import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:url_launcher/url_launcher.dart';

/// Opens a folder in the native file explorer.
/// Returns true if a launch was attempted.
Future<bool> openFolder(String path) async {
  if (path.isEmpty) return false;
  try {
    if (kIsWeb) {
      final uri = _parseLaunchableUri(path);
      if (uri != null) {
        return await launchUrl(uri, mode: LaunchMode.platformDefault);
      }
      return false;
    }
    if (Platform.isAndroid || Platform.isIOS) {
      final uri = _parseLaunchableUri(path);
      if (uri != null) {
        return await launchUrl(uri, mode: LaunchMode.externalApplication);
      }
      return false; // Non-HTTP paths (e.g., Windows shares) are not openable on mobile
    }
    if (Platform.isWindows) {
      await Process.run('explorer', [path]);
      return true;
    } else if (Platform.isMacOS) {
      await Process.run('open', [path]);
      return true;
    } else if (Platform.isLinux) {
      await Process.run('xdg-open', [path]);
      return true;
    }
  } catch (_) {
    // ignore errors; caller can show a message
  }
  return false;
}

Uri? _parseLaunchableUri(String input) {
  final s = input.trim();
  if (s.isEmpty) return null;
  if (s.startsWith('http://') || s.startsWith('https://') || s.startsWith('content://') || s.startsWith('file://')) {
    return Uri.tryParse(s);
  }
  // Allow smb:// or ftp:// if present
  if (s.startsWith('smb://') || s.startsWith('ftp://')) {
    return Uri.tryParse(s);
  }
  return null;
}