enum BalState { pending, ongoing, ended }

class Bal {
  Bal({
    required this.id,
    required this.name,
    required this.state,
    required this.startTime,
    required this.endTime,
  });

  int id;
  String name;
  BalState state;
  DateTime startTime;
  DateTime endTime;

  factory Bal.fromJSON(Map<String, dynamic> json) => Bal(
    id: json["id"],
    name: json["name"],
    state: switch (json["state"]) {
      "Pending" => BalState.pending,
      "Ongoing" => BalState.ongoing,
      _ => BalState.ended,
    },
    startTime: DateTime.fromMillisecondsSinceEpoch(
      json["start_timestamp"] * 1000,
      isUtc: true,
    ).toLocal(),
    endTime: DateTime.fromMillisecondsSinceEpoch(
      json["end_timestamp"] * 1000,
      isUtc: true,
    ).toLocal(),
  );

  int compareTo(Bal other) {
    if (state.index == other.state.index) {
      return 0;
    } else if (state.index > other.state.index) {
      return state.index;
    }
    return -state.index;
  }
}