package main

import (
	"flag"
	"fmt"
	"net/http"
	"os"
	"strings"

	login "git.wens.org.uk/login/internal"
)

func main() {
	parseArgs()
	login.SetUpHandlers()

	fmt.Println("login server listening on", login.Address)
	if err := http.ListenAndServe(login.Address, nil); err != nil {
		fmt.Fprintln(os.Stderr, err.Error())
		os.Exit(1)
	}
}

func parseArgs() {
	db := flag.String("d", login.DbAddress, "address for db server")
    flag.Parse()
    
    if login.DbAddress != *db {
        if !strings.HasPrefix(*db, "http://") {
            *db = "http://" + *db
        }
        login.DbAddress = *db
    }

    args := flag.Args()
    if len(args) == 1 {
        login.Address = os.Args[0]
    }

    if len(args) > 1 {
        fmt.Fprintln(os.Stderr, "too many arguments. usage: <command> [options] [address]")
        flag.PrintDefaults()
        os.Exit(1)
    }

    if login.JwtSecret == "" {
        fmt.Println("Warning: JWT secret is empty string")
    }
}