Refacor electron app and add migrations

electron/cqrs/commands/handlers/updateRoom.ts

@@ -0,0 +1,29 @@
+import { DataSource } from 'typeorm';
+import { RoomEntity } from '../../../entities';
+import { UpdateRoomCommand } from '../../types';
+import {
+  applyUpdates,
+  boolToInt,
+  jsonOrNull,
+  TransformMap
+} from './utils/applyUpdates';
+
+const ROOM_TRANSFORMS: TransformMap = {
+  isPrivate: boolToInt,
+  userCount: (val) => (val ?? 0),
+  permissions: jsonOrNull,
+  channels: jsonOrNull
+};
+
+export async function handleUpdateRoom(command: UpdateRoomCommand, dataSource: DataSource): Promise<void> {
+  const repo = dataSource.getRepository(RoomEntity);
+  const { roomId, updates } = command.payload;
+  const existing = await repo.findOne({ where: { id: roomId } });
+
+  if (!existing)
+    return;
+
+  applyUpdates(existing, updates, ROOM_TRANSFORMS);
+  await repo.save(existing);
+}
+