"""
FastAPI middleware that logs method, path, status code, and duration for every request.
"""
import time
import uuid

from starlette.middleware.base import BaseHTTPMiddleware
from starlette.requests import Request
from starlette.responses import Response

import logging

logger = logging.getLogger("cbpoa.request")


class RequestLoggerMiddleware(BaseHTTPMiddleware):
    async def dispatch(self, request: Request, call_next) -> Response:
        request_id = str(uuid.uuid4())
        request.state.request_id = request_id

        start = time.perf_counter()
        response = await call_next(request)
        duration_ms = round((time.perf_counter() - start) * 1000, 2)

        logger.info(
            "%s %s -> %s (%.2fms)",
            request.method,
            request.url.path,
            response.status_code,
            duration_ms,
            extra={
                "request_id": request_id,
                "method": request.method,
                "path": request.url.path,
                "status_code": response.status_code,
                "duration_ms": duration_ms,
            },
        )
        return response