<?php
    /**
     *  增加用户，对于程序设计，走的是修改逻辑
     */

    include "Common/JsonResponse.php";
    include "Common/mysqlHelper.php";
    include "Common/WechatHelper.php";
    include "Common/Encrypter.php";

    // 验证注册通道
    isStopSign();
    // 头像，姓名必填
    if (!isset($_POST['realname']) || !isset($_POST['mediaId'])) {
        JsonResponse::error('姓名或照片不能为空');
    }
    // 坐标不能为空
    if (!isset($_POST['latitude']) || !isset($_POST['longitude'])) {
        JsonResponse::error('用户坐标不能为空');
    }
    // 登录验证,验证cookie是否有openid，没有前端走微信openid获取流程
    if (!isset($_COOKIE['openid'])) {
        JsonResponse::error('进入姿势不对?');
    } 
    // 年会签到地址
    $config = include('Common/config.php');
    $partyLat = $config['latitude'];
    $partyLng = $config['longitude'];
    $distance = getDistance($partyLng, $partyLat, $_POST['longitude'], $_POST['latitude']);
    // 签掉距离不能大于200m,配置文件设置
    if ($distance > $config['distance']) {
        JsonResponse::error('不在签到范围内');
    }
    // 姓名唯一
    $realname = $_POST['realname'];
    $mysql = new mysqlHelper();
    $data = $mysql->fetch("SELECT id FROM user WHERE realname = ?", [ $realname ]);
    if ($data) {
        JsonResponse::error("Hello {$_POST['realname']} ，你的姓名重复了");
    }
    // 获取头像数据，从微信临时素材图片中。
    $wechat = new WechatHelper();
    $img = $wechat->getMedia($_POST['mediaId']);
    
    // 保存图片
    $filename = time() . rand(1000,9999) . ".jpg";
    $tarfilename = "/party/upload/" .$filename;
    $dir = str_replace('\\','/',realpath(dirname(__FILE__).'/'));
    $dir = rtrim($dir, '/party/phpapi/');
    $fp = fopen($dir . $tarfilename, "w");
    fwrite($fp, $img);
    fclose($fp);

    // 组装新增用户需要的数据
    $params[] = $_POST['realname'];
    $params[] = 'http://' . $_SERVER['SERVER_NAME'] . $tarfilename;
    // 这里openid解密
    $enctypt = new Encrypter();
    $params[] = $enctypt->decrypt($_COOKIE['openid']);
    $time = time();
    // pdo保存数据
    $updateSql = "UPDATE user SET realname = ?, headimg = ?, `status` = 1, created = {$time} WHERE openid = ?;";
    $rowCount = $mysql->update($updateSql, $params);
    if ($rowCount) {
        JsonResponse::result(['distance' => $distance]);
    } else {
        JsonResponse::error('报名失败');
    }


    function rad($dis)
    {
        return round($dis * (3.1415926535898 / 180), 6);
    }
    // 计算距离
    function getDistance($lat1, $lng1, $lat2, $lng2)
    {
        $lat1 = round($lat1, 6);
        $lng1 = round($lng1, 6);
        $lat2 = round($lat2, 6);
        $lng2 = round($lng2, 6);
        $radLat1 = rad($lat1);
        $radLat2 = rad($lat2);
        $a = $radLat1 - $radLat2;
        $b = rad($lng1) - rad($lng2);
        $s = 2 * asin(sqrt(pow(sin($a / 2), 2) + cos($radLat1) * cos($radLat2) * pow(sin($b / 2), 2)));
        $s = round($s * 6378137, 0);
        return $s;
    }

    // 验证注册通道是否关闭
    function isStopSign()
    {
        $mysql = new mysqlHelper();

        $data = $mysql->fetch("SELECT `value` FROM `setting` WHERE `key` = 'isStopSign' AND  `value` = 1");
        if ($data) {
            JsonResponse::error("注册通道已经关闭，自己人联系颖慧");
        }
    }