syntax = "proto3";

package chat;

service ChatService {
  rpc ListRooms (ListRoomsRequest) returns (ListRoomsResponse);
  rpc CreateRoom (CreateRoomRequest) returns (ChatRoomResponse);
  rpc UpdateRoomSettings (UpdateRoomSettingsRequest) returns (ChatRoomResponse);
  rpc ListMessages (ListMessagesRequest) returns (ListMessagesResponse);
  rpc SendMessage (SendMessageRequest) returns (ChatMessageResponse);
  rpc VotePoll (VotePollRequest) returns (ChatMessageResponse);
  rpc SetRoomNotificationsMuted (SetRoomNotificationsMutedRequest) returns (MutationResponse);
}

message ListRoomsRequest {
  string userId = 1;
  string groupId = 2;
}

message CreateRoomRequest {
  string userId = 1;
  string groupId = 2;
  string name = 3;
  repeated string memberUserIds = 4;
}

message UpdateRoomSettingsRequest {
  string userId = 1;
  string roomId = 2;
  optional string name = 3;
  optional bool notificationsMuted = 4;
}

message ListMessagesRequest {
  string userId = 1;
  string roomId = 2;
  optional string beforeMessageId = 3;
  int32 limit = 4;
}

message SendMessageRequest {
  string userId = 1;
  string roomId = 2;
  string type = 3;
  optional string content = 4;
  optional string replyToId = 5;
  optional string storageKey = 6;
  optional string mimeType = 7;
  optional string metadataJson = 8;
  optional PollPayload poll = 9;
}

message PollPayload {
  string question = 1;
  repeated string options = 2;
  bool allowsMultiple = 3;
  bool isAnonymous = 4;
}

message VotePollRequest {
  string userId = 1;
  string messageId = 2;
  repeated string optionIds = 3;
}

message SetRoomNotificationsMutedRequest {
  string userId = 1;
  string roomId = 2;
  bool muted = 3;
}

message ChatRoomMemberResponse {
  string id = 1;
  string userId = 2;
  string displayName = 3;
  bool hasAvatar = 4;
  bool notificationsMuted = 5;
}

message ChatRoomResponse {
  string id = 1;
  string groupId = 2;
  string type = 3;
  string name = 4;
  bool hasAvatar = 5;
  string updatedAt = 6;
  repeated ChatRoomMemberResponse members = 7;
  optional ChatMessageResponse lastMessage = 8;
}

message PollOptionResponse {
  string id = 1;
  string text = 2;
  int32 voteCount = 3;
  bool votedByMe = 4;
}

message PollResponse {
  string id = 1;
  string question = 2;
  bool allowsMultiple = 3;
  bool isAnonymous = 4;
  optional string closedAt = 5;
  repeated PollOptionResponse options = 6;
}

message ChatMessageResponse {
  string id = 1;
  string roomId = 2;
  string senderId = 3;
  string senderName = 4;
  bool senderHasAvatar = 5;
  string type = 6;
  optional string content = 7;
  optional string replyToId = 8;
  optional string storageKey = 9;
  optional string mimeType = 10;
  optional string metadataJson = 11;
  string createdAt = 12;
  optional PollResponse poll = 13;
}

message ListRoomsResponse {
  repeated ChatRoomResponse rooms = 1;
}

message ListMessagesResponse {
  repeated ChatMessageResponse messages = 1;
}

message MutationResponse {
  int32 count = 1;
}