fix(routing): unify route based architecture

ts/core/utils/websocket-utils.ts

@@ -0,0 +1,81 @@
+/**
+ * WebSocket utility functions
+ */
+
+/**
+ * Type for WebSocket RawData that can be different types in different environments
+ * This matches the ws library's type definition
+ */
+export type RawData = Buffer | ArrayBuffer | Buffer[] | any;
+
+/**
+ * Get the length of a WebSocket message regardless of its type
+ * (handles all possible WebSocket message data types)
+ * 
+ * @param data - The data message from WebSocket (could be any RawData type)
+ * @returns The length of the data in bytes
+ */
+export function getMessageSize(data: RawData): number {
+  if (typeof data === 'string') {
+    // For string data, get the byte length
+    return Buffer.from(data, 'utf8').length;
+  } else if (data instanceof Buffer) {
+    // For Node.js Buffer
+    return data.length;
+  } else if (data instanceof ArrayBuffer) {
+    // For ArrayBuffer
+    return data.byteLength;
+  } else if (Array.isArray(data)) {
+    // For array of buffers, sum their lengths
+    return data.reduce((sum, chunk) => {
+      if (chunk instanceof Buffer) {
+        return sum + chunk.length;
+      } else if (chunk instanceof ArrayBuffer) {
+        return sum + chunk.byteLength;
+      }
+      return sum;
+    }, 0);
+  } else {
+    // For other types, try to determine the size or return 0
+    try {
+      return Buffer.from(data).length;
+    } catch (e) {
+      console.warn('Could not determine message size', e);
+      return 0;
+    }
+  }
+}
+
+/**
+ * Convert any raw WebSocket data to Buffer for consistent handling
+ * 
+ * @param data - The data message from WebSocket (could be any RawData type)
+ * @returns A Buffer containing the data
+ */
+export function toBuffer(data: RawData): Buffer {
+  if (typeof data === 'string') {
+    return Buffer.from(data, 'utf8');
+  } else if (data instanceof Buffer) {
+    return data;
+  } else if (data instanceof ArrayBuffer) {
+    return Buffer.from(data);
+  } else if (Array.isArray(data)) {
+    // For array of buffers, concatenate them
+    return Buffer.concat(data.map(chunk => {
+      if (chunk instanceof Buffer) {
+        return chunk;
+      } else if (chunk instanceof ArrayBuffer) {
+        return Buffer.from(chunk);
+      }
+      return Buffer.from(chunk);
+    }));
+  } else {
+    // For other types, try to convert to Buffer or return empty Buffer
+    try {
+      return Buffer.from(data);
+    } catch (e) {
+      console.warn('Could not convert message to Buffer', e);
+      return Buffer.alloc(0);
+    }
+  }
+}