import 'dart:io';

class SearchService {
  static List<File> searchNotes(String query, List<File> notes) {
    if (query.isEmpty) return notes;

    final lowerQuery = query.toLowerCase();
    return notes.where((note) {
      final fileName = note.uri.pathSegments.last.replaceAll('.md', '').toLowerCase();
      final content = note.readAsStringSync().toLowerCase();

      // Fuzzy search: Match if all words in the query are found in either the title or content
      return _matchesFuzzy(lowerQuery, fileName) || _matchesFuzzy(lowerQuery, content);
    }).toList();
  }

  static bool _matchesFuzzy(String query, String text) {
    final words = query.split(RegExp(r'\s+')).where((word) => word.isNotEmpty);
    return words.every((word) => text.contains(word));
  }
}