package config

import (
	"fmt"
	"time"
)

/*
	etimef := func(e *forgepb.Set) string {
		etime := e.Etime.AsTime()
		s := etime.Format("2006/01/02 15:04")
		if strings.HasPrefix(s, "1970/") {
			// just show a blank if it's not set
			return ""
		}
		return s
	}
	t.AddStringFunc("etime", etimef)
*/

/*
	ctimef := func(p *forgepb.Set) string {
		ctime := p.Ctime.AsTime()
		return ctime.Format("2006/01/02 15:04")
	}
}
*/

// This isn't for the marketing department
// so this isn't going to use 'MiB' and 'GiB'
func HumanFormatBytes(b int) string {
	if b < 2000 {
		return fmt.Sprintf("%d B", b)
	}

	kb := int(b / 1024)
	if kb < 2000 {
		return fmt.Sprintf("%d KB", kb)
	}

	mb := int(b / (1024 * 1024))
	if mb < 2000 {
		return fmt.Sprintf("%d MB", mb)
	}

	gb := int(b / (1024 * 1024 * 1024))
	if gb < 2000 {
		return fmt.Sprintf("%d GB", gb)
	}

	tb := int(b / (1024 * 1024 * 1024 * 1024))
	return fmt.Sprintf("%d TB", tb)
}

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 ?
	}
	if ms > 0 {
		result += fmt.Sprintf("%dms", ms)
		return result
	}

	// report in milliseconds
	mc := int(d.Microseconds())
	if mc > 0 {
		result += fmt.Sprintf("%dmc", mc)
		return result
	}

	ns := int(d.Nanoseconds())
	result += fmt.Sprintf("%dns", ns)
	return result
}