async triggers for either interval or next due, accept cron

server/ajax/task/task.go

@@ -24,6 +24,7 @@ type Task struct {
 	Note      []string
 	Due       time.Time
 	Loop      time.Duration
+	Cron      form.Cron
 
 	Index int
 }
@@ -45,6 +46,7 @@ func New(r *http.Request) (*Task, error) {
 		Edited:   time.Now(),
 		Due:      form.ToTime(form.Get(r, "duedate")),
 		Loop:     form.ToDuration(form.Get(r, "loop")),
+		Cron:     form.Cron(form.Get(r, "cron")),
 	}
 	task.SetNote(form.Get(r, "note"))
 	return task, task.validate()
@@ -75,7 +77,8 @@ func (t *Task) MarshalJSON() ([]byte, error) {
 	//    "dueStr":"",
 	//    "dueInt":33330000,
 	//    "dueTitle":"Due ",
-	//    "loop": "1m"}
+	//    "loop": "1m",
+	//    "cron": "* * * * *"}
 	// ]}
 	fullFormat := "02 Jan 2006 03:04 PM"
 	shortFormat := "02 Jan"
@@ -112,6 +115,7 @@ func (t *Task) MarshalJSON() ([]byte, error) {
 		"dueInt":                   t.Due.Unix(),
 		"dueTitle":                 "Due ",
 		"loop":                     t.Loop.String(),
+		"cron":                     t.Cron,
 	}
 	if t.Due.IsZero() {
 		for k := range m {