package reverseproxy

import (
	"net/http"
	"net/http/httputil"
	"net/url"

	"github.com/rs/zerolog/log"
)

// New takes target host and creates a reverse proxy.
func New(targetHost string) (*httputil.ReverseProxy, error) {
	u, err := url.Parse(targetHost)
	if err != nil {
		return nil, err
	}
	p := httputil.NewSingleHostReverseProxy(u)
	p.ErrorHandler = func(writer http.ResponseWriter, request *http.Request, err error) {
		log.Error().Err(err).Msg("admin web proxy error")
	}
	return p, nil
}

// ProxyRequestHandler handles the http request using proxy
func ProxyRequestHandler(proxy *httputil.ReverseProxy) func(http.ResponseWriter, *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		proxy.ServeHTTP(w, r)
	}
}