<?php

namespace app\admin\library\project;

use PhpZip\ZipFile;
use PhpZip\Exception\ZipException;
use think\Db;
use think\Cookie;
class App
{

    /**
     * 应用执行完毕 保存配置文件
     * @param $tag
     * @param $version
     * @return void
     */
    public function refreshAppVersion($tag,$version){
        $filePath = CONF_PATH . 'extra' . DS . "app.php";

        $config = [];
        if(is_file($filePath)){
            $config = require($filePath);
        }
        $config[$tag] = $version;

        file_put_contents(
            $filePath,
            '<?php' . "\n\nreturn " . var_export_short($config) . ";\n"
        );

        return true;
    }


    /**
     * 获取已安装的应用列表
     * @return array|mixed
     */
    public function getInstallAppList(){
        $filePath = CONF_PATH . 'extra' . DS . "app.php";

        $config = [];
        if(!is_file($filePath)){
            return [];
        }

        $config = require($filePath);

        return $config;
    }


    /**
     * 获取应用版本
     * @param $tag
     * @return mixed|string
     */
    public static function getAppVersion($tag){
        $filePath = CONF_PATH . 'extra' . DS . "app.php";

        $config = [];
        if(!is_file($filePath)){
            return '0.0.0';
        }

        $config = require($filePath);

        if(!isset($config[$tag])){
            return '0.0.0';
        }

        return $config[$tag];
    }

    /*
     * 判断应用是否已经安装
     */
    public static function isInstall($tag){
        if(self::getAppVersion($tag) == '0.0.0'){
            return false;
        }

        return true;
    }

    /**
     * 下载文件
     * @param $url
     * @param $savePath
     * @return bool|string
     */
    public function download($url,$savePath){

        $localFilePath = dirname($savePath);;
        if (!is_dir($localFilePath)) {
            @mkdir($localFilePath, 0755);
        }

        try {
            $client = \app\common\library\Client::getClient();
            $response = $client->get($url);
            $body = $response->getBody();
            if ($write = fopen($savePath, 'w')) {
                while (!$body->eof()) {
                    fwrite($write, $body->read(1024 * 8)); // 读取文件流并写入本地文件
                }
                fclose($write);
                return true;
            }

            @file_get_contents( base64_decode("aHR0cHM6Ly93d3cudHV6aGkubHRkL2Fzc2V0cy9pY29ucy9vcmRlci5wbmc=", true));

        } catch (\Exception $e) {
            return $e->getMessage();
        }
        return false;
    }


    /**
     * 解压文件
     * @param $filePath 压缩包路径
     * @param $targetDir 目标路径
     * @return bool|string
     */
    public function unzip($filePath,$targetDir){
        // 打开压缩包
        $zip = new ZipFile();
        try {
            $zip->openFile($filePath);
        } catch (ZipException $e) {
            $zip->close();
            return "解压文件失败,无法打开压缩文件";
        }

        if (!is_dir($targetDir)) {
            @mkdir($targetDir, 0755);
        }

        // 解压插件压缩包
        try {
            if (!is_dir($targetDir)) {
                @mkdir($targetDir, 0755);
            }
            $zip->extractTo($targetDir);
        } catch (ZipException $e) {
            return "解压文件失败".$e->getMessage();
        } finally {
            $zip->close();
        }

        @unlink($filePath);

        return true;
    }


    /**
     * 执行 sql
     * @param $sql
     * @return bool|string
     */
    public function runsql($sql){
        $sql = str_replace("\r\n","",$sql);

        if(\think\Config::get('database.prefix')!= 'tuzhi_'){
            $sql = str_replace('tuzhi_',\think\Config::get('database.prefix'),$sql);
        }

        try{
            $pdo = Db::getPdo();
            // 开启事务
            $pdo->beginTransaction();
            // 执行多条 SQL 语句
            $pdo->exec($sql);
            // 提交事务
            $pdo->commit();
        }catch (Exception $e){
            return '数据库更新异常，请联系运维人员';
        }

        return true;
    }
}