package shell

import (
	"fmt"
	"strconv"
	"strings"
	"time"

	"go.wit.com/log"
)

// converts a git for-each-ref date. "Wed Feb 7 10:13:38 2024 -0600"
func getGitDateStamp(gitdefault string) (time.Time, string, string) {
	// now := time.Now().Format("Wed Feb 7 10:13:38 2024 -0600")
	const gitLayout = "Mon Jan 2 15:04:05 2006 -0700"
	tagTime, err := time.Parse(gitLayout, gitdefault)
	if err != nil {
		log.Warn("GOT THIS IN PARSE AAA." + gitdefault + ".AAA")
		log.Warn(err)
		return time.Now(), "Feb 1 12:34:56 1978 -0600", ""
	}
	return tagTime, gitdefault, GetDurationStamp(tagTime)
}
func getRawDateStamp(raw string) (time.Time, string, string) {
	parts := strings.Split(raw, " ")
	if len(parts) == 0 {
		// raw was blank here
		// return "Jan 4 1977", "40y" // eh, why not. it'll be easy to grep for this
		return time.Now(), "Jan 4 1977", "40y" // eh, why not. it'll be easy to grep for this
	}
	i, err := strconv.ParseInt(parts[0], 10, 64) // base 10 string, return int64
	if err != nil {
		log.Warn("Error converting timestamp:", raw)
		log.Warn("Error converting timestamp err =", err)
		return time.Now(), "", ""
	}

	// Parse the Unix timestamp into a time.Time object
	gitTagDate := time.Unix(i, 0)
	return gitTagDate, gitTagDate.UTC().Format("2006/01/02 15:04:05 UTC"), GetDurationStamp(gitTagDate)
}

func GetDurationStamp(t time.Time) string {

	// Get the current time
	currentTime := time.Now()

	// Calculate the duration between t current time
	duration := currentTime.Sub(t)

	return FormatDuration(duration)
}

func FormatDuration(d time.Duration) string {
	result := ""

	// check if it's more than a year
	years := int(d.Hours()) / (24 * 365)
	if years > 0 {
		result += fmt.Sprintf("%dy ", years)
		return result
	}

	// check if it's more than a day
	days := int(d.Hours()) / 24
	if days > 0 {
		result += fmt.Sprintf("%dd ", days)
		return result
	}

	// check if it's more than an hour
	hours := int(d.Hours()) % 24
	if hours > 0 {
		result += fmt.Sprintf("%dh ", hours)
		return result
	}

	// check if it's more than a minute
	minutes := int(d.Minutes()) % 60
	if minutes > 0 {
		result += fmt.Sprintf("%dm ", minutes)
		return result
	}

	// check if it's more than a second
	seconds := int(d.Seconds()) % 60
	if seconds > 0 {
		result += fmt.Sprintf("%ds", seconds)
		return result
	}

	// report in milliseconds
	ms := int(d.Milliseconds())
	if ms > 100 {
		// todo: print .3s, etc ?
	}
	result += fmt.Sprintf("%dms", ms)
	return result
}