调用用户模块的密码验证服务
        // 示例代码：
        // if (!UserService::verifyPassword($userId, $password)) {
        //     $this->addError('password', '安全密码错误');
        // }

        // 临时验证逻辑（实际项目中应该替换为真实的密码验证）
        if (strlen($password) < 6) {
            $this->addError('password', '安全密码长度不能少于6位');
        }
    }

    /**
     * 验证Google验证码
     */
    protected function validateGoogleCode(): void
    {
        $userId = $this->data['user_id'];
        $googleCode = $this->data['google_code'];

        // 验证格式
        if (!preg_match('/^\d{6}$/', $googleCode)) {
            $this->addError('google_code', 'Google验证码必须为6位数字');
            return;
        }

        // 这里应该调用Google验证码验证服务
        // 示例代码：
        // if (!GoogleAuthService::verify($userId, $googleCode)) {
        //     $this->addError('google_code', 'Google验证码错误');
        // }
    }

    /**
     * 验证用户资金余额
     */
    protected function validateUserBalance(): void
    {
        $userId = $this->data['user_id'];
        $appId = $this->data['transfer_app_id'];
        $amount = $this->data['amount'];

        // 获取应用配置
        $app = \App\Module\Transfer\Models\TransferApp::find($appId);
        if (!$app) {
            return;
        }

        // 计算内部金额
        $internalAmount = bcmul($amount, (string) $app->exchange_rate, 10);

        // 这里应该调用Fund模块验证余额
        // 示例代码：
        // if (!FundService::hasBalance($userId, $app->fund_id, $internalAmount)) {
        //     $this->addError('amount', '余额不足');
        // }

        // 验证最小转出金额
        $minAmount = '0.01';
        if (bccomp($amount, $minAmount, 10) < 0) {
            $this->addError('amount', "转出金额不能少于 {$minAmount}");
        }

        // 验证最大转出金额
        $maxAmount = '1000000.00';
        if (bccomp($amount, $maxAmount, 10) > 0) {
            $this->addError('amount', "转出金额不能超过 {$maxAmount}");
        }
    }

    /**
     * 验证转出权限
     */
    protected function validateTransferOutPermission(): void
    {
        if (!isset($this->data['transfer_app_id'])) {
            return;
        }

        $appId = $this->data['transfer_app_id'];
        
        // 获取应用配置
        $app = \App\Module\Transfer\Models\TransferApp::find($appId);
        if (!$app) {
            return;
        }

        // 检查应用是否支持转出
        if (!$app->supportsTransferOut()) {
            $this->addError('transfer_app_id', '该应用不支持转出操作');
        }

        // 检查应用是否启用
        if (!$app->is_enabled) {
            $this->addError('transfer_app_id', '应用已禁用');
        }
    }

    /**
     * 验证用户转出限制
     */
    protected function validateUserTransferLimits(): void
    {
        if (!isset($this->data['user_id']) || !isset($this->data['amount'])) {
            return;
        }

        $userId = $this->data['user_id'];
        $amount = $this->data['amount'];

        // 检查今日转出次数限制
        $todayCount = \App\Module\Transfer\Models\TransferOrder::where('user_id', $userId)
            ->where('type', \App\Module\Transfer\Enums\TransferType::OUT)
            ->whereDate('created_at', today())
            ->count();

        if ($todayCount >= 10) {
            $this->addError('user_id', '今日转出次数已达上限（10次）');
        }

        // 检查今日转出金额限制
        $todayAmount = \App\Module\Transfer\Models\TransferOrder::where('user_id', $userId)
            ->where('type', \App\Module\Transfer\Enums\TransferType::OUT)
            ->whereDate('created_at', today())
            ->sum('amount');

        $dailyLimit = '50000.00';
        $newTotal = bcadd((string) $todayAmount, $amount, 10);
        
        if (bccomp($newTotal, $dailyLimit, 10) > 0) {
            $this->addError('amount', "今日转出金额已达上限（{$dailyLimit}）");
        }
    }

    /**
     * 执行验证后的处理
     */
    protected function afterValidation(): void
    {
        // 验证转出权限
        $this->validateTransferOutPermission();

        // 验证用户转出限制
        $this->validateUserTransferLimits();

        // 格式化金额
        if (isset($this->data['amount'])) {
            $this->data['amount'] = number_format((float) $this->data['amount'], 10, '.', '');
        }

        // 清理回调数据
        if (isset($this->data['callback_data']) && is_array($this->data['callback_data'])) {
            $this->data['callback_data'] = array_filter($this->data['callback_data'], function ($value) {
                return $value !== null && $value !== '';
            });
        }
    }
}