package backend

import "net/http"

func AddRequestHeadersForProxy(req *http.Request) {
	req.Header.Set("Connection", "Keep-Alive")
	req.Header.Set("Accept-Language", "de-DE")
	req.Header.Set("Referer", "https://control-center-app.1und1.de")
}

type backendRequestTransport struct {
	underlyingTransport http.RoundTripper
}

func (t *backendRequestTransport) RoundTrip(req *http.Request) (*http.Response, error) {
	nreq := new(http.Request)
	*nreq = *req
	AddRequestHeadersForProxy(nreq)
	return t.underlyingTransport.RoundTrip(nreq)
}

func BackendRequestTransport(t http.RoundTripper) http.RoundTripper {
	if t == nil {
		t = http.DefaultTransport
	}
	return &backendRequestTransport{
		underlyingTransport: t,
	}
}