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69 lines
1.1 KiB
69 lines
1.1 KiB
package themis
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import (
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"context"
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"fmt"
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"time"
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)
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var loc *time.Location
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func init() {
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loc, _ = time.LoadLocation("America/Toronto")
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}
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type Notifier struct {
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c chan struct{}
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}
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func NewNotifier(c chan struct{}) *Notifier {
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return &Notifier{
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c: c,
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}
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}
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func (n *Notifier) Start(ctx context.Context) {
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m := NextMonday()
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sat := m.AddDate(0, 0, -2)
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if sat.Before(time.Now()) {
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sat = sat.AddDate(0, 0, 7)
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}
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t, err := time.ParseInLocation(time.DateTime, fmt.Sprintf("%s 17:00:00", sat.Format(time.DateOnly)), loc)
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if err != nil {
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panic("failed to parse next monday notif time. this is likely a bug.")
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}
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first := time.NewTimer(time.Until(t))
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<-first.C
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select {
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case <-ctx.Done():
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return
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default:
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n.c <- struct{}{}
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}
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ticker := time.NewTicker(time.Hour * 24 * 7)
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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n.c <- struct{}{}
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}
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time.Sleep(time.Hour)
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}
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}
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func (n *Notifier) NotifyFunc(ctx context.Context, f func()) {
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for {
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select {
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case <-ctx.Done():
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return
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case <-n.c:
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f()
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}
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time.Sleep(5 * time.Minute)
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}
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}
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