<?php

namespace Common\Business;

//[1.6.9]

/**
 * 创建文件类
 * Class CreateFile
 * [
 * 创建二维码 createQRCode
 * 创建微信券码 createWxCode
 * 创建微信券码发出请求 wxCodeHttp
 * 生成文件目录 createDir
 * ]
 * @package Common\Business
 */
class CreateFile
{
    /**
     * 创建二维码
     * @param $url 链接
     * @param int $size 最大10最小1
     * @param $file_path 存放码的文件路径
     * @param string $level 控制二维码容错率，不同的参数表示二维码可被覆盖的区域百分比
     * @return bool
     */
    public function createQRCode($url, $size = 10, $file_path, $level = 'L')
    {
        if (empty($url) || empty($size) || empty($file_path) || empty($level)) {
            return false;
        }
        try {
            vendor("phpqrcode.phpqrcode");
            $size = min(max((int)$size, 1), 10);
            \QRcode::png($url, $file_path, $level, $size, 2);  //第五各参数表示空白区域
            if (file_exists($file_path)) {
                return true;
            } else {
                return false;
            }
        } catch (\Exception $e) {
            return false;
        }
    }


    /**
     * 创建微信券码
     * @param $param
     * [
     * path 跳转的小程序路径
     * width 图片宽度
     * merchant_id
     * file_name
     * ]
     * @return mixed
     */
    public function createWxCode($param)
    {
        if (empty($param['merchant_id']) || empty($param['path']) || empty($param['file_name'])) {
            return callBack(statusCode()['error'], "缺少必要参数");
        }
        $param['width'] = $param['width'] ? $param['width'] : 430;
        $post_data = '{"path":"' . $param['path'] . '","width":' . $param['width'] . '}';
        $access_token = get_authorizer_access_tokens($param['merchant_id']);
        $url = "https://api.weixin.qq.com/wxa/getwxacode?access_token=" . $access_token;
        $result = $this->wxCodeHttp($url, $post_data);
        try {
            $res = json_decode($result, true);
            if (is_array($res)) {
                return callBack(statusCode()['error'], $res['errmsg']);
            }
        } catch (\Exception $e) {

        }
        $arr = explode('/', $param['file_name']);
        unset($arr[count($arr) - 1]);
        $file_path = implode('/', $arr);
        $this->createDir($file_path);
        file_put_contents($param['file_name'], $result);
        return callBack(statusCode()['success'], '图片生成成功');
    }

    /**
     * 创建微信券码发出请求
     * @param $url
     * @param $data
     * @return bool|string
     */
    public function wxCodeHttp($url, $data)
    {
        $ch = curl_init();
        $header = "Accept-Charset: utf-8";
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $tmpInfo = curl_exec($ch);
        if (curl_errno($ch)) {
            return false;
        } else {
            return $tmpInfo;
        }
    }


    /**
     * 生成文件目录
     * @param $directory_name 目录地址
     */
    public function createDir($directory_name)
    {
        if (!is_dir($directory_name)) {
            $temp = ltrim($directory_name, './');
            $arr = explode('/', $temp);
            $str = '.';
            foreach ($arr as $key => $sv) {
                if (!is_dir("{$str}/{$sv}")) {
                    mkdir("{$str}/{$sv}", 0777);
                }
                $str = "{$str}/{$sv}";
            }
        }
    }
}