// User types
export interface User {
  id: string;
  email: string;
  nickname?: string;
  created_at: string;
  updated_at: string;
}

// Event types - for both Anniversary and Reminder
export type EventType = 'anniversary' | 'reminder';

// Repeat types: 'daily'每天, 'weekly'每周, 'monthly'每月, 'yearly'每年, 'none'不重复
export type RepeatType = 'daily' | 'weekly' | 'monthly' | 'yearly' | 'none';

// Priority types: 'none'无色, 'red'红色, 'green'绿色, 'yellow'黄色
export type PriorityType = 'none' | 'red' | 'green' | 'yellow';

// Unified event type (matches backend API)
export interface Event {
  id: string;
  user_id: string;
  type: EventType;
  title: string;
  content?: string;           // Only for reminders
  date: string;               // 当前提醒日期（展示用）
  is_lunar: boolean;
  repeat_type: RepeatType;
  repeat_interval?: number | null;  // 周数间隔（仅 weekly 类型使用）
  next_reminder_date?: string | null;  // 下一次提醒日期（计算用）
  is_holiday?: boolean;       // Only for anniversaries
  is_completed?: boolean;     // Only for reminders
  priority?: PriorityType;     // Priority level for reminders
  created_at: string;
  updated_at: string;
}

// Note types
export interface Note {
  id: string;
  user_id: string;
  content: string; // HTML content from rich text editor
  created_at: string;
  updated_at: string;
}

// AI Parsing types
export interface AIParsedEvent {
  title: string;
  date: string;
  is_lunar: boolean;
  repeat_type: RepeatType;
  reminder_time?: string;
  type: EventType;
}

export interface AIConversation {
  id: string;
  user_id: string;
  message: string;
  response: string;
  parsed_events?: AIParsedEvent[];
  created_at: string;
}

// Auth types
export interface AuthState {
  user: User | null;
  isAuthenticated: boolean;
  isLoading: boolean;
}

export interface LoginCredentials {
  email: string;
  password: string;
}

export interface RegisterCredentials extends LoginCredentials {
  nickname?: string;
}

// API Response types
export interface ApiResponse<T> {
  data: T | null;
  error: string | null;
}

// Loading state types
export type LoadingState = 'idle' | 'loading' | 'success' | 'error';