<?php
namespace Api\Controller;
use Think\Controller;
use Com\WechatAuth;

class WechatController extends Controller{
    public function __construct(){
        parent::__construct();
    }
    //网页微信授权
    public function auth(){
        $appid = C('WX_APPID');
        $appsecret = C('WX_APPSECRET');
        $token = S("token");
        if ($token) {
            $auth = new WechatAuth($appid, $appsecret, $token);
        } else {
            $auth = new WechatAuth($appid, $appsecret);
            $token = $auth->getAccessToken();
            S('token',$token['access_token'],$token['expires_in']);
        }
        return $auth;
    }
    
    public function index(){
        $code = I('code');
        $imei = I('imei');
        $auth = $this->auth();
        if (empty($code)){
            $data = array('code'=>1,'msg'=>'code不能为空');
            $this->returnData($data);exit;
        }
        //获取微信授权后信息
        try{
            $accessInfo = $auth->getAccessToken('code',$code);
            //if (!isset($accessInfo['openid']) || !isset($accessInfo['unionid']) || !isset($accessInfo['access_token'])){
            if (!isset($accessInfo['openid']) || !isset($accessInfo['access_token'])){
                $data = array('code'=>1,'msg'=>'参数错误');
                echo json_encode($data);exit;
            }
            //获取微信授权后用户信息
            $wechatInfo = $auth->getOauthUserinfo($accessInfo['access_token'], $accessInfo['openid']);
            //$data = array('code'=>0,'msg'=>'', 'data'=>$wechatInfo);
            $emoji = new \Org\Util\Emoji();
            $saveData = array(
                'unionid'=>$wechatInfo['unionid'],
                'user_name'=>$emoji->emoji_unified_to_html($wechatInfo['nickname']),
                'user_sex'=>$wechatInfo['sex'],
                'user_icon'=>$wechatInfo['headimgurl'],
                'operate_dt'=>time(),
                'last_dt'=>time(),
            );
            $info = M('User')->where(array('unionid'=>$wechatInfo['unionid'],))->field('user_id,user_phone,user_name,user_level,user_sex,user_icon,user_city,user_province,user_birthdate,user_score,zan_notice,sys_notice,friend_notice,operate_dt,unionid,fbid')->find();
            if($info==NULL){
                $info = $this->addUser($saveData);
            }else{
                unset($saveData['operate_dt']);
                M('User')->where(array('user_id'=>$info['user_id'],))->save($saveData);
                $info = M('User')->where(array('user_id'=>$info['user_id']))->field('user_id,user_phone,user_name,user_level,user_sex,user_icon,user_city,user_province,user_birthdate,user_score,zan_notice,sys_notice,friend_notice,operate_dt,unionid,fbid,imei')->find();
            }
            $info = $this->getLevel($info);
            if (!empty($imei) && !empty($info['imei'])  && $imei!=$info['imei']){
                M('User')->where(array('user_id'=>$info['user_id']))->save(array('last_dt'=>time(),'imei'=>$imei,'is_login'=>1));
                $title = '已在另一地点登录，如非本人操作，请及时修改密码！';
                $data = json_encode(array('type'=>2,'msg'=>$title));
                $this->umengPush($info['access_token'], $data);
            }
            session('user_id', $info['user_id']);
            M('User')->where(array('user_id'=>$info['user_id']))->save(array('last_dt'=>time(),'is_login'=>1));
            
            //生成token
            $token = think_encrypt($info['user_id'].time());
            //获取老token，并使老token缓存的用户信息失效
            $oldToken = S('token_'.$info['user_id']);
            if($oldToken) {
                S('user_'.$oldToken, null);
            }
            //生成缓存信息
            S('token_'.$info['user_id'],$token, 604800);
            S('user_'.$token, json_encode($info), 604800);
            $info['token'] = $token;
            
            $info['oauth'] = '';
            if (!empty($info['unionid'])){
                $info['bind_wx'] = 1;
            }else{
                $info['bind_wx'] = 0;
            }
            if (!empty($info['fbid'])){
                $info['bind_fb'] = 1;
            }else{
                $info['bind_fb'] = 0;
            }
            unset($info['unionid']);
            unset($info['fbid']);
            $data = array('code'=>0,'msg'=>'','data'=>$info);
            $this->returnData($data);
        }catch (\Think\Exception $e){
            $data = array('code'=>1,'msg'=>'请求出错');
            $this->returnData($data);exit;
        }
    }
    
    private function returnData($data){
        header('Content-Type:application/json; charset=utf-8');
        header("Access-Control-Allow-Origin: *");
        exit(json_encode($data));
    }
    
    
    /**
     * 发送友盟推送消息
     * @param  integer  $uid   用户id
     * @param  string  $title  推送的标题
     * @param  integer $type   1：官方小秘书   2：我的评论
     * @return boolear       是否成功
     */
    public function umengPush($device_tokens, $title){
        // 导入友盟
        Vendor('Umeng.Umeng');
        // 自定义字段   根据实际环境分配；如果不用可以忽略
        $status=1;
        // 消息未读总数统计  根据实际环境获取未读的消息总数 此数量会显示在app图标右上角
        $count_number=1;
        $data=array(
            'key'=>'status',
            'value'=>"$status",
            'count_number'=>$count_number
        );
        // 判断device_token  64位表示为苹果 否则为安卓
        if(strlen($device_tokens)==64){
            $key=C('UMENG_IOS_APP_KEY');
            $timestamp=C('UMENG_IOS_SECRET');
            $umeng=new \Umeng($key, $timestamp);
            $umeng->sendIOSUnicast($data,$title,$device_tokens);
        }else{
            $key=C('UMENG_ANDROID_APP_KEY');
            $timestamp=C('UMENG_ANDROID_SECRET');
            $umeng=new \Umeng($key, $timestamp);
            $umeng->sendAndroidUnicast($data,$title,$device_tokens);
        }
        return true;
    }
}