<?php

/**
 * @author Any
 * @description KISS
 * @date 2021年6月7日
 * @version 1.0.0
 * 
 * _____LOG_____
 * 
 */
namespace app\modules\api\models;

use app\models\UserOauth;
use app\components\wechat\aes\WxBizDataCrypt;
use app\components\SysConst;
use app\components\FlashStorage;
use app\components\EncryptHelper;
use app\components\Utils;

class BindOauthWxmpForm extends ApiModel 
{
    public $code;
    public $encrypted_data;
    public $iv;
    
    public $code_expires;//code是否过期，0=否，1=是
    
    public $cx_mch_id;
    public $user_id;
    public $wechat_mp;    
    
    public function rules()
    {
        return [
            [['code', 'iv', 'encrypted_data', ], 'trim'],
            [['code', 'iv', 'encrypted_data', ], 'string'],
            [['code_expires', 'user_id'], 'integer'],
            [['code', 'iv', 'encrypted_data', 'cx_mch_id', 'user_id', 'wechat_mp'], 'required'],
        ];
    } 

    public function bind()
    {
        if(!$this->validate()){
            return $this->getModelError();
        }
        $res = FlashStorage::getCache("m{$this->cx_mch_id}_c{$this->code}");
        if($this->code_expires == 1 || $res === false){
            $res = $this->code2session($this->code);
            if($res['code'] != 0)
                return $res;          
            FlashStorage::setCache("m{$this->cx_mch_id}_c{$this->code}",$res,864000);
        } 

        $session_key = $res['data']['session_key'];
        $openid = $res['data']['openid'];
        $res = $this->decrypted_data($session_key);
        if($res['code'] != 0){
            return $res;
        }
        $decrypted_info = json_decode($res['data'], true);
        $openid = $openid ? $openid : $decrypted_info['openId'];
        $nickname = $decrypted_info['nickName'];
        $avatar_url = empty($decrypted_info['avatarUrl']) ?  User::DEFAULT_AVATAR_URL : $decrypted_info['avatarUrl'];
        $gender = $decrypted_info['gender'];
        $unionid = isset($decrypted_info['unionId']) ? $decrypted_info['unionId'] : '0';
        
        //用户是否存在
        $user_oauth = UserOauth::findOne([
            'cx_mch_id' => $this->cx_mch_id,
            'is_delete' => 0,
            'type' => SysConst::$cxOauthProviderWxmp,
            'openid' => $openid
        ]);
        if($user_oauth != null){
            /*if($user_oauth->user_id == $this->user_id){
                return $this->apiReturnSuccess("绑定成功");
            }
            $mobile = $user_oauth->user && !empty($user_oauth->user->mobile_phone) ? EncryptHelper::decryptMobilePhone($user_oauth->user->mobile_phone) : null;
            $account_name = $mobile  ? $mobile : ($user_oauth->user ? $user_oauth->user->username : "");
            if(strlen($account_name) != 0)
                $account_name = Utils::stringDesensitization ($account_name,2,-2);
            return $this->apiReturnError("绑定失败，此微信已绑定{$account_name}账号");*/
            $user_oauth->user_id = $this->user_id;
            $user_oauth->unionid = $unionid;
            $user_oauth->created_at = time();
            $user_oauth->nickname = $nickname;
            $user_oauth->avatar_url =  $avatar_url;
        }else{
            $user_oauth = new UserOauth();
            $user_oauth->cx_mch_id = $this->cx_mch_id;
            $user_oauth->type = SysConst::$cxOauthProviderWxmp;
            $user_oauth->user_id = $this->user_id;
            $user_oauth->openid = $openid;
            $user_oauth->unionid = $unionid;
            $user_oauth->is_delete = 0;
            $user_oauth->created_at = time();
            $user_oauth->nickname = $nickname;
            $user_oauth->avatar_url =  $avatar_url;
        }

        // 删除用户信息缓存
        $obj = new WindowsApiForm();
        $cache = $obj->getUserCacheName($this->user_id);
        foreach ($cache as $key=>$val){
            FlashStorage::deleteCache($val);
        }

        if(!$user_oauth->save()){
            return $this->getModelError($user_oauth);
        }        
        return $this->apiReturnSuccess("绑定成功");
    }
    
    
    /***
     * 用户数据解密
     */
    private function decrypted_data($session_key){
        $pc = new WxBizDataCrypt($this->wechat_mp->appId, $session_key);
        $errCode = $pc->decryptData($this->encrypted_data, $this->iv, $data );
        if ($errCode == 0) {
            return [
                'code' => 0,
                'msg' => 'success',
                'data' => $data
            ];
        } else {
            return [
                'code' => 1,
                'msg' => $errCode,
            ];
        }        
    }   

    private function code2session($code)
    {
        $api = "https://api.weixin.qq.com/sns/jscode2session?appid={$this->wechat_mp->appId}&secret={$this->wechat_mp->appSecret}&js_code={$code}&grant_type=authorization_code";
        $this->wechat_mp->curl->get($api);
        if($this->wechat_mp->curl->error_code != 0){
            return [
                'code' => 1,
                'msg' => "err_code:{$this->wechat_mp->curl->error_code}err_msg:{$this->wechat_mp->curl->error_msg}"
            ];
        }
        $resp = $this->wechat_mp->curl->response;
        $res = json_decode($resp, true);
        if(!isset($res['openid'])){
            return [
                'code' => 1,
                'msg' => isset($res['errmsg']) ? $res['errmsg'] : 'error'
            ];
        }
        return [
            'code' => 0,
            'msg' => 'ok',
            'data' => $res
        ];        
    }         
}