import React from 'react';
import ReactDOM from 'react-dom/client';

import { type IStep } from '@chainlit/react-client';

// @ts-expect-error inline css
import sonnercss from './sonner.css?inline';
// @ts-expect-error inline css
import tailwindcss from './src/index.css?inline';
// @ts-expect-error inline css
import hljscss from 'highlight.js/styles/monokai-sublime.css?inline';

import AppWrapper from './src/appWrapper';
import {
  clearChainlitCopilotThreadId,
  getChainlitCopilotThreadId
} from './src/state';
import { IWidgetConfig } from './src/types';

const id = 'chainlit-copilot';
let root: ReactDOM.Root | null = null;

declare global {
  interface Window {
    cl_shadowRootElement: HTMLDivElement;
    theme?: {
      light: Record<string, string>;
      dark: Record<string, string>;
    };
    mountChainlitWidget: (config: IWidgetConfig) => void;
    unmountChainlitWidget: () => void;
    toggleChainlitCopilot: () => void;
    sendChainlitMessage: (message: IStep) => void;
    getChainlitCopilotThreadId: () => string | null;
    clearChainlitCopilotThreadId: (newThreadId?: string) => void;
  }
}

window.mountChainlitWidget = (config: IWidgetConfig) => {
  const container = document.createElement('div');
  container.id = id;
  document.body.appendChild(container);

  const shadowContainer = container.attachShadow({ mode: 'open' });
  const shadowRootElement = document.createElement('div');
  shadowRootElement.id = 'cl-shadow-root';
  shadowContainer.appendChild(shadowRootElement);

  window.cl_shadowRootElement = shadowRootElement;

  root = ReactDOM.createRoot(shadowRootElement);
  root.render(
    <React.StrictMode>
      <style type="text/css">{tailwindcss.toString()}</style>
      <style type="text/css">{sonnercss.toString()}</style>
      <style type="text/css">{hljscss.toString()}</style>
      <AppWrapper widgetConfig={config} />
    </React.StrictMode>
  );
};

window.unmountChainlitWidget = () => {
  root?.unmount();
};

window.sendChainlitMessage = () => {
  console.info('Copilot is not active. Please check if the widget is mounted.');
};

window.getChainlitCopilotThreadId = getChainlitCopilotThreadId;
window.clearChainlitCopilotThreadId = clearChainlitCopilotThreadId;