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path: root/cmd/dolmetschctld/telnet.go
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//
//  dolmetschctl
//
//
//  Copyright (C) 2019 Christian Pointner <equinox@spreadspace.org>
//
//  This file is part of dolmetschctl.
//
//  dolmetschctl 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, either version 3 of the License, or
//  any later version.
//
//  dolmetschctl 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 dolmetschctl. If not, see <http://www.gnu.org/licenses/>.
//

package main

import (
	"fmt"

	"github.com/spreadspace/telgo"
)

type TelnetInterface struct {
	server *telgo.Server
}

func telnetCmdLang(c *telgo.Client, args []string, sm *StateMachine) bool {
	if len(args) != 2 {
		c.Sayln("usage: lang <language>")
		return false
	}
	lang := args[1]
	if lang == "none" {
		lang = ""
	}
	if err := sm.SelectLanguage(Language(lang)); err != nil {
		c.Sayln(fmt.Sprintf("selecting language failed: %v", err))
	}
	return false
}

func telnetQuit(c *telgo.Client, args []string) bool {
	return true
}

func (telnet *TelnetInterface) Run() error {
	return telnet.server.Run()
}

func NewTelnetInterface(addr string, sm *StateMachine) (telnet *TelnetInterface, err error) {
	telnet = &TelnetInterface{}

	cmdlist := make(telgo.CmdList)
	cmdlist["lang"] = func(c *telgo.Client, args []string) bool { return telnetCmdLang(c, args, sm) }
	cmdlist["quit"] = telnetQuit

	telnet.server, err = telgo.NewServer(addr, "dolmetschctl> ", cmdlist, nil)

	return
}