feat: Implement message management features including sending, deleting, updating, and reacting to messages

lib/blocs/message/message_state.dart

@@ -0,0 +1,51 @@
+import 'package:equatable/equatable.dart';
+import '../../data/models/message.dart';
+
+abstract class MessageState extends Equatable {
+  const MessageState();
+
+  @override
+  List<Object?> get props => [];
+}
+
+class MessageInitial extends MessageState {}
+
+class MessageLoading extends MessageState {}
+
+class MessagesLoaded extends MessageState {
+  final List<Message> messages;
+  final String groupId;
+
+  const MessagesLoaded({
+    required this.messages,
+    required this.groupId,
+  });
+
+  @override
+  List<Object?> get props => [messages, groupId];
+}
+
+class MessageSending extends MessageState {}
+
+class MessageSent extends MessageState {}
+
+class MessageDeleting extends MessageState {}
+
+class MessageDeleted extends MessageState {}
+
+class MessageUpdating extends MessageState {}
+
+class MessageUpdated extends MessageState {}
+
+class MessageReacting extends MessageState {}
+
+class MessageReacted extends MessageState {}
+
+class MessageError extends MessageState {
+  final String message;
+
+  const MessageError(this.message);
+
+  @override
+  List<Object?> get props => [message];
+}