ChatService class abstract

Abstract interface that defines all backend-side behavior for chat.

Concrete implementations can use Firestore, REST, Supabase, etc.

Example:

class MyChatService implements ChatService {
  @override
  Stream<List<ChatMessage>> watchMessages({
    required String chatId,
    int limit = 50,
    String? startAfterMessageId,
  }) {
    // Your implementation
  }
  // ... implement other methods
}

Constructors

ChatService()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

blockUser({required String chatId, required String userId, required String blockedUserId}) → Future<bool>
Blocks a user.
deleteMessage({required String chatId, required String messageId}) → Future<bool>
Deletes a message (soft delete).
markAsRead({required String chatId, required String userId, required String lastReadMessageId, required DateTime lastReadAt}) → Future<void>
Marks messages as read.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
sendMessage({required String chatId, required String authorId, required String text, String? replyToMessageId}) → Future<ChatMessage>
Sends a new message.
toString() → String
A string representation of this object.
inherited
unblockUser({required String chatId, required String userId, required String blockedUserId}) → Future<bool>
Unblocks a user.
watchBlockedUsers({required String chatId, required String userId}) → Stream<Set<String>>
Stream of blocked users.
watchMessages({required String chatId, int limit = 50, String? startAfterMessageId}) → Stream<List<ChatMessage>>
Paginated stream of messages for a chat.
watchUnreadCount({required String chatId, required String userId}) → Stream<int>
Stream of unread message count.

Operators

operator ==(Object other) → bool
The equality operator.
inherited