package xhttp

import (
	"net/http"
	"strings"

	"github.com/sagernet/sing-box/common/xray/net"
	"github.com/sagernet/sing-box/common/xray/signal/done"
)

type httpSession struct {
	uploadQueue *uploadQueue
	// for as long as the GET request is not opened by the client, this will be
	// open ("undone"), and the session may be expired within a certain TTL.
	// after the client connects, this becomes "done" and the session lives as
	// long as the GET request.
	isFullyConnected *done.Instance
}

func parseXForwardedFor(header http.Header) []net.Address {
	xff := header.Get("X-Forwarded-For")
	if xff == "" {
		return nil
	}
	list := strings.Split(xff, ",")
	addrs := make([]net.Address, 0, len(list))
	for _, proxy := range list {
		addrs = append(addrs, net.ParseAddress(proxy))
	}
	return addrs
}

func isValidHTTPHost(request string, config string) bool {
	r := strings.ToLower(request)
	c := strings.ToLower(config)
	if strings.Contains(r, ":") {
		h, _, _ := net.SplitHostPort(r)
		return h == c
	}
	return r == c
}