export interface User {
  id: string;
  username: string;
  displayName: string;
  avatarColor: string;
  avatar?: string | null;
  bio?: string;
  phone?: string;
  position?: string | null;
  isAdmin: boolean;
  lastSeen?: string;
  online?: boolean;
}

export interface ChatMember {
  id: string;
  username: string;
  displayName: string;
  avatarColor: string;
  avatar?: string | null;
  position?: string | null;
  role: 'owner' | 'admin' | 'member';
  online: boolean;
  lastSeen: string;
  canSendMessages: boolean;
}

export interface Chat {
  id: string;
  type: 'private' | 'group' | 'channel';
  title: string;
  description?: string;
  avatarColor: string;
  avatar?: string | null;
  isPublic?: boolean;
  role: 'owner' | 'admin' | 'member';
  lastMessage?: string;
  lastMessageAt?: string;
  unreadCount: number;
  memberCount: number;
  privateUserId?: string;
  createdAt: string;
  members?: ChatMember[];
  myRole?: string;
  canSendMessages?: boolean;
  canAddMembers?: boolean;
}

export interface Attachment {
  id: string;
  filename: string;
  originalName: string;
  mimeType: string;
  size: number;
  url: string;
}

export interface Message {
  id: string;
  chatId: string;
  content: string;
  type: 'text' | 'image' | 'file' | 'system';
  isDeleted: boolean;
  isEdited: boolean;
  editedAt?: string;
  createdAt: string;
  replyTo?: {
    id: string;
    content: string;
    senderName: string;
  } | null;
  attachments: Attachment[];
  sender: {
    id: string;
    username: string;
    displayName: string;
    avatarColor: string;
  } | null;
}