Add list shared with user event

pkg/models/events.go

@@ -105,3 +105,17 @@ type ListUpdatedEvent struct {
 func (l *ListUpdatedEvent) TopicName() string {
 	return "list.updated"
 }
+
+////////////////////
+// Sharing Events //
+////////////////////
+
+type ListSharedWithUserEvent struct {
+	List *List
+	User *user.User
+	Doer *user.User
+}
+
+func (l *ListSharedWithUserEvent) TopicName() string {
+	return "list.shared.user"
+}

pkg/models/list_users.go

@@ -17,6 +17,7 @@
 package models
 
 import (
+	"code.vikunja.io/api/pkg/events"
 	"time"
 
 	"code.vikunja.io/api/pkg/user"
@@ -112,6 +113,19 @@ func (lu *ListUser) Create(s *xorm.Session, a web.Auth) (err error) {
 		return err
 	}
 
+	doer, err := user.GetFromAuth(a)
+	if err != nil {
+		return err
+	}
+	err = events.Publish(&ListSharedWithUserEvent{
+		List: l,
+		User: u,
+		Doer: doer,
+	})
+	if err != nil {
+		return err
+	}
+
 	err = updateListLastUpdated(s, l)
 	return
 }