import type { ComponentType, ReactNode } from 'react';
import type {
  WrappedComponent,
  Dict,
  BaseComponentProps,
  AnyComponent,
  BaseRegistration,
  RegistrationDisposer,
  UnionOf,
} from 'piral-core';

declare module 'piral-core/lib/types/custom' {
  interface PiletCustomApi extends PiletMenuApi {}

  interface PiralCustomState {}

  interface PiralCustomActions {
    /**
     * Registers a new menu item.
     * @param name The name of the menu item.
     * @param value The menu registration.
     */
    registerMenuItem(name: string, value: MenuItemRegistration): void;
    /**
     * Unregisters an existing menu item.
     * @param name The name of the menu item to be removed.
     */
    unregisterMenuItem(name: string): void;
  }

  interface PiralCustomRegistryState {
    /**
     * The registered menu items for global display.
     */
    menuItems: Dict<MenuItemRegistration>;
  }

  interface PiralCustomErrors {
    menu: MenuItemErrorInfoProps;
  }

  interface PiralCustomComponentsState {
    /**
     * The menu container component.
     */
    MenuContainer: ComponentType<MenuContainerProps>;
    /**
     * The menu item component.
     */
    MenuItem: ComponentType<MenuItemProps>;
  }
}

export interface MenuProps {
  /**
   * The type of the menu.
   */
  type: MenuType;
}

export interface MenuContainerProps {
  /**
   * The type of the menu.
   */
  type: MenuType;
  /**
   * The menu items to display.
   */
  children?: ReactNode;
}

export interface MenuItemProps {
  /**
   * The type of the menu.
   */
  type: MenuType;
  /**
   * The provided menu settings.
   */
  meta: MenuSettings;
  /**
   * The content of the menu item.
   */
  children?: ReactNode;
}

/**
 * The error used when a registered menu item component crashed.
 */
export interface MenuItemErrorInfoProps {
  /**
   * The type of the error.
   */
  type: 'menu';
  /**
   * The provided error details.
   */
  error: any;
  /**
   * The type of the used menu.
   */
  menu: MenuType;
  /**
   * The name of the pilet emitting the error.
   */
  pilet?: string;
}

export interface MenuComponentProps extends BaseComponentProps {}

export interface PiralCustomMenuSettings {}

export interface PiralCustomMenuTypes {}

export type MenuSettings = PiralCustomMenuSettings & PiralSpecificMenuSettings;

export interface PiralMenuType extends PiralCustomMenuTypes {
  /**
   * The general type. No extra options.
   */
  general: {};
  /**
   * The admin type. No extra options.
   */
  admin: {};
  /**
   * The user type. No extra options.
   */
  user: {};
  /**
   * The header type. No extra options.
   */
  header: {};
  /**
   * The footer type. No extra options.
   */
  footer: {};
}

export type PiralSpecificMenuSettings = UnionOf<{
  [P in keyof PiralMenuType]: Partial<PiralMenuType[P]> & {
    /**
     * The type of the menu used.
     */
    type?: P;
  };
}>;

export type MenuType = PiralSpecificMenuSettings['type'];

export interface MenuItemRegistration extends BaseRegistration {
  component: WrappedComponent<MenuComponentProps>;
  settings: MenuSettings;
}

export interface PiletMenuApi {
  /**
   * Registers a menu item for a predefined menu component.
   * The name has to be unique within the current pilet.
   * @param name The name of the menu item.
   * @param Component The component to be rendered within the menu.
   * @param settings The optional configuration for the menu item.
   */
  registerMenu(
    name: string,
    Component: AnyComponent<MenuComponentProps>,
    settings?: MenuSettings,
  ): RegistrationDisposer;
  /**
   * Registers a menu item for a predefined menu component.
   * @param Component The component to be rendered within the menu.
   * @param settings The optional configuration for the menu item.
   */
  registerMenu(Component: AnyComponent<MenuComponentProps>, settings?: MenuSettings): RegistrationDisposer;
  /**
   * Unregisters a menu item known by the given name.
   * Only previously registered menu items can be unregistered.
   * @param name The name of the menu item to unregister.
   */
  unregisterMenu(name: string): void;
}