Files
MujicaUI/datetime/relative_time.go
T

78 lines
2.0 KiB
Go

package datetime
import (
"fmt"
"time"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
)
// RelativeTimeOptions configure a RelativeTime.
type RelativeTimeOptions struct {
// Location is the tooltip's zone; required.
Location *time.Location
// Now fixes the clock and stops updates.
Now time.Time
Hour12 bool
}
// RelativeTime shows t as "3 minutes ago", refreshing while shown.
func RelativeTime(c *ui.Context, t time.Time, opts RelativeTimeOptions) *ui.Element {
loc := eventLocation("RelativeTime", opts.Location)
now := opts.Now
if now.IsZero() {
now = c.Now()
c.After(relativeTimeNext(now.Sub(t)))
}
text := RelativeTimeText(c, now.Sub(t))
w := t.In(loc)
exact := core.DateOf(w).String() + " " + timeText(c, TimeOfDay{w.Hour(), w.Minute(), 0}, timeConfig{hour12: opts.Hour12}) + " " + w.Format("MST")
return ui.Text(c, text).Label(text + ", " + exact).Tooltip(exact).FontFeatures("tnum")
}
// RelativeTimeText words d ago (positive) or ahead (negative).
func RelativeTimeText(c *ui.Context, d time.Duration) string {
past := d >= 0
if !past {
d = -d
}
var key string
var n int
switch {
case d < 45*time.Second:
return core.Msg(c, "relative_time.now")
case d < 45*time.Minute:
key, n = "minutes", max(1, int(d/time.Minute))
case d < 22*time.Hour:
key, n = "hours", max(1, int(d/time.Hour))
case d < 26*24*time.Hour:
key, n = "days", max(1, int(d/(24*time.Hour)))
case d < 320*24*time.Hour:
key, n = "months", max(1, int(d/(30*24*time.Hour)))
default:
key, n = "years", max(1, int(d/(365*24*time.Hour)))
}
unit := core.CalendarCount(c, "relative_time."+key, n)
if past {
return fmt.Sprintf(core.Msg(c, "relative_time.ago"), unit)
}
return fmt.Sprintf(core.Msg(c, "relative_time.in"), unit)
}
// relativeTimeNext is how long until the wording may change.
func relativeTimeNext(d time.Duration) time.Duration {
if d < 0 {
d = -d
}
step := time.Hour
switch {
case d < 2*time.Minute:
step = time.Second
case d < 2*time.Hour:
step = time.Minute
}
return step - d%step
}