package config

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"local/args"
	"log"
	"os"
	"strings"
)

var (
	Root string
	Port string
	Head string
	Foot string
)

func init() {
	Refresh()
}

func Refresh() {
	if strings.Contains(fmt.Sprint(os.Args), "-test") {
		return
	}

	as := args.NewArgSet()
	as.Append(args.STRING, "root", "root dir path", "./public")
	as.Append(args.STRING, "port", "port to listen on", "39909")
	as.Append(args.STRING, "wrap", "file with http header/footer", "./wrapper.html")
	if err := as.Parse(); err != nil {
		panic(err)
	}

	wrap := as.Get("wrap").GetString()
	log.Printf("reading %v (%T)", wrap, wrap)
	b, err := ioutil.ReadFile(wrap)
	if err != nil {
		panic(err)
	}
	bs := bytes.Split(b, []byte("{{{}}}"))
	if len(bs) != 2 {
		panic(len(bs))
	}

	Root = as.Get("root").GetString()
	Port = ":" + strings.TrimPrefix(as.Get("port").GetString(), ":")
	Head = string(bs[0])
	Foot = string(bs[1])
}