package main

import (
	"context"
	"os"
	"time"

	"github.com/gen2brain/beeep"
	"github.com/schollz/progressbar/v3"
)

func main() {
	d, err := time.ParseDuration(os.Args[1])
	if err != nil {
		panic(err)
	}

	deadline := time.Now().Add(d)
	ctx, can := context.WithDeadline(context.Background(), deadline)
	defer can()

	n := int64(time.Until(deadline) / time.Second)
	bar := progressbar.Default(n)
	c := time.NewTicker(time.Second)
	defer c.Stop()
	func() {
		for {
			select {
			case <-c.C:
			case <-ctx.Done():
				return
			}
			bar.Add(1)
		}
	}()
	bar.Finish()
	bar.Exit()

	msg := "alerting after " + d.String()
	beeep.Alert(os.Args[0], msg, "/dev/null")
	time.Sleep(time.Second)
}