<?php

namespace App\Console\Commands;

use App\Models\Attachment;
use App\Services\AttachmentThumbnailService;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Storage;

class CronRun extends Command
{
    protected $signature = 'speedbb:cron {--force : Recreate thumbnails even if already present} {--dry-run : Report without writing}';

    protected $description = 'Run periodic maintenance tasks (currently: attachment thumbnail recreation).';

    public function handle(AttachmentThumbnailService $thumbnailService): int
    {
        $force = (bool) $this->option('force');
        $dryRun = (bool) $this->option('dry-run');

        $stats = [
            'checked' => 0,
            'created' => 0,
            'skipped' => 0,
            'missing' => 0,
            'non_image' => 0,
        ];

        $this->info('Processing attachment thumbnails...');

        Attachment::query()
            ->orderBy('id')
            ->chunkById(200, function ($attachments) use ($thumbnailService, $force, $dryRun, &$stats) {
                foreach ($attachments as $attachment) {
                    $stats['checked']++;

                    $mime = $attachment->mime_type ?? '';
                    if (!str_starts_with($mime, 'image/')) {
                        $stats['non_image']++;
                        continue;
                    }

                    $disk = Storage::disk($attachment->disk);
                    if (!$disk->exists($attachment->path)) {
                        $stats['missing']++;
                        continue;
                    }

                    $needsThumbnail = $force
                        || !$attachment->thumbnail_path
                        || !$disk->exists($attachment->thumbnail_path);

                    if (!$needsThumbnail) {
                        $stats['skipped']++;
                        continue;
                    }

                    if ($dryRun) {
                        $stats['created']++;
                        continue;
                    }

                    if ($force && $attachment->thumbnail_path && $disk->exists($attachment->thumbnail_path)) {
                        $disk->delete($attachment->thumbnail_path);
                    }

                    $payload = $thumbnailService->createForAttachment($attachment, $force);
                    if (!$payload) {
                        $stats['skipped']++;
                        continue;
                    }

                    $attachment->thumbnail_path = $payload['path'] ?? null;
                    $attachment->thumbnail_mime_type = $payload['mime'] ?? null;
                    $attachment->thumbnail_size_bytes = $payload['size'] ?? null;
                    $attachment->save();

                    $stats['created']++;
                }
            });

        $this->info(sprintf(
            'Checked: %d | Created: %d | Skipped: %d | Missing: %d | Non-image: %d',
            $stats['checked'],
            $stats['created'],
            $stats['skipped'],
            $stats['missing'],
            $stats['non_image']
        ));

        return self::SUCCESS;
    }
}