[ICU-621] Add ExperimentalGroupUnreadChannels setting (#8127)

* Add ExperimentalGroupUnreadChannels setting

* track ExperimentalGroupUnreadChannels in diagnostics

app/diagnostics.go

@@ -240,6 +240,7 @@ func (a *App) trackConfig() {
 		"enable_preview_features":                                 *cfg.ServiceSettings.EnablePreviewFeatures,
 		"enable_tutorial":                                         *cfg.ServiceSettings.EnableTutorial,
 		"experimental_enable_default_channel_leave_join_messages": *cfg.ServiceSettings.ExperimentalEnableDefaultChannelLeaveJoinMessages,
+		"experimental_group_unread_channels":                      *cfg.ServiceSettings.ExperimentalGroupUnreadChannels,
 	})
 
 	a.SendDiagnostic(TRACK_CONFIG_TEAM, map[string]interface{}{

config/default.json

@@ -57,6 +57,7 @@
         "CloseUnusedDirectMessages": false,
         "EnableTutorial": true,
         "ExperimentalEnableDefaultChannelLeaveJoinMessages": true,
+        "ExperimentalGroupUnreadChannels": false,
         "ImageProxyType": "",
         "ImageProxyURL": ""
     },

model/config.go

@@ -214,6 +214,7 @@ type ServiceSettings struct {
 	EnablePreviewFeatures                             *bool
 	EnableTutorial                                    *bool
 	ExperimentalEnableDefaultChannelLeaveJoinMessages *bool
+	ExperimentalGroupUnreadChannels                   *bool
 	ImageProxyType                                    *string
 	ImageProxyURL                                     *string
 	ImageProxyOptions                                 *string
@@ -422,6 +423,10 @@ func (s *ServiceSettings) SetDefaults() {
 		s.ExperimentalEnableDefaultChannelLeaveJoinMessages = NewBool(true)
 	}
 
+	if s.ExperimentalGroupUnreadChannels == nil {
+		s.ExperimentalGroupUnreadChannels = NewBool(false)
+	}
+
 	if s.ImageProxyType == nil {
 		s.ImageProxyType = NewString("")
 	}

utils/config.go

@@ -397,6 +397,7 @@ func GenerateClientConfig(c *model.Config, diagnosticId string) map[string]strin
 	props["EnablePreviewFeatures"] = strconv.FormatBool(*c.ServiceSettings.EnablePreviewFeatures)
 	props["EnableTutorial"] = strconv.FormatBool(*c.ServiceSettings.EnableTutorial)
 	props["ExperimentalEnableDefaultChannelLeaveJoinMessages"] = strconv.FormatBool(*c.ServiceSettings.ExperimentalEnableDefaultChannelLeaveJoinMessages)
+	props["ExperimentalGroupUnreadChannels"] = strconv.FormatBool(*c.ServiceSettings.ExperimentalGroupUnreadChannels)
 
 	props["SendEmailNotifications"] = strconv.FormatBool(c.EmailSettings.SendEmailNotifications)
 	props["SendPushNotifications"] = strconv.FormatBool(*c.EmailSettings.SendPushNotifications)