import React from 'react';
import ReactDOM from 'react-dom';
import './style.css';

import { IssuesList } from './render';
import errorOverlay from 'vscode-notebook-error-overlay';
import type { ActivationFunction } from 'vscode-notebook-renderer';

// ----------------------------------------------------------------------------
// This is the entrypoint to the notebook renderer's webview client-side code.
// This contains some boilerplate that calls the `render()` function when new
// output is available. You probably don't need to change this code; put your
// rendering logic inside of the `render()` function.
// ----------------------------------------------------------------------------

export const activate: ActivationFunction = context => {
  return {
    renderOutputItem(outputItem, element) {
      let shadow = element.shadowRoot;
      if (!shadow) {
        shadow = element.attachShadow({ mode: 'open' });
        const root = document.createElement('div');
        root.id = 'root';
        shadow.append(root);
      }

      const root = shadow.querySelector<HTMLElement>('#root');
      if (!root) {
        throw new Error('Could not find root element');
      }

      errorOverlay.wrap(root, () => {
        root.innerHTML = '';
        const node = document.createElement('div');
        root.appendChild(node);

        ReactDOM.render(<IssuesList info={{ container: node, mime: outputItem.mime, value: outputItem.json(), context }} />, root);
      });
    },
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    disposeOutputItem(_outputId) {
      // Do any teardown here. outputId is the cell output being deleted, or
      // undefined if we're clearing all outputs.
    }
  };
};
