<?php

namespace app\api\controller;

use DOMDocument;
use wx\offiaccount\Event;
use wx\offiaccount\msg\ResponseMsg;
use app\model\Employee;
use think\facade\Cache;

/**
 * 微信事件接受类
 */
class WxEventPush
{
    public function index()
    {
        $signature = $_GET['signature'];
        $timestamp = $_GET['timestamp'];
        $nonce = $_GET['nonce'];
        $token = config('app.official_token');
        $encodingAesKey = config('app.official_encodingAesKey');
        $appId = config('app.official_appid');
        $eventObj = new Event($token, $encodingAesKey, $appId);
        // token验证
        if (isset($_GET["echostr"])) {
            if ($eventObj->checkToken($token, $signature, $timestamp, $nonce)) {
                echo $_GET["echostr"];
                exit;
            }
        }

        // // 消息体加密
        $msgSignature = $_GET['msg_signature'];

        // 推送消息内容获取
        $postXml = file_get_contents('php://input');

        $rs = $eventObj->decryptMsg($msgSignature, $timestamp, $nonce, $postXml, $msg);
        if ($rs !== 0) {
            echo 'success';
            trace('消息内容解析失败：' . $postXml, "error");
            exit;
        }
        $xml = new DOMDocument();
        $xml->loadXML($msg);
        $msgType = $xml->getElementsByTagName('MsgType')->item(0)->nodeValue;

        $rs = null;
        switch ($msgType) {
            case "event":
                $event = $xml->getElementsByTagName('Event')->item(0)->nodeValue;
                $event = strtolower($event);
                $method = $event . 'Event';
                // 接受事件推送
                if (method_exists($this, $method)) {
                    $rs = $this->$method($xml);
                }

                break;
            default:
                // 接受消息推送
                $rs = $this->$msgType($xml);
                break;
        }
        if ($rs === null) {
            echo 'success';
            exit;
        } else {
            echo $rs;
            exit;
        }
    }

    /**
     * 订阅（关注公众号或扫码关注公众号）
     */
    private function subscribeEvent($xml)
    {
        $fromUserName = $xml->getElementsByTagName('FromUserName')->item(0)->nodeValue;
        $toUserName = $xml->getElementsByTagName('ToUserName')->item(0)->nodeValue;

        // 获取key值
        // $key = $xml->getElementsByTagName('EventKey')->item(0)->nodeValue;

        // 更新用户信息
        $this->setUserInfo($fromUserName);
        // if ($key == '') {   // 如果是用户关注公众号
        $textData = [
            'ToUserName' => $fromUserName,
            'FromUserName' => $toUserName,
            'MsgType' => 'text',
            'Content' => 'Hello！[握手]
欢迎加入志远装饰大家庭！

①找客户→数十种裂变工具[强]
②聊客户→各维度沟通方案[强]
③签客户→定制化签单工具[强]
④跟客户→云CRM精准跟客[强]

通过小程序，我们为您提供一套完整的装企营销获客管理体系。[爱心][爱心][爱心]'
        ];
        $msg = new ResponseMsg();
        return $msg->responseText($textData);
        // } else {    // 如果是识别二维码
        //     // 用户绑定公司
        //     list($keyName, $method, $val) = explode('_', $key);
        //     if (method_exists($this, $method)) {
        //         return $this->$method($val, $toUserName, $fromUserName);
        //     }
        // }
    }

    /**
     * 取消订阅
     */
    private function unsubscribeEvent($xml)
    {
        $openid = $xml->getElementsByTagName('FromUserName')->item(0)->nodeValue;
        // 更新用户是否关注公众号
        Employee::where([['official_openid', '=', $openid]])->update(['official_openid'=>'']);
    }

    /**
     * 用户已关注时的事件推送(扫二维码)
     */
    private function scanEvent($xml)
    {
        $fromUserName = $xml->getElementsByTagName('FromUserName')->item(0)->nodeValue;
        $toUserName = $xml->getElementsByTagName('ToUserName')->item(0)->nodeValue;
        // 消息发送对象
        $key = $xml->getElementsByTagName('EventKey')->item(0)->nodeValue;
        // 是否是通过扫员工二维码绑定
        list($method, $val) = explode('_', $key);
        if (method_exists($this, $method)) {
            return $this->$method($val, $toUserName, $fromUserName);
        }
    }

    /**
     * 上报地理位置事件
     */
    private function locationEvent($xml)
    {
        $fromUserName = $xml->getElementsByTagName('FromUserName')->item(0)->nodeValue;
        $lat = $xml->getElementsByTagName('Latitude')->item(0)->nodeValue;
        $lng = $xml->getElementsByTagName('Longitude')->item(0)->nodeValue;
        // 更新用户是否关注公众号

    }

    /**
     * 点击菜单拉取消息时的事件推送
     */
    private function clickEvent($xml)
    {
        $fromUserName = $xml->getElementsByTagName('FromUserName')->item(0)->nodeValue;
        $toUserName = $xml->getElementsByTagName('ToUserName')->item(0)->nodeValue;
        // 消息发送对象
        $method = $xml->getElementsByTagName('EventKey')->item(0)->nodeValue;
        return $this->$method($toUserName, $fromUserName);
    }

    /**
     * 点击菜单跳转链接时的事件推送
     */
    private function viewEvent($xml)
    {
    }

    /**
     * 模板消息发送事件
     */
    private function templatesendjobfinish($xml){
        $fromUserName = $xml->getElementsByTagName('FromUserName')->item(0)->nodeValue;
        $status = $xml->getElementsByTagName('Statuss')->item(0)->nodeValue;
        trace('fromUserName:'.$fromUserName,'debug');
        trace('status:'.$status,'debug');
    }


    /**
     * 文本消息
     */
    private function text($xml)
    {
    }

    /**
     * 语音消息
     */
    private function voice($xml)
    {
    }

    /**
     * 视频消息
     */
    private function video($xml)
    {
    }

    /**
     * 小视频消息
     */
    private function shortvideo($xml)
    {
    }

    /**
     * 地理位置消息
     */
    private function location($xml)
    {
    }


    /**
     * 获取用户信息
     */
    private function setUserInfo($openid)
    {
        // 通过openid获取微信信息和unionid
        if (!$accessToken = Cache::get('zqxg_offi_access_token')) {
            $accessToken = getAccessToken(config('app.official_appid'), config('app.official_secret'));
            Cache::set('zqxg_offi_access_token', $accessToken, 7100);
        }
        $getUserInfoUrl = 'https://api.weixin.qq.com/cgi-bin/user/info?access_token=' . $accessToken . '&openid=' . $openid . '&lang=zh_CN';
        $data = curl($getUserInfoUrl);
        $data = json_decode($data, true);
        if (isset($data['errcode']) || empty($data['openid'])) {
            trace('消息内容解析失败：' . json_encode($data), "error");
            return null;
        }

        // 更新official_openid
        Employee::where([['unionid', '=', $data['unionid']]])->update(['official_openid'=>$openid]);
    }
}