105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package datetime
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import (
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"fmt"
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"log/slog"
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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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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/theme"
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)
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// CountdownFormat chooses how the time left reads.
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type CountdownFormat int
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const (
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// CountdownClock reads 01:02:03, with days as "2d" first.
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CountdownClock CountdownFormat = iota
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// CountdownWords reads "1 h 2 min 3 s".
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CountdownWords
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)
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// CountdownOptions configure a Countdown.
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type CountdownOptions struct {
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Format CountdownFormat
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// Now fixes the clock and stops updates.
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Now time.Time
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Label string
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}
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// CountdownResult is the countdown and its finish.
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type CountdownResult struct {
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Element *ui.Element
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finished bool
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}
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// Finished reports reaching zero, once per deadline.
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func (r CountdownResult) Finished() bool { return r.finished }
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// Countdown shows the time left, ticking each second while shown.
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func Countdown(c *ui.Context, deadline time.Time, opts CountdownOptions) CountdownResult {
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if opts.Format < CountdownClock || opts.Format > CountdownWords {
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panic(fmt.Sprintf("mujica: Countdown Format %d out of range", opts.Format))
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}
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k := core.Tokens(c)
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now := opts.Now
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live := now.IsZero()
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if live {
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now = c.Now()
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}
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left := max(deadline.Sub(now), 0)
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shown := left.Truncate(time.Second)
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if left%time.Second != 0 {
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shown += time.Second
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}
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label := opts.Label
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if label == "" {
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label = core.Msg(c, "countdown.label")
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}
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text := CountdownText(c, shown, opts.Format)
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e := ui.Text(c, text).Font(theme.MonoFont).FontSize(core.FontSize(c, theme.H2Size)).TextColor(k.Text).FontFeatures("tnum").
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Label(label + ", " + CountdownText(c, shown, CountdownWords))
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r := CountdownResult{Element: e}
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fired := ui.Local(e, "countdown-fired", func() time.Time { return time.Time{} })
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switch {
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case left == 0 && !fired.Equal(deadline):
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*fired, r.finished = deadline, true
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slog.Debug("mujica: countdown finished", "deadline", deadline)
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c.Announce(fmt.Sprintf(core.Msg(c, "countdown.done"), label))
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case left > 0 && live:
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c.After(left % time.Second)
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if left%time.Second == 0 {
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c.After(time.Second)
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}
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}
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if left == 0 {
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e.TextColor(k.AccentText)
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}
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return r
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}
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// CountdownText formats a non-negative duration in whole seconds.
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func CountdownText(c *ui.Context, d time.Duration, f CountdownFormat) string {
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s := int(d / time.Second)
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days, h, m, sec := s/86400, s%86400/3600, s%3600/60, s%60
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if f == CountdownClock {
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t := fmt.Sprintf("%02d:%02d:%02d", h, m, sec)
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if days > 0 {
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t = fmt.Sprintf(core.Msg(c, "countdown.days_clock"), days) + " " + t
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}
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return t
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}
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out := ""
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for i, v := range []int{days, h, m, sec} {
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if v > 0 || i == 3 && out == "" {
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if out != "" {
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out += " "
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}
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out += fmt.Sprintf(core.Msg(c, []string{"countdown.d", "countdown.h", "countdown.m", "countdown.s"}[i]), v)
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}
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}
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return out
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}
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