Show mentioned badges & enable scrolling to mentions in conversations

ts/sql/migrations/83-mentions.ts

@@ -0,0 +1,38 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { Database } from '@signalapp/better-sqlite3';
+import type { LoggerType } from '../../types/Logging';
+
+export default function updateToSchemaVersion83(
+  currentVersion: number,
+  db: Database,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 83) {
+    return;
+  }
+
+  db.transaction(() => {
+    db.exec(
+      `
+      ALTER TABLE messages
+        ADD COLUMN mentionsMe INTEGER NOT NULL DEFAULT 0;
+      
+      -- one which includes story data...
+      CREATE INDEX messages_unread_mentions ON messages
+        (conversationId, readStatus, mentionsMe, isStory, storyId, received_at, sent_at)
+        WHERE readStatus IS NOT NULL;
+      
+      -- ...and one which doesn't, so storyPredicate works as expected
+      CREATE INDEX messages_unread_mentions_no_story_id ON messages
+        (conversationId, readStatus, mentionsMe, isStory, received_at, sent_at)
+        WHERE isStory IS 0 AND readStatus IS NOT NULL;
+      `
+    );
+
+    db.pragma('user_version = 83');
+  })();
+
+  logger.info('updateToSchemaVersion83: success!');
+}

ts/sql/migrations/index.ts

@@ -58,6 +58,7 @@ import updateToSchemaVersion79 from './79-paging-lightbox';
 import updateToSchemaVersion80 from './80-edited-messages';
 import updateToSchemaVersion81 from './81-contact-removed-notification';
 import updateToSchemaVersion82 from './82-edited-messages-read-index';
+import updateToSchemaVersion83 from './83-mentions';
 
 function updateToSchemaVersion1(
   currentVersion: number,
@@ -1982,10 +1983,10 @@ export const SCHEMA_VERSIONS = [
   updateToSchemaVersion77,
   updateToSchemaVersion78,
   updateToSchemaVersion79,
-
   updateToSchemaVersion80,
   updateToSchemaVersion81,
   updateToSchemaVersion82,
+  updateToSchemaVersion83,
 ];
 
 export function updateSchema(db: Database, logger: LoggerType): void {