// Chrome扩展API类型声明
declare const chrome: {
  tabs: {
    query: (options: { active?: boolean; currentWindow?: boolean }) => Promise<Array<{ id?: number; title?: string; url?: string }>>;
    sendMessage: (tabId: number, message: any) => Promise<any>;
  };
  runtime: {
    onMessage: {
      addListener: (callback: (message: any, sender: any, sendResponse: (response?: any) => void) => boolean | void) => void;
    };
    openOptionsPage: () => Promise<void>;
  };
  downloads: {
    download: (options: { url: string; filename?: string; saveAs?: boolean }) => Promise<number>;
    onChanged: {
      addListener: (callback: (downloadDelta: any) => void) => void;
    };
  };
  storage: {
    sync: {
      get: (keys?: string | string[] | object) => Promise<any>;
      set: (items: object) => Promise<void>;
    };
    local: {
      get: (keys?: string | string[] | object) => Promise<any>;
      set: (items: object) => Promise<void>;
    };
  };
};

// 声明 TurndownService
declare class TurndownService {
  constructor(options?: {
    headingStyle?: 'atx' | 'setext';
    codeBlockStyle?: 'fenced' | 'indented';
    bulletListMarker?: '-' | '*' | '+';
    emDelimiter?: '*' | '_';
    strongDelimiter?: '**' | '__';
    linkStyle?: 'inlined' | 'referenced';
    preformattedCode?: boolean;
  });
  turndown(html: string): string;
  addRule(key: string, rule: {
    filter: string | string[] | ((node: any) => boolean);
    replacement: (content: string, node: any) => string;
  }): void;
}

// 声明 Readability
declare class Readability {
  constructor(doc: Document);
  parse(): {
    title: string;
    content: string;
    textContent: string;
    length: number;
    excerpt: string;
    byline: string;
    dir: string;
  } | null;
}