package time

import (
	"fmt"
	"time"
)

var f = fmt.Println

func epoch() {
	now := time.Now().UTC()

	f("Epoch seconds:", now.Unix())
	f("Epoch milli:", now.UnixMilli())
	f("Epoch nano:", now.UnixNano())

	f("Custom time from epoch:", time.Unix(now.Unix(), 0))
	f("Custom time from epoch:", time.Unix(0, now.UnixNano()))
}

func Time() {
	now := time.Now().UTC()
	f(now)

	xmasTime := time.Date(2023, 12, 25, 9, 0, 0, 0, time.UTC)
	f("XMAS =>", xmasTime)

	f("Year:", xmasTime.Year())
	f("Month:", xmasTime.Month())
	f("Day:", xmasTime.Day())
	f("Hour:", xmasTime.Hour())
	f("Minute:", xmasTime.Minute())
	f("Second:", xmasTime.Second())
	f("Nanosecond:", xmasTime.Nanosecond())
	f("Weekday:", xmasTime.Weekday())

	f("Is Xmas before now?", xmasTime.Before(now))
	f("Is Xmas after now?", xmasTime.After(now))
	f("Is Xmas same as now?", xmasTime.Equal(now))

	diff := now.Sub(xmasTime)
	f(diff)

	f(diff.Hours())
	f(diff.Minutes())
	f(diff.Seconds())
	f(diff.Nanoseconds())

	f(xmasTime.Add(diff))
	f(now.Add(-diff))

	epoch()
}