<?php

namespace app\NewReedaw\controller\app;

class Wechat extends Base{
    // reedaw的小程序信息
    private $app_id = 'wx9c0b7a436ada6d1e'; // 微信小程序的AppID
    private $app_secret = 'ed7cda5874f0eef3360e782a3db73c80'; // 微信小程序的AppSecret
    
    // ed7cda5874f0eef3360e782a3db73c80
    
    ################################################################接口################################################################
    ################################################################接口################################################################
    ################################################################接口################################################################
    /**
     * 处理微信登录
     *
     * @param string $code 微信登录凭证
     * @param string $encryptedData 加密的用户信息
     * @param string $iv 解密算法的初始向量
     * @return array
     */
    public function handleWechatLogin($code, $encryptedData, $iv)
    {
        // try {
            // 1. 通过code获取openid和session_key
            $sessionData = $this->getSessionKey($code);
            
            if (empty($sessionData['openid']) || empty($sessionData['session_key'])) {
                // throw new Exception('获取openid或session_key失败');
                // return false;
                // return $this->msg(10001);
                return ['code'=>10002,'msg'=>'获取openid或session_key失败'];
            }
            
            // 2. 解密用户信息
            $userInfo = $this->decryptData($encryptedData, $iv, $sessionData['session_key']);
            
            if(array_key_exists('phoneNumber',$userInfo)){
                return ['code'=>0,'msg'=>'seccess','data'=>$userInfo];
            }else{
                return ['code'=>10002,'msg'=>'解密用户信息失败'];
            }
            // if (empty($userInfo['phoneNumber'])) {
            //     // throw new Exception('获取手机号失败');
                
            // }else{
                
            // }

            // // 3. 保存或更新用户信息
            // $user = User::where('openid', $sessionData['openid'])->find();
            // if (!$user) {
            //     $user = new User();
            //     $user->openid = $sessionData['openid'];
            // }
            // $user->phone = $userInfo['phoneNumber'];
            // $user->save();

            // 返回成功信息
            // return ['code' => 0, 'msg' => '登录成功', 'data' => $user];
        // } catch (Exception $e) {
        //     // 返回错误信息
        //     return ['code' => 500, 'msg' => $e->getMessage()];
        // }
    }
    /**
     * 通过code获取openid和session_key
     *
     * @param string $code
     * @return array
     * @throws Exception
     */
    private function getSessionKey($code)
    {
        $url = "https://api.weixin.qq.com/sns/jscode2session?appid={$this->app_id}&secret={$this->app_secret}&js_code={$code}&grant_type=authorization_code";
        $result = file_get_contents($url);
        $data = json_decode($result, true);

        if (isset($data['openid']) && isset($data['session_key'])) {
            return $data;
        } else {
            return ['code'=>10002,'msg'=>'获取openid或session_key失败'];
        }
    }

    /**
     * 解密用户信息
     *
     * @param string $encryptedData
     * @param string $iv
     * @param string $sessionKey
     * @return array
     * @throws Exception
     */
    private function decryptData($encryptedData, $iv, $sessionKey)
    {
        // require_once 'wx_crypt/WXBizDataCrypt.php'; // 引入微信解密类
        // require_once env('root_path') . 'extend/wx_crypt/WXBizDataCrypt.php';
        // dump(ROOT_PATH . 'extend\wx_crypt\wxBizDataCrypt.php');
        require_once ROOT_PATH . 'extend\wx_crypt\wxBizDataCrypt.php';

        $pc = new \WXBizDataCrypt($this->app_id, $sessionKey);
        $errCode = $pc->decryptData($encryptedData, $iv, $data);

        if ($errCode == 0) {
            return json_decode($data, true);
        } else {
            return ['code'=>10002,'msg'=>'解密用户信息失败('.$errCode.')'];
            // throw new Exception('解密失败: ' . $errCode);
        }
    }
    

    // 注册
    

}