implementing the adapter pattern 🔥

4-adapter/englishSpeaker.go

@@ -0,0 +1,7 @@
+package main
+
+type englishSpeaker struct{}
+
+func (e *englishSpeaker) greetInEnglish() string {
+	return "Hello there"
+}

4-adapter/englishToSpanish.go

@@ -0,0 +1,15 @@
+package main
+
+func translate(englishMesage string) string {
+	// some complex logic to translate
+	return "¡Hola!"
+}
+
+type englishToSpanishAdapter struct {
+	speaker englishSpeaker
+}
+
+func (a *englishToSpanishAdapter) greetInSpanish() string {
+	spanishMessage := translate(a.speaker.greetInEnglish())
+	return spanishMessage
+}

4-adapter/genericSpanishSpeaker.go

@@ -0,0 +1,5 @@
+package main
+
+type speakSpanish interface {
+	greetInSpanish() string
+}

4-adapter/main.go

@@ -0,0 +1,21 @@
+package main
+
+import "fmt"
+
+func main() {
+	espanol := spanishSpeaker{}
+	englishwoman := englishSpeaker{}
+
+	fmt.Println("Without translation:")
+	fmt.Println("Español says: ", espanol.greetInSpanish())
+	fmt.Println("English Woman says: ", englishwoman.greetInEnglish())
+
+	adaptedEnglishwoman := englishToSpanishAdapter{
+		speaker: englishwoman,
+	}
+
+	fmt.Println("------------")
+	fmt.Println("With translation:")
+	fmt.Println("Español says: ", espanol.greetInSpanish())
+	fmt.Println("English Woman says: ", adaptedEnglishwoman.greetInSpanish())
+}

4-adapter/spanishSpeaker.go

@@ -0,0 +1,7 @@
+package main
+
+type spanishSpeaker struct{}
+
+func (s *spanishSpeaker) greetInSpanish() string {
+	return "¡Hola!"
+}