package main

import (
	"os"
	"os/signal"
	"sync"
	"syscall"

	log "github.com/sirupsen/logrus"
	"github.com/urfave/cli/v2"
	"reichard.io/bbank/server"
)

type UTCFormatter struct {
	log.Formatter
}

func (u UTCFormatter) Format(e *log.Entry) ([]byte, error) {
	e.Time = e.Time.UTC()
	return u.Formatter.Format(e)
}

func main() {
	log.SetFormatter(UTCFormatter{&log.TextFormatter{FullTimestamp: true}})

	app := &cli.App{
		Name:  "AnthoLume",
		Usage: "A self hosted e-book progress tracker.",
		Commands: []*cli.Command{
			{
				Name:    "serve",
				Aliases: []string{"s"},
				Usage:   "Start AnthoLume web server.",
				Action:  cmdServer,
			},
		},
	}
	err := app.Run(os.Args)
	if err != nil {
		log.Fatal(err)
	}
}

func cmdServer(ctx *cli.Context) error {
	log.Info("Starting AnthoLume Server")

	// Create Channel
	wg := sync.WaitGroup{}
	done := make(chan struct{})
	interrupt := make(chan os.Signal, 1)
	signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)

	// Start Server
	server := server.NewServer()
	server.StartServer(&wg, done)

	// Wait & Close
	<-interrupt
	server.StopServer(&wg, done)

	// Stop Server
	os.Exit(0)

	return nil
}