<?php

namespace Advanced_Media_Offloader\Observers;

use Advanced_Media_Offloader\Abstracts\S3_Provider;
use Advanced_Media_Offloader\Interfaces\ObserverInterface;
use Advanced_Media_Offloader\Services\CloudAttachmentUploader;

class AttachmentUploadObserver implements ObserverInterface
{
    private CloudAttachmentUploader $cloudAttachmentUploader;

    public function __construct(S3_Provider $cloudProvider)
    {
        $this->cloudAttachmentUploader = new CloudAttachmentUploader($cloudProvider);
    }

    public function register(): void
    {
        add_filter('wp_generate_attachment_metadata', [$this, 'run'], 99, 2);
    }

    public function run($metadata, $attachment_id)
    {
        if (!$this->cloudAttachmentUploader->uploadAttachment($attachment_id)) {
            wp_delete_attachment($attachment_id, true);
        }

        return $metadata;
    }
}