Move services to public (#6156)

Signed-off-by: Andrey Sobolev <haiodo@gmail.com>

services/github/pod-github/src/markdown/index.ts

@@ -0,0 +1,83 @@
+//
+// Copyright © 2020, 2021 Anticrm Platform Contributors.
+//
+// Licensed under the Eclipse Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License. You may
+// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import {
+  MarkupNode,
+  jsonToMarkup,
+  markupToJSON,
+  MarkdownParser,
+  storeNodes,
+  storeMarks,
+  MarkdownState
+} from '@hcengineering/text'
+import { GithubKit } from './extensions'
+import { hasHulyLink, hasHulyLinkText } from '../sync/guest'
+
+/**
+ * @public
+ */
+export function parseMessageMarkdown (
+  message: string | undefined,
+  refUrl: string,
+  imageUrl: string,
+  guestUrl: string
+): MarkupNode {
+  const extensions = [
+    GithubKit.configure({
+      sub: {
+        hasHulyText: hasHulyLinkText,
+        hasHulyLink: (href) => hasHulyLink(href, guestUrl)
+      }
+    })
+  ]
+  const parser = new MarkdownParser(extensions, refUrl, imageUrl)
+  return parser.parse(message ?? '')
+}
+
+/**
+ * @public
+ */
+export function serializeMessage (node: MarkupNode, refUrl: string, imageUrl: string): string {
+  const state = new MarkdownState(storeNodes, storeMarks, { tightLists: true, refUrl, imageUrl })
+  state.renderContent(node)
+  return state.out
+}
+
+/**
+ * @public
+ */
+export async function markupToMarkdown (
+  markup: string,
+  refUrl: string = 'ref://',
+  imageUrl: string = 'http://localhost',
+  preprocessor?: (nodes: MarkupNode) => Promise<void>
+): Promise<string> {
+  const json = markupToJSON(markup)
+  await preprocessor?.(json)
+  return serializeMessage(json, refUrl, imageUrl)
+}
+
+/**
+ * @public
+ */
+export function markdownToMarkup (
+  message: string,
+  refUrl: string = 'ref://',
+  imageUrl: string = 'http://localhost',
+  guestUrl: string = 'http://localhost/guest'
+): string {
+  const json = parseMessageMarkdown(message, refUrl, imageUrl, guestUrl)
+  return jsonToMarkup(json)
+}