func getSubscriptionDifferences()

in frontend/pkg/frontend/frontend.go [1189:1223]

• 30 lines of code
• 14 McCabe index (conditional complexity)

func getSubscriptionDifferences(oldSub, newSub *arm.Subscription) []string {
	var messages []string

	if oldSub.State != newSub.State {
		messages = append(messages, fmt.Sprintf("Subscription state changed from %s to %s", oldSub.State, newSub.State))
	}

	if oldSub.Properties != nil && newSub.Properties != nil {
		if oldSub.Properties.TenantId != nil && newSub.Properties.TenantId != nil &&
			*oldSub.Properties.TenantId != *newSub.Properties.TenantId {
			messages = append(messages, fmt.Sprintf("Subscription tenantId changed from %s to %s", *oldSub.Properties.TenantId, *newSub.Properties.TenantId))
		}

		if oldSub.Properties.RegisteredFeatures != nil && newSub.Properties.RegisteredFeatures != nil {
			oldFeatures := featuresMap(oldSub.Properties.RegisteredFeatures)
			newFeatures := featuresMap(newSub.Properties.RegisteredFeatures)

			for featureName, oldState := range oldFeatures {
				newState, exists := newFeatures[featureName]
				if !exists {
					messages = append(messages, fmt.Sprintf("Feature %s removed", featureName))
				} else if oldState != newState {
					messages = append(messages, fmt.Sprintf("Feature %s state changed from %s to %s", featureName, oldState, newState))
				}
			}
			for featureName, newState := range newFeatures {
				if _, exists := oldFeatures[featureName]; !exists {
					messages = append(messages, fmt.Sprintf("Feature %s added with state %s", featureName, newState))
				}
			}
		}
	}

	return messages
}