<?php

namespace App\Console\Commands;

use App\Services\DocumentManager\FolderCatalog;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Str;

class DocumentSyncFolders extends Command
{
    /**
     * The name and signature of the console command.
     */
    protected $signature = 'document:sync-folders {--dry-run : Show operations without creating directories} {--root= : Override the documents root path}';

    /**
     * The console command description.
     */
    protected $description = 'Synchronise the Document Manager folder structure using the standard catalog definition.';

    public function handle(FolderCatalog $catalog): int
    {
        $rootPath = $this->option('root') ?: storage_path('documents');
        $dryRun = (bool) $this->option('dry-run');

        $this->info('Document Manager folder synchronisation');
        $this->line('Root path: ' . $rootPath);
        $this->line($dryRun ? 'Mode: Dry run (no directories will be created)' : 'Mode: Live');
        $this->newLine();

        if (! File::isDirectory($rootPath)) {
            if ($dryRun) {
                $this->warn('Documents directory does not exist. (dry-run)');
            } else {
                File::ensureDirectoryExists($rootPath);
                $this->info('Created documents root directory.');
            }
        }

        $results = $catalog->sync($rootPath, $dryRun);

        if (! empty($results['created'])) {
            $title = $dryRun ? 'Directories that would be created' : 'Directories created';
            $this->section($title);
            $this->displayList($results['created']);
            $this->newLine();
        }

        if (! empty($results['existing'])) {
            $this->section('Directories already present');
            $this->displayList($results['existing']);
            $this->newLine();
        }

        // Detect directories that are not part of the catalog
        $extras = $catalog->detectExtra($rootPath);
        if ($extras->isNotEmpty()) {
            $this->section('Directories not defined in the catalog');
            $sorted = $extras->sort()->values();
            $this->displayList($sorted->all());
            $this->newLine();
        }

        $this->info('Document Manager folder synchronisation completed.');

        if ($dryRun) {
            $this->comment('Dry run mode - no changes were applied.');
        }

        return self::SUCCESS;
    }

    protected function section(string $title): void
    {
        $this->line('<options=bold>' . $title . '</>');
    }

    protected function displayList(array $items, int $limit = 20): void
    {
        $items = array_values(array_unique($items));
        $total = count($items);
        $display = array_slice($items, 0, $limit);

        foreach ($display as $item) {
            $this->line('  - ' . $item);
        }

        if ($total > $limit) {
            $this->line('  ... ' . ($total - $limit) . ' more');
        }
    }
}