/// Type d'un mouvement de points dans l'historique.
class TypeMouvement {
  static const facture = 'facture';
  static const recompense = 'recompense';
  static const ajustement = 'ajustement';
}

/// Une ligne d'historique : gain (facture) ou dépense (récompense).
class Mouvement {
  final String id;
  final String type;
  final double? montantEuros;
  final double points; // signé
  final String libelle;
  final DateTime date;

  const Mouvement({
    required this.id,
    required this.type,
    this.montantEuros,
    required this.points,
    required this.libelle,
    required this.date,
  });

  bool get estGain => points >= 0;

  factory Mouvement.fromMap(Map<String, dynamic> map) {
    return Mouvement(
      id: map['id'].toString(),
      type: (map['type'] as String?) ?? TypeMouvement.ajustement,
      montantEuros: (map['montant_euros'] as num?)?.toDouble(),
      points: (map['points'] as num?)?.toDouble() ?? 0,
      libelle: (map['libelle'] as String?) ?? '',
      date: DateTime.tryParse(map['created']?.toString() ?? '')?.toLocal() ??
          DateTime.fromMillisecondsSinceEpoch(0),
    );
  }
}