<?php
namespace app\controllers\admin;
use Yii;
use yii\web\Controller;
use Mysqldump;
use Zipdump;
class VersionfileController extends CommonController{
    //在线数据库备份
    public function actionMysqldump(){
        //1.extend/Mysqldump.php
        //  在config/web.php 注册服务Yii::$classMap['Mysqldump'] = '@app/extend/Mysqldump.php';
        //2.控制器use Mysqldump;  引用extend/Mysqldump.php
        Mysqldump::back();
        echo json_encode(
            array(
                'code'=>200,
                'msg'=>'数据库备份成功'
            )
        );

    }
    //备份整个项目目录
    public function actionZipdumpdir(){
        if(!file_exists('oldversion')){
            mkdir('oldversion');
            chmod('oldversion',0777,true);
        }
        $from =Yii::$app->basePath;
        //dd($from);die;
        $to = 'oldversion/zip'.date('Y-m-d H:i:s',time()).'.zip';
        if(!file_exists($to)){
            touch($to);
            chmod($to,0777,true);
        }
        $zip_result = Zipdump::createZip($from, $to);
        if($zip_result['success']=1&&$zip_result['message']==''){
            echo json_encode(
                ['code'=>200,
                    'msg'=>'备份完成'
                ]
            );
        }else{
            echo json_encode(
                ['code'=>500,
                    'msg'=>$zip_result['message']
                ]
            );
        }
    }
    //下载压缩包文件
    public function actionUnziptodir(){
        $request = Yii::$app->request;
        if ($request->isGet){
            $destination=Yii::$app->request->get()['downname'];
            //下载前判断文件是否打包
            if(!file_exists($destination)){
                echo json_encode(['code'=>500,'msg'=>'压缩包不存在']);die;
            }
            //下载zip
            header("Cache-Control: public");
            header("Content-Description: File Transfer");
            header('Content-disposition: attachment; filename='.basename($destination)); //文件名
            header("Content-Type: application/zip"); //zip格式的
            header("Content-Transfer-Encoding: binary"); //告诉浏览器，这是二进制文件
            header('Content-Length: '. filesize($destination)); //告诉浏览器，文件大小
            readfile($destination);
            exit();
        }else{
            return false;
        }


    }
}