// vim: shiftwidth=4 tabstop=4 noexpandtab

package main

import (
	"log"
	"os"
	"os/signal"
	"syscall"
)

var (
	config RuntimeConfig
	camera Camera
	ipc IpcServer
)

const (
	IPC_SOCKET = "/tmp/birdscan.sock"  // FIXME
)

func main() {

	// disable log timestamp because systemd takes care of that
	log.SetFlags(0)

	// parse flags and read config
	config = GetRuntimeConfig()

	// create services
	camera = NewCamera()   // main service
	ipc = NewIpcServer()   // inter process communication
	web := NewWebServer()  // web frontend

	// allow graceful exit
	var listener = make(chan os.Signal)
	signal.Notify(listener, syscall.SIGTERM)
	signal.Notify(listener, syscall.SIGINT)
	go func() {
		signal := <-listener
		log.Printf("Got signal '%+v'", signal)
		ipc.Cleanup()
		os.Exit(0)
	}()

	// start secondary services
	go ipc.Run(IPC_SOCKET)
	go PicameraSubprocess(IPC_SOCKET)  // subprocess to use Python picamera
	go web.run()

	// start main service
	camera.run()
}