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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 (
	"log"
	"os"

	"spreadspace.org/dolmetschctl/pkg/mixer"
	"spreadspace.org/dolmetschctl/pkg/types"
)

func addLanguage(sm *StateMachine, name types.Language, original, interpreter mixer.Channel) {
	if err := sm.AddLanguage(name, original, interpreter); err != nil {
		log.Printf("adding language '%s' failed: %v", name, err)
		os.Exit(1)
	}
	log.Printf("successfully added language: '%s'", name)
}

func main() {
	log.Println("hello world.")

	// *************************************
	// * initialize core

	m, err := mixer.NewMixer(mixer.Config{DevIn: "ESI MIDIMATE eX MIDI 2", DevOut: "ESI MIDIMATE eX MIDI 1"})
	if err != nil {
		log.Printf("Error opening the mixer: %v", err)
		os.Exit(1)
	}
	defer m.Shutdown()

	log.Printf("successfully connected to mixer!")

	if err = m.Init(); err != nil {
		log.Printf("Error initializeing the mixer: %v", err)
		os.Exit(1)
	}
	log.Printf("mixer successfully initialized!")

	var sm *StateMachine
	if sm, err = NewStateMachine(m); err != nil {
		log.Printf("initializing state machine failed: %v", err)
		os.Exit(1)
	}
	log.Printf("state machine successfully initialized!")

	// TODO: make this configurable
	addLanguage(sm, "en", 0x20, 0x24)
	addLanguage(sm, "de", 0x22, 0x25)

	sm.Start()
	defer sm.Shutdown()

	// *************************************
	// * initialize control interfaces

	var telnet *TelnetInterface
	if telnet, err = NewTelnetInterface("127.0.0.1:1234", sm); err != nil {
		log.Printf("creating telnet interface failed: %v", err)
		os.Exit(1)
	}
	log.Printf("telnet interface successfully initialized!")

	var web *WebInterface
	if web, err = NewWebInterface("127.0.0.1:8234", "./web-static", sm); err != nil {
		log.Printf("creating web interface failed: %v", err)
		os.Exit(1)
	}
	log.Printf("web interface successfully initialized!")

	// *************************************
	// * run control interfaces

	stop := make(chan bool)

	go func() {
		log.Printf("starting telnet interface")
		if err = telnet.Run(); err != nil {
			log.Printf("running telnet interface failed: %v", err)
		}
		stop <- true
	}()

	go func() {
		log.Printf("starting web interface")
		if err = web.Run(); err != nil {
			log.Printf("running web interface failed: %v", err)
		}
		stop <- true
	}()

	<-stop
	log.Printf("at least one control interface has stopped - bringing down the whole process")
}