feat: honestly forgot

lib/domain/models/bal.dart

@@ -1,5 +1,44 @@
+enum BalState { pending, ongoing, ended }
+
 class Bal {
-  Bal({required this.id});
+  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,
+    ),
+    endTime: DateTime.fromMillisecondsSinceEpoch(
+      json["end_timestamp"] * 1000,
+      isUtc: true,
+    ),
+  );
+
+  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;
+  }
 }