From 69a572a40b27c1f9aa48f07a30261dbcf093428d Mon Sep 17 00:00:00 2001
From: Ruben Hoenle <Ruben.Hoenle@stackit.cloud>
Date: Wed, 12 Nov 2025 15:01:13 +0100
Subject: [PATCH 1/2] feat(core): new util func to convert enum value slices to
 string slices

---
 CHANGELOG.md             |  7 ++++--
 core/CHANGELOG.md        |  3 +++
 core/VERSION             |  2 +-
 core/utils/utils.go      | 14 ++++++++++++
 core/utils/utils_test.go | 49 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 72 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 200d471a7..71dce2d87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 ## Release (2025-xx-xx)
-- `core`: [v0.18.0](core/CHANGELOG.md#v0180)
-  - **New:** Added duration utils
+- `core`: 
+  - [v0.19.0](core/CHANGELOG.md#v0190)
+    - **New:** Added new `TestEnumSliceToStringSlice` util func
+  - [v0.18.0](core/CHANGELOG.md#v0180)
+    - **New:** Added duration utils
 - `stackitmarketplace`:
   - [v1.17.0](services/stackitmarketplace/CHANGELOG.md#v1170)
     - **Feature:** Add new field `Scope` in `CatalogProductPricingOption` model
diff --git a/core/CHANGELOG.md b/core/CHANGELOG.md
index 84e4ef57c..43eb430f6 100644
--- a/core/CHANGELOG.md
+++ b/core/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.19.0
+- **New:** Added new `TestEnumSliceToStringSlice` util func
+
 ## v0.18.0
 - **New:** Added duration utils
 
diff --git a/core/VERSION b/core/VERSION
index a86d3df72..96fb87f8e 100644
--- a/core/VERSION
+++ b/core/VERSION
@@ -1 +1 @@
-v0.18.0
+v0.19.0
diff --git a/core/utils/utils.go b/core/utils/utils.go
index a0915445a..e36612c0e 100644
--- a/core/utils/utils.go
+++ b/core/utils/utils.go
@@ -13,3 +13,17 @@ func Contains[T comparable](slice []T, element T) bool {
 	}
 	return false
 }
+
+// EnumSliceToStringSlice is a generic function to convert a slice of any type T
+// that has the underlying type 'string' to a slice of string.
+// The constraint ~string allows T to be any type whose
+// underlying type is string (like the enum types from the generated STACKIT SDK modules).
+func EnumSliceToStringSlice[T ~string](inputSlice []T) []string {
+	result := make([]string, len(inputSlice))
+
+	for i, element := range inputSlice {
+		result[i] = string(element)
+	}
+
+	return result
+}
diff --git a/core/utils/utils_test.go b/core/utils/utils_test.go
index b50765983..056f089fb 100644
--- a/core/utils/utils_test.go
+++ b/core/utils/utils_test.go
@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"reflect"
 	"testing"
 )
 
@@ -37,3 +38,51 @@ func TestContainsInt(t *testing.T) {
 		t.Fatalf("Should not be contained")
 	}
 }
+
+func TestEnumSliceToStringSlice(t *testing.T) {
+	type TestEnum string
+
+	const TESTENUM_CREATING TestEnum = "CREATING"
+	const TESTENUM_ACTIVE TestEnum = "ACTIVE"
+	const TESTENUM_UPDATING TestEnum = "UPDATING"
+	const TESTENUM_DELETING TestEnum = "DELETING"
+	const TESTENUM_ERROR TestEnum = "ERROR"
+
+	type args[T interface{ ~string }] struct {
+		inputSlice []T
+	}
+	type test[T interface{ ~string }] struct {
+		name string
+		args args[T]
+		want []string
+	}
+	tests := []test[TestEnum]{
+		{
+			name: "default",
+			args: args[TestEnum]{
+				inputSlice: []TestEnum{
+					TESTENUM_CREATING,
+					TESTENUM_ACTIVE,
+					TESTENUM_UPDATING,
+					TESTENUM_DELETING,
+					TESTENUM_ERROR,
+				},
+			},
+			want: []string{"CREATING", "ACTIVE", "UPDATING", "DELETING", "ERROR"},
+		},
+		{
+			name: "empty input slice",
+			args: args[TestEnum]{
+				inputSlice: []TestEnum{},
+			},
+			want: []string{},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := EnumSliceToStringSlice(tt.args.inputSlice); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("EnumSliceToStringSlice() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

From 509a7ce83610ffe8499e7773be40f81f67fbb472 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ruben=20H=C3=B6nle?= <Ruben.Hoenle@stackit.cloud>
Date: Wed, 12 Nov 2025 15:12:58 +0100
Subject: [PATCH 2/2] Apply suggestions from code review

Co-authored-by: Marcel Jacek <72880145+marceljk@users.noreply.github.com>
---
 CHANGELOG.md      | 2 +-
 core/CHANGELOG.md | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71dce2d87..84d20f08e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 ## Release (2025-xx-xx)
 - `core`: 
   - [v0.19.0](core/CHANGELOG.md#v0190)
-    - **New:** Added new `TestEnumSliceToStringSlice` util func
+    - **New:** Added new `EnumSliceToStringSlice ` util func
   - [v0.18.0](core/CHANGELOG.md#v0180)
     - **New:** Added duration utils
 - `stackitmarketplace`:
diff --git a/core/CHANGELOG.md b/core/CHANGELOG.md
index 43eb430f6..3bea787af 100644
--- a/core/CHANGELOG.md
+++ b/core/CHANGELOG.md
@@ -1,5 +1,5 @@
 ## v0.19.0
-- **New:** Added new `TestEnumSliceToStringSlice` util func
+- **New:** Added new `EnumSliceToStringSlice ` util func
 
 ## v0.18.0
 - **New:** Added duration utils