export interface UserStats {
  textsHumanized: number;          // Number of texts humanized
  wordsProcessed: number;          // Total words processed
  gptAverage: number;              // GPT score or percentage
  totalSessions: number;           // Total sessions the user has used
  totalDuration: number;  
  averageSessionTime: number;      // Average session time in minutes
}

export interface UserPreferences {
  theme: 'light' | 'dark' | 'system';      // Theme preference
  language: string;                        // Language code, e.g., 'en'
  timezone: string;                        // Timezone, e.g., 'UTC'
  emailNotifications: boolean;             // Receive email notifications
  pushNotifications: boolean;              // Receive push notifications
  marketingEmails: boolean;                // Marketing emails subscription
  twoFactorEnabled: boolean;               // 2FA enabled
  profileVisibility: 'public' | 'private' | 'friends'; // Profile visibility
}

export interface UserProfile {
  id: string;                              // UID of the user
  name: string;                            // Full name
  nickname: string;                        // Nickname
  username: string;                        // Username handle
  usernameChanged?: boolean;               // Whether username was changed
  bio: string;                             // User bio
  email: string;                            // Email address
  avatar: string;                           // Avatar image URL
  joinDate: string;                         // Join date
  lastActive: string;                       // Last active time
  stats: UserStats;                         // Nested stats object
  preferences: UserPreferences;            // Nested preferences object
}

export interface UserActivity {
  id: string;                               // Activity document ID
  action: string;                           // Action description
  timestamp: string;                        // Activity timestamp
  details?: string;                         // Optional extra details
  type: 'login' | 'profile' | 'settings' | 'security' | 'data'; // Activity type
}