<?php

namespace app\common\Service\Pay\Provider;

use think\Log;
use think\Exception;
use think\exception\HttpResponseException;
use Yansongda\Pay\Pay;
use app\common\Enum\ChannelEnum;

/**
 * 抖音支付提供器
 */
class Douyin extends Base
{


    /**
     * 构造函数
     * @param mixed $payService
     * @param string $platform
     * @param string $channel
     */
    public function __construct($payService, $platform = null, $channel = null) 
    {
        parent::__construct($payService, $platform, $channel);
    }

    /**
     * 抖音支付
     * @param array $order
     * @param array $config
     * @return array
     */
    public function pay($order, $config = []) 
    {
        $this->init('douyin', $config);
        // 按照抖音支付API要求构建订单参数
        $orderData = [
            'out_order_no' => $order['out_order_no'] ?? $order['out_trade_no'],
            'total_amount' => intval(bcmul((string)$order['total_amount'], '100')), // 抖音支付金额单位为分
            'subject' => $order['subject'] ?? '商品支付',
            'body' => $order['body'] ?? '商品支付',
            'valid_time' => $config['valid_time'] ?? 600, // 默认10分钟
        ];

        // 添加可选参数
        if (isset($order['cp_extra'])) {
            $orderData['cp_extra'] = $order['cp_extra'];
        }
        
        if (isset($config['disable_msg'])) {
            $orderData['disable_msg'] = $config['disable_msg'];
        }
        
        if (isset($config['msg_page'])) {
            $orderData['msg_page'] = $config['msg_page'];
        }
        // 获取支付方法
        $method = $this->getMethod('douyin');
    
        // 调用 Yansongda\Pay 进行支付
        $result = Pay::douyin()->$method($orderData);

        Log::write('抖音支付预下单响应：' . json_encode($result->toArray(), JSON_UNESCAPED_UNICODE));

        return $result;
    }

    /**
     * 转账功能（抖音支付暂不支持）
     * @param array $payload
     * @param array $config
     * @return array
     */
    public function transfer($payload, $config = [])
    {
        throw new Exception('抖音支付暂不支持转账功能');
    }

    /**
     * 支付回调处理
     * @param callable $callback
     * @param array $config
     * @return string
     */
    public function notify($callback, $config = [])
    {
        $this->init('douyin', $config);
        
        try {
            // 使用 Yansongda\Pay 处理回调验签
            $data = Pay::douyin()->callback();
            
            Log::write('抖音支付回调原始数据：' . json_encode($data, JSON_UNESCAPED_UNICODE));
            
            // 处理支付成功回调
            if ($data['type'] === 'payment') {
                // 格式化数据为统一格式
                
                $arrMsg = json_decode($data['msg'], true);
              
                $callbackData = [
                    'out_trade_no' => $arrMsg['cp_orderno'] ?? '',
                    'transaction_id' => $arrMsg['order_id'] ?? '',
                    'total_amount' => $arrMsg['total_amount'] ?? 0,
                    'pay_fee' => $arrMsg['total_amount'] ?? 0, // 抖音支付金额单位为分，这里保持原样
                    'notify_time' => date('Y-m-d H:i:s'),
                    // 'buyer_info' => $data['buyer_info'] ?? '',
                    // 'cp_extra' => $data['cp_extra'] ?? ''
                ];

                $result = $callback($callbackData, $data);
                return $result;
            }

            Log::error('抖音支付回调类型不支持: ' . ($data['type'] ?? 'unknown'));
            return 'fail';

        } catch (HttpResponseException $e) {
            $data = $e->getResponse()->getData();
            $message = $data ? ($data['msg'] ?? '') : $e->getMessage();
            $this->logPayment('抖音支付回调HttpResponseException', ['error' => $message], 'error');
            return 'fail';
        } catch (\Exception $e) {
            $this->logPayment('抖音支付回调异常', ['error' => $e->getMessage()], 'error');
            return 'fail';
        }
    }

    /**
     * 退款
     * @param array $order_data
     * @param array $config
     * @return array
     */
    public function refund($order_data, $config = [])
    {
        $this->init('douyin', $config);

        // 构建退款参数
        $refundData = [
            'out_order_no' => $order_data['out_trade_no'],
            'out_refund_no' => $order_data['out_refund_no'],
            'refund_amount' => intval($order_data['refund_amount']), // 抖音退款金额单位为分
            'reason' => $order_data['reason'] ?? '用户申请退款',
        ];

        // 如果有回调地址配置
        if (isset($config['notify_url'])) {
            $refundData['notify_url'] = $config['notify_url'];
        }

        // 调用 Yansongda\Pay 进行退款
        $result = Pay::douyin()->refund($refundData);

        Log::write('抖音退款响应：' . json_encode($result->toArray(), JSON_UNESCAPED_UNICODE));

        return $result;
    }

    /**
     * 退款回调处理
     * @param callable $callback
     * @param array $config
     * @return string
     */
    public function notifyRefund($callback, $config = [])
    {
        $this->init('douyin', $config);
        
        try {
            // 使用 Yansongda\Pay 处理退款回调验签
            $data = Pay::douyin()->callback();
            
            Log::write('抖音退款回调原始数据：' . json_encode($data, JSON_UNESCAPED_UNICODE));
            
            // 处理退款成功回调
            if ($data['type'] === 'refund' && $data['msg'] === 'success') {
                $result = $callback($data, $data);
                return $result;
            }

            Log::error('抖音退款回调类型不支持: ' . ($data['type'] ?? 'unknown'));
            return 'fail';

        } catch (HttpResponseException $e) {
            $data = $e->getResponse()->getData();
            $message = $data ? ($data['msg'] ?? '') : $e->getMessage();
            $this->logPayment('抖音退款回调HttpResponseException', ['error' => $message], 'error');
            return 'fail';
        } catch (\Exception $e) {
            $this->logPayment('抖音退款回调异常', ['error' => $e->getMessage()], 'error');
            return 'fail';
        }
    }

    /**
     * 格式化支付参数
     * @param array $config
     * @param array $data
     * @param string $type
     * @return array
     */
    protected function formatConfig($config, $data = [], $type = 'normal')
    {
        // 设置抖音支付的基本配置
        $config['app_id'] = $data['app_id'] ?? '';
        $config['secret'] = $data['secret'] ?? $data['salt'] ?? '';
        
        // 设置回调URL
        $platform = $this->platform ?? 'DouyinMiniProgram';
        $config['notify_url'] = request()->domain() . '/api/pay/notify/payment/douyin/platform/' . $platform;
        
        // 设置抖音支付网关（沙盒和生产环境）
        if (isset($config['sandbox']) && $config['sandbox']) {
            $config['mode'] = Pay::MODE_SANDBOX;
        } else {
            $config['mode'] = Pay::MODE_NORMAL;
        }

        return $config;
    }
}