package httpreverse

import (
	"b612.me/starlog"
	"github.com/spf13/cobra"
	"net/url"
	"os"
	"os/signal"
)

var remote, config string
var addr, key, cert, log string
var port int
var enablessl bool
var host string

func init() {
	Cmd.Flags().StringVarP(&host, "host", "H", "", "host字段")
	Cmd.Flags().StringVarP(&remote, "remote", "r", "", "反向代理地址")
	Cmd.Flags().StringVarP(&config, "config", "C", "", "配置文件地址")
	Cmd.Flags().StringVarP(&addr, "addr", "a", "0.0.0.0", "监听地址")
	Cmd.Flags().StringVarP(&key, "key", "k", "", "ssl key地址")
	Cmd.Flags().StringVarP(&cert, "cert", "c", "", "ssl 证书地址")
	Cmd.Flags().StringVarP(&log, "log", "l", "", "log日志地址")
	Cmd.Flags().BoolVarP(&enablessl, "enable-ssl", "s", false, "启用ssl")
	Cmd.Flags().IntVarP(&port, "port", "p", 8080, "监听端口")
}

var Cmd = &cobra.Command{
	Use:   "hproxy",
	Short: "Http Reverse Proxy(Http反向代理)",
	Run: func(cmd *cobra.Command, args []string) {
		if log != "" {
			starlog.SetLogFile(log, starlog.Std, true)
		}
		if config != "" {
			r, err := Parse(config)
			if err != nil {
				starlog.Errorln(err)
				os.Exit(1)
			}
			go func() {
				sig := make(chan os.Signal)
				signal.Notify(sig, os.Kill, os.Interrupt)
				starlog.Noticeln("Stop Due to Recv Siganl", <-sig)
				r.Close()
			}()
			err = r.Run()
			if err != nil {
				starlog.Errorln("Http Reverse Proxy Exit Error", err)
				os.Exit(2)
			}
			starlog.Infoln("Http Reverse Proxy Exit Normally")
			return
		}
		if remote == "" {
			starlog.Errorln("please enter the reverse url")
			os.Exit(4)
		}
		u, err := url.Parse(remote)
		if err != nil {
			starlog.Errorln(err)
			os.Exit(3)
		}
		reverse := ReverseConfig{
			Name: "web",
			Addr: addr,
			Host: host,
			ReverseURL: map[string]*url.URL{
				"/": u,
			},
			Port:         port,
			UsingSSL:     enablessl,
			Key:          key,
			Cert:         cert,
			XForwardMode: 1,
		}
		go func() {
			sig := make(chan os.Signal)
			signal.Notify(sig, os.Kill, os.Interrupt)
			starlog.Noticeln("Stop Due to Recv Siganl", <-sig)
			reverse.Close()
		}()
		err = reverse.Run()
		if err != nil {
			starlog.Errorln("Http Reverse Proxy Exit Error", err)
			os.Exit(2)
		}
		starlog.Infoln("Http Reverse Proxy Exit Normally")
		return
	},
}