package timeutil

import (
	"errors"
	"fmt"
	"strings"
	"time"
)

func Parse(timeStrInput string) (res time.Time, err error) {
	if len(timeStrInput) > 0 {
		timeStr := strings.ReplaceAll(timeStrInput, "/", "")
		timeStr = strings.ReplaceAll(timeStr, "-", "")
		if len(timeStr) == 8 {
			res, err = time.Parse("20060102", timeStr)
		} else if len(timeStr) == 11 {
			res, err = time.Parse("20060102 15", timeStr)
		} else if len(timeStr) == 14 {
			res, err = time.Parse("20060102 15:04", timeStr)
		} else if len(timeStr) == 17 {
			res, err = time.Parse("20060102 15:04:05", timeStr)
		} else if len(timeStr) == 21 {
			res, err = time.Parse("20060102 15:04:05.000", timeStr)
		} else {
			err = errors.New("bad value for timeStr")
		}
		if err != nil {
			timeStr = strings.ReplaceAll(timeStrInput, "-", "/")
			if len(timeStr) == 8 {
				res, err = time.Parse("2006/1/2", timeStr)
			} else if len(timeStr) == 9 {
				res, err = time.Parse("2006/01/2", timeStr)
				if err != nil {
					res, err = time.Parse("2006/1/02", timeStr)
				}
			} else if len(timeStr) == 11 {
				res, err = time.Parse("2006/1/2 15", timeStr)
			} else if len(timeStr) == 12 {
				res, err = time.Parse("2006/01/2 15", timeStr)
				if err != nil {
					res, err = time.Parse("2006/1/02 15", timeStr)
				}
			} else if len(timeStr) == 14 {
				res, err = time.Parse("2006/1/2 15:04", timeStr)
			} else if len(timeStr) == 15 {
				res, err = time.Parse("2006/1/02 15:04", timeStr)
				if err != nil {
					res, err = time.Parse("2006/01/2 15:04", timeStr)
				}
			} else if len(timeStr) == 17 {
				res, err = time.Parse("2006/1/2 15:04:05", timeStr)
			} else if len(timeStr) == 18 {
				res, err = time.Parse("2006/1/02 15:04:05", timeStr)
				if err != nil {
					res, err = time.Parse("2006/01/2 15:04:05", timeStr)
				}
			}
		}
	}
	return res, err
}

func SecondsToTime(seconds int) string {
	if seconds <= 0 {
		return "00:00:00"
	}
	hours := seconds / 3600
	seconds = seconds % 3600

	minutes := seconds / 60
	seconds = seconds % 60

	return fmt.Sprintf("%02d:%02d:%02d", hours, minutes, seconds)
}