studyArena/lib/utils/emitter.ts

import mitt, { type Emitter } from 'mitt';

export const enum EmitterEvents {
  RICH_TEXT_COMMAND = 'RICH_TEXT_COMMAND',
  SYNC_RICH_TEXT_ATTRS_TO_STORE = 'SYNC_RICH_TEXT_ATTRS_TO_STORE',
  OPEN_CHART_DATA_EDITOR = 'OPEN_CHART_DATA_EDITOR',
  OPEN_LATEX_EDITOR = 'OPEN_LATEX_EDITOR',
}

export interface RichTextAction {
  command: string;
  value?: string;
}

export interface RichTextCommand {
  target?: string;
  action: RichTextAction | RichTextAction[];
}

type Events = {
  [EmitterEvents.RICH_TEXT_COMMAND]: RichTextCommand;
  [EmitterEvents.SYNC_RICH_TEXT_ATTRS_TO_STORE]: void;
  [EmitterEvents.OPEN_CHART_DATA_EDITOR]: void;
  [EmitterEvents.OPEN_LATEX_EDITOR]: void;
};

const emitter: Emitter<Events> = mitt<Events>();

export default emitter;