export interface Env {
  DB: D1Database;
  AI: Ai;
  BOT_TOKEN: string;
  WEBHOOK_SECRET: string;
  SUMMARY_THRESHOLD?: string;
  MAX_SUMMARIES_PER_USER?: string;
  N8N_WEBHOOK_URL?: string;
  OPENAI_API_KEY?: string;
  NAMECHEAP_API_KEY?: string;
  NAMECHEAP_API_KEY_INTERNAL?: string;
  DOMAIN_OWNER_ID?: string;
  DEPOSIT_ADMIN_ID?: string;
  BRAVE_API_KEY?: string;
  DEPOSIT_API_SECRET?: string;
  OPENAI_API_BASE?: string;
  NAMECHEAP_API_URL?: string;
  WHOIS_API_URL?: string;
  CONTEXT7_API_BASE?: string;
  BRAVE_API_BASE?: string;
  WTTR_IN_URL?: string;
  HOSTING_SITE_URL?: string;
  RATE_LIMIT_KV: KVNamespace;
}

export interface IntentAnalysis {
  action: 'chat' | 'n8n';
  type?: string;
  confidence: number;
}

export interface N8nResponse {
  reply?: string;
  error?: string;
}

export interface TelegramUpdate {
  update_id: number;
  message?: TelegramMessage;
  callback_query?: CallbackQuery;
}

export interface CallbackQuery {
  id: string;
  from: TelegramUser;
  message?: TelegramMessage;
  chat_instance: string;
  data?: string;
}

export interface TelegramMessage {
  message_id: number;
  from: TelegramUser;
  chat: TelegramChat;
  date: number;
  text?: string;
}

export interface TelegramUser {
  id: number;
  is_bot: boolean;
  first_name: string;
  last_name?: string;
  username?: string;
}

export interface TelegramChat {
  id: number;
  type: string;
}

export interface BufferedMessage {
  id: number;
  role: 'user' | 'bot';
  message: string;
  created_at: string;
}

export interface Summary {
  id: number;
  generation: number;
  summary: string;
  message_count: number;
  created_at: string;
}

export interface ConversationContext {
  previousSummary: Summary | null;  // 최신 요약 (호환성 유지)
  summaries: Summary[];             // 전체 요약 (최대 3개, 최신순)
  recentMessages: BufferedMessage[];
  totalMessages: number;
}

// Cloudflare Email Workers 타입
export interface EmailMessage {
  from: string;
  to: string;
  headers: Headers;
  raw: ReadableStream;
  rawSize: number;
  setReject(reason: string): void;
  forward(to: string): Promise<void>;
}

// 은행 알림 파싱 결과
export interface BankNotification {
  bankName: string;
  depositorName: string;
  amount: number;
  balanceAfter?: number;
  transactionTime?: Date;
  rawMessage: string;
}