[MM-16232] ID loaded push notifications (#13137)

* Update BuildPushNotificationMessage (#12974)

* Update BuildPushNotificationMessage

* Included Category, Version, and Type

* Remove unnecessary function args

* [MM-16232] Build and return fetched notification (#13085)

* Build and return fetched notification

* Remove check on PushNotificationContents

* Ran i18n-extract

* Get UserId from session

* Re-add ReturnStatusOK

* Remove UserId from PushNotificationAck

* Always include channel name

* [MM-16232] Return after writing response and add default message (#13127)

* Return after writing response and add default message

* Include channel ID as well

* Localize default message

* Fix i18n

app/notification_push_test.go

@@ -898,7 +898,7 @@ func TestGetPushNotificationMessage(t *testing.T) {
 	}
 }
 
-func TestBuildPushNotificationMessage(t *testing.T) {
+func TestBuildPushNotificationMessageMentions(t *testing.T) {
 	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
@@ -947,3 +947,64 @@ func TestBuildPushNotificationMessage(t *testing.T) {
 		})
 	}
 }
+
+func TestBuildPushNotificationMessageContents(t *testing.T) {
+	th := Setup(t).InitBasic()
+	defer th.TearDown()
+
+	team := th.CreateTeam()
+	sender := th.CreateUser()
+	receiver := th.CreateUser()
+	th.LinkUserToTeam(sender, team)
+	th.LinkUserToTeam(receiver, team)
+	channel := th.CreateChannel(team)
+	th.AddUserToChannel(sender, channel)
+	th.AddUserToChannel(receiver, channel)
+
+	post := th.CreatePost(channel)
+
+	explicitMention := false
+	channelWideMention := false
+	replyToThreadType := ""
+
+	receiverLocale := utils.GetUserTranslations(receiver.Locale)
+
+	for name, tc := range map[string]struct {
+		contentsConfig string
+		expectedMsg    model.PushNotification
+	}{
+		"only post ID, channel ID, and message included in push notification": {
+			contentsConfig: model.ID_LOADED_NOTIFICATION,
+			expectedMsg: model.PushNotification{
+				PostId:    post.Id,
+				ChannelId: post.ChannelId,
+				Category:  model.CATEGORY_CAN_REPLY,
+				Version:   model.PUSH_MESSAGE_V2,
+				Type:      model.PUSH_TYPE_ID_LOADED,
+				Message:   receiverLocale("api.push_notification.id_loaded.default_message"),
+			},
+		},
+		"full contents included in push notification": {
+			contentsConfig: model.GENERIC_NOTIFICATION,
+			expectedMsg: model.PushNotification{
+				Category:    model.CATEGORY_CAN_REPLY,
+				Version:     model.PUSH_MESSAGE_V2,
+				Type:        model.PUSH_TYPE_MESSAGE,
+				PostId:      post.Id,
+				TeamId:      channel.TeamId,
+				ChannelId:   channel.Id,
+				ChannelName: channel.Name,
+				RootId:      post.RootId,
+				SenderId:    post.UserId,
+				SenderName:  sender.Username,
+				Message:     fmt.Sprintf("%s posted a message.", sender.Username),
+			},
+		},
+	} {
+		t.Run(name, func(t *testing.T) {
+			th.App.UpdateConfig(func(cfg *model.Config) { *cfg.EmailSettings.PushNotificationContents = tc.contentsConfig })
+			msg := th.App.BuildPushNotificationMessage(post, receiver, channel, channel.Name, sender.Username, explicitMention, channelWideMention, replyToThreadType)
+			assert.Equal(t, tc.expectedMsg, msg)
+		})
+	}
+}