// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/* This code is duplicated from ../issues/MarkdownIssueDescription.ts
 to avoid a cyclic dependency. */

import * as Root from '../root/root.js';

export function getMarkdownFileContent(filename: string): string {
  const rawMarkdown = Root.Runtime.cachedResources.get(filename);
  if (!rawMarkdown) {
    throw new Error(`Markdown file ${filename} not found. Declare it as a resource in the module.json file`);
  }
  return rawMarkdown;
}

// TODO(crbug.com/1108699): Fix types when they are available.
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export function findTitleFromMarkdownAst(markdownAst: any[]): string|null {
  if (markdownAst.length === 0 || markdownAst[0].type !== 'heading' || markdownAst[0].depth !== 1) {
    return null;
  }
  return markdownAst[0].text;
}