/*
NNCP -- Node to Node copy, utilities for store-and-forward data exchange
Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

// Generate new NNCP node keys and configuration file
package main

import (
	"flag"
	"fmt"
	"os"

	"go.cypherpunks.ru/nncp/v4"
	"gopkg.in/yaml.v2"
)

func usage() {
	fmt.Fprintf(os.Stderr, nncp.UsageHeader())
	fmt.Fprintln(os.Stderr, "nncp-cfgnew -- generate new configuration and keys\nOptions:")
	flag.PrintDefaults()
}

func main() {
	var (
		version  = flag.Bool("version", false, "Print version information")
		warranty = flag.Bool("warranty", false, "Print warranty information")
	)
	flag.Usage = usage
	flag.Parse()
	if *warranty {
		fmt.Println(nncp.Warranty)
		return
	}
	if *version {
		fmt.Println(nncp.VersionGet())
		return
	}
	nodeOur, err := nncp.NewNodeGenerate()
	if err != nil {
		panic(err)
	}
	noisePub := nncp.ToBase32(nodeOur.NoisePub[:])
	cfg := nncp.CfgYAML{
		Self: &nncp.NodeOurYAML{
			Id:       nodeOur.Id.String(),
			ExchPub:  nncp.ToBase32(nodeOur.ExchPub[:]),
			ExchPrv:  nncp.ToBase32(nodeOur.ExchPrv[:]),
			SignPub:  nncp.ToBase32(nodeOur.SignPub[:]),
			SignPrv:  nncp.ToBase32(nodeOur.SignPrv[:]),
			NoisePub: nncp.ToBase32(nodeOur.NoisePub[:]),
			NoisePrv: nncp.ToBase32(nodeOur.NoisePrv[:]),
		},
		Neigh: map[string]nncp.NodeYAML{
			"self": nncp.NodeYAML{
				Id:       nodeOur.Id.String(),
				ExchPub:  nncp.ToBase32(nodeOur.ExchPub[:]),
				SignPub:  nncp.ToBase32(nodeOur.SignPub[:]),
				NoisePub: &noisePub,
				Exec: map[string][]string{
					"sendmail": []string{nncp.DefaultSendmailPath},
				},
			},
		},
		Spool: nncp.DefaultSpoolPath,
		Log:   nncp.DefaultLogPath,
	}
	raw, err := yaml.Marshal(&cfg)
	if err != nil {
		panic(err)
	}
	fmt.Print(string(raw))
}