<?php

namespace support\auth;

use EasyWeChat\MiniApp\Application;
use support\exception\BusinessException;

class Weixin
{

    public $app;
    public $config;

    public function __construct()
    {
        $this->config = [
            'app_id' => '',
            'secret' => '',
            'response_type' => 'array',
            'log' => [
                'level' => 'debug',
                'file' => __DIR__ . '/wechat.log',
            ],
        ];
        $this->app = new Application($this->config);
    }

    public function appId()
    {
        return $this->config['app_id'];
    }

    public function nickname()
    {
        return '微信用户' . time() . rand(1, 100);
    }

    public function avatar()
    {
        return '/image/avatar.jpg';
    }

    public function login($code)
    {
        $result = $this->app->getUtils()->codeToSession($code);
        if (isset($result['openid'])) {
            return $result;
        }
        throw new BusinessException('登录失败', 500);
    }

    public function getPhoneNumber($code, $iv, $encryptedData)
    {
        $utils = $this->app->getUtils();
        $response = $utils->codeToSession($code);
        $session = $utils->decryptSession($response['session_key'], $iv, $encryptedData);
        if (empty($session['phoneNumber'])) {
            throw new BusinessException('获取手机号失败', 500);
        }
        return $session['phoneNumber'];
    }

}