<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class MakeServiceCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'make:service 
    {--provider : Register in the provider}  
    {name : fileName}';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Create Service file';

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

    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        if (!file_exists(base_path('app\\Services'))){
            mkdir('app\\Services',666,false);
        }
        $fileName=$this->argument('name');
        if (!file_exists(base_path('app\\Services\\'.$fileName.'.php'))){
            file_put_contents(base_path('app\\Services\\'.$fileName.'.php'),
                '<?php '.PHP_EOL.PHP_EOL.'namespace App\Services; '.PHP_EOL.PHP_EOL.'Class '.$fileName.PHP_EOL.'{ '.PHP_EOL.PHP_EOL.PHP_EOL.'}');
        }
        else $this->error("ERROR: file exists;");
        if ($this->option("provider")){
            $path = base_path("app\\Providers\\AppServiceProvider.php");
            $i = 0;
            $fop = fopen($path,"r+");
            $endLine = 0;
            $startLine = 0;
            while (!feof($fop)){
                $i += 1;
                $lineStr = fgets($fop);
                if (strpos($lineStr,"app()->singleton"))$endLine = $i;
                if (strpos($lineStr,"App\Services"))$startLine = $i;
            };
            fclose($fop);
            $fop = fopen($path,"r+");
            $i = 0;
            $arr = [];
            while (!feof($fop)){
                $i += 1;
                $lineStr = fgets($fop);
                if ($i == $endLine){
                    $lineStr = $lineStr."        app()->singleton('{$fileName}',{$fileName}::class);".PHP_EOL;
                }
                if ($i == $startLine){
                    $lineStr = $lineStr."use App\Services\\$fileName;".PHP_EOL;
                }
                $arr[] = $lineStr;
            };
            fclose($fop);
            unlink($path);
            foreach ($arr as $value){
                file_put_contents($path,$value,FILE_APPEND);
            }
        }
        $this->info("File create success!");
    }
}