<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Str;

class OAuthPruneKeysCommand extends Command
{
    protected $signature = 'oauth:prune-keys
        {--days=90 : Prune keys whose directories were last modified before this many days ago}
        {--dry-run : Show which keys would be removed without deleting}
        {--force : Skip confirmation prompt}';

    protected $description = 'Remove legacy JWT signing keys older than the configured threshold.';

    public function handle(): int
    {
        $storage = rtrim(config('oauth.keys.storage_path', storage_path('app/oauth-keys')), DIRECTORY_SEPARATOR);
        $currentKid = config('oauth.keys.current_kid', 'fotospiel-jwt');

        if (! File::exists($storage)) {
            $this->error("Key store path does not exist: {$storage}");
            return self::FAILURE;
        }

        $days = (int) $this->option('days');
        $cutoff = now()->subDays($days);

        $candidates = collect(File::directories($storage))
            ->reject(fn ($path) => Str::lower(basename($path)) === 'archive')
            ->filter(function (string $path) use ($currentKid, $cutoff) {
                $kid = basename($path);
                if ($kid === $currentKid) {
                    return false;
                }

                $lastModified = File::lastModified($path);

                return $lastModified !== false && $cutoff->greaterThan(\Carbon\Carbon::createFromTimestamp($lastModified));
            })
            ->values();

        if ($candidates->isEmpty()) {
            $this->info("No legacy key directories older than {$days} days were found.");
            return self::SUCCESS;
        }

        $this->table(
            ['KID', 'Last Modified', 'Path'],
            $candidates->map(fn ($path) => [
                basename($path),
                date('c', File::lastModified($path)),
                $path,
            ])
        );

        if ($this->option('dry-run')) {
            $this->info('Dry run complete. No keys were removed.');
            return self::SUCCESS;
        }

        if (! $this->option('force') && ! $this->confirm('Remove the listed legacy key directories?', false)) {
            $this->warn('Prune cancelled.');
            return self::SUCCESS;
        }

        foreach ($candidates as $path) {
            File::deleteDirectory($path);
        }

        $this->info('Legacy key directories pruned.');

        return self::SUCCESS;
    }
}