<?php

declare(strict_types=1);

namespace App\Jobs;

use App\Models\Media;
use App\Services\Media\ImageProcessor;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Queue\Queueable;
use Illuminate\Queue\Middleware\WithoutOverlapping;

/**
 * Derives an image's versions off the request.
 *
 * Queued because resampling four widths in two formats takes seconds, and the
 * person who pressed "save" should not be waiting for it. Until it runs the
 * image still serves — just without the extras — so a queue that is behind
 * degrades the page rather than breaking it.
 */
class ProcessMedia implements ShouldQueue
{
    use Queueable;

    public int $tries = 3;

    /** @var array<int, int> */
    public array $backoff = [10, 60];

    public function __construct(public Media $media) {}

    /**
     * @return array<int, object>
     */
    public function middleware(): array
    {
        // The safety-net command and an upload can easily land on the same
        // file at once, and both would be writing the same derived paths.
        return [(new WithoutOverlapping("media:{$this->media->id}"))->dontRelease()];
    }

    public function handle(ImageProcessor $processor): void
    {
        $processor->process($this->media);
    }
}