code added to toggle server LED label text

Change-Id: I714810ed1924f91a6e8c426e66b47eaf93311dd1
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/server-health/controllers/unit-id-controller.js b/app/server-health/controllers/unit-id-controller.js
index fa47781..5494c61 100644
--- a/app/server-health/controllers/unit-id-controller.js
+++ b/app/server-health/controllers/unit-id-controller.js
@@ -19,6 +19,26 @@
             'dataService',
             function($scope, $window, APIUtils, dataService, userModel){
                 $scope.dataService = dataService;
+
+                $scope.getLEDState = function(){
+                    APIUtils.getLEDState(function(state){
+                        if(state == APIUtils.LED_STATE.on){
+                            dataService.LED_state = APIUtils.LED_STATE_TEXT.on;
+                        }else{
+                            dataService.LED_state = APIUtils.LED_STATE_TEXT.off;
+                        }
+                    });
+                }
+                $scope.toggleLED = function(){
+                    var toggleState = (dataService.LED_state == APIUtils.LED_STATE_TEXT.on) ?
+                        APIUtils.LED_STATE.off : APIUtils.LED_STATE.on;
+                        dataService.LED_state = (dataService.LED_state == APIUtils.LED_STATE_TEXT.on) ?
+                        APIUtils.LED_STATE_TEXT.off : APIUtils.LED_STATE_TEXT.on;
+                    APIUtils.setLEDState(toggleState, function(status){
+                    });
+                }
+
+                $scope.getLEDState();
             }
         ]
     );