// In ai_playlist_service.dart
List<EurovisionSong> _parseAIResponse(String response) {
  try {
    // Extract JSON from AI response (handles non-JSON text)
    final jsonMatch = RegExp(r'\[[\s\S]*\]').firstMatch(response);
    if (jsonMatch == null) {
      throw FormatException('No JSON array found in response');
    }
    
    final jsonString = jsonMatch.group(0);
    final List songsList = jsonDecode(jsonString);
    
    return songsList
        .map((song) => EurovisionSong.fromJson(song))
        .toList();
  } catch (e) {
    // Handle parsing errors gracefully
    print('Error parsing AI response: $e');
    return _getFallbackSongs();
  }
}

// In eurovision_song.dart
class EurovisionSong {
  final String title;
  final String artist;
  final String country;
  final int year;
  final String reasoning;
  
  // Constructor and validation
  EurovisionSong({
    required this.title,
    required this.artist,
    required this.country,
    required this.year,
    required this.reasoning,
  }) : assert(year >= 1956 && year <= 2025);
  
  // JSON parsing methods
  factory EurovisionSong.fromJson(Map json) {...}
}

// Primary search with Eurovision context
String query = "${song.title} ${song.artist} eurovision";
var results = await spotify.searchTracks(query);

// First fallback: without Eurovision context
if (results.isEmpty) {
  query = "${song.title} ${song.artist}";
  results = await spotify.searchTracks(query);
}

// Second fallback: title only
if (results.isEmpty) {
  query = "${song.title}";
  results = await spotify.searchTracks(query);
}

// Handle not found
if (results.isEmpty) {
  return EurovisionTrack.notFound(song);
}