<?php

namespace app\api\controller;

use app\api\library\WnoticeHandle;
use app\common\controller\Api;
use think\Db;

/**
 * 首页接口
 */
class Wnotice extends Api
{

    const TOKEN = 'HL2021';
    protected $noNeedLogin = ['*'];
    protected $noNeedRight = ['*'];

    /**
     * 首页
     *
     */
    public function index()
    {
        $this->success('请求成功');
    }

    /**
     * 服务器鉴权
     */
    public function checkToken()
    {
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];

        $token = self::TOKEN;
        $tmpArr = array($token, $timestamp, $nonce);
        sort($tmpArr, SORT_STRING);
        $tmpStr = implode($tmpArr);
        $tmpStr = sha1($tmpStr);

        if ($tmpStr === $signature) {
            exit($_GET['echostr']);
        } else {
            exit($_GET['echostr']);
        }
    }

    /**
     * 获取access_token
     * @return mixed
     */
    private function _getAccessToken()
    {
        $appId = WnoticeHandle::APP_ID;
        $appKey = WnoticeHandle::APP_KEY;

        //获取access_token
        if (isset($_COOKIE['access_token']) && $_COOKIE['access_token']) {
            $accessToken = $_COOKIE['access_token'];
        } else {
            $url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' . $appId . '&secret=' . $appKey;
            $data = $this->post_json_data($url);
            $data = json_decode($data['result'], true);
            $accessToken = $data['access_token'];
            setcookie('access_token', $accessToken, 7200);
        }
        return $accessToken;
    }

    /**
     * 发送模板消息
     */
    public function sendNotice()
    {

        $accessToken = $this->_getAccessToken();
        //模板消息
        $json_template = $this->json_tempalte();
        $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" . $accessToken;
        $res = $this->post_json_data($url, $json_template);
        if ($res['code'] == 0) {
            return $res['result'];
        } else {
            return $res['result'];
        }
    }

    /**
     * 将模板消息json格式化
     */
    public function json_tempalte()
    {
        //模板消息
        $template = array(
            'touser' => 'obxsR6Noeygf9SAEI3-oiyj6ZpQ',  //用户openid
            'template_id' => "quyIvwP8blAEl7I8IgS48d5SczosAmNelvwzsIk-hc", //在公众号下配置的模板id
            'url' => "", //点击模板消息会跳转的链接
            /*"miniprogram" => array(  //跳小程序，小程序需与公众号绑定
                "appid" => "xiaochengxuappid12345",
                "pagepath" => "index?foo=bar"
            ),*/
            'topcolor' => "#FF0000",
            'data' => array()
        );

        return json_encode($template);
    }


    /*
    * post 发送JSON 格式数据
    * @param $url string URL
    * @param $data_string string 请求的具体内容
    * @return array
    *   code 状态码
    *   result 返回结果
    */
    public function post_json_data($url='', $data_string='') 
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/json; charset=utf-8',
                'Content-Length: ' . strlen($data_string))
        );
        ob_start();
        curl_exec($ch);
        $return_content = ob_get_contents();
        ob_end_clean();
        $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        return array('code'=>$return_code, 'result'=>$return_content);
    }

}