Feature Management: Update admin page UI after a successful update (#76380)

* Feature Management: Update admin page UI after a successful update

* lint

* lint

* refactor

pkg/api/api.go

@@ -412,6 +412,7 @@ func (hs *HTTPServer) registerRoutes() {
 
 		if hs.Features.IsEnabled(featuremgmt.FlagFeatureToggleAdminPage) {
 			apiRoute.Group("/featuremgmt", func(featuremgmtRoute routing.RouteRegister) {
+				featuremgmtRoute.Get("/state", authorize(ac.EvalPermission(ac.ActionFeatureManagementRead)), hs.GetFeatureMgmtState)
 				featuremgmtRoute.Get("/", authorize(ac.EvalPermission(ac.ActionFeatureManagementRead)), hs.GetFeatureToggles)
 				featuremgmtRoute.Post("/", authorize(ac.EvalPermission(ac.ActionFeatureManagementWrite)), hs.UpdateFeatureToggle)
 			})

pkg/api/featuremgmt.go

@@ -78,9 +78,16 @@ func (hs *HTTPServer) UpdateFeatureToggle(ctx *contextmodel.ReqContext) response
 		return response.Respond(http.StatusBadRequest, "Failed to perform webhook request")
 	}
 
+	hs.Features.SetRestartRequired()
+
 	return response.Respond(http.StatusOK, "feature toggles updated successfully")
 }
 
+func (hs *HTTPServer) GetFeatureMgmtState(ctx *contextmodel.ReqContext) response.Response {
+	fmState := hs.Features.GetState()
+	return response.Respond(http.StatusOK, fmState)
+}
+
 // isFeatureHidden returns whether a toggle should be hidden from the admin page.
 // filters out statuses Unknown, Experimental, and Private Preview
 func isFeatureHidden(flag featuremgmt.FeatureFlag, hideCfg map[string]struct{}) bool {

pkg/services/featuremgmt/manager.go

@@ -14,13 +14,14 @@ var (
 )
 
 type FeatureManager struct {
-	isDevMod  bool
-	licensing licensing.Licensing
-	flags     map[string]*FeatureFlag
-	enabled   map[string]bool // only the "on" values
-	config    string          // path to config file
-	vars      map[string]any
-	log       log.Logger
+	isDevMod        bool
+	restartRequired bool
+	licensing       licensing.Licensing
+	flags           map[string]*FeatureFlag
+	enabled         map[string]bool // only the "on" values
+	config          string          // path to config file
+	vars            map[string]any
+	log             log.Logger
 }
 
 // This will merge the flags with the current configuration
@@ -148,6 +149,14 @@ func (fm *FeatureManager) GetFlags() []FeatureFlag {
 	return v
 }
 
+func (fm *FeatureManager) GetState() *FeatureManagerState {
+	return &FeatureManagerState{RestartRequired: fm.restartRequired}
+}
+
+func (fm *FeatureManager) SetRestartRequired() {
+	fm.restartRequired = true
+}
+
 // Check to see if a feature toggle exists by name
 func (fm *FeatureManager) LookupFlag(name string) (FeatureFlag, bool) {
 	f, ok := fm.flags[name]

pkg/services/featuremgmt/models.go

@@ -127,3 +127,7 @@ type FeatureToggleDTO struct {
 	Enabled     bool   `json:"enabled"`
 	ReadOnly    bool   `json:"readOnly,omitempty"`
 }
+
+type FeatureManagerState struct {
+	RestartRequired bool `json:"restartRequired"`
+}