Implement policy affected status

Author: ciarams87

internal/controller/state/conditions/conditions.go

@@ -127,8 +127,12 @@ const (
 	// ObservabilityPolicy is applied to a HTTPRoute, or GRPCRoute.
 	ObservabilityPolicyAffected v1.PolicyConditionType = "ObservabilityPolicyAffected"
 
+	// ProxySettingsPolicyAffected is used with the "PolicyAffected" condition when a
+	// ProxySettingsPolicy is applied to a Gateway, HTTPRoute, or GRPCRoute.
+	ProxySettingsPolicyAffected v1.PolicyConditionType = "ProxySettingsPolicyAffected"
+
 	// PolicyAffectedReason is used with the "PolicyAffected" condition when a
-	// ObservabilityPolicy or ClientSettingsPolicy is applied to Gateways or Routes.
+	// ObservabilityPolicy, ClientSettingsPolicy, or ProxySettingsPolicy is applied to Gateways or Routes.
 	PolicyAffectedReason v1.PolicyConditionReason = "PolicyAffected"
 
 	// GatewayResolvedRefs condition indicates whether the controller was able to resolve the
@@ -1145,6 +1149,17 @@ func NewClientSettingsPolicyAffected() Condition {
 	}
 }
 
+// NewProxySettingsPolicyAffected returns a Condition that indicates that a ProxySettingsPolicy
+// is applied to the resource.
+func NewProxySettingsPolicyAffected() Condition {
+	return Condition{
+		Type:    string(ProxySettingsPolicyAffected),
+		Status:  metav1.ConditionTrue,
+		Reason:  string(PolicyAffectedReason),
+		Message: "The ProxySettingsPolicy is applied to the resource",
+	}
+}
+
 // NewBackendTLSPolicyResolvedRefs returns a Condition that indicates that all CACertificateRefs
 // in the BackendTLSPolicy are resolved.
 func NewBackendTLSPolicyResolvedRefs() Condition {

internal/controller/state/graph/policies.go

@@ -637,5 +637,10 @@ func addStatusToTargetRefs(policyKind string, conditionsList *[]conditions.Condi
 			return
 		}
 		*conditionsList = append(*conditionsList, conditions.NewClientSettingsPolicyAffected())
+	case kinds.ProxySettingsPolicy:
+		if conditions.HasMatchingCondition(*conditionsList, conditions.NewProxySettingsPolicyAffected()) {
+			return
+		}
+		*conditionsList = append(*conditionsList, conditions.NewProxySettingsPolicyAffected())
 	}
 }