The very basic client app, not adapted for mobiles.

client/internal/services/core/translations/translations.go

@@ -0,0 +1,81 @@
+package translations
+
+import (
+	"fmt"
+	"log/slog"
+	"os"
+
+	"bunker/client/internal/application"
+	"bunker/client/internal/langfiles"
+	"bunker/client/internal/services/core"
+
+	"fyne.io/fyne/v2/lang"
+)
+
+var _ = core.Translations(&translations{})
+
+type translations struct {
+	app        *application.Application
+	mainWindow core.MainWindow
+}
+
+// Initialize инициализирует сервис.
+func Initialize(app *application.Application) error {
+	transl := &translations{
+		app: app,
+	}
+
+	if err := app.RegisterService(transl); err != nil {
+		return fmt.Errorf("%w: %w", core.ErrOptions, err)
+	}
+
+	return nil
+}
+
+func (t *translations) Configure() error {
+	if err := t.initializeSysInfoHandler(); err != nil {
+		return fmt.Errorf("configure: %w", err)
+	}
+
+	return nil
+}
+
+func (t *translations) ConnectDependencies() error {
+	mainWindowRaw := t.app.Service(core.ServiceNameMainWindow)
+	if mainWindowRaw == nil {
+		return fmt.Errorf("connect dependencies: get main window: %w", application.ErrServiceNotFound)
+	}
+
+	mainWindow, valid := mainWindowRaw.(core.MainWindow)
+	if !valid {
+		return fmt.Errorf("connect dependencies: type assert main window: %w", core.ErrMainWindowIsInvalid)
+	}
+
+	t.mainWindow = mainWindow
+
+	return nil
+}
+
+func (t *translations) Initialize() error {
+	langFromEnv, _ := os.LookupEnv("LANG")
+
+	slog.Info("Current system locale.", "locale", lang.SystemLocale().String(), "LANG", langFromEnv)
+
+	if err := lang.AddTranslationsFS(langfiles.LangFiles, "files"); err != nil {
+		return fmt.Errorf("%w: load translations: %w", core.ErrTranslations, err)
+	}
+
+	return nil
+}
+
+func (t *translations) Name() string {
+	return core.ServiceNameTranslations
+}
+
+func (t *translations) LaunchStartupTasks() error {
+	return nil
+}
+
+func (t *translations) Shutdown() error {
+	return nil
+}