export interface User {
  uid: string;
  email: string | null;
  displayName: string | null;
  photoURL: string | null;
  phoneNumber: string | null;
  emailVerified: boolean;
  createdAt: Date;
  lastLoginAt: Date;
  role?: string;
  roles?: string[]; // Support multiple roles
  department?: string;
  departments?: string[]; // Support multiple departments
  isAdmin?: boolean;
  isSuperAdmin?: boolean;
  permissions?: string[];
  metadata?: UserMetadata;
}

export interface UserMetadata {
  inviteId?: string;
  invitedBy?: string;
  invitedAt?: Date;
  source?: string;
  [key: string]: any;
}

export interface UpdateUserData {
  displayName?: string;
  photoURL?: string;
  role?: string;
  department?: string;
  permissions?: string[];
  metadata?: Partial<UserMetadata>;
}

export interface UserProfile extends User {
  organizations?: Organization[];
  preferences?: UserPreferences;
  stats?: UserStats;
}

export interface Organization {
  id: string;
  name: string;
  role: string;
  joinedAt: Date;
}

export interface UserPreferences {
  theme?: 'light' | 'dark' | 'system';
  language?: string;
  timezone?: string;
  notifications?: NotificationPreferences;
}

export interface NotificationPreferences {
  email?: boolean;
  push?: boolean;
  sms?: boolean;
  inApp?: boolean;
}

export interface UserStats {
  lastActive: Date;
  loginCount: number;
  actionsPerformed: number;
}