Optimize updating call unread count

ts/sql/migrations/1160-optimize-calls-unread-count.ts

@@ -0,0 +1,36 @@
+// Copyright 2024 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+import type { Database } from '@signalapp/better-sqlite3';
+import type { LoggerType } from '../../types/Logging';
+import { sql, sqlConstant } from '../util';
+import { CallDirection, CallStatusValue } from '../../types/CallDisposition';
+
+export const version = 1160;
+
+const CALL_STATUS_MISSED = sqlConstant(CallStatusValue.Missed);
+const CALL_DIRECTION_INCOMING = sqlConstant(CallDirection.Incoming);
+
+export function updateToSchemaVersion1160(
+  currentVersion: number,
+  db: Database,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 1160) {
+    return;
+  }
+
+  db.transaction(() => {
+    const [query] = sql`
+      DROP INDEX IF EXISTS callsHistory_incoming_missed;
+
+      CREATE INDEX callsHistory_incoming_missed
+        ON callsHistory (callId, status, direction)
+        WHERE status IS ${CALL_STATUS_MISSED}
+          AND direction IS ${CALL_DIRECTION_INCOMING};
+    `;
+    db.exec(query);
+
+    db.pragma('user_version = 1160');
+  })();
+  logger.info('updateToSchemaVersion1160: success!');
+}