adding factory example 🔥

1-factory/main.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"./pets"
+)
+
+func describePet(pet pets.Pet) string {
+	return fmt.Sprintf("%s is %d years old. It's sound is %s", pet.GetName(), pet.GetAge(), pet.GetSound())
+}
+
+func main() {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Println("Are you a dog person or cat person? (dog/cat)")
+	petType, _ := reader.ReadString('\n')
+	petType = strings.Split(petType, "\n")[0]
+
+	pet := pets.PetFactory(petType)
+	petDescription := describePet(pet)
+
+	fmt.Println(petDescription)
+}

1-factory/pets/cat.go

@@ -0,0 +1,19 @@
+package pets
+
+type cat struct {
+	name  string
+	sound string
+	age   int
+}
+
+func (c cat) GetName() string {
+	return c.name
+}
+
+func (c cat) GetAge() int {
+	return c.age
+}
+
+func (c cat) GetSound() string {
+	return c.sound
+}

1-factory/pets/dog.go

@@ -0,0 +1,19 @@
+package pets
+
+type dog struct {
+	name  string
+	sound string
+	age   int
+}
+
+func (d dog) GetName() string {
+	return d.name
+}
+
+func (d dog) GetAge() int {
+	return d.age
+}
+
+func (d dog) GetSound() string {
+	return d.sound
+}

1-factory/pets/main.go

@@ -0,0 +1,26 @@
+package pets
+
+// Pet defines the general structure of all pets
+type Pet interface {
+	GetName() string
+	GetSound() string
+	GetAge() int
+}
+
+// PetFactory is a factory that return the pet requested
+func PetFactory(petType string) Pet {
+	if petType == "dog" {
+		return dog{
+			name:  "Chester",
+			age:   2,
+			sound: "bark",
+		}
+	} else if petType == "cat" {
+		return cat{
+			name:  "Mr. Buttons",
+			age:   3,
+			sound: "meow",
+		}
+	}
+	return nil
+}