class MatchModel {
  const MatchModel({
    required this.id,
    required this.teamId,
    required this.teamName,
    required this.opponentName,
    this.location,
    this.scheduledAt,
    this.sport = 'volleyball',
    this.setsToWin = 3,
    this.scoringRules,
    this.rosterNumbers = const [],
    this.category,
    this.phase,
    this.activeSessionId,
    this.activeSessionStatus,
  });

  final String id;
  final String teamId;
  final String teamName;
  final String opponentName;
  final String? location;
  final DateTime? scheduledAt;
  final String sport;
  final int setsToWin;
  final Map<String, dynamic>? scoringRules;
  final List<int> rosterNumbers;
  final String? category;
  final String? phase;
  final String? activeSessionId;
  final String? activeSessionStatus;

  /// Sessione avviata (o in ripresa) — si può rientrare in camera senza rifare il wizard.
  bool get canResumeCamera {
    const resumable = {'connecting', 'live', 'reconnecting', 'paused'};
    return activeSessionId != null &&
        activeSessionStatus != null &&
        resumable.contains(activeSessionStatus);
  }

  bool get hasActiveSession => activeSessionId != null;

  factory MatchModel.fromJson(Map<String, dynamic> json) {
    return MatchModel(
      id: json['id'] as String,
      teamId: json['team_id'] as String,
      teamName: json['team_name'] as String? ?? '',
      opponentName: json['opponent_name'] as String,
      location: json['location'] as String?,
      scheduledAt: json['scheduled_at'] != null
          ? DateTime.tryParse(json['scheduled_at'] as String)
          : null,
      sport: json['sport'] as String? ?? 'volleyball',
      setsToWin: json['sets_to_win'] as int? ?? 3,
      scoringRules: json['scoring_rules'] is Map
          ? Map<String, dynamic>.from(json['scoring_rules'] as Map)
          : null,
      rosterNumbers: (json['roster_numbers'] as List<dynamic>?)
              ?.map((e) => (e as num).toInt())
              .toList() ??
          const [],
      category: json['category'] as String?,
      phase: json['phase'] as String?,
      activeSessionId: json['active_session_id'] as String?,
      activeSessionStatus: json['active_session_status'] as String?,
    );
  }

  Map<String, dynamic> toJson() => {
        'opponent_name': opponentName,
        'location': location,
        'scheduled_at': scheduledAt?.toIso8601String(),
        'sport': sport,
        'sets_to_win': setsToWin,
        if (scoringRules != null) 'scoring_rules': scoringRules,
        'roster_numbers': rosterNumbers,
        'category': category,
        'phase': phase,
      };
}