add half-working client

main.py

@@ -1,5 +1,5 @@
-from fastapi import FastAPI, Request, WebSocket, WebSocketDisconnect, BackgroundTasks, HTTPException
-from fastapi.responses import HTMLResponse, JSONResponse, FileResponse
+from fastapi import FastAPI, File, Request, WebSocket, WebSocketDisconnect, BackgroundTasks, HTTPException
+from fastapi.responses import JSONResponse, FileResponse
 import logging
 import uvicorn
 from typing import Dict, List, Any
@@ -55,7 +55,7 @@ class ConnectionManager:
 
     def json_to_binary(self, json_str: str):
         json_bytes = json_str.encode('utf-8')
-        json_length = len(json_bytes)
+        json_length = len(json_bytes) & 0xFFFFFFFF
         
         # 4-byte unsigned integer (uint32)
         length_bytes = struct.pack('!I', json_length)
@@ -100,26 +100,24 @@ class ConnectionManager:
 
 manager = ConnectionManager()
 
-# Static files
-def read_file(filepath: str) -> str:
-    with open(filepath, "r", encoding="utf-8") as f:
-        return f.read()
-
-@dataclass
-class StaticFiles:
-    index_html: str = read_file("static/index.html")
-    script_js: str = read_file("static/script.js")
-
 @app.get("/presentation/")
 async def presentation_index(_: Request):
-    return HTMLResponse(status_code=200, content=StaticFiles.index_html, media_type="text/html")
+    return FileResponse(status_code=200, path="static/index.html", media_type="text/html")
 
 @app.get("/presentation/script.js")
 async def presentation_script(_: Request):
-    return HTMLResponse(
-        status_code=200, content=StaticFiles.script_js, media_type="text/javascript"
+    return FileResponse(
+        status_code=200, path="static/script.js", media_type="text/javascript"
     )
 
+@app.get("/presentation/style.css")
+async def presentation_style(_: Request):
+    return FileResponse(status_code=200, path="static/style.css", media_type="text/css")
+
+@app.get("/presentation/files/{file_path:path}")
+async def presentation_file(file_path: str):
+    return FileResponse(status_code=200, path=f"static/{file_path}")
+
 # Endpoints
 @app.post("/control")
 async def control_endpoint(request: Request):