feat: Add ability to mention users in comments (#1162)

client/package-lock.json

@@ -69,6 +69,7 @@
         "react-i18next": "^15.5.1",
         "react-input-mask": "^2.0.4",
         "react-intersection-observer": "^9.16.0",
+        "react-mentions": "^4.4.10",
         "react-photoswipe-gallery": "^2.2.7",
         "react-redux": "^8.1.3",
         "react-router-dom": "^6.30.0",
@@ -12296,6 +12297,31 @@
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-18.3.1.tgz",
       "integrity": "sha512-/LLMVyas0ljjAtoYiPqYiL8VWXzUUdThrmU5+n20DZv+a+ClRoevUzw5JxU+Ieh5/c87ytoTBV9G1FiKfNJdmg=="
     },
+    "node_modules/react-mentions": {
+      "version": "4.4.10",
+      "resolved": "https://registry.npmjs.org/react-mentions/-/react-mentions-4.4.10.tgz",
+      "integrity": "sha512-JHiQlgF1oSZR7VYPjq32wy97z1w1oE4x10EuhKjPr4WUKhVzG1uFQhQjKqjQkbVqJrmahf+ldgBTv36NrkpKpA==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@babel/runtime": "7.4.5",
+        "invariant": "^2.2.4",
+        "prop-types": "^15.5.8",
+        "substyle": "^9.1.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.3",
+        "react-dom": ">=16.8.3"
+      }
+    },
+    "node_modules/react-mentions/node_modules/@babel/runtime": {
+      "version": "7.4.5",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.4.5.tgz",
+      "integrity": "sha512-TuI4qpWZP6lGOGIuGWtp9sPluqYICmbk8T/1vpSysqJxRPkudh/ofFWyqdcMsDf2s7KvDL4/YHgKyvcS3g9CJQ==",
+      "license": "MIT",
+      "dependencies": {
+        "regenerator-runtime": "^0.13.2"
+      }
+    },
     "node_modules/react-onclickoutside": {
       "version": "6.13.2",
       "resolved": "https://registry.npmjs.org/react-onclickoutside/-/react-onclickoutside-6.13.2.tgz",
@@ -12677,6 +12703,12 @@
         "node": ">=4"
       }
     },
+    "node_modules/regenerator-runtime": {
+      "version": "0.13.11",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
+      "integrity": "sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg==",
+      "license": "MIT"
+    },
     "node_modules/regexp-match-indices": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/regexp-match-indices/-/regexp-match-indices-1.0.2.tgz",
@@ -14183,6 +14215,19 @@
       "resolved": "https://registry.npmjs.org/stylis/-/stylis-4.3.6.tgz",
       "integrity": "sha512-yQ3rwFWRfwNUY7H5vpU0wfdkNSnvnJinhF9830Swlaxl03zsOjCfmX0ugac+3LtK0lYSgwL/KXc8oYL3mG4YFQ=="
     },
+    "node_modules/substyle": {
+      "version": "9.4.1",
+      "resolved": "https://registry.npmjs.org/substyle/-/substyle-9.4.1.tgz",
+      "integrity": "sha512-VOngeq/W1/UkxiGzeqVvDbGDPM8XgUyJVWjrqeh+GgKqspEPiLYndK+XRcsKUHM5Muz/++1ctJ1QCF/OqRiKWA==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.3.4",
+        "invariant": "^2.2.4"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.3"
+      }
+    },
     "node_modules/supports-color": {
       "version": "8.1.1",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",

client/package.json

@@ -140,6 +140,7 @@
     "react-i18next": "^15.5.1",
     "react-input-mask": "^2.0.4",
     "react-intersection-observer": "^9.16.0",
+    "react-mentions": "^4.4.10",
     "react-photoswipe-gallery": "^2.2.7",
     "react-redux": "^8.1.3",
     "react-router-dom": "^6.30.0",

client/src/components/comments/Comments/Add.jsx

@@ -3,16 +3,18 @@
  * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
  */
 
-import React, { useCallback, useState } from 'react';
-import { useDispatch } from 'react-redux';
+import React, { useCallback, useState, useRef } from 'react';
+import { useDispatch, useSelector } from 'react-redux';
 import { useTranslation } from 'react-i18next';
-import TextareaAutosize from 'react-textarea-autosize';
-import { Button, Form, TextArea } from 'semantic-ui-react';
+import { Mention, MentionsInput } from 'react-mentions';
+import { Button, Form } from 'semantic-ui-react';
 import { useClickAwayListener, useDidUpdate, useToggle } from '../../../lib/hooks';
 
+import selectors from '../../../selectors';
 import entryActions from '../../../entry-actions';
 import { useEscapeInterceptor, useForm, useNestedRef } from '../../../hooks';
 import { isModifierKeyPressed } from '../../../utils/event-helpers';
+import UserAvatar from '../../users/UserAvatar';
 
 import styles from './Add.module.scss';
 
@@ -21,13 +23,16 @@ const DEFAULT_DATA = {
 };
 
 const Add = React.memo(() => {
+  const boardMemberships = useSelector(selectors.selectMembershipsForCurrentBoard);
+
   const dispatch = useDispatch();
   const [t] = useTranslation();
+  const [data, , setData] = useForm(DEFAULT_DATA);
   const [isOpened, setIsOpened] = useState(false);
-  const [data, handleFieldChange, setData] = useForm(DEFAULT_DATA);
   const [selectTextFieldState, selectTextField] = useToggle();
 
-  const [textFieldRef, handleTextFieldRef] = useNestedRef();
+  const mentionsInputRef = useRef(null);
+  const textFieldRef = useRef(null);
   const [buttonRef, handleButtonRef] = useNestedRef();
 
   const submit = useCallback(() => {
@@ -47,6 +52,11 @@ const Add = React.memo(() => {
   }, [dispatch, data, setData, selectTextField, textFieldRef]);
 
   const handleEscape = useCallback(() => {
+    if (mentionsInputRef.current.isOpened()) {
+      mentionsInputRef.current.clearSuggestions();
+      return;
+    }
+
     setIsOpened(false);
     textFieldRef.current.blur();
   }, [textFieldRef]);
@@ -62,6 +72,15 @@ const Add = React.memo(() => {
     setIsOpened(true);
   }, []);
 
+  const handleFieldChange = useCallback(
+    (_, text) => {
+      setData({
+        text,
+      });
+    },
+    [setData],
+  );
+
   const handleFieldKeyDown = useCallback(
     (event) => {
       if (isModifierKeyPressed(event) && event.key === 'Enter') {
@@ -85,6 +104,16 @@ const Add = React.memo(() => {
     handleClickAwayCancel,
   );
 
+  const suggestionRenderer = useCallback(
+    (entry, _, highlightedDisplay) => (
+      <div className={styles.suggestion}>
+        <UserAvatar id={entry.id} size="tiny" />
+        {highlightedDisplay}
+      </div>
+    ),
+    [],
+  );
+
   useDidUpdate(() => {
     if (isOpened) {
       activateEscapeInterceptor();
@@ -99,21 +128,39 @@ const Add = React.memo(() => {
 
   return (
     <Form onSubmit={handleSubmit}>
-      <TextArea
+      <div className={styles.field}>
+        <MentionsInput
           {...clickAwayProps} // eslint-disable-line react/jsx-props-no-spreading
-        ref={handleTextFieldRef}
-        as={TextareaAutosize}
-        name="text"
+          allowSpaceInQuery
+          allowSuggestionsAboveCursor
+          ref={mentionsInputRef}
+          inputRef={textFieldRef}
           value={data.text}
           placeholder={t('common.writeComment')}
           maxLength={1048576}
-        minRows={isOpened ? 3 : 1}
-        spellCheck={false}
-        className={styles.field}
+          rows={isOpened ? 3 : 1}
+          className="mentions-input"
+          style={{
+            control: {
+              minHeight: isOpened ? '79px' : '37px',
+            },
+          }}
           onFocus={handleFieldFocus}
-        onKeyDown={handleFieldKeyDown}
           onChange={handleFieldChange}
+          onKeyDown={handleFieldKeyDown}
+        >
+          <Mention
+            appendSpaceOnAdd
+            data={boardMemberships.map(({ user }) => ({
+              id: user.id,
+              display: user.username || user.name,
+            }))}
+            displayTransform={(_, display) => `@${display}`}
+            renderSuggestion={suggestionRenderer}
+            className={styles.mention}
           />
+        </MentionsInput>
+      </div>
       {isOpened && (
         <div className={styles.controls}>
           <Button

client/src/components/comments/Comments/Add.module.scss

@@ -17,19 +17,35 @@
 
   .field {
     background: #fff;
-    border: 0;
+    margin-bottom: 8px !important;
+
+    textarea {
+      background: #fff;
+      border: 1px solid rgba(9, 30, 66, 0.13);
+      border-radius: 3px;
       box-sizing: border-box;
       color: #333;
       display: block;
-    line-height: 1.5;
+      line-height: 1.4;
       font-size: 14px;
       overflow: hidden;
       padding: 8px 12px;
       resize: none;
-    width: 100%;
 
       &:focus {
         outline: none;
       }
     }
   }
+
+  .mention {
+    background-color: #f1f8ff;
+    border-radius: 3px;
+  }
+
+  .suggestion {
+    align-items: center;
+    display: flex;
+    gap: 8px;
+  }
+}

client/src/components/comments/Comments/Edit.module.scss

@@ -22,7 +22,6 @@
     overflow: hidden;
     padding: 8px 12px;
     resize: none;
-    width: 100%;
 
     &:focus {
       outline: none;

client/src/components/notifications/NotificationsStep/Item.jsx

@@ -13,6 +13,7 @@ import { Button } from 'semantic-ui-react';
 
 import selectors from '../../../selectors';
 import entryActions from '../../../entry-actions';
+import { formatTextWithMentions } from '../../../utils/formatters';
 import Paths from '../../../constants/Paths';
 import { StaticUserIds } from '../../../constants/StaticUsers';
 import { NotificationTypes } from '../../../constants/Enums';
@@ -83,7 +84,7 @@ const Item = React.memo(({ id, onClose }) => {
       break;
     }
     case NotificationTypes.COMMENT_CARD: {
-      const commentText = truncate(notification.data.text);
+      const commentText = truncate(formatTextWithMentions(notification.data.text));
 
       contentNode = (
         <Trans
@@ -122,6 +123,28 @@ const Item = React.memo(({ id, onClose }) => {
       );
 
       break;
+    case NotificationTypes.MENTION_IN_COMMENT: {
+      const commentText = truncate(formatTextWithMentions(notification.data.text));
+
+      contentNode = (
+        <Trans
+          i18nKey="common.userMentionedYouInCommentOnCard"
+          values={{
+            user: creatorUserName,
+            comment: commentText,
+            card: cardName,
+          }}
+        >
+          <span className={styles.author}>{creatorUserName}</span>
+          {` mentioned you in «${commentText}» on `}
+          <Link to={Paths.CARDS.replace(':id', notification.cardId)} onClick={onClose}>
+            {cardName}
+          </Link>
+        </Trans>
+      );
+
+      break;
+    }
     default:
       contentNode = null;
   }

client/src/configs/markdown-plugins/index.js

@@ -23,6 +23,7 @@ import { emojiDefs } from '@gravity-ui/markdown-editor/_/bundle/emoji';
 /* eslint-enable import/no-unresolved */
 
 import link from './link';
+import mention from './mention';
 
 export default [
   ins,
@@ -41,4 +42,5 @@ export default [
   meta,
   deflist,
   link,
+  mention,
 ];

client/src/configs/markdown-plugins/mention.js

@@ -0,0 +1,61 @@
+/*!
+ * Copyright (c) 2024 PLANKA Software GmbH
+ * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
+ */
+
+const MENTION_REGEX = /@\[(.*?)\]\((.*?)\)/g;
+
+export default (md) => {
+  md.core.ruler.push('mention', ({ tokens }) => {
+    tokens.forEach((token) => {
+      if (token.type === 'inline' && token.content) {
+        const matches = [...token.content.matchAll(MENTION_REGEX)];
+
+        if (matches.length > 0) {
+          const newChildren = [];
+          let lastIndex = 0;
+
+          matches.forEach((match) => {
+            // Add text before the mention
+            if (match.index > lastIndex) {
+              newChildren.push({
+                type: 'text',
+                content: token.content.slice(lastIndex, match.index),
+                level: token.level,
+              });
+            }
+
+            // Add mention token
+            newChildren.push({
+              type: 'mention',
+              meta: {
+                display: match[1],
+                userId: match[2],
+              },
+              level: token.level,
+            });
+
+            lastIndex = match.index + match[0].length;
+          });
+
+          // Add remaining text after last mention
+          if (lastIndex < token.content.length) {
+            newChildren.push({
+              type: 'text',
+              content: token.content.slice(lastIndex),
+              level: token.level,
+            });
+          }
+
+          token.children = newChildren; // eslint-disable-line no-param-reassign
+        }
+      }
+    });
+  });
+
+  // eslint-disable-next-line no-param-reassign
+  md.renderer.rules.mention = (tokens, index) => {
+    const { display, userId } = tokens[index].meta;
+    return `<span class="mention" data-user-id="${userId}">@${display}</span>`;
+  };
+};

client/src/constants/Enums.js

@@ -100,6 +100,7 @@ export const NotificationTypes = {
   MOVE_CARD: 'moveCard',
   COMMENT_CARD: 'commentCard',
   ADD_MEMBER_TO_CARD: 'addMemberToCard',
+  MENTION_IN_COMMENT: 'mentionInComment',
 };
 
 export const NotificationServiceFormats = {

client/src/locales/en-GB/core.js

@@ -303,6 +303,8 @@ export default {
       userMarkedTaskIncompleteOnCard:
         '<0>{{user}}</0> marked {{task}} incomplete on <4>{{card}}</4>',
       userMarkedTaskIncompleteOnThisCard: '<0>{{user}}</0> marked {{task}} incomplete on this card',
+      userMentionedYouInCommentOnCard:
+        '<0>{{user}}</0> mentioned you in a comment «{{comment}}» on <2>{{card}}</2>',
       userMovedCardFromListToList:
         '<0>{{user}}</0> moved <2>{{card}}</2> from {{fromList}} to {{toList}}',
       userMovedThisCardFromListToList:

client/src/locales/en-US/core.js

@@ -298,6 +298,8 @@ export default {
       userMarkedTaskIncompleteOnCard:
         '<0>{{user}}</0> marked {{task}} incomplete on <4>{{card}}</4>',
       userMarkedTaskIncompleteOnThisCard: '<0>{{user}}</0> marked {{task}} incomplete on this card',
+      userMentionedYouInCommentOnCard:
+        '<0>{{user}}</0> mentioned you in a comment «{{comment}}» on <2>{{card}}</2>',
       userMovedCardFromListToList:
         '<0>{{user}}</0> moved <2>{{card}}</2> from {{fromList}} to {{toList}}',
       userMovedThisCardFromListToList:

client/src/styles.module.scss

@@ -12,6 +12,31 @@
       height: auto;
     }
 
+    .mentions-input {
+      &__highlighter {
+        line-height: 1.4;
+        padding: 8px 12px;
+      }
+
+      &__suggestions {
+        border: 1px solid #d4d4d5;
+        border-radius: 3px;
+        box-shadow: 0 8px 16px -4px rgba(9, 45, 66, 0.25),
+          0 0 0 1px rgba(9, 45, 66, 0.08);
+        max-height: 200px;
+        overflow-y: auto;
+
+        &__item {
+          padding: 8px 12px;
+
+          &--focused {
+            background-color: rgba(0, 0, 0, 0.05);
+            color: rgba(0, 0, 0, 0.95);
+          }
+        }
+      }
+    }
+
     .react-datepicker {
       border: 0;
       color: #444444;
@@ -192,6 +217,13 @@
       font-size: .85em !important;
     }
 
+    .mention {
+      color: #0366d6;
+      background-color: #f1f8ff;
+      border-radius: 3px;
+      padding: 0 2px;
+    }
+
     .yfm-clipboard:hover {
       .yfm-clipboard-button {
         min-height: auto;

client/src/utils/formatters.js

@@ -0,0 +1,4 @@
+const MENTIONS_REGEX = /@\[(.*?)\]\(.*?\)/g;
+
+// eslint-disable-next-line import/prefer-default-export
+export const formatTextWithMentions = (text) => text.replace(MENTIONS_REGEX, '@$1');

server/api/helpers/comments/create-one.js

@@ -6,10 +6,18 @@
 const escapeMarkdown = require('escape-markdown');
 const escapeHtml = require('escape-html');
 
+const { formatTextWithMentions } = require('../../../utils/formatters');
+
+const extractMentionedUserIds = (text) => {
+  const mentionRegex = /@\[.*?\]\((.*?)\)/g;
+  const matches = [...text.matchAll(mentionRegex)];
+  return matches.map((match) => match[1]);
+};
+
 const buildAndSendNotifications = async (services, board, card, comment, actorUser, t) => {
   const markdownCardLink = `[${escapeMarkdown(card.name)}](${sails.config.custom.baseUrl}/cards/${card.id})`;
   const htmlCardLink = `<a href="${sails.config.custom.baseUrl}/cards/${card.id}}">${escapeHtml(card.name)}</a>`;
-  const commentText = _.truncate(comment.text);
+  const commentText = _.truncate(formatTextWithMentions(comment.text));
 
   await sails.helpers.utils.sendNotifications(services, t('New Comment'), {
     text: `${t(
@@ -91,6 +99,19 @@ module.exports = {
       user: values.user,
     });
 
+    let mentionedUserIds = extractMentionedUserIds(values.text);
+
+    if (mentionedUserIds.length > 0) {
+      const boardMemberUserIds = await sails.helpers.boards.getMemberUserIds(inputs.board.id);
+
+      mentionedUserIds = _.difference(
+        _.intersection(mentionedUserIds, boardMemberUserIds),
+        comment.userId,
+      );
+    }
+
+    const mentionedUserIdsSet = new Set(mentionedUserIds);
+
     const cardSubscriptionUserIds = await sails.helpers.cards.getSubscriptionUserIds(
       comment.cardId,
       comment.userId,
@@ -101,7 +122,11 @@ module.exports = {
       comment.userId,
     );
 
-    const notifiableUserIds = _.union(cardSubscriptionUserIds, boardSubscriptionUserIds);
+    const notifiableUserIds = _.union(
+      mentionedUserIds,
+      cardSubscriptionUserIds,
+      boardSubscriptionUserIds,
+    );
 
     await Promise.all(
       notifiableUserIds.map((userId) =>
@@ -109,7 +134,9 @@ module.exports = {
           values: {
             userId,
             comment,
-            type: Notification.Types.COMMENT_CARD,
+            type: mentionedUserIdsSet.has(userId)
+              ? Notification.Types.MENTION_IN_COMMENT
+              : Notification.Types.COMMENT_CARD,
             data: {
               card: _.pick(values.card, ['name']),
               text: comment.text,

server/api/helpers/notifications/create-one.js

@@ -6,6 +6,8 @@
 const escapeMarkdown = require('escape-markdown');
 const escapeHtml = require('escape-html');
 
+const { formatTextWithMentions } = require('../../../utils/formatters');
+
 const buildTitle = (notification, t) => {
   switch (notification.type) {
     case Notification.Types.MOVE_CARD:
@@ -14,6 +16,8 @@ const buildTitle = (notification, t) => {
       return t('New Comment');
     case Notification.Types.ADD_MEMBER_TO_CARD:
       return t('You Were Added to Card');
+    case Notification.Types.MENTION_IN_COMMENT:
+      return t('You Were Mentioned in Comment');
     default:
       return null;
   }
@@ -56,7 +60,7 @@ const buildBodyByFormat = (board, card, notification, actorUser, t) => {
       };
     }
     case Notification.Types.COMMENT_CARD: {
-      const commentText = _.truncate(notification.data.text);
+      const commentText = _.truncate(formatTextWithMentions(notification.data.text));
 
       return {
         text: `${t(
@@ -95,6 +99,30 @@ const buildBodyByFormat = (board, card, notification, actorUser, t) => {
           escapeHtml(board.name),
         ),
       };
+    case Notification.Types.MENTION_IN_COMMENT: {
+      const commentText = _.truncate(formatTextWithMentions(notification.data.text));
+
+      return {
+        text: `${t(
+          '%s mentioned you in %s on %s',
+          actorUser.name,
+          card.name,
+          board.name,
+        )}:\n${commentText}`,
+        markdown: `${t(
+          '%s mentioned you in %s on %s',
+          escapeMarkdown(actorUser.name),
+          markdownCardLink,
+          escapeMarkdown(board.name),
+        )}:\n\n*${escapeMarkdown(commentText)}*`,
+        html: `${t(
+          '%s mentioned you in %s on %s',
+          escapeHtml(actorUser.name),
+          htmlCardLink,
+          escapeHtml(board.name),
+        )}:\n\n<i>${escapeHtml(commentText)}</i>`,
+      };
+    }
     default:
       return null;
   }
@@ -147,6 +175,15 @@ const buildAndSendEmail = async (board, card, notification, actorUser, notifiabl
         boardLink,
       )}</p>`;
 
+      break;
+    case Notification.Types.MENTION_IN_COMMENT:
+      html = `<p>${t(
+        '%s mentioned you in %s on %s',
+        escapeHtml(actorUser.name),
+        cardLink,
+        boardLink,
+      )}</p><p>${escapeHtml(notification.data.text)}</p>`;
+
       break;
     default:
       return;
@@ -186,9 +223,11 @@ module.exports = {
       values.userId = values.user.id;
     }
 
-    const isCommentCard = values.type === Notification.Types.COMMENT_CARD;
+    const isCommentRelated =
+      values.type === Notification.Types.COMMENT_CARD ||
+      values.type === Notification.Types.MENTION_IN_COMMENT;
 
-    if (isCommentCard) {
+    if (isCommentRelated) {
       values.commentId = values.comment.id;
     } else {
       values.actionId = values.action.id;
@@ -217,7 +256,7 @@ module.exports = {
           boards: [inputs.board],
           lists: [inputs.list],
           cards: [values.card],
-          ...(isCommentCard
+          ...(isCommentRelated
             ? {
                 comments: [values.comment],
               }

server/api/models/Notification.js

@@ -14,6 +14,7 @@ const Types = {
   MOVE_CARD: 'moveCard',
   COMMENT_CARD: 'commentCard',
   ADD_MEMBER_TO_CARD: 'addMemberToCard',
+  MENTION_IN_COMMENT: 'mentionInComment',
 };
 
 module.exports = {

server/config/locales/en-GB.json

@@ -7,8 +7,10 @@
   "This is a *test* **markdown** `message`!": "This is a *test* **markdown** `message`!",
   "This is a <i>test</i> <b>html</b> <code>message</code>": "This is a <i>test</i> <b>html</b> <code>message</code>",
   "You Were Added to Card": "Your Were Added to Card",
+  "You Were Mentioned in Comment": "You Were Mentioned in Comment",
   "%s added you to %s on %s": "%s added you to %s on %s",
   "%s created %s in %s on %s": "%s created %s in %s on %s",
   "%s left a new comment to %s on %s": "%s left a new comment to %s on %s",
+  "%s mentioned you in %s on %s": "%s mentioned you in %s on %s",
   "%s moved %s from %s to %s on %s": "%s moved %s from %s to %s on %s"
 }

server/config/locales/en-US.json

@@ -7,8 +7,10 @@
 	"This is a *test* **markdown** `message`!": "This is a *test* **markdown** `message`!",
 	"This is a <i>test</i> <b>html</b> <code>message</code>": "This is a <i>test</i> <b>html</b> <code>message</code>",
 	"You Were Added to Card": "Your Were Added to Card",
+	"You Were Mentioned in Comment": "You Were Mentioned in Comment",
 	"%s added you to %s on %s": "%s added you to %s on %s",
 	"%s created %s in %s on %s": "%s created %s in %s on %s",
 	"%s left a new comment to %s on %s": "%s left a new comment to %s on %s",
+	"%s mentioned you in %s on %s": "%s mentioned you in %s on %s",
 	"%s moved %s from %s to %s on %s": "%s moved %s from %s to %s on %s"
 }

server/config/locales/ru-RU.json

@@ -7,8 +7,10 @@
 	"This is a *test* **markdown** `message`!": "Это *тестовое* **markdown** `сообщение`!",
 	"This is a <i>test</i> <b>html</b> <code>message</code>": "Это <i>тестовое</i> <b>html</b> <code>сообщение</code>",
 	"You Were Added to Card": "Вы были добавлены к карточке",
+	"You Were Mentioned in Comment": "Вы были упомянуты в комментарии",
 	"%s added you to %s on %s": "%s добавил(а) вас к %s на %s",
 	"%s created %s in %s on %s": "%s создал(а) %s в %s на %s",
 	"%s left a new comment to %s on %s": "%s оставил(а) новый комментарий к %s на %s",
+	"%s mentioned you in %s on %s": "%s упомянул(а) вас в %s на %s",
 	"%s moved %s from %s to %s on %s": "%s переместил(а) %s из %s в %s на %s"
 }

server/utils/formatters.js

@@ -0,0 +1,7 @@
+const MENTIONS_REGEX = /@\[(.*?)\]\(.*?\)/g;
+
+const formatTextWithMentions = (text) => text.replace(MENTIONS_REGEX, '@$1');
+
+module.exports = {
+  formatTextWithMentions,
+};