refactor(i18n): simplify current-state aliases

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

i18n.go

@@ -65,7 +65,9 @@ func SetLanguage(lang string) error {
 //
 //	lang := i18n.CurrentLanguage()
 func CurrentLanguage() string {
-	return Language()
+	return defaultServiceValue("en", func(svc *Service) string {
+		return svc.Language()
+	})
 }
 
 // Language returns the current language code.
@@ -101,7 +103,13 @@ func AvailableLanguages() []string {
 //
 //	langs := i18n.CurrentAvailableLanguages()
 func CurrentAvailableLanguages() []string {
-	return AvailableLanguages()
+	return defaultServiceValue([]string{}, func(svc *Service) []string {
+		langs := svc.AvailableLanguages()
+		if len(langs) == 0 {
+			return []string{}
+		}
+		return append([]string(nil), langs...)
+	})
 }
 
 // SetMode sets the translation mode for the default service.
@@ -139,9 +147,7 @@ func Fallback() string {
 //
 //	mode := i18n.CurrentMode()
 func CurrentMode() Mode {
-	return defaultServiceValue(ModeNormal, func(svc *Service) Mode {
-		return svc.Mode()
-	})
+	return defaultServiceValue(ModeNormal, func(svc *Service) Mode { return svc.Mode() })
 }
 
 // CurrentFallback returns the current fallback language.
@@ -150,9 +156,7 @@ func CurrentMode() Mode {
 //
 //	fallback := i18n.CurrentFallback()
 func CurrentFallback() string {
-	return defaultServiceValue("en", func(svc *Service) string {
-		return svc.Fallback()
-	})
+	return defaultServiceValue("en", func(svc *Service) string { return svc.Fallback() })
 }
 
 // CurrentFormality returns the current default formality.
@@ -161,9 +165,7 @@ func CurrentFallback() string {
 //
 //	formality := i18n.CurrentFormality()
 func CurrentFormality() Formality {
-	return defaultServiceValue(FormalityNeutral, func(svc *Service) Formality {
-		return svc.Formality()
-	})
+	return defaultServiceValue(FormalityNeutral, func(svc *Service) Formality { return svc.Formality() })
 }
 
 // CurrentDebug reports whether debug mode is enabled on the default service.
@@ -172,7 +174,7 @@ func CurrentFormality() Formality {
 //
 //	debug := i18n.CurrentDebug()
 func CurrentDebug() bool {
-	return Debug()
+	return defaultServiceValue(false, func(svc *Service) bool { return svc.Debug() })
 }
 
 // Debug reports whether debug mode is enabled on the default service.
@@ -326,9 +328,7 @@ func PrependHandler(handlers ...KeyHandler) {
 //
 //	handlers := i18n.CurrentHandlers()
 func CurrentHandlers() []KeyHandler {
-	return defaultServiceValue([]KeyHandler{}, func(svc *Service) []KeyHandler {
-		return svc.Handlers()
-	})
+	return defaultServiceValue([]KeyHandler{}, func(svc *Service) []KeyHandler { return svc.Handlers() })
 }
 
 // Handlers returns a copy of the default service's handler chain.

localise.go

@@ -91,7 +91,7 @@ func SetLocation(location string) {
 //
 //	location := i18n.CurrentLocation()
 func CurrentLocation() string {
-	return Location()
+	return defaultServiceValue("", func(svc *Service) string { return svc.Location() })
 }
 
 // Location returns the current default location context.
@@ -122,7 +122,7 @@ func Direction() TextDirection {
 //
 //	dir := i18n.CurrentDirection()
 func CurrentDirection() TextDirection {
-	return Direction()
+	return defaultServiceValue(DirLTR, func(svc *Service) TextDirection { return svc.Direction() })
 }
 
 // IsRTL returns true if the current language uses right-to-left text.
@@ -138,7 +138,9 @@ func IsRTL() bool { return Direction() == DirRTL }
 // Example:
 //
 //	rtl := i18n.CurrentIsRTL()
-func CurrentIsRTL() bool { return IsRTL() }
+func CurrentIsRTL() bool {
+	return defaultServiceValue(false, func(svc *Service) bool { return svc.IsRTL() })
+}
 
 // CurrentPluralCategory returns the plural category for the current default language.
 //
@@ -146,9 +148,7 @@ func CurrentIsRTL() bool { return IsRTL() }
 //
 //	cat := i18n.CurrentPluralCategory(2)
 func CurrentPluralCategory(n int) PluralCategory {
-	return defaultServiceValue(PluralOther, func(svc *Service) PluralCategory {
-		return svc.PluralCategory(n)
-	})
+	return defaultServiceValue(PluralOther, func(svc *Service) PluralCategory { return svc.PluralCategory(n) })
 }
 
 func detectLanguage(supported []language.Tag) string {