<?php

namespace addons\weixin\controller;

use app\common\library\Auth;
use think\Config;
use addons\weixin\library\WechatService;
use app\admin\model\weixin\User as WechatUser;
use app\admin\model\User;
use think\Hook;
use think\Cookie;
use think\Session;

/**
 * 微信公众号接口
 */
class Index extends \think\addons\Controller
{

    public $auth = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->auth = $auth = Auth::instance();

        //监听注册登录注销的事件
        Hook::add('user_login_successed', function ($user) use ($auth) {
            $expire = input('post.keeplogin') ? 30 * 86400 : 0;
            Cookie::set('uid', $user->id, $expire);
            Cookie::set('token', $auth->getToken(), $expire);
        });
    }

    /**
     * 微信公众号授权登录和jssdk分享演示
     * http://你的域名/addons/weixin
     */
    public function index()
    {
        //token
        $token = $this->request->server('HTTP_TOKEN', $this->request->request('token', \think\Cookie::get('token')));
        //初始化
        $this->auth->init($token);
        //检测是否登录
        if (!$this->auth->isLogin()) {
            $this->login();
        }
        return $this->fetch();
    }

    /**
     * 微信公众号服务
     * http://你的域名/addons/weixin/index/serve
     */
    public function serve()
    {
        ob_clean();
        return WechatService::serve();
    }

    /**
     * jssdk配置信息获取
     * http://你的域名/addons/weixin/index/config
     */
    public function config()
    {
        $wxModel = new \app\admin\model\weixin\Config();
        $wxConfigData = $wxModel->where([
            'group' => 'weixin', 'name' => ['in', 'share_title,share_img,share_synopsis,avatar']
        ])->select();
        $wxConfig = [];
        foreach ($wxConfigData as $val) {
            $wxConfig[$val['name']] = $val['value'];
        }
        $jsSdk = WechatService::jsSdk(urldecode($this->request->post('url')));
        return json(['code' => 1, 'data' => array_merge($wxConfig, $jsSdk)]);
    }

    /*
     * 微信公众号发起授权
     * http://你的域名/addons/weixin/index/login
     * */
    public function login()
    {
        $wechat_data = \app\admin\model\weixin\Config::where(['group' => 'weixin'])->select();
        foreach ($wechat_data as $k => $v) {
            $value = $v->toArray();
            if (in_array($value['type'], ['selects', 'checkbox', 'images', 'files'])) {
                $value['value'] = explode(',', $value['value']);
            }
            if ($value['type'] == 'array') {
                $value['value'] = (array)json_decode($value['value'], true);
            }
            $wechat[$value['name']] = $value['value'];
        }
        $return_url = "http://" . $_SERVER['HTTP_HOST'] . "/addons/weixin/index/auth";
        $redirect_uri = urlencode($return_url);
        $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$wechat['appid']}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect";
        header('location:' . $url);
        exit();
    }

    /**
     * 公众号授权回调登陆
     * http://你的域名/addons/weixin/index/auth
     */
    public function auth()
    {
        header('Content-Type: text/html;charset=utf-8');
        header('Access-Control-Allow-Origin:*'); // *代表允许任何网址请求
        header('Access-Control-Allow-Methods:POST,GET,OPTIONS,DELETE'); // 允许请求的类型
        header('Access-Control-Allow-Credentials: true'); // 设置是否允许发送 cookies
        header('Access-Control-Allow-Headers: Content-Type,Content-Length,Accept-Encoding,X-Requested-with, Origin');
        $code = $this->request->param('code');
        $tempcodeModel = new \app\common\model\TempCode();
        $openid = $tempcodeModel->where(["code"=>$code])->value("openid");
        if(!$openid) {
            $wxModel = new \app\admin\model\weixin\Config();
            $wxConfigData = $wxModel->where([
                'group' => 'weixin', 'name' => ['in', 'appid,appsecret']
            ])->select();
            $wxConfig = [];
            foreach ($wxConfigData as $val) {
                $wxConfig[$val['name']] = $val['value'];
            }
            $oauth2Url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$wxConfig['appid']."&secret=".$wxConfig['appsecret']."&code=$code&grant_type=authorization_code";
            $oauth2 = $this->getJson($oauth2Url);
            // 获得 access_token 和openid
            $access_token = $oauth2["access_token"];
            $openid = $oauth2['openid'];
            $tempcodeModel->where(["openid"=>$openid])->delete();
            $tempcodeModel->insert(["code"=>$code,"openid"=>$openid,"create_time"=>time()]);
        }

        $get_user_info_url = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN";


        try {
            $wechatInfo = $this->getJson($get_user_info_url);
        } catch (\Exception $e) {
            $this->error('授权失败', '', ['message' => $e->getMessage(), 'line' => $e->getLine()]);
        }

        //授权成功后
        $uid = WechatUser::onWechatOauthAfter($wechatInfo, 0, 0);

        //登录
        $ret = $this->auth->direct($uid);
        if ($ret) {
            $this->success('授权登录成功', url('addons/weixin/index'));
        } else {
            $this->error($this->auth->getError());
        }
    }
    private function getJson($url){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($ch);
        curl_close($ch);
        return json_decode($output, true);
    }
}