<?php
/**
 * 公共函数文件
 */

//
/**
 * 删除目录以及其下的文件
 * @param $directory
 * @return bool
 */
function removeDir($directory)
{
    if (false == is_dir($directory)) {
        return false;
    }

    $handle = opendir($directory);
    while (false !== ($file = readdir($handle))) {
        if ('.' != $file && '..' != $file) {
            is_dir("$directory/$file") ? removeDir("$directory/$file") : @unlink("$directory/$file");
        }
    }

    if (readdir($handle) == false) {
        closedir($handle);
        rmdir($directory);
    }

    return true;
}

/**
 * 功能：生成二维码
 * @param string $qrData 手机扫描后要跳转的网址
 * @param string $qrLevel 默认纠错比例 分为L、M、Q、H四个等级，H代表最高纠错能力
 * @param int $qrSize 二维码图大小，1－10可选，数字越大图片尺寸越大
 * @param string $savePath 图片存储路径
 * @param string $savePrefix 图片名称前缀
 * @return mixed
 */
function createQRcode($savePath, $qrData = 'PHP QR Code :)', $qrLevel = 'L', $qrSize = 4, $savePrefix = 'qrcode')
{
    if (!isset($savePath)) return '';
    //设置生成png图片的路径
    $PNG_TEMP_DIR = $savePath;

    //检测并创建生成文件夹
    if (!file_exists($PNG_TEMP_DIR)) {
        mkdir($PNG_TEMP_DIR);
    }
    $filename = $PNG_TEMP_DIR . 'test.png';
    $errorCorrectionLevel = 'L';
    if (isset($qrLevel) && in_array($qrLevel, ['L', 'M', 'Q', 'H'])) {
        $errorCorrectionLevel = $qrLevel;
    }
    $matrixPointSize = 4;
    if (isset($qrSize)) {
        $matrixPointSize = min(max((int)$qrSize, 1), 10);
    }
    if (isset($qrData)) {
        if (trim($qrData) == '') {
            die('data cannot be empty!');
        }
        //生成文件名 文件路径+图片名字前缀+md5(名称)+.png
        $filename = $PNG_TEMP_DIR . $savePrefix . md5($qrData . '|' . $errorCorrectionLevel . '|' . $matrixPointSize) . '.png';
        //开始生成
        \PHPQRCode\QRcode::png($qrData, $filename, $errorCorrectionLevel, $matrixPointSize, 2);
    } else {
        //默认生成
        \PHPQRCode\QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);
    }
    if (file_exists($PNG_TEMP_DIR . basename($filename)))
        return basename($filename);
    else
        return FALSE;
}

// 二维码
function qrCode()
{
    $savePath = __DIR__ . '/../public/qrcode/';
    $webPath = '/qrcode/';
    $qrData = 'http://www.cnblogs.com/';
    $qrLevel = 'H';
    $qrSize = '8';
    $savePrefix = 'jxjy';

    $pic = '';
    if($filename = createQRcode($savePath, $qrData, $qrLevel, $qrSize, $savePrefix)){
        $pic = $webPath . $filename;
    }

    return $pic;
}

/**
 *  调用远程接口
 */
function callRemoteApi($api,$param){

    $timestamp = time();
    $sign = sign($param);

    $url = config('game_backstage_host').$api.'?ts='.$timestamp.'&sign='.$sign;
//         $data = json_encode($param);

    $res = curl_get($url,$param);
    // $res = json_decode($res,true);

    return $res ? json_decode($res, true): false;
}

/**
 * 生成簽名
 * @param array $param
 * @return string
 */
function sign($param){
    if(!is_array($param)) return false;
    $sign = '';
    $timestamp = time();
    $param = array_merge($param,['ts'=>$timestamp, 'AppId' => config('app_id')]);

    foreach ($param as $v) {
        $allValues[] = $v;
    }

    sort($allValues, SORT_STRING);
    foreach ($allValues as $item) {
        $sign .= sprintf("%s;",$item);
    }
    $sign = md5(rtrim($sign,';;'));

    return $sign;

}

/**
 * 获取GET请求
 * @param $url
 * @param array $params
 * @param int $timeout
 * @return mixed
 */
function curl_get($url, array $params = [], $timeout = 5)
{
    if($params && is_array($params)){
        $p='';
        foreach($params as $key => $value){
            $p = $p.$key.'='.$value.'&';
        }

        if(preg_match('/\?[\d\D]+/',$url)){
            $p = '&'.$p;
        }else if(preg_match('/\?$/',$url)){
            $p = $p;
        }else{
            $p = '?'.$p;
        }

        $p = preg_replace('/&$/','',$p);
        $url = $url.$p;
    }
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    \think\Log::record(sprintf("\n[url]\t%s\n[body]\t%s",$url,json_encode($params)),'platform_api');

    $result = curl_exec($ch);
    if($result === false) {
        \think\Log::record('Curl error: ' . curl_error($ch), 'platform_api');
    } else {
        \think\Log::record('Curl success: ' . $result, 'platform_api');
    }

    curl_close($ch);

    return $result;
}

/**
 * 获取POST请求
 * @param $url
 * @param array $data
 * @param $timeout
 * @return mixed
 */
function curl_post($url, $data, $timeout = 5) {

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            // "Content-Type: application/json; charset=utf-8",
            "Content-Length: " . strlen($data))
    );
    $res = curl_exec($ch);
    curl_close($ch);
    return $res;

}

/**
 * 返回json结果集
 * @param  int    $code [description] 状态码
 * @param  string $msg  [description] 提示信息
 * @param  array  $data [description] 数据集
 * @param  array  $to_json [description] 是否转json
 * @return [type]       [description] json集合
 */
function resultJson(int $code, string $msg, array $data = [], bool $to_json = false)
{
    $data_arr = ['code' => $code, 'msg' => $msg, 'data' => $data];
    $result = $to_json ==  true ? json_encode($data_arr) : $data_arr;
    return $result;
}

/**
 * 检测消息类型
 * @param  [type] $content [description]
 * @return [type]          [description]
 */
function checkMsgType($content){
    $content = trim($content);
    if(strpos($content,'img[') === 0){
        return "img";
    }
    return "text";
}

/**
 * 获取当前网址
 */
function getHost($type = 'http')
{
    $host = $_SERVER['HTTP_HOST'];
    if (!$host) $host = '127.0.0.1';
    return $type == 'http' ? $host : 'ws://' . $host;
}

/**
 * 获取当前图片网址
 */
function getImageHost()
{
    $host = $_SERVER['HTTP_HOST'];
    if (!$host) $host = '127.0.0.1';
    return 'http://'.$host;
}

/**
 * 二维数组乱序
 * @param $list
 * @return array
 */
function shuffle_assoc($list) {
    if (!is_array($list)) return $list;
    $keys = array_keys($list);
    shuffle($keys);
    $random = array();
    foreach ($keys as $key)
        $random[$key] = $list[$key];
    return array_column($random, null);
}