chore: add extra field for attendee status (#6)

Author: himsngh

generator.go

@@ -20,6 +20,13 @@ func Generate(prodId string, events ...*Event) (string, error) {
 		return "", err
 	}
 	for _, event := range events {
+
+		for idx := range event.Attendees {
+			if event.Attendees[idx].Rsvp == "" {
+				event.Attendees[idx].Rsvp = Rsvp_False
+			}
+		}
+
 		e := &vEvent{
 			Event:       event,
 			DtStamp:     FormatDateTime(time.Now()),
@@ -60,6 +67,12 @@ func (event *Event) Generate(prodId string) (string, error) {
 		Events: []string{},
 	}
 
+	for idx := range event.Attendees {
+		if event.Attendees[idx].Rsvp == "" {
+			event.Attendees[idx].Rsvp = Rsvp_False
+		}
+	}
+
 	e := &vEvent{
 		Event:       event,
 		DtStamp:     FormatDateTime(time.Now()),

objects.go

@@ -59,6 +59,7 @@ type Attendee struct {
 	PartStatus   AttendeeStatus
 	//RSVP is by default NO
 	CuType CalendarUserType
+	Rsvp   RSVP
 }
 
 type Role string
@@ -70,13 +71,24 @@ const (
 type AttendeeStatus string
 
 const (
-	AttendeeStatus_TENTATIVE AttendeeStatus = "TENTATIVE"
-	AttendeeStatus_ACCEPTED  AttendeeStatus = "ACCEPTED"
-	AttendeeStatus_DECLINED  AttendeeStatus = "DECLINED"
+	AttendeeStatus_NeedAction AttendeeStatus = "NEEDS-ACTION"
+	AttendeeStatus_TENTATIVE  AttendeeStatus = "TENTATIVE"
+	AttendeeStatus_ACCEPTED   AttendeeStatus = "ACCEPTED"
+	AttendeeStatus_DECLINED   AttendeeStatus = "DECLINED"
 )
 
 type CalendarUserType string
 
 const (
 	INDIVIDUAL CalendarUserType = "INDIVIDUAL"
 )
+
+// This is related to PartStat
+// https://datatracker.ietf.org/doc/html/rfc5545#section-3.2.12
+// https://datatracker.ietf.org/doc/html/rfc5545#section-3.2.17
+type RSVP string
+
+const (
+	Rsvp_False RSVP = "FALSE"
+	Rsvp_True  RSVP = "TRUE"
+)