MM-14289 & MM-14884 Push notification acknowledge id and include sender name (#10736)

* MM-14289 Add Push notification acknowledge identifier and store tracing logs

* MM-14884 include SenderName property in Push Notifications

* Remove @ sign from channel Name in push notifications

* Fix i18n

* Fix push notification model

* fix TestPostNotificationGetChannelName

* Remove colon from model constant

* Fix Notification Registry tests

* Make postId optional for clear notifications

* Update http status when service is not available

Co-Authored-By: enahum <nahumhbl@gmail.com>

api4/system.go

@@ -36,6 +36,8 @@ func (api *API) InitSystem() {
 	api.BaseRoutes.ApiRoot.Handle("/analytics/old", api.ApiSessionRequired(getAnalytics)).Methods("GET")
 
 	api.BaseRoutes.ApiRoot.Handle("/redirect_location", api.ApiSessionRequiredTrustRequester(getRedirectLocation)).Methods("GET")
+
+	api.BaseRoutes.ApiRoot.Handle("/notifications/ack", api.ApiSessionRequired(pushNotificationAck)).Methods("POST")
 }
 
 func getSystemPing(c *Context, w http.ResponseWriter, r *http.Request) {
@@ -317,3 +319,28 @@ func getRedirectLocation(c *Context, w http.ResponseWriter, r *http.Request) {
 	w.Write([]byte(model.MapToJson(m)))
 	return
 }
+
+func pushNotificationAck(c *Context, w http.ResponseWriter, r *http.Request) {
+	ack := model.PushNotificationAckFromJson(r.Body)
+
+	if !*c.App.Config().EmailSettings.SendPushNotifications {
+		c.Err = model.NewAppError("pushNotificationAck", "api.push_notification.disabled.app_error", nil, "", http.StatusNotImplemented)
+		return
+	}
+
+	err := c.App.SendAckToPushProxy(ack)
+	if err != nil {
+		c.Err = model.NewAppError("pushNotificationAck", "api.push_notifications_ack.forward.app_error", nil, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	mlog.Debug("Push notification ack received",
+		mlog.String("ackId", ack.Id),
+		mlog.String("platform", ack.ClientPlatform),
+		mlog.String("type", ack.NotificationType),
+		mlog.Int64("at", ack.ClientReceivedAt),
+	)
+
+	ReturnStatusOK(w)
+	return
+}