From 5a979782d8fab98c709eb650a5dda32d970f01a1 Mon Sep 17 00:00:00 2001
From: Eguzki Astiz Lezaun <eastizle@redhat.com>
Date: Tue, 10 Oct 2023 10:38:35 +0200
Subject: [PATCH] wip

---
 pkg/common/gatewayapi_utils.go  | 27 +++++++++++++++++++++++++++
 pkg/common/kuadrant_topology.go | 15 +++++++++++----
 2 files changed, 38 insertions(+), 4 deletions(-)

diff --git a/pkg/common/gatewayapi_utils.go b/pkg/common/gatewayapi_utils.go
index eed66d91e..d693dcf7b 100644
--- a/pkg/common/gatewayapi_utils.go
+++ b/pkg/common/gatewayapi_utils.go
@@ -657,3 +657,30 @@ func AddHTTPRouteByGatewayIndexer(mgr ctrl.Manager, logger logr.Logger) error {
 
 	return nil
 }
+
+func GetRouteAcceptedGatewayParentKeys(route *gatewayapiv1beta1.HTTPRoute) []client.ObjectKey {
+	if route == nil {
+		return nil
+	}
+
+	acceptedRouteParentStatus := Filter(route.Status.RouteStatus.Parents, func(p gatewayapiv1beta1.RouteParentStatus) bool {
+		// Only gateway parents
+		if IsParentGateway(p.ParentRef) {
+			return false
+		}
+
+		// Only gateways that accepted this route
+		if meta.IsStatusConditionFalse(p.Conditions, "Accepted") {
+			return false
+		}
+
+		return true
+	})
+
+	return Map(acceptedRouteParentStatus, func(p gatewayapiv1beta1.RouteParentStatus) client.ObjectKey {
+		return client.ObjectKey{
+			Name:      string(p.ParentRef.Name),
+			Namespace: string(ptr.Deref(p.ParentRef.Namespace, gatewayapiv1beta1.Namespace(route.Namespace))),
+		}
+	})
+}
diff --git a/pkg/common/kuadrant_topology.go b/pkg/common/kuadrant_topology.go
index 676de1c82..563220b58 100644
--- a/pkg/common/kuadrant_topology.go
+++ b/pkg/common/kuadrant_topology.go
@@ -158,13 +158,20 @@ func (g *gatewayAPITopology) RouteFromPolicy(policy KuadrantPolicy) *gatewayapiv
 }
 
 func (g *gatewayAPITopology) GetRouteParents(route *gatewayapiv1beta1.HTTPRoute) []*gatewayapiv1beta1.Gateway {
-	// TODO
-	return nil
+	parentKeys := GetRouteAcceptedGatewayParentKeys(route)
+	gatewaysWithNils := Map(parentKeys, func(key client.ObjectKey) *gatewayapiv1beta1.Gateway {
+		return g.gatewaysIndex[key]
+	})
+
+	return Filter(gatewaysWithNils, func(g *gatewayapiv1beta1.Gateway) bool { return g != nil })
 }
 
 func (g *gatewayAPITopology) GetGateways() []*gatewayapiv1beta1.Gateway {
-	// TODO
-	return nil
+	gateways := make([]*gatewayapiv1beta1.Gateway, 0, len(g.gatewaysIndex))
+	for _, val := range g.gatewaysIndex {
+		gateways = append(gateways, val)
+	}
+	return gateways
 }
 
 func (g *gatewayAPITopology) GetGatewayRoutes(gateway *gatewayapiv1beta1.Gateway) []*gatewayapiv1beta1.HTTPRoute {