import {
  AdapterTextUtils,
  InlineDeltaToPlainTextAdapterExtension,
  type TextBuffer,
} from '@blocksuite/affine-shared/adapters';

export const referenceDeltaMarkdownAdapterMatch =
  InlineDeltaToPlainTextAdapterExtension({
    name: 'reference',
    match: delta => !!delta.attributes?.reference,
    toAST: (delta, context) => {
      const node: TextBuffer = {
        content: delta.insert,
      };
      const reference = delta.attributes?.reference;
      if (!reference) {
        return node;
      }

      const { configs } = context;
      const title = configs.get(`title:${reference.pageId}`) ?? '';
      const url = AdapterTextUtils.generateDocUrl(
        configs.get('docLinkBaseUrl') ?? '',
        String(reference.pageId),
        reference.params ?? Object.create(null)
      );
      const content = `${title ? `${title}: ` : ''}${url}`;

      return {
        content,
      };
    },
  });