broke down ws

src/ws/state/status/handler.ts

@@ -0,0 +1,70 @@
+import { Logger } from '@nestjs/common';
+import type { AuthenticatedSocket } from '../../../types/socket';
+import { UserStatusDto } from '../../dto/user-status.dto';
+import { WS_EVENT } from '../ws-events';
+import { Validator } from '../utils/validation';
+import { Throttler } from '../utils/throttling';
+import { Broadcaster } from '../utils/broadcasting';
+
+const USER_STATUS_BROADCAST_THROTTLING_MS = 200;
+
+export class StatusHandler {
+  private readonly logger = new Logger(StatusHandler.name);
+
+  constructor(
+    private readonly broadcaster: Broadcaster,
+    private readonly throttler: Throttler,
+  ) {}
+
+  async handleClientReportUserStatus(
+    client: AuthenticatedSocket,
+    data: UserStatusDto,
+  ) {
+    Validator.validateUser(client);
+
+    const currentUserId = client.data.userId;
+
+    if (!currentUserId) {
+      // User has not initialized yet
+      return;
+    }
+
+    // Do not broadcast user status if user has no active doll
+    if (!client.data.activeDollId) {
+      return;
+    }
+
+    if (
+      this.throttler.isThrottled(
+        currentUserId,
+        USER_STATUS_BROADCAST_THROTTLING_MS,
+      )
+    ) {
+      return;
+    }
+
+    // Broadcast to online friends
+    const friends = client.data.friends;
+    if (friends) {
+      try {
+        const payload = {
+          userId: currentUserId,
+          status: data,
+        };
+        await this.broadcaster.broadcastToFriends(
+          friends,
+          WS_EVENT.FRIEND_USER_STATUS,
+          payload,
+        );
+        this.logger.debug(
+          `Broadcasted user status to friends for user ${currentUserId}`,
+        );
+      } catch (error) {
+        this.logger.error(
+          `Failed to broadcast user status for user ${currentUserId}: ${(error as Error).message}`,
+          (error as Error).stack,
+        );
+      }
+    }
+  }
+}