support translations

cmd/any2anexoj-cli/main.go

@@ -13,12 +13,15 @@ import (
 	"github.com/nmoniz/any2anexoj/internal/trading212"
 	"github.com/spf13/pflag"
 	"golang.org/x/sync/errgroup"
+	"golang.org/x/text/language"
 )
 
 // TODO: once we support more brokers or exchanges we should make this parameter required and
 // remove/change default
 var platform = pflag.StringP("platform", "p", "trading212", "one of the supported platforms")
 
+var lang = pflag.StringP("language", "l", language.Portuguese.String(), "2 letter language code")
+
 var readerFactories = map[string]func() internal.RecordReader{
 	"trading212": func() internal.RecordReader {
 		return trading212.NewRecordReader(os.Stdin, internal.NewOpenFIGI(&http.Client{Timeout: 5 * time.Second}))
@@ -33,14 +36,19 @@ func main() {
 		os.Exit(1)
 	}
 
-	err := run(context.Background(), *platform)
+	if lang == nil || len(*lang) == 0 {
+		slog.Error("--language flag is required")
+		os.Exit(1)
+	}
+
+	err := run(context.Background(), *platform, *lang)
 	if err != nil {
 		slog.Error("found a fatal issue", slog.Any("err", err))
 		os.Exit(1)
 	}
 }
 
-func run(ctx context.Context, platform string) error {
+func run(ctx context.Context, platform, lang string) error {
 	ctx, cancel := signal.NotifyContext(ctx, os.Kill, os.Interrupt)
 	defer cancel()
 
@@ -66,7 +74,12 @@ func run(ctx context.Context, platform string) error {
 		return err
 	}
 
-	printer := NewPrettyPrinter(os.Stdout)
+	loc, err := NewLocalizer(lang)
+	if err != nil {
+		return fmt.Errorf("create localizer: %w", err)
+	}
+
+	printer := NewPrettyPrinter(os.Stdout, loc)
 
 	printer.Render(writer)