From 17667a1c754a65bc69ad61a42bbaa5aa6ade8a8a Mon Sep 17 00:00:00 2001
From: "R.B. Boyer" <4903+rboyer@users.noreply.github.com>
Date: Tue, 22 Aug 2023 12:31:06 -0500
Subject: [PATCH] mesh: adding type aliases for mesh resource usage (#18448)

Introduces some simple type aliases for DecodedResource[*X] wrappers for each type which cut down on the verbosity
---
 internal/mesh/internal/types/decoded.go | 20 ++++++++++++++++++++
 internal/resource/decode.go             | 17 +++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 internal/mesh/internal/types/decoded.go

diff --git a/internal/mesh/internal/types/decoded.go b/internal/mesh/internal/types/decoded.go
new file mode 100644
index 0000000000..90ce212333
--- /dev/null
+++ b/internal/mesh/internal/types/decoded.go
@@ -0,0 +1,20 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: BUSL-1.1
+
+package types
+
+import (
+	"github.com/hashicorp/consul/internal/resource"
+	pbcatalog "github.com/hashicorp/consul/proto-public/pbcatalog/v1alpha1"
+	pbmesh "github.com/hashicorp/consul/proto-public/pbmesh/v1alpha1"
+)
+
+type (
+	DecodedHTTPRoute         = resource.DecodedResource[*pbmesh.HTTPRoute]
+	DecodedGRPCRoute         = resource.DecodedResource[*pbmesh.GRPCRoute]
+	DecodedTCPRoute          = resource.DecodedResource[*pbmesh.TCPRoute]
+	DecodedDestinationPolicy = resource.DecodedResource[*pbmesh.DestinationPolicy]
+	DecodedComputedRoutes    = resource.DecodedResource[*pbmesh.ComputedRoutes]
+	DecodedFailoverPolicy    = resource.DecodedResource[*pbcatalog.FailoverPolicy]
+	DecodedService           = resource.DecodedResource[*pbcatalog.Service]
+)
diff --git a/internal/resource/decode.go b/internal/resource/decode.go
index c610898ca3..35ee088603 100644
--- a/internal/resource/decode.go
+++ b/internal/resource/decode.go
@@ -20,6 +20,23 @@ type DecodedResource[T proto.Message] struct {
 	Data     T
 }
 
+func (d *DecodedResource[T]) GetResource() *pbresource.Resource {
+	if d == nil {
+		return nil
+	}
+
+	return d.Resource
+}
+
+func (d *DecodedResource[T]) GetData() T {
+	if d == nil {
+		var zero T
+		return zero
+	}
+
+	return d.Data
+}
+
 // Decode will generically decode the provided resource into a 2-field
 // structure that holds onto the original Resource and the decoded contents.
 //