package main

import (
	"fmt"
	"io"
	"os"
)

const usage = `vpnportal — VPN-Konfig-Portal für OPNsense

Aufruf:
  vpnportal serve   [--config PFAD]   Portal starten (Default)
  vpnportal check   [--config PFAD] [--test-auth BENUTZER]
  vpnportal version

Optionen:
  --config PFAD   Pfad zur Konfigurationsdatei (Default: /etc/vpnportal/config.yaml)
`

func main() {
	os.Exit(run(os.Args[1:], os.Stdout, os.Stderr))
}

func run(args []string, stdout, stderr io.Writer) int {
	cmd := "serve"
	rest := args
	if len(args) > 0 && len(args[0]) > 0 && args[0][0] != '-' {
		cmd, rest = args[0], args[1:]
	}

	switch cmd {
	case "version":
		fmt.Fprintln(stdout, versionString())
		return 0
	case "serve":
		return runServe(rest, stdout, stderr)
	case "check":
		return runCheck(rest, stdout, stderr)
	case "help", "-h", "--help":
		fmt.Fprint(stdout, usage)
		return 0
	default:
		fmt.Fprintf(stderr, "Unbekanntes Kommando: %s\n\n%s", cmd, usage)
		return 2
	}
}