<?php

namespace app\api\controller;

use think\Db;
use think\Log;
use think\Exception;
use think\exception\HttpResponseException;
use app\common\Service\Pay\PayService;
use app\common\Service\Pay\PayOperService;
use app\common\Enum\ChannelEnum;
use app\common\Service\OrderService;
use app\common\model\Third as ThirdOauth;
use app\common\model\Order;
use app\common\model\pay\Index as PayModel;
use app\common\Enum\PayEnum;
use Yansongda\Pay\Pay as YansongdaPay;
use Psr\Http\Message\ResponseInterface;
/**
 * 支付接口
 */
class Pay extends Base
{
    protected $noNeedLogin = ['notify'];
    protected $noNeedRight = '*';

    public function _initialize()
    {
        parent::_initialize();
    }

     /**
     * 支付成功回调
     */
    public function notify()
    {
        Log::write('pay-notify-comein:');

        $payment = $this->request->param('payment');
        $platform = $this->request->param('platform');

        $payService = new PayService($payment, $platform);
        
        $result = $payService->notify(function ($data, $originData = []) use ($payment) {
            Log::write('pay-notify-data:' . json_encode($data));
            $out_trade_no = $data['out_trade_no'];

            // 查询 pay 交易记录
            $payModel = PayModel::where('pay_sn', $out_trade_no)->find();
            if (!$payModel || $payModel->status !=  PayEnum::PAY_STATUS_UNPAID) {
                // 订单不存在，或者订单已支付
                return YansongdaPay::$payment()->success();
            }

            Db::transaction(function () use ($payModel, $data, $originData, $payment) {
                $notify = [
                    'pay_sn' => $data['out_trade_no'],
                    'transaction_id' => $data['transaction_id'],
                    'notify_time' => $data['notify_time'],
                    'buyer_info' => $data['buyer_info'] ?? "",
                    'payment_json' => $originData ? json_encode($originData) : json_encode($data),
                    'pay_fee' => $data['pay_fee'],          // 微信的已经*100处理过了
                    'pay_type' => $payment              // 支付方式
                ];

                // pay 实例
                $payOper = new PayOperService($payModel->user_id);
                $payOper->notify($payModel, $notify);
            });

            return YansongdaPay::$payment()->success();
        });

        return $this->payResponse($result, $payment);
    }
       /**
     * 处理返回结果 tp5 不能直接 return YansongdaPay::$payment()->success()
     *
     * @param object|string $result
     * @param string|null $payment
     * @return void
     */
    private function payResponse($result = null, $payment = null)
    {
        if ($result instanceof ResponseInterface) {
            $content = $result->getBody()->getContents();
            $content = $payment == 'wechat' || $payment == 'douyin' ? json_decode($content, true) : $content;
            return response($content, 200, [], ($payment == 'wechat' || $payment == 'douyin' ? 'json' : ''));
        }

        return $result;
    }

    /**
     * 预支付订单接口
     * @return void
     */
    public function prepay()
    {

        $orderId = $this->request->post('orderId');
        $payment = $this->request->post('payment');
        // $openid = $this->request->post('openid', '');
        // $money = $this->request->post('money', 0);
        $logincode = $this->request->post('login_code', '');
        // $money = $money > 0 ? $money : 0;
        $platform = $this->request->header('platform');
        $userId = $this->auth->getUser()->id;
        // 获取订单实例
        $order = new Order();
        $order = $order->where('user_id', $userId)->where('id', $orderId)->find();
         
        if (!$order) {
            $this->error(__('No Results were found'));
        }

        // 验证订单状态
        if (!$order->canPayHandle()) {
            $this->error(__('订单状态不支持支付'));
        }


        // 验证支付类型
        if (!$payment || !in_array($payment, ['wechat', 'alipay', 'douyin'])) {
            $this->error('支付类型不能为空');
        }

        // 验证支付环境
        // if ($channel && !ChannelEnum::channelSupportsPayment($channel, $payment)) {
        //     $this->error('当前渠道不支持该支付方式');
        // }
       
        $payOper = new PayOperService($this->auth->getUser());
        $orderType = $order->type;
        $payModel = $payOper->{$payment}($order, $order->amount, $orderType);

        $order->save(['pay_type' =>$payment]);
        $order_data = [
            'order_id' => $order->id,
            'out_trade_no' => $payModel->pay_sn,
            'total_amount' => $payModel->pay_fee,      // 剩余支付金额
        ];
        // 微信公众号，小程序支付，必须有 openid
        if ($payment == 'wechat') {
            // 如果传了 code
            if (!empty($logincode)) {
                $json = (new \app\common\library\Wechat\Service())->getWechatSession($logincode);
                $openid = $json['openid'] ?? '';
                if(empty($openid)){
                    $this->error('未获取到openidid');
                }
                $order_data['payer']['openid'] = $openid;
            }else{
                if (in_array($platform, ['WechatOfficialAccount', 'WechatMiniProgram'])) {
                    if (isset($openid) && $openid) {
                        // 如果传的有 openid
                        $order_data['payer']['openid'] = $openid;
                    } else {
                        // 没有 openid 默认拿下单人的 openid
                        $oauth = ThirdOauth::where([
                            'user_id' => $order->user_id,
                            'platform' => $payment,
                            'apptype' => lcfirst(str_replace($payment, '', $platform))
                        ])->find();
    
                        $order_data['payer']['openid'] = $oauth ? $oauth->openid : '';
                    }
    
                    if (empty($order_data['payer']['openid'])) {
                        // 缺少 openid
                        $this->error('miss_openid', -1);
                    }
                }    
            }           
            $order_data['description'] = '商城订单支付';
        } else {
            $order_data['subject'] = '商城订单支付';
        }

        if($platform == ChannelEnum::CHANNEL_DOUYIN_MINI_PROGRAM){
            $order_data['out_order_no'] = $payModel->pay_sn;
        }
        // echo  "<pre>";
        // print_r(lcfirst(str_replace($payment, '', $platform)));
        // echo  "</pre>";die();
        // echo "<pre>";
        // print_r($order_data);
        // echo "</pre>";die();
        try {
            $payService = new PayService($payment, $platform);            
            $result = $payService->pay($order_data);            
        } catch (\Yansongda\Pay\Exception\Exception $e) {
            $this->error('支付失败' . (config('app_debug') ? "：" . $e->getMessage() : '，请重试'));
        } catch (HttpResponseException $e) {
            $data = $e->getResponse()->getData();
            $message = $data ? ($data['msg'] ?? '') : $e->getMessage();
            $this->error('支付失败' . (config('app_debug') ? "：" . $message : '，请重试'));
        } catch (\Exception $e) {
            // 捕获构造函数错误和其他异常
            $errorMessage = $e->getMessage();
            Log::error('PayService创建失败: ' . $errorMessage);
            $this->error('支付服务初始化失败' . (config('app_debug') ? "：" . $errorMessage : '，请重试'));
        }
        
        $this->success('', [
            'pay_data' => $result,
        ]);

    }

   
    /**
     * 处理余额混合支付
     * @param PayOperService $payOper
     * @param mixed $order
     * @param string $order_type
     * @param float $money
     * @return mixed
     */
    protected function handleBalanceMixedPayment($payOper, $order, $order_type, $money)
    {
        return Db::transaction(function () use ($payOper, $order, $order_type, $money) {
            // 加锁读订单
            $order = $order->lock(true)->find($order->id);

            // 余额支付
            $order = $payOper->money($order, $money, $order_type);

            return $order;
        });
    }

    /**
     * 处理纯余额支付
     * @param PayOperService $payOper
     * @param mixed $order
     * @param string $order_type
     * @return mixed
     * @throws Exception
     */
    protected function handleBalancePayment($payOper, $order, $order_type)
    {
        $order = Db::transaction(function () use ($payOper, $order, $order_type) {
            // 加锁读订单
            $order = $order->lock(true)->find($order->id);

            $order = $payOper->money($order, $order->remain_pay_fee, $order_type);

            return $order;
        });

        if ($order->status != $order::STATUS_PAID) {
            throw new Exception('订单支付失败');
        }
        
        return $order;
    }

    /**
     * 处理货到付款
     * @param PayOperService $payOper
     * @param mixed $order
     * @param string $order_type
     * @return mixed
     * @throws Exception
     */
    protected function handleOfflinePayment($payOper, $order, $order_type)
    {
        if (!isset($order->ext['offline_status']) || $order->ext['offline_status'] != 'enable') {
            throw new Exception('订单不支持货到付款');
        }

        return Db::transaction(function () use ($payOper, $order, $order_type) {
            // 加锁读订单
            $order = $order->lock(true)->find($order->id);

            $order = $payOper->offline($order, 0, $order_type);     // 增加 0 记录

            return $order;
        });
    }

    /**
     * 处理第三方支付（微信、支付宝）
     * @param PayOperService $payOper
     * @param mixed $order
     * @param string $order_type
     * @param string $payment
     * @param string $platform
     * @param string $channel
     * @param string $openid
     * @return mixed
     * @throws Exception
     */
    protected function handleThirdPartyPayment($payModel, $order, $payment, $platform, $openid)
    {
        $order_data = [
            'order_id' => $order->id,
            'out_trade_no' => $payModel->pay_sn,
            'total_amount' => $payModel->pay_fee,      // 剩余支付金额
        ];

        // 微信支付需要 openid
        if ($payment == 'wechat') {
            $this->handleWechatPaymentData($order_data, $platform, $openid, $order);
            $order_data['description'] = '商城订单支付';
        } else {
            $order_data['subject'] = '商城订单支付';
        }

        // 创建支付服务
        $payService = new PayService($payment, $platform);

        try {
            $result = $payService->pay($order_data);
        } catch (\Yansongda\Pay\Exception\Exception $e) {
            throw new Exception('支付失败' . (config('app_debug') ? "：" . $e->getMessage() : '，请重试'));
        } catch (HttpResponseException $e) {
            $data = $e->getResponse()->getData();
            $message = $data ? ($data['msg'] ?? '') : $e->getMessage();
            throw new Exception('支付失败' . (config('app_debug') ? "：" . $message : '，请重试'));
        }

        // APP 平台特殊处理
        if ($platform == 'App') {
            if ($payment == 'wechat') {
                // Yansongda\Supports\Collection，可当数组，可当字符串，这里不用处理
            } else {
                // Guzzle
                $result = $result->getBody()->getContents();
            }
        }

        return $result;
    }

    /**
     * 处理微信支付数据
     * @param array &$order_data
     * @param string $platform
     * @param string $openid
     * @param mixed $order
     * @throws Exception
     */
    protected function handleWechatPaymentData(&$order_data, $platform, $openid, $order)
    {
        // 微信公众号，小程序支付，必须有 openid
        if (in_array($platform, ['WechatOfficialAccount', 'WechatMiniProgram'])) {
            if (isset($openid) && $openid) {
                // 如果传的有 openid
                $order_data['payer']['openid'] = $openid;
            } else {
                // 没有 openid 默认拿下单人的 openid
                // 需要根据实际的第三方授权模型调整
                try {
                    $oauthModel = '\\app\\common\\model\\Third';
                    if (class_exists($oauthModel)) {
                        $oauth = $oauthModel::where([
                            'user_id' => $order->user_id,
                            'platform' => 'wechat',
                            'apptype' => lcfirst(str_replace('wechat', '', $platform))
                        ])->find();
                        $order_data['payer']['openid'] = $oauth ? $oauth->openid : '';
                    } else {
                        $order_data['payer']['openid'] = '';
                    }
                } catch (\Exception $e) {
                    $order_data['payer']['openid'] = '';
                }
            }

            if (empty($order_data['payer']['openid'])) {
                // 缺少 openid
                throw new Exception('miss_openid', -1);
            }
        }
    }

    
}