<?php

declare(strict_types=1);

namespace App\DataFile;

use App\DataFile\Data;
use Exception;

class Files
{
    private $path;


    public function __construct(string $path)
    {
        if (file_exists($path)) {
            $this->path = $path;
        } else {
            throw new Exception("File do not exist: $path");
        }
    }

    /**
     * Generator Function
     */
    public function generateFiles(): object
    {
        foreach (scandir($this->path) as $file) {
            if (! in_array($file, ['.', '..'])) {
                $extension = $this->getFileExtension($file);
                if ($extension == 'jpg' || $extension == 'png') {
                	yield $file;
            	}
            }
        }
    }

    /**
     * File Array
     */
    public function getFileArray(): array
    {
        $fileArray = [];
        foreach ($this->generateFiles() as $file) {
            array_push($fileArray, $file);
        }

        return $fileArray;
    }

    /**
     * Sku array
     */
    public function getSkuArray(): array
    {
        $skuArray = [];
        foreach ($this->generateFiles() as $file) {
            $sku = $this->removeImageExtension($file);
            array_push($skuArray, $sku);
        }

        return $skuArray;
    }

    
    public function getFileExtension(string $file): string
    {
        return pathinfo($file, PATHINFO_EXTENSION);
    }

    /**
     * removeImageExtension
     * @param  string $file [description]
     */
    public function removeImageExtension(string $file): string
    {
        $file = basename($file, '.jpg');
        $file = basename($file, '.png');

        return $file;
    }

    public function backupImage(string $file): void
    {
    	$data = new Data();
    	$env = $data->env();
    	$backupPath = $env['BACKUP_IMAGE_PATH']; 
    	rename($this->path . DIRECTORY_SEPARATOR . $file, $backupPath . DIRECTORY_SEPARATOR . $file);
    }
}