From 459876c8b7de5dba240da24088fc582a7d5c26f7 Mon Sep 17 00:00:00 2001
From: Virgil <virgil@lethean.io>
Date: Thu, 2 Apr 2026 05:27:30 +0000
Subject: [PATCH] feat(i18n): expose available languages helper

Co-Authored-By: Virgil <virgil@lethean.io>
---
 i18n.go      | 12 ++++++++++++
 i18n_test.go | 18 ++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/i18n.go b/i18n.go
index acc8a1a..4bb14d2 100644
--- a/i18n.go
+++ b/i18n.go
@@ -55,6 +55,18 @@ func CurrentLanguage() string {
 	return "en"
 }
 
+// AvailableLanguages returns the loaded language tags on the default service.
+func AvailableLanguages() []string {
+	if svc := Default(); svc != nil {
+		langs := svc.AvailableLanguages()
+		if len(langs) == 0 {
+			return nil
+		}
+		return append([]string(nil), langs...)
+	}
+	return nil
+}
+
 // SetMode sets the translation mode for the default service.
 func SetMode(m Mode) {
 	if svc := Default(); svc != nil {
diff --git a/i18n_test.go b/i18n_test.go
index 1058b74..b86b4f5 100644
--- a/i18n_test.go
+++ b/i18n_test.go
@@ -119,6 +119,24 @@ func TestCurrentLanguage_Good(t *testing.T) {
 	assert.NotEmpty(t, lang)
 }
 
+func TestAvailableLanguages_Good(t *testing.T) {
+	prev := Default()
+	t.Cleanup(func() {
+		SetDefault(prev)
+	})
+
+	svc, err := New()
+	require.NoError(t, err)
+	SetDefault(svc)
+
+	langs := AvailableLanguages()
+	require.NotEmpty(t, langs)
+	assert.Equal(t, svc.AvailableLanguages(), langs)
+
+	langs[0] = "zz"
+	assert.NotEqual(t, "zz", svc.AvailableLanguages()[0])
+}
+
 // --- SetMode / CurrentMode ---
 
 func TestSetMode_Good(t *testing.T) {