/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

import {CoreImportExtension, DOMImportExtension} from '@lexical/html';
import {
  $getSelection,
  $isRangeSelection,
  COMMAND_PRIORITY_LOW,
  configExtension,
  defineExtension,
  KEY_ENTER_COMMAND,
} from 'lexical';

import {CodeHighlightNode} from './CodeHighlightNode';
import {
  $installVscodeCodePasteOverlay,
  CodeImportRules,
} from './CodeImportExtension';
import {$exitCodeNodeOnEnter, CodeNode} from './CodeNode';

/**
 * Add code blocks to the editor (syntax highlighting provided separately)
 */
export const CodeExtension = /* @__PURE__ */ defineExtension({
  dependencies: [
    // DOMImportExtension support for the nodes registered here. Inert
    // unless the editor routes HTML through the pipeline (e.g. via
    // ClipboardDOMImportExtension or $generateNodesFromDOMViaExtension).
    CoreImportExtension,
    /* @__PURE__ */ configExtension(DOMImportExtension, {
      preprocess: [$installVscodeCodePasteOverlay],
      rules: CodeImportRules,
    }),
  ],
  name: '@lexical/code',
  nodes: () => [CodeNode, CodeHighlightNode],
  register(editor) {
    return editor.registerCommand<KeyboardEvent>(
      KEY_ENTER_COMMAND,
      event => {
        const selection = $getSelection();
        if ($isRangeSelection(selection) && $exitCodeNodeOnEnter(selection)) {
          event.preventDefault();
          return true;
        }
        return false;
      },
      COMMAND_PRIORITY_LOW,
    );
  },
});

/**
 * Bundles {@link CodeImportRules} together with the runtime
 * {@link CodeExtension}.
 *
 * @experimental
 * @deprecated {@link CodeExtension} now registers
 * {@link CodeImportRules} (and `CoreImportExtension`) itself — depend on
 * it directly instead.
 */
export const CodeImportExtension = /* @__PURE__ */ defineExtension({
  dependencies: [CodeExtension],
  name: '@lexical/code/Import',
});