import time
from fastapi import FastAPI, Request
from fastapi.responses import HTMLResponse

app = FastAPI()

# Global counter to track total requests
request_count = 0

@app.middleware("http")
async def count_requests(request: Request, call_next):
    global request_count
    request_count += 1
    start_time = time.time()
    
    response = await call_next(request)
    
    process_time = (time.time() - start_time) * 1000
    response.headers["X-Process-Time"] = f"{process_time:.2f}ms"
    return response

# 3. Health Endpoint required by the task
@app.get("/health")
def health_check():
    return {"status": "healthy", "requests": request_count}

# 5. Dashboard Endpoint serving the HTML file
@app.get("/", response_class=HTMLResponse)
def get_dashboard():
    with open("dashboard.html", "r", encoding="utf-8") as f:
        return f.read()