<?php

namespace Meoran\Images\Console\Commands;

use FilesystemIterator;
use Illuminate\Console\Command;
use Illuminate\Filesystem\Filesystem;
use Meoran\Images\Model\Image;

class RemoveUselessPicturesCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'images:remove';
    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Remove useless pictures.';

    /**
     * RemoveUselessPicturesCommand constructor.
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $this->removeNonExistentPictures();
//        $this->removeNotUsedPictures();
    }

    private function removeNonExistentPictures()
    {
        $base = config('image.path');
        if (empty($base)) {
            throw new \Exception("Config image.path must be defined");
        }

        $fs = new Filesystem();
        $files = collect($fs->allFiles($base));
        $filenames = $files->filter(function ($el) {
            $mime = mime_content_type($el->getPathName());
            if (strpos($mime, 'image/') === false) {
                return false;
            }
            return true;
        })->map(function ($el) {
            return $el->getFilename();
        });

        /**
         * Suppression des images qui n'existent pas physiquement
         */
        $linesToDelete = Image::whereNotIn('filename', $filenames)->get();
        $delete = 0;
        foreach ($linesToDelete as $lineToDelete) {
            $lineToDelete->delete();
            $delete++;
        }
        $this->info("Images supprimées en base : " . $delete);

        /**
         * Suppression des images qui ne sont pas en base
         */
        $pictures = Image::select('filename')->getQuery()->get()->transform(function ($item) {
            return $item->filename;
        })->all();
        $delete = 0;
        foreach ($files as $file) {
            if (!in_array($file, $pictures)) {
                unlink($base . $file);
                $delete++;
            }
        }
        $this->info("Images supprimées physiquement : " . $delete);

    }

}