Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/javascript/shared/helpers/MessageFormatter.js

@@ -0,0 +1,103 @@
+import mila from 'markdown-it-link-attributes';
+import mentionPlugin from './markdownIt/link';
+import MarkdownIt from 'markdown-it';
+
+const setImageHeight = inlineToken => {
+  const imgSrc = inlineToken.attrGet('src');
+  if (!imgSrc) return;
+  const url = new URL(imgSrc);
+  const height = url.searchParams.get('cw_image_height');
+  if (!height) return;
+  inlineToken.attrSet('style', `height: ${height};`);
+};
+
+const processInlineToken = blockToken => {
+  blockToken.children.forEach(inlineToken => {
+    if (inlineToken.type === 'image') {
+      setImageHeight(inlineToken);
+    }
+  });
+};
+
+const imgResizeManager = md => {
+  // Custom rule for image resize in markdown
+  // If the image url has a query param cw_image_height, then add a style attribute to the image
+  md.core.ruler.after('inline', 'add-image-height', state => {
+    state.tokens.forEach(blockToken => {
+      if (blockToken.type === 'inline') {
+        processInlineToken(blockToken);
+      }
+    });
+  });
+};
+
+const createMarkdownInstance = (linkify = true) => {
+  return MarkdownIt({
+    html: false,
+    xhtmlOut: true,
+    breaks: true,
+    langPrefix: 'language-',
+    linkify,
+    typographer: true,
+    quotes: '\u201c\u201d\u2018\u2019',
+    maxNesting: 20,
+  })
+    .use(mentionPlugin)
+    .use(imgResizeManager)
+    .use(mila, {
+      attrs: {
+        class: 'link',
+        rel: 'noreferrer noopener nofollow',
+        target: '_blank',
+      },
+    });
+};
+
+const TWITTER_USERNAME_REGEX = /(^|[^@\w])@(\w{1,15})\b/g;
+const TWITTER_USERNAME_REPLACEMENT = '$1[@$2](http://twitter.com/$2)';
+const TWITTER_HASH_REGEX = /(^|\s)#(\w+)/g;
+const TWITTER_HASH_REPLACEMENT = '$1[#$2](https://twitter.com/hashtag/$2)';
+
+class MessageFormatter {
+  constructor(
+    message,
+    isATweet = false,
+    isAPrivateNote = false,
+    linkify = true
+  ) {
+    this.message = message || '';
+    this.isAPrivateNote = isAPrivateNote;
+    this.isATweet = isATweet;
+    this.linkify = linkify;
+    this.md = createMarkdownInstance(linkify);
+  }
+
+  formatMessage() {
+    let updatedMessage = this.message;
+    if (this.isATweet && !this.isAPrivateNote) {
+      updatedMessage = updatedMessage.replace(
+        TWITTER_USERNAME_REGEX,
+        TWITTER_USERNAME_REPLACEMENT
+      );
+      updatedMessage = updatedMessage.replace(
+        TWITTER_HASH_REGEX,
+        TWITTER_HASH_REPLACEMENT
+      );
+    }
+    return this.md.render(updatedMessage);
+  }
+
+  get formattedMessage() {
+    return this.formatMessage();
+  }
+
+  get plainText() {
+    const strippedOutHtml = new DOMParser().parseFromString(
+      this.formattedMessage,
+      'text/html'
+    );
+    return strippedOutHtml.body.textContent || '';
+  }
+}
+
+export default MessageFormatter;