package tools

import (
	"fmt"
	"strconv"
	"time"
)

// exported functions
func GetDate() Date {
	return newDate()
}

func GetFormattedDate() string {
	return newDate().Format()
}

func (date Date) Format() string {
	return date.Day + "." + date.Month + "." + date.Year + " " + date.Hour + ":" + date.Minute + ":" + date.Second
}

func Timestamp() time.Time {
	return time.Now()
}

func DifferenceTime(timestamp time.Time) int {
	return int(time.Since(timestamp).Milliseconds())
}

func DifferenceMilliseconds(timestamp time.Time) string {
	return strconv.Itoa(DifferenceTime(timestamp)) + "ms"
}

func LogTimestamp() int64 {
	return time.Now().UnixMilli()
}

func LogDifference(timestamp int64) int {
	return int(time.Now().UnixMilli() - timestamp)
}

func LogDifferenceMilliseconds(timestamp int64) string {
	return strconv.Itoa(LogDifference(timestamp)) + "ms"
}

// unexported functions
func newDate() Date {
	now := time.Now()
	day := fmt.Sprint(now.Day())
	if len(day) < 2 {
		day = "0" + day
	}
	month := fmt.Sprint(int(now.Month()))
	if len(month) < 2 {
		month = "0" + month
	}
	year := fmt.Sprint(now.Year())
	hour := fmt.Sprint(now.Hour())
	if len(hour) < 2 {
		hour = "0" + hour
	}
	minute := fmt.Sprint(now.Minute())
	if len(minute) < 2 {
		minute = "0" + minute
	}
	second := fmt.Sprint(now.Second())
	if len(second) < 2 {
		second = "0" + second
	}
	return Date{
		Day:    day,
		Month:  month,
		Year:   year,
		Hour:   hour,
		Minute: minute,
		Second: second,
	}
}

// struct(s)
type Date struct {
	Day    string
	Month  string
	Year   string
	Hour   string
	Minute string
	Second string
}