// Type definitions for MetonaEditor
// Project: https://git.metona.cn/MetonaTeam/MetonaEditor
// Author: thzxx

declare const VERSION: string;

/** 视图模式 */
export type EditMode = 'edit' | 'split' | 'preview';

/** 主题名 */
export type ThemeName = 'light' | 'dark' | 'auto' | 'warm' | string;

/** 渲染环境，传给自定义 render 函数 */
export interface RenderEnv {
  highlight?: (code: string, lang: string) => string;
  locale?: string;
  [key: string]: unknown;
}

/** 工具栏项：动作名或 '|'（分隔符） */
export type ToolbarItem = string | '|';

/** 编辑器配置 */
export interface MarkdownEditorOptions {
  /** 初始内容 */
  value?: string;
  /** 占位符 */
  placeholder?: string;
  /** 视图模式，默认 'split' */
  mode?: EditMode;
  /** 高度：数字为 px，字符串原样使用，默认 400 */
  height?: number | string;
  /** 工具栏按钮序列，传 false 隐藏工具栏 */
  toolbar?: ToolbarItem[] | false;
  /** 是否显示字数统计状态栏，默认 true */
  wordCount?: boolean;
  /** 自动聚焦，默认 false */
  autofocus?: boolean;
  /** 拼写检查，默认 false */
  spellcheck?: boolean;
  /** 历史栈上限，默认 100 */
  historyLimit?: number;
  /** 分屏模式下同步滚动，默认 true */
  syncScroll?: boolean;
  /** Tab 插入的空格数，0 表示插入 \t，默认 2 */
  tabSize?: number;
  /** 主题，默认 'auto' */
  theme?: ThemeName;
  /** 国际化语言，默认 'zh-CN' */
  locale?: string;
  /** 自定义 Markdown 渲染函数，覆盖内置解析器 */
  render?: (markdown: string, env: RenderEnv) => string;
  /** 自定义代码高亮函数 */
  highlight?: (code: string, lang: string) => string;
  /** 自定义 HTML 净化函数（接收渲染后 HTML，返回安全 HTML） */
  sanitize?: (html: string) => string;
  /** 自定义容器 className */
  className?: string;
  /** 容器内联样式对象 */
  style?: { [key: string]: string };
  /** 实例级插件列表 */
  plugins?: Array<string | PluginObject>;
  /** 唯一 id */
  id?: string;

  // 生命周期回调
  onCreate?: (editor: MarkdownEditor) => void;
  onDestroy?: (editor: MarkdownEditor) => void;
  onInput?: (value: string, editor: MarkdownEditor) => void;
  onChange?: (value: string, editor: MarkdownEditor) => void;
  onFocus?: (editor: MarkdownEditor) => void;
  onBlur?: (editor: MarkdownEditor) => void;
  onSave?: (value: string, editor: MarkdownEditor) => void;
  onModeChange?: (mode: EditMode, editor: MarkdownEditor) => void;
  onFullscreen?: (fullscreen: boolean, editor: MarkdownEditor) => void;
}

/** 插件对象 */
export interface PluginObject {
  name: string;
  description?: string;
  [key: string]: any;
  install?: (editor: MarkdownEditor) => void;
  destroy?: (editor: MarkdownEditor) => void;
}

/** 工具栏按钮配置（addToolbarButton 用） */
export interface ToolbarButtonConfig {
  action: string;
  title?: string;
  text?: string;
  icon?: string;
  onClick?: (editor: MarkdownEditor) => void;
  handler?: (...args: any[]) => void;
}

/** 统计信息 */
export interface EditorStats {
  characters: number;
  words: number;
  chineseChars: number;
  englishWords: number;
  lines: number;
  readingTime: number;
}

/** 编辑器状态 */
export interface EditorStatus {
  id: string;
  mode: EditMode;
  theme: ThemeName;
  locale: string;
  fullscreen: boolean;
  disabled: boolean;
  destroyed: boolean;
  plugins: string[];
}

/** 事件名 */
export type EditorEventName =
  | 'input' | 'change' | 'focus' | 'blur' | 'save'
  | 'modeChange' | 'fullscreen' | 'autosave' | 'destroy';

/** 全局钩子名 */
export type HookName =
  | 'beforeCreate' | 'afterCreate'
  | 'beforeRender' | 'afterRender'
  | 'beforeDestroy' | 'afterDestroy';

/** MarkdownEditor 编辑器类 */
export class MarkdownEditor {
  constructor(container: string | HTMLElement, options?: MarkdownEditorOptions);

  /** 实例 id */
  readonly id: string;
  /** 容器元素 */
  readonly container: HTMLElement;
  /** 配置（只读视图） */
  readonly config: MarkdownEditorOptions;
  /** 根元素 */
  readonly el: HTMLElement;
  readonly toolbarEl: HTMLElement;
  readonly bodyEl: HTMLElement;
  readonly editorPane: HTMLElement;
  readonly previewPane: HTMLElement;
  readonly dividerEl: HTMLElement;
  readonly textarea: HTMLTextAreaElement;
  readonly previewEl: HTMLElement;
  readonly statusEl: HTMLElement | null;

  // 静态钩子
  static on(name: HookName, fn: (editor: MarkdownEditor) => void): () => void;
  static off(name: HookName, fn: (editor: MarkdownEditor) => void): void;
  static trigger(name: HookName, editor: MarkdownEditor): void;

  // 内容
  getValue(): string;
  setValue(markdown: string, opts?: { silent?: boolean }): this;
  getHTML(): string;
  insert(text: string, opts?: { replace?: boolean }): this;
  wrap(before: string, after?: string): this;

  // 选区/焦点
  focus(): this;
  blur(): this;
  enable(): this;
  disable(): this;
  isDisabled(): boolean;

  // 事件
  on(name: EditorEventName, fn: (...args: any[]) => void): () => void;
  off(name: EditorEventName, fn: (...args: any[]) => void): this;

  // 命令
  exec(action: string, ...args: any[]): this;

  // 历史栈
  undo(): this;
  redo(): this;
  canUndo(): boolean;
  canRedo(): boolean;

  // 模式与全屏
  setMode(mode: EditMode): this;
  getMode(): EditMode;
  toggleFullscreen(): this;
  isFullscreen(): boolean;
  exitFullscreen(): this;

  // 统计与状态
  getStats(): EditorStats;
  getStatus(): EditorStatus;

  // 插件
  use(plugin: string | PluginObject, options?: object): this;
  getPlugins(): PluginObject[];
  addToolbarButton(config: ToolbarButtonConfig): this;

  // 生命周期
  destroy(): void;
  isDestroyed(): boolean;
}

/** MarkdownEditor 别名 */
export const Editor: typeof MarkdownEditor;

/** 工厂函数：创建编辑器实例 */
export function create(container: string | HTMLElement, options?: MarkdownEditorOptions): MarkdownEditor;

/** 注册全局默认插件（作用于所有后续创建的实例） */
export function use(plugin: string | PluginObject, options?: object): typeof api;

/** 注册全局事件钩子 */
export function on(name: HookName, fn: (editor: MarkdownEditor) => void): () => void;
/** 注销全局事件钩子 */
export function off(name: HookName, fn: (editor: MarkdownEditor) => void): typeof api;

/** 切换全局主题 */
export function setTheme(theme: ThemeName, options?: object): typeof api;
/** 切换全局语言 */
export function setLocale(locale: string): typeof api;
/** 销毁所有全局资源 */
export function destroy(): void;
/** 获取库运行状态 */
export function getStatus(): {
  version: string;
  theme: string;
  locale: string;
  globalPlugins: string[];
  presetPlugins: string[];
};

// ============ 解析器 ============
/** Markdown 解析函数 */
export function parseMarkdown(markdown: string, env?: RenderEnv): string;
/** URL 安全过滤 */
export function safeUrl(url: string): string;
/** 生成标题锚点 id */
export function slugify(text: string): string;

// ============ 插件 ============
/** 预设插件表 */
export const presetPlugins: {
  autoSave: PluginObject;
  exportTool: PluginObject;
  searchReplace: PluginObject;
  [key: string]: PluginObject;
};

/** 插件工具 */
export const pluginUtils: {
  createManager(): PluginManager;
  register(name: string, plugin: PluginObject): PluginManager;
  unregister(name: string): PluginManager;
  get(name: string): PluginObject | null;
  has(name: string): boolean;
  getAll(): PluginObject[];
  getNames(): string[];
  enable(name: string): PluginManager;
  disable(name: string): PluginManager;
  isEnabled(name: string): boolean;
  getPreset(name: string): PluginObject | null;
  getAllPresets(): { [key: string]: PluginObject };
  createPlugin(config: object): PluginObject;
  validatePlugin(plugin: PluginObject): { valid: boolean; errors: string[] };
};

/** 插件管理器 */
export class PluginManager {
  register(name: string, plugin: PluginObject): this;
  unregister(name: string): this;
  get(name: string): PluginObject | null;
  has(name: string): boolean;
  getAll(): PluginObject[];
  getNames(): string[];
  enable(name: string): this;
  disable(name: string): this;
  isEnabled(name: string): boolean;
  destroy(): void;
}

// ============ 常量 ============
export const DEFAULTS: Readonly<MarkdownEditorOptions>;
export const ICONS: { [key: string]: string };
export const THEMES: { [key: string]: any };
export const EDIT_MODES: EditMode[];
export const DEFAULT_TOOLBAR: ToolbarItem[];
export const TOOLBAR_ACTIONS: string[];

// ============ 工具集 ============
export const themeUtils: {
  initTheme(): void;
  switchTheme(theme: ThemeName): void;
  toggleTheme(): void;
  getCurrentTheme(): string;
  getResolvedTheme(): string;
  applyTheme(theme: ThemeName): void;
  registerTheme(name: string, config: object): void;
  unregisterTheme(name: string): void;
  getAllThemes(): object;
  getThemeNames(): string[];
  hasTheme(name: string): boolean;
  watchSystemTheme(): void;
  unwatchSystemTheme(): void;
  addThemeListener(fn: (theme: string, resolved: string) => void): () => void;
  removeThemeListener(fn: (theme: string, resolved: string) => void): void;
  clearThemeListeners(): void;
  [key: string]: any;
};

export const i18nUtils: {
  initI18n(): void;
  t(key: string, params?: object): string;
  getCurrentLocale(): string;
  setCurrentLocale(locale: string): void;
  loadLocale(locale: string, messages: object): void;
  addLocaleListener(fn: (locale: string) => void): () => void;
  removeLocaleListener(fn: (locale: string) => void): void;
  clearLocaleListeners(): void;
  [key: string]: any;
};

export const animationUtils: {
  cancelAll(): void;
  [key: string]: any;
};

// ============ 默认导出 ============
export interface MeEditorAPI {
  VERSION: string;
  version: string;
  MarkdownEditor: typeof MarkdownEditor;
  Editor: typeof MarkdownEditor;
  create: typeof create;
  use: typeof use;
  on: typeof on;
  off: typeof off;
  setTheme: typeof setTheme;
  setLocale: typeof setLocale;
  destroy: typeof destroy;
  getStatus: typeof getStatus;
  parseMarkdown: typeof parseMarkdown;
  safeUrl: typeof safeUrl;
  slugify: typeof slugify;
  themes: typeof themeUtils;
  i18n: typeof i18nUtils;
  animations: typeof animationUtils;
  plugins: typeof pluginUtils;
  presetPlugins: typeof presetPlugins;
  DEFAULTS: typeof DEFAULTS;
  ICONS: typeof ICONS;
  THEMES: typeof THEMES;
  EDIT_MODES: typeof EDIT_MODES;
  DEFAULT_TOOLBAR: typeof DEFAULT_TOOLBAR;
  TOOLBAR_ACTIONS: typeof TOOLBAR_ACTIONS;
}

/** 默认导出 API 对象 */
declare const api: MeEditorAPI;
export default api;

export {
  api,
  api as meEditor,
  api as MeEditor,
};