Files
MindSift/internal/domain/due.go
T
sandrodachandClaude Opus 5.5 344f5e4ab2 feat(tasks): due dates with optional time; alarms at the right moment
Due dates can carry a time (YYYY-MM-DDTHH:MM). Alarms fire at that time,
or 09:00 for all-day tasks, minus the user's lead time, in TZ (default
Europe/Berlin, tzdata embedded). A new due date or reopening a task
re-arms the alarm. Recurrence keeps the time; Markdown export/import
carry it. The UI shows relative labels ("Heute, 14:30"), marks overdue
tasks to the minute and groups by local day instead of the UTC date.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-29 07:48:37 +01:00

78 lines
2.3 KiB
Go

package domain
import (
"strings"
"time"
)
// Due dates are stored as "2006-01-02" (all day) or "2006-01-02T15:04" (with time), always in the
// server's local time zone (TZ, default Europe/Berlin). Both sort correctly as plain strings.
const (
dueDateLayout = "2006-01-02"
dueDateTimeLayout = "2006-01-02T15:04"
)
// AllDayAlarmHour is when alarms for tasks without a time fire.
const AllDayAlarmHour = 9
// NormalizeDue brings accepted spellings ("2006-01-02 15:04", seconds, RFC3339) to the stored form.
// Values it cannot read are kept as they are so no input gets lost.
func NormalizeDue(raw string) string {
raw = strings.TrimSpace(raw)
if raw == "" {
return ""
}
if t, hasTime, ok := ParseDue(raw, time.Local); ok {
if hasTime {
return t.Format(dueDateTimeLayout)
}
return t.Format(dueDateLayout)
}
return raw
}
// ParseDue reads a due date in loc. hasTime is false for all-day dates (then t is midnight).
func ParseDue(raw string, loc *time.Location) (t time.Time, hasTime, ok bool) {
raw = strings.TrimSpace(raw)
if t, err := time.ParseInLocation(dueDateLayout, raw, loc); err == nil {
return t, false, true
}
for _, layout := range []string{dueDateTimeLayout, "2006-01-02 15:04", "2006-01-02T15:04:05", "2006-01-02 15:04:05"} {
if t, err := time.ParseInLocation(layout, raw, loc); err == nil {
return t, true, true
}
}
if t, err := time.Parse(time.RFC3339, raw); err == nil {
return t.In(loc), true, true
}
return time.Time{}, false, false
}
// DueAlarmAt is the moment the alarm for a due date fires: the due time (09:00 for all-day tasks)
// minus the user's lead time.
func DueAlarmAt(raw string, notifyBeforeMinutes int, loc *time.Location) (time.Time, bool) {
t, hasTime, ok := ParseDue(raw, loc)
if !ok {
return time.Time{}, false
}
if !hasTime {
t = time.Date(t.Year(), t.Month(), t.Day(), AllDayAlarmHour, 0, 0, 0, loc)
}
if notifyBeforeMinutes > 0 {
t = t.Add(-time.Duration(notifyBeforeMinutes) * time.Minute)
}
return t, true
}
// HumanDue renders a due date for messages: "30.10.2026" or "30.10.2026, 14:30 Uhr".
func HumanDue(raw string) string {
t, hasTime, ok := ParseDue(raw, time.Local)
if !ok {
return raw
}
if hasTime {
return t.Format("02.01.2006, 15:04") + " Uhr"
}
return t.Format("02.01.2006")
}