leadercraft-s/main.go

// NGnius 2020-01-30

package main // leadercraft-server

import (
	"fmt"
	"net/http"
	"os"
	"os/signal"
)

const (
	// Version the current version
	Version = "0.1"
	// Name the program name
	Name = "leadercraft-s"
)

var (
	server    *http.Server
	handler   http.Handler
	port      string
	root      string
	isClosing bool
)

func init() {
	initArgs()
	serverMux := http.NewServeMux()
	serverMux.HandleFunc("/load", boardHandler)
	handler = serverMux
}

func main() {
	parseArgs()
	sqlInitErr := sqlInit()
	if sqlInitErr != nil {
		fmt.Printf("Failed to initialise SQL connection: %s\n", sqlInitErr)
		os.Exit(1)
	}
	// handle interrupt (terminate) signal
	signalChan := make(chan os.Signal, 1)
	signal.Notify(signalChan, os.Interrupt)
	go func() {
		s := <-signalChan
		fmt.Println("Received terminate signal " + s.String())
		isClosing = true
		sqlClose()
		server.Close()
	}()
	server = &http.Server{
		Addr:    ":" + port,
		Handler: handler,
	}
	fmt.Println("Starting on " + server.Addr)
	//fmt.Println(server.ListenAndServe())
	err := server.ListenAndServe()
	if err != nil && !isClosing {
		fmt.Println(err)
	}
}