[GEN-1540] Add update action mutation (#1607)

This pull request includes several changes to improve the handling of
action types in the `CreateAction` and `UpdateAction` resolvers, as well
as the addition of a new update function for `AddClusterInfo` actions.
The most important changes involve refactoring action type strings into
constants and implementing the `UpdateAddClusterInfo` function.

### Refactoring action types:

*
[`frontend/graph/schema.resolvers.go`](diffhunk://#diff-8e6e95029056db2c0301fc338e0ca5a04356ce5d45ee9514bbd167f2d85bae70L560-R560):
Replaced hardcoded action type strings with constants from
`actionservices` for better maintainability.
[[1]](diffhunk://#diff-8e6e95029056db2c0301fc338e0ca5a04356ce5d45ee9514bbd167f2d85bae70L560-R560)
[[2]](diffhunk://#diff-8e6e95029056db2c0301fc338e0ca5a04356ce5d45ee9514bbd167f2d85bae70L569-R569)

### New update functionality:

*
[`frontend/graph/schema.resolvers.go`](diffhunk://#diff-8e6e95029056db2c0301fc338e0ca5a04356ce5d45ee9514bbd167f2d85bae70L582-R599):
Implemented the `UpdateAction` resolver to handle updating
`AddClusterInfo` actions.
*
[`frontend/services/actions/addclusterinfo.go`](diffhunk://#diff-c2da2861415e61f772e3b44d22810aa34b4eba6070f744709c4b1b6b919a3f09L70-R137):
Added the `UpdateAddClusterInfo` function to update existing
`AddClusterInfo` actions in Kubernetes.

### Constants definition:

*
[`frontend/services/actions/constants.go`](diffhunk://#diff-377602090c56364ea3a4d6cdadda1ad9b1c6ba9e122f882e5a1f640b1e62acf8R1-R7):
Added constants for action types `ActionTypeAddClusterInfo` and
`ActionTypeDeleteAttribute`.

frontend/services/actions/addclusterinfo.go

@@ -67,7 +67,74 @@ func CreateAddClusterInfo(ctx context.Context, action model.ActionInput) (model.
 
 	response := &model.AddClusterInfoAction{
 		ID:      generatedAction.Name,
-		Type:    "AddClusterInfo",
+		Type:    ActionTypeAddClusterInfo,
+		Name:    action.Name,
+		Notes:   action.Notes,
+		Disable: action.Disable,
+		Signals: action.Signals,
+		Details: resDetails,
+	}
+
+	return response, nil
+}
+
+func UpdateAddClusterInfo(ctx context.Context, id string, action model.ActionInput) (model.Action, error) {
+	odigosns := consts.DefaultOdigosNamespace
+
+	// Fetch the existing action
+	existingAction, err := kube.DefaultClient.ActionsClient.AddClusterInfos(odigosns).Get(ctx, id, metav1.GetOptions{})
+	if err != nil {
+		return nil, fmt.Errorf("failed to fetch AddClusterInfo: %v", err)
+	}
+
+	// Parse the details from action.Details
+	var details AddClusterInfoDetails
+	err = json.Unmarshal([]byte(action.Details), &details)
+	if err != nil {
+		return nil, fmt.Errorf("invalid details for AddClusterInfo: %v", err)
+	}
+
+	// Convert signals from action input
+	signals, err := services.ConvertSignals(action.Signals)
+	if err != nil {
+		return nil, fmt.Errorf("failed to convert signals: %v", err)
+	}
+
+	// Convert ClusterAttributes from model to v1alpha1
+	clusterAttributes := make([]v1alpha1.OtelAttributeWithValue, len(details.ClusterAttributes))
+	for i, attr := range details.ClusterAttributes {
+		clusterAttributes[i] = v1alpha1.OtelAttributeWithValue{
+			AttributeName:        attr.AttributeName,
+			AttributeStringValue: attr.AttributeStringValue,
+		}
+	}
+
+	// Update the existing action with new values
+	existingAction.Spec.ActionName = services.DerefString(action.Name)
+	existingAction.Spec.Notes = services.DerefString(action.Notes)
+	existingAction.Spec.Disabled = action.Disable
+	existingAction.Spec.Signals = signals
+	existingAction.Spec.ClusterAttributes = clusterAttributes
+
+	// Update the action in Kubernetes
+	updatedAction, err := kube.DefaultClient.ActionsClient.AddClusterInfos(odigosns).Update(ctx, existingAction, metav1.UpdateOptions{})
+	if err != nil {
+		return nil, fmt.Errorf("failed to update AddClusterInfo: %v", err)
+	}
+
+	// Prepare the response model
+	resDetails := make([]*model.ClusterInfo, len(details.ClusterAttributes))
+	for i, attr := range details.ClusterAttributes {
+		resDetails[i] = &model.ClusterInfo{
+			AttributeName:        attr.AttributeName,
+			AttributeStringValue: attr.AttributeStringValue,
+		}
+	}
+
+	// Return the updated model as the response
+	response := &model.AddClusterInfoAction{
+		ID:      updatedAction.Name,
+		Type:    ActionTypeAddClusterInfo,
 		Name:    action.Name,
 		Notes:   action.Notes,
 		Disable: action.Disable,

frontend/services/actions/constants.go

@@ -0,0 +1,7 @@
+package services
+
+const (
+	ActionTypeAddClusterInfo  = "AddClusterInfo"
+	ActionTypeDeleteAttribute = "DeleteAttribute"
+	// Add more action types as needed
+)