syntax = "proto3";

package veza.chat;

option go_package = "veza-backend-api/proto/chat";

import "common/auth.proto";

// Service Chat pour communication avec le module Rust
service ChatService {
  // Gestion des salles
  rpc CreateRoom(CreateRoomRequest) returns (CreateRoomResponse);
  rpc JoinRoom(JoinRoomRequest) returns (JoinRoomResponse);
  rpc LeaveRoom(LeaveRoomRequest) returns (LeaveRoomResponse);
  rpc GetRoomInfo(GetRoomInfoRequest) returns (Room);
  rpc ListRooms(ListRoomsRequest) returns (ListRoomsResponse);
  
  // Gestion des messages
  rpc SendMessage(SendMessageRequest) returns (SendMessageResponse);
  rpc GetMessageHistory(GetMessageHistoryRequest) returns (GetMessageHistoryResponse);
  rpc DeleteMessage(DeleteMessageRequest) returns (DeleteMessageResponse);
  
  // Messages directs
  rpc SendDirectMessage(SendDirectMessageRequest) returns (SendDirectMessageResponse);
  rpc GetDirectMessages(GetDirectMessagesRequest) returns (GetDirectMessagesResponse);
  
  // Modération
  rpc MuteUser(MuteUserRequest) returns (MuteUserResponse);
  rpc BanUser(BanUserRequest) returns (BanUserResponse);
  rpc ModerateMessage(ModerateMessageRequest) returns (ModerateMessageResponse);
  
  // Statistiques temps réel
  rpc GetRoomStats(GetRoomStatsRequest) returns (RoomStats);
  rpc GetUserActivity(GetUserActivityRequest) returns (UserActivity);
}

// Messages pour les salles
message CreateRoomRequest {
  string name = 1;
  string description = 2;
  RoomType type = 3;
  RoomVisibility visibility = 4;
  int64 created_by = 5;
  string auth_token = 6;
}

message CreateRoomResponse {
  Room room = 1;
  string error = 2;
}

message JoinRoomRequest {
  string room_id = 1;
  int64 user_id = 2;
  string auth_token = 3;
}

message JoinRoomResponse {
  bool success = 1;
  RoomMember member = 2;
  string error = 3;
}

message LeaveRoomRequest {
  string room_id = 1;
  int64 user_id = 2;
  string auth_token = 3;
}

message LeaveRoomResponse {
  bool success = 1;
  string error = 2;
}

message GetRoomInfoRequest {
  string room_id = 1;
  string auth_token = 2;
}

message ListRoomsRequest {
  RoomVisibility visibility = 1;
  int32 page = 2;
  int32 limit = 3;
  string auth_token = 4;
}

message ListRoomsResponse {
  repeated Room rooms = 1;
  int32 total = 2;
  string error = 3;
}

// Messages pour les messages
message SendMessageRequest {
  string room_id = 1;
  int64 sender_id = 2;
  string content = 3;
  MessageType type = 4;
  string auth_token = 5;
  string reply_to = 6; // ID du message parent
}

message SendMessageResponse {
  Message message = 1;
  string error = 2;
}

message GetMessageHistoryRequest {
  string room_id = 1;
  int32 limit = 2;
  string before_id = 3; // pagination
  string auth_token = 4;
}

message GetMessageHistoryResponse {
  repeated Message messages = 1;
  bool has_more = 2;
  string error = 3;
}

message DeleteMessageRequest {
  string message_id = 1;
  int64 user_id = 2;
  string auth_token = 3;
}

message DeleteMessageResponse {
  bool success = 1;
  string error = 2;
}

// Messages directs
message SendDirectMessageRequest {
  int64 sender_id = 1;
  int64 recipient_id = 2;
  string content = 3;
  MessageType type = 4;
  string auth_token = 5;
}

message SendDirectMessageResponse {
  DirectMessage message = 1;
  string error = 2;
}

message GetDirectMessagesRequest {
  int64 user_id = 1;
  int64 other_user_id = 2;
  int32 limit = 3;
  string before_id = 4;
  string auth_token = 5;
}

message GetDirectMessagesResponse {
  repeated DirectMessage messages = 1;
  bool has_more = 2;
  string error = 3;
}

// Modération
message MuteUserRequest {
  string room_id = 1;
  int64 user_id = 2;
  int64 moderator_id = 3;
  int64 duration_seconds = 4;
  string reason = 5;
  string auth_token = 6;
}

message MuteUserResponse {
  bool success = 1;
  string error = 2;
}

message BanUserRequest {
  string room_id = 1;
  int64 user_id = 2;
  int64 moderator_id = 3;
  string reason = 4;
  string auth_token = 5;
}

message BanUserResponse {
  bool success = 1;
  string error = 2;
}

message ModerateMessageRequest {
  string message_id = 1;
  int64 moderator_id = 2;
  ModerationAction action = 3;
  string reason = 4;
  string auth_token = 5;
}

message ModerateMessageResponse {
  bool success = 1;
  string error = 2;
}

// Statistiques
message GetRoomStatsRequest {
  string room_id = 1;
  string auth_token = 2;
}

message GetUserActivityRequest {
  int64 user_id = 1;
  string auth_token = 2;
}

// Types de données
message Room {
  string id = 1;
  string name = 2;
  string description = 3;
  RoomType type = 4;
  RoomVisibility visibility = 5;
  int64 created_by = 6;
  int64 created_at = 7;
  int32 member_count = 8;
  int32 online_count = 9;
  bool is_active = 10;
}

message RoomMember {
  int64 user_id = 1;
  string username = 2;
  RoomRole role = 3;
  int64 joined_at = 4;
  bool is_online = 5;
  int64 last_seen = 6;
}

message Message {
  string id = 1;
  string room_id = 2;
  int64 sender_id = 3;
  string sender_username = 4;
  string content = 5;
  MessageType type = 6;
  int64 created_at = 7;
  int64 updated_at = 8;
  bool is_edited = 9;
  bool is_deleted = 10;
  string reply_to = 11;
  repeated MessageReaction reactions = 12;
}

message DirectMessage {
  string id = 1;
  int64 sender_id = 2;
  int64 recipient_id = 3;
  string content = 4;
  MessageType type = 5;
  int64 created_at = 6;
  bool is_read = 7;
  bool is_deleted = 8;
}

message MessageReaction {
  string emoji = 1;
  repeated int64 user_ids = 2;
  int32 count = 3;
}

message RoomStats {
  string room_id = 1;
  int32 total_members = 2;
  int32 online_members = 3;
  int32 messages_today = 4;
  int32 total_messages = 5;
  repeated int64 active_users = 6;
}

message UserActivity {
  int64 user_id = 1;
  int32 rooms_joined = 2;
  int32 messages_sent = 3;
  int64 last_activity = 4;
  bool is_online = 5;
  string current_status = 6;
}

// Énumérations
enum RoomType {
  PUBLIC = 0;
  PRIVATE = 1;
  DIRECT = 2;
  PREMIUM = 3;
}

enum RoomVisibility {
  OPEN = 0;
  INVITE_ONLY = 1;
  HIDDEN = 2;
}

enum RoomRole {
  MEMBER = 0;
  MODERATOR = 1;
  ADMIN = 2;
  OWNER = 3;
}

enum MessageType {
  TEXT = 0;
  IMAGE = 1;
  FILE = 2;
  AUDIO = 3;
  VIDEO = 4;
  SYSTEM = 5;
}

enum ModerationAction {
  WARN = 0;
  DELETE = 1;
  EDIT = 2;
  FLAG = 3;
}