feat: translator

translator/google/translator.go

@@ -0,0 +1,40 @@
+package google
+
+import (
+	translateV2 "cloud.google.com/go/translate"
+	translateV3 "cloud.google.com/go/translate/apiv3"
+)
+
+type Translator struct {
+	options *options
+
+	clientV2 *translateV2.Client
+	clientV3 *translateV3.TranslationClient
+}
+
+func NewTranslator(opts ...Option) *Translator {
+	op := options{}
+	for _, o := range opts {
+		o(&op)
+	}
+
+	return &Translator{
+		options: &op,
+	}
+}
+
+func (t *Translator) Translate(source, sourceLang, targetLang string) (string, error) {
+	switch t.options.version {
+	default:
+		fallthrough
+	case "v1":
+		return t.TranslateV1(source, sourceLang, targetLang)
+
+	case "v2":
+		text, _, err := t.TranslateV2(source, sourceLang, targetLang)
+		return text, err
+
+	case "v3":
+		return t.TranslateV3(source, sourceLang, targetLang)
+	}
+}