refactor: simplify T function and remove unused localization functions

cmd/upload/cmd.go

@@ -11,6 +11,7 @@ import (
 	"github.com/charmbracelet/log"
 	"github.com/krau/SaveAny-Bot/client/bot"
 	"github.com/krau/SaveAny-Bot/common/cache"
+	"github.com/krau/SaveAny-Bot/common/i18n"
 	"github.com/krau/SaveAny-Bot/common/utils/ioutil"
 	"github.com/krau/SaveAny-Bot/common/utils/tgutil"
 	"github.com/krau/SaveAny-Bot/config"
@@ -61,6 +62,7 @@ func Upload(cmd *cobra.Command, args []string) error {
 	if err := config.Init(ctx, configFile); err != nil {
 		return fmt.Errorf("failed to load config: %w", err)
 	}
+	i18n.Init(config.C().Lang)
 	cache.Init()
 	database.Init(ctx)
 

common/i18n/i18n.go

@@ -44,57 +44,7 @@ func Init(lang string) {
 
 func T(key i18nk.Key, templateData ...map[string]any) string {
 	if localizer == nil || bundle == nil {
-		panic("localizer or bundle is not initialized, call Init() first")
+		Init("zh-Hans")
-	}
-	templateDataMap := make(map[string]any)
-	for _, data := range templateData {
-		maps.Copy(templateDataMap, data)
-	}
-	msg, err := localizer.Localize(&i18n.LocalizeConfig{
-		MessageID:    string(key),
-		TemplateData: templateDataMap,
-	})
-	if err != nil {
-		return string(key)
-	}
-	return msg
-}
-
-func TWithLang(lang, key string, templateData ...map[string]any) string {
-	if bundle == nil {
-		panic("bundle is not initialized, call Init() first")
-	}
-	templateDataMap := make(map[string]any)
-	for _, data := range templateData {
-		maps.Copy(templateDataMap, data)
-	}
-	localizerWithLang := i18n.NewLocalizer(bundle, lang)
-	msg, err := localizerWithLang.Localize(&i18n.LocalizeConfig{
-		MessageID:    key,
-		TemplateData: templateDataMap,
-	})
-	if err != nil {
-		return key
-	}
-	return msg
-}
-
-// Only use in tests or packages that load before i18n
-func TWithoutInit(lang string, key i18nk.Key, templateData ...map[string]any) string {
-	bundle := i18n.NewBundle(language.SimplifiedChinese)
-	bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
-	files, err := localesFS.ReadDir("locale")
-	if err != nil {
-		return string(key)
-	}
-	for _, file := range files {
-		if _, err := bundle.LoadMessageFileFS(localesFS, "locale/"+file.Name()); err != nil {
-			return string(key)
-		}
-	}
-	localizer := i18n.NewLocalizer(bundle, lang)
-	if localizer == nil {
-		return string(key)
 	}
 	templateDataMap := make(map[string]any)
 	for _, data := range templateData {