import logging

logger = logging.getLogger(__name__)

SKIP_PATHS = (
    "/static/",
    "/media/",
    "/admin/",
    "/accounts/token/",
    "/accounts/token/refresh/",
    "/accounts/login/",
    "/accounts/logout/",
    "/api/",
    "/health/",
    "/__debug__/",
    "/favicon.ico",
    "/robots.txt",
)

METHOD_TO_ACTIVITY = {
    "POST": "create",
    "PUT": "update",
    "PATCH": "update",
    "DELETE": "delete",
}


class ActivityLoggingMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        response = self.get_response(request)
        self._log_activity(request, response)
        return response

    def _log_activity(self, request, response):
        user = getattr(request, "user", None)
        if not user or not user.is_authenticated:
            return

        method = request.method
        if method not in METHOD_TO_ACTIVITY:
            return

        path = request.path
        for skip in SKIP_PATHS:
            if path.startswith(skip):
                return

        if response.status_code >= 400:
            return

        try:
            from django.urls import resolve

            match = resolve(path)
        except Exception:
            return

        app_name = match.app_name or ""
        url_name = match.url_name or ""
        kwargs = match.kwargs or {}

        if not app_name and not url_name:
            return

        module = self._derive_module(app_name, url_name)
        description = self._build_description(method, url_name, kwargs)

        try:
            from apps.accounts.services import StaffActivityService

            StaffActivityService.log(
                user=user,
                activity_type=METHOD_TO_ACTIVITY[method],
                description=description,
                module=module,
                action=url_name or path,
                request=request,
            )
        except Exception:
            logger.debug("ActivityLoggingMiddleware: failed to log", exc_info=True)

    def _derive_module(self, app_name, url_name):
        if app_name:
            return app_name
        if url_name and ":" in url_name:
            return url_name.split(":")[0]
        return ""

    def _build_description(self, method, url_name, kwargs):
        parts = [f"{method}"]

        if url_name:
            parts.append(url_name.replace("-", " ").replace("_", " "))

        obj_id = kwargs.get("pk") or kwargs.get("id") or kwargs.get("uuid")
        if obj_id:
            parts.append(f"(#{str(obj_id)[:8]})")

        return " ".join(parts)