fix(i18n): preserve translate result status

Co-Authored-By: Virgil <virgil@lethean.io>

i18n_test.go

@@ -64,6 +64,24 @@ func TestTranslate_Good_MissingKey(t *testing.T) {
 	assert.Equal(t, "nonexistent.translation.key", result.Value)
 }
 
+func TestTranslate_Good_SameTextAsKey(t *testing.T) {
+	svc, err := New()
+	require.NoError(t, err)
+	prev := Default()
+	SetDefault(svc)
+	t.Cleanup(func() {
+		SetDefault(prev)
+	})
+
+	AddMessages("en", map[string]string{
+		"exact.same.key": "exact.same.key",
+	})
+
+	result := Translate("exact.same.key")
+	require.True(t, result.OK)
+	assert.Equal(t, "exact.same.key", result.Value)
+}
+
 // --- Package-level Raw() ---
 
 func TestRaw_Good(t *testing.T) {

service.go

@@ -562,9 +562,31 @@ func (s *Service) CurrentHandlers() []KeyHandler {
 //	T("i18n.done.delete", "file")       // "File deleted"
 //	T("i18n.fail.delete", "file")       // "Failed to delete file"
 func (s *Service) T(messageID string, args ...any) string {
+	result, _ := s.translateWithStatus(messageID, args...)
+	s.mu.RLock()
+	debug := s.debug
+	s.mu.RUnlock()
+	if debug {
+		return debugFormat(messageID, result)
+	}
+	return result
+}
+
+// Translate translates a message by its ID and returns a Core result.
+func (s *Service) Translate(messageID string, args ...any) core.Result {
+	value, ok := s.translateWithStatus(messageID, args...)
+	s.mu.RLock()
+	debug := s.debug
+	s.mu.RUnlock()
+	if debug {
+		value = debugFormat(messageID, value)
+	}
+	return core.Result{Value: value, OK: ok}
+}
+
+func (s *Service) translateWithStatus(messageID string, args ...any) (string, bool) {
 	s.mu.RLock()
 	handlers := append([]KeyHandler(nil), s.handlers...)
-	debug := s.debug
 	s.mu.RUnlock()
 
 	result := RunHandlerChain(handlers, messageID, args, func() string {
@@ -576,21 +598,12 @@ func (s *Service) T(messageID string, args ...any) string {
 		s.mu.RLock()
 		text := s.resolveWithFallbackLocked(messageID, data)
 		s.mu.RUnlock()
-		if text == "" {
-			return s.handleMissingKey(messageID, args)
-		}
 		return text
 	})
-	if debug {
-		return debugFormat(messageID, result)
+	if result != "" {
+		return result, true
 	}
-	return result
-}
-
-// Translate translates a message by its ID and returns a Core result.
-func (s *Service) Translate(messageID string, args ...any) core.Result {
-	value := s.T(messageID, args...)
-	return core.Result{Value: value, OK: translateOK(messageID, value)}
+	return s.handleMissingKey(messageID, args), false
 }
 
 // resolveDirect performs exact-key lookup in the current language, its base
@@ -1138,28 +1151,6 @@ func (s *Service) addAvailableLanguageLocked(tag language.Tag) {
 	}
 }
 
-func translateOK(messageID, value string) bool {
-	if value == "" {
-		return false
-	}
-	prefix := "[" + messageID + "] "
-	if core.HasPrefix(value, prefix) {
-		value = core.TrimPrefix(value, prefix)
-	} else if value == "["+messageID+"]" {
-		value = ""
-	}
-	if value == "" {
-		return false
-	}
-	if value == messageID {
-		return false
-	}
-	if value == "["+messageID+"]" {
-		return false
-	}
-	return true
-}
-
 // LoadFS loads additional locale files from a filesystem.
 //
 // Example: