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