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time.go
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time.go
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package textkit
import (
"fmt"
"strings"
"time"
)
// TimeAgo returns a short time ago string
func TimeAgo(t time.Time) string {
return timeago(t, time.Now())
}
// TimeAgoUTC returns a short time ago string for an UTC time
func TimeAgoUTC(t time.Time) string {
return timeago(t.UTC(), time.Now().UTC())
}
func timeago(t time.Time, now time.Time) string {
diff := now.Sub(t)
prefix := ""
if diff < 0 {
diff = 0 - diff
prefix = "-"
}
v := ""
if diff < time.Minute*3 {
v = "just now"
} else if diff < time.Minute*60 {
v = fmt.Sprintf("%v minutes ago", int(diff/time.Minute))
} else if diff < time.Hour*48 {
h := int(diff / time.Hour)
hour := fmt.Sprintf("%.1f", float64(diff)/float64(time.Hour))
if h >= 5 {
hour = fmt.Sprintf("%v", int(diff/time.Hour))
}
if h == 1 {
if strings.HasSuffix(hour, ".0") {
v = fmt.Sprintf("%v hour ago", h)
} else {
v = fmt.Sprintf("%v hour ago", hour)
}
} else {
if strings.HasSuffix(hour, ".0") {
v = fmt.Sprintf("%v hours ago", h)
} else {
v = fmt.Sprintf("%v hours ago", hour)
}
}
} else {
v = fmt.Sprintf("%v days ago", int(diff/(time.Hour*24)))
}
return prefix + v
}
// TimeStamp returns an absolute timestamp
func TimeStamp(t time.Time) string {
return t.Format("Jan 2 15:04 2006 MST")
}