<?php

namespace App\Service\Weixin;

use App\Service\Service;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Redis;

class WeixinService extends Service
{
    public $appid = '';
    public $secret = '';
    const ACCESS_URL = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s';
    const KEY = '';

    const STABLE_TOKEN_URL = 'https://api.weixin.qq.com/cgi-bin/stable_token'; // 稳定版接口
    const KEY_STABLE = 'weixinsupplymarketing';

    public function __construct()
    {
        $this->appid = config("wx_msg.f_appid");
        $this->secret = config("wx_msg.f_appSecret");
    }

    public function getToken(){
        $token_key = self::KEY.'_'.'token';
        $token = Redis::get($token_key);
        if(! $token){
            $url = sprintf(self::ACCESS_URL,$this->appid, $this->secret);
            $res = $this->curlOpen($url);
            $res = json_decode($res,true);
            if(isset($res['errmsg'])) return [false,$res['errmsg']];
            if(!isset($res['access_token'])) return [false,'request error'];
            $token = $res['access_token'];
            $expire_time = $res['expires_in']-300;
            Redis::set($token_key,$token);
            Redis::expire($token_key, $expire_time);
            return [true,$token];
        }
        return [true,$token];
    }

    public function getTokenSTABLE() {
        $token_key = self::KEY_STABLE . '_token';
        $token = Redis::get($token_key);

        // 缓存存在且有效
        if ($token) return [true, $token];

        // 构建 POST 请求体
        $postData = json_encode([
            'grant_type' => 'client_credential',
            'appid' => $this->appid,
            'secret' => $this->secret,
            // 可选：'force_refresh' => true 强制刷新
        ]);

        list($status, $res) = $this->post_helper(self::STABLE_TOKEN_URL, $postData);
        if(! $status) return [false, $res];

        // 错误处理
        if (isset($res['errcode']) && $res['errcode'] != 0) return [false, "{$res['errcode']}: {$res['errmsg']}"];
        if (empty($res['access_token']))  return [false, 'access_token missing'];

        // 缓存 Token（有效期7200秒，提前300秒刷新）
        $token = $res['access_token'];
        $expire = $res['expires_in'] - 300; // 实际6900秒(1小时55分)
        Redis::setex($token_key, $expire, $token);

        return [true, $token];
    }

    public function setWebHook($data){
//        file_put_contents('22.txt',json_encode($data));
        $uri = isset($data['uri']) ? $data['uri'] : '';
        $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=%s&redirect_uri=%s&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
        $param = isset($data['param']) ? $data['param'] : '';
        $redirect_uri = urlencode('https://xlkjapi.qingyaokeji.com/wxapi/getUnionid?uri='.$uri.'&param='.$param);
        $url = sprintf($url,$this->appid,$redirect_uri);
        header("Location:".$url);exit;
        echo 'ok';die;
    }

    public function getUnionid($data){
//        file_put_contents('22.txt',date('YmdHis').json_encode($data));
//        echo $data['code'];

        if(isset($data['code'])) {
            list($status,$openid) = $this->getOpenid($data);
//            file_put_contents('222.txt',date('YmdHis').json_encode($openid));
//            Log::channel('apiLog')->info('request', ['param' => $openid]);
            if(!$status) return [false,$openid];
            $uri = $data['uri'];
            $openid = $openid['openid'];
            $param = isset($data['param']) ? $data['param'] : '';
            $url = 'https://xlkj.qingyaokeji.com/#/wxGet?uri='.$uri.'&openid='.$openid.'&param='.$param;
            header('Location:'.$url);exit();
        }
    }

    public function getOpenid($data){
        if(empty($data['code'])) return [false, 'code不能为空'];
        $code = $data['code'];
        $url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=%s&secret=%s&code=%s&grant_type=authorization_code';
        $url = sprintf($url,$this->appid,$this->secret,$code);
        $res = $this->curlOpen($url);
        $res = json_decode($res,true);
        if(!isset($res['openid'])) return [false,$res['errmsg']??'request error'];
        $openid = $res['openid'];
        return [true,['openid' => $openid]];
    }
}