40 lines
868 B
Go
40 lines
868 B
Go
package morningalarm
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import (
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"time"
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"github.com/robfig/cron/v3"
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)
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// nextAlarm returns the time of the next alarm to fire from the perspective of cron
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func (ma *MorningAlarm) nextAlarm() *time.Time {
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if len(ma.cr.Entries()) == 0 {
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return nil
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}
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min := ma.cr.Entries()[0].Next
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for _, entry := range ma.cr.Entries() {
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if entry.Next.Before(min) {
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min = entry.Next
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}
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}
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return &min
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}
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// armAlarm arms an alarm to fire at the specified time
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func (ma *MorningAlarm) armAlarm(alarm *alarm) (cron.EntryID, error) {
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return ma.cr.AddFunc(alarm.Time, ma.fireAlarm)
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}
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// disarmAlarm disarms an alarm and prevents it from firing at the specified time
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func (ma *MorningAlarm) disarmAlarm(alarm *alarm) {
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ma.cr.Remove(alarm.cronID)
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}
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// fireAlarm function that is called when an alarm is fired
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func (ma *MorningAlarm) fireAlarm() {
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ma.playWakeUpMusic()
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}
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