<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Log;
use App\Tools\RedisClusters;
use Illuminate\Support\Facades\App;

class ExportZip extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'export:zip {db : db filename} {format?  : zip file format 7z,lzma,gz }';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        Log::debug('export offline: 开始压缩');
        $this->info('export offline: 开始压缩');
        $exportPath = 'app/public/export/offline';
        $exportFile = $this->argument('db').'-'.date("Y-m-d").'.db3';

        Log::debug('export offline: zip file {filename} {format}',
                    [
                        'filename'=>$exportFile,
                        'format'=>$this->argument('format')
                    ]);
        switch ($this->argument('format')) {
            case '7z':
                $zipFile = $exportFile . ".7z";
                break;
            case 'lzma':
                $zipFile = $exportFile . ".lzma";
                break;
            default:
                $zipFile = $exportFile . ".gz";
                break;
        }
        //
        $exportFullFileName = storage_path($exportPath.'/'.$exportFile);
        if(!file_exists($exportFullFileName)){
            Log::error('export offline: no db file {filename}',['filename'=>$exportFullFileName]);
            $this->error('export offline: no db file {filename}'.$exportFullFileName);
            return 1;
        }

        $zipFullFileName = storage_path($exportPath.'/'.$zipFile);
        if(file_exists($zipFullFileName)){
            Log::debug('export offline: delete old zip file:'.$zipFullFileName);
            unlink($zipFullFileName);
        }

        shell_exec("cd ".storage_path($exportPath));
        if($this->argument('format')==='7z'){
            $command = "7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on {$zipFullFileName} {$exportFullFileName}";
        }else if($this->argument('format')==='lzma'){
            $command = "xz -k -9 --format=lzma {$exportFullFileName}";
        }else{
            $command = "gzip -k -q --best -c {$exportFullFileName} > {$zipFullFileName}";
        }
        $this->info($command);
        Log::debug('export offline: zip command:'.$command);
        shell_exec($command);
        $this->info('压缩完成');
        Log::debug('zip file {filename} in {format} saved.',
                    [
                        'filename'=>$exportFile,
                        'format'=>$this->argument('format')
                    ]);
        $info = array();
        $url = array();
        foreach (config('mint.server.cdn_urls') as $key => $cdn) {
            $url[] = [
                    'link' => $cdn . '/' . $zipFile,
                    'hostname' =>'cdn-' . $key,
                ];
        }

        $bucket = config('mint.attachments.bucket_name.temporary');
        $tmpFile =  $bucket.'/'. $zipFile ;

        $this->info('upload file='.$tmpFile);
        Log::debug('export offline: upload file {filename}',['filename'=>$tmpFile]);

        Storage::put($tmpFile, file_get_contents($zipFullFileName));

        $this->info('upload done file='.$tmpFile);
        Log::debug('export offline: upload done {filename}',['filename'=>$tmpFile]);

        if (App::environment('local')) {
            $link = Storage::url($tmpFile);
        }else{
            try{
                $link = Storage::temporaryUrl($tmpFile, now()->addDays(2));
            }catch(\Exception $e){
                $this->error('generate temporaryUrl fail');
                Log::error('export offline: generate temporaryUrl fail {Exception}',
                            [
                                'exception'=>$e,
                                'file'=>$tmpFile
                            ]);
                return 1;
            }
        }
        $this->info('link = '.$link);
        Log::info('export offline: link='.$link);

        $url[] = [
            'link'=>$link,
            'hostname'=>'Amazon cloud storage(Hongkong)',
        ];
        $info[] = ['filename'=>$zipFile,
                    'url' => $url,
                   'create_at'=>date("Y-m-d H:i:s"),
                   'chapter'=>RedisClusters::get("/export/chapter/count"),
                   'filesize'=>filesize($zipFullFileName),
                   'min_app_ver'=>'1.3',
                    ];
        RedisClusters::put('/offline/index/'.$this->argument('db'),$info);
        unlink($exportFullFileName);
        return 0;
    }
}