Include @mentioned names in search results

ts/sql/migrations/84-all-mentions.ts

@@ -0,0 +1,58 @@
+// 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 updateToSchemaVersion84(
+  currentVersion: number,
+  db: Database,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 84) {
+    return;
+  }
+
+  db.transaction(() => {
+    const selectMentionsFromMessages = `
+      SELECT messages.id, bodyRanges.value ->> 'mentionUuid' as mentionUuid, bodyRanges.value ->> 'start' as start, bodyRanges.value ->> 'length' as length 
+      FROM messages, json_each(messages.json ->> 'bodyRanges') as bodyRanges
+      WHERE bodyRanges.value ->> 'mentionUuid' IS NOT NULL
+    `;
+
+    db.exec(`
+      DROP TABLE IF EXISTS mentions;
+
+      CREATE TABLE mentions (
+        messageId REFERENCES messages(id) ON DELETE CASCADE,
+        mentionUuid STRING,
+        start INTEGER,
+        length INTEGER
+      );
+
+      CREATE INDEX mentions_uuid ON mentions (mentionUuid);
+
+      INSERT INTO mentions (messageId, mentionUuid, start, length)
+      ${selectMentionsFromMessages};
+
+      CREATE TRIGGER messages_on_insert_insert_mentions AFTER INSERT ON messages
+      BEGIN
+        INSERT INTO mentions (messageId, mentionUuid, start, length)
+        ${selectMentionsFromMessages} 
+        AND messages.id = new.id;
+      END;
+
+      CREATE TRIGGER messages_on_update_update_mentions AFTER UPDATE ON messages
+      BEGIN
+        DELETE FROM mentions WHERE messageId = new.id;
+        INSERT INTO mentions (messageId, mentionUuid, start, length)
+        ${selectMentionsFromMessages} 
+        AND messages.id = new.id;
+      END;
+    `);
+
+    db.pragma('user_version = 84');
+  })();
+
+  logger.info('updateToSchemaVersion84: success!');
+}