from __future__ import annotations

from django.http import HttpRequest, HttpResponse, HttpResponseNotAllowed
from django.shortcuts import redirect, render
from django.utils.http import url_has_allowed_host_and_scheme

from apps.core.consent import ConsentService


def consent_view(request: HttpRequest) -> HttpResponse:
    if request.method != "POST":
        return HttpResponseNotAllowed(["POST"])

    analytics = False
    advertising = False

    if request.POST.get("accept_all"):
        analytics = True
        advertising = True
    elif request.POST.get("reject_all"):
        analytics = False
        advertising = False
    else:
        analytics = request.POST.get("analytics") in {"true", "1", "on"}
        advertising = request.POST.get("advertising") in {"true", "1", "on"}

    target = request.META.get("HTTP_REFERER", "/")
    if not url_has_allowed_host_and_scheme(
        url=target,
        allowed_hosts={request.get_host()},
        require_https=request.is_secure(),
    ):
        target = "/"
    response = redirect(target)
    ConsentService.set_consent(response, analytics=analytics, advertising=advertising)
    return response


def robots_txt(request: HttpRequest) -> HttpResponse:
    return render(request, "core/robots.txt", content_type="text/plain")