import 'player.dart';

class TeamStatus {
  TeamStatus._();
  static const String pending = 'pending';
  static const String approved = 'approved';
  static const String rejected = 'rejected';

  static String normalize(String? raw) {
    switch (raw) {
      case pending:
      case approved:
      case rejected:
        return raw!;
      default:
        return approved;
    }
  }
}

class Team {
  const Team({
    required this.id,
    required this.name,
    this.logoUrl,
    this.description,
    this.wins = 0,
    this.losses = 0,
    this.draws = 0,
    this.players = const <Player>[],
    this.primaryColor,
    this.managerId,
    this.managerEmail = '',
    this.managerPhone,
    this.status = TeamStatus.approved,
  });

  final String id;
  final String name;
  final String? logoUrl;
  final String? description;
  final int wins;
  final int losses;
  final int draws;
  final List<Player> players;
  final String? primaryColor;
  final String? managerId;
  final String managerEmail;
  final String? managerPhone;
  final String status;

  bool get isApproved => status == TeamStatus.approved;
  bool get isPending => status == TeamStatus.pending;
  bool get isRejected => status == TeamStatus.rejected;

  int get totalGames => wins + losses + draws;
  String get record => '$wins-$losses-$draws';
  double get winPercentage => totalGames == 0 ? 0 : wins / totalGames;

  Player? get topScorer {
    if (players.isEmpty) return null;
    Player best = players.first;
    for (final p in players) {
      if (p.goalsScored > best.goalsScored) best = p;
    }
    return best;
  }

  Team copyWith({
    String? id,
    String? name,
    String? logoUrl,
    String? description,
    int? wins,
    int? losses,
    int? draws,
    List<Player>? players,
    String? primaryColor,
    String? managerId,
    String? managerEmail,
    String? managerPhone,
    String? status,
  }) {
    return Team(
      id: id ?? this.id,
      name: name ?? this.name,
      logoUrl: logoUrl ?? this.logoUrl,
      description: description ?? this.description,
      wins: wins ?? this.wins,
      losses: losses ?? this.losses,
      draws: draws ?? this.draws,
      players: players ?? this.players,
      primaryColor: primaryColor ?? this.primaryColor,
      managerId: managerId ?? this.managerId,
      managerEmail: managerEmail ?? this.managerEmail,
      managerPhone: managerPhone ?? this.managerPhone,
      status: status ?? this.status,
    );
  }

  factory Team.fromJson(Map<String, dynamic> data) {
    final rawPlayers = (data['players'] as List?) ?? const [];
    return Team(
      id: (data['id'] as String?) ?? '',
      name: (data['name'] as String?) ?? '',
      logoUrl: data['logo_url'] as String?,
      description: data['description'] as String?,
      wins: (data['wins'] as num?)?.toInt() ?? 0,
      losses: (data['losses'] as num?)?.toInt() ?? 0,
      draws: (data['draws'] as num?)?.toInt() ?? 0,
      players: rawPlayers
          .whereType<Map<String, dynamic>>()
          .map(Player.fromMap)
          .toList(growable: false),
      primaryColor: data['primary_color'] as String?,
      managerId: data['manager_id'] as String?,
      managerEmail: (data['manager_email'] as String?) ?? '',
      managerPhone: data['manager_phone'] as String?,
      status: TeamStatus.normalize(data['status'] as String?),
    );
  }

  Map<String, Object?> toJson() {
    return <String, Object?>{
      'name': name,
      'logo_url': logoUrl,
      'description': description,
      'wins': wins,
      'losses': losses,
      'draws': draws,
      'primary_color': primaryColor,
      'manager_id': managerId,
      'manager_email': managerEmail,
      'manager_phone': managerPhone,
      'status': status,
      'players': players.map((p) => p.toMap()).toList(growable: false),
    };
  }

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;
    if (other is! Team) return false;
    if (other.id != id) return false;
    if (other.name != name) return false;
    if (other.logoUrl != logoUrl) return false;
    if (other.description != description) return false;
    if (other.wins != wins) return false;
    if (other.losses != losses) return false;
    if (other.draws != draws) return false;
    if (other.primaryColor != primaryColor) return false;
    if (other.managerId != managerId) return false;
    if (other.managerEmail != managerEmail) return false;
    if (other.managerPhone != managerPhone) return false;
    if (other.status != status) return false;
    if (other.players.length != players.length) return false;
    for (var i = 0; i < players.length; i++) {
      if (other.players[i] != players[i]) return false;
    }
    return true;
  }

  @override
  int get hashCode => Object.hash(
        id, name, logoUrl, description, wins, losses, draws,
        primaryColor, managerId, managerEmail, managerPhone,
        status, Object.hashAll(players),
      );

  @override
  String toString() =>
      'Team(id: $id, name: $name, status: $status, record: $record, '
      'players: ${players.length})';
}