From d6643e83e009919905c0f09c700d3e06c2131633 Mon Sep 17 00:00:00 2001
From: Shubham Zanwar <zanwar.shubham@gmail.com>
Date: Fri, 25 Sep 2020 19:00:01 +0530
Subject: [PATCH] =?UTF-8?q?implementing=20the=20abstract=20factory=20?=
 =?UTF-8?q?=F0=9F=94=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 2-abstract-factory/README.md             |  0
 2-abstract-factory/abstractFactory.go    | 18 ++++++++++++++
 2-abstract-factory/dominos.go            | 30 +++++++++++++++++++++++
 2-abstract-factory/genericGarlicBread.go | 19 +++++++++++++++
 2-abstract-factory/genericPizza.go       | 25 +++++++++++++++++++
 2-abstract-factory/main.go               | 31 ++++++++++++++++++++++++
 2-abstract-factory/pizzaHut.go           | 30 +++++++++++++++++++++++
 7 files changed, 153 insertions(+)
 create mode 100644 2-abstract-factory/README.md
 create mode 100644 2-abstract-factory/abstractFactory.go
 create mode 100644 2-abstract-factory/dominos.go
 create mode 100644 2-abstract-factory/genericGarlicBread.go
 create mode 100644 2-abstract-factory/genericPizza.go
 create mode 100644 2-abstract-factory/main.go
 create mode 100644 2-abstract-factory/pizzaHut.go

diff --git a/2-abstract-factory/README.md b/2-abstract-factory/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/2-abstract-factory/abstractFactory.go b/2-abstract-factory/abstractFactory.go
new file mode 100644
index 0000000..f07503c
--- /dev/null
+++ b/2-abstract-factory/abstractFactory.go
@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+type iPizzaFactory interface {
+	createPizza() iPizza
+	createGarlicBread() iGarlicBread
+}
+
+func getFactory(chain string) (iPizzaFactory, error) {
+	if chain == "P" {
+		return &pizzaHutFactory{}, nil
+	}
+	if chain == "D" {
+		return &dominosFactory{}, nil
+	}
+	return nil, fmt.Errorf("Enter a valid chain type next time")
+}
diff --git a/2-abstract-factory/dominos.go b/2-abstract-factory/dominos.go
new file mode 100644
index 0000000..980caeb
--- /dev/null
+++ b/2-abstract-factory/dominos.go
@@ -0,0 +1,30 @@
+package main
+
+type dominosFactory struct{}
+
+type dominosPizza struct {
+	pizza
+}
+
+type dominosGarlicBread struct {
+	garlicBread
+}
+
+func (d *dominosFactory) createPizza() iPizza {
+	return &dominosPizza{
+		pizza{
+			name:     "margherita",
+			price:    200.5,
+			toppings: []string{"tomatoes", "basil", "olive oil"},
+		},
+	}
+}
+
+func (d *dominosFactory) createGarlicBread() iGarlicBread {
+	return &dominosGarlicBread{
+		garlicBread{
+			name:  "cheesy bread sticks",
+			price: 150.00,
+		},
+	}
+}
diff --git a/2-abstract-factory/genericGarlicBread.go b/2-abstract-factory/genericGarlicBread.go
new file mode 100644
index 0000000..4e899a6
--- /dev/null
+++ b/2-abstract-factory/genericGarlicBread.go
@@ -0,0 +1,19 @@
+package main
+
+type iGarlicBread interface {
+	GetPrice() float64
+	GetName() string
+}
+
+type garlicBread struct {
+	name  string
+	price float64
+}
+
+func (g *garlicBread) GetName() string {
+	return g.name
+}
+
+func (g *garlicBread) GetPrice() float64 {
+	return g.price
+}
diff --git a/2-abstract-factory/genericPizza.go b/2-abstract-factory/genericPizza.go
new file mode 100644
index 0000000..67533f9
--- /dev/null
+++ b/2-abstract-factory/genericPizza.go
@@ -0,0 +1,25 @@
+package main
+
+type iPizza interface {
+	GetPrice() float64
+	GetName() string
+	GetToppings() []string
+}
+
+type pizza struct {
+	name     string
+	price    float64
+	toppings []string
+}
+
+func (p *pizza) GetName() string {
+	return p.name
+}
+
+func (p *pizza) GetPrice() float64 {
+	return p.price
+}
+
+func (p *pizza) GetToppings() []string {
+	return p.toppings
+}
diff --git a/2-abstract-factory/main.go b/2-abstract-factory/main.go
new file mode 100644
index 0000000..1d64152
--- /dev/null
+++ b/2-abstract-factory/main.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+func describePizza(pizza iPizza) {
+	fmt.Printf("the pizza %s has toppings %s. It costs Rs. %.2f\n", pizza.GetName(), strings.Join(pizza.GetToppings(), ", "), pizza.GetPrice())
+}
+
+func describeGarlicBread(garlicBread iGarlicBread) {
+	fmt.Printf("the garlic bread, %s costs Rs. %.2f\n", garlicBread.GetName(), garlicBread.GetPrice())
+}
+
+func main() {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Println("Dominos or PizzaHut? (D/P)")
+	pizzaType, _ := reader.ReadString('\n')
+	pizzaType = strings.Split(pizzaType, "\n")[0]
+
+	pizzaFactory, _ := getFactory(pizzaType)
+
+	pizza := pizzaFactory.createPizza()
+	garlicBread := pizzaFactory.createGarlicBread()
+
+	describePizza(pizza)
+	describeGarlicBread(garlicBread)
+}
diff --git a/2-abstract-factory/pizzaHut.go b/2-abstract-factory/pizzaHut.go
new file mode 100644
index 0000000..d780489
--- /dev/null
+++ b/2-abstract-factory/pizzaHut.go
@@ -0,0 +1,30 @@
+package main
+
+type pizzaHutFactory struct{}
+
+type pizzaHutPizza struct {
+	pizza
+}
+
+type pizzaHutGarlicBread struct {
+	garlicBread
+}
+
+func (p *pizzaHutFactory) createPizza() iPizza {
+	return &pizzaHutPizza{
+		pizza{
+			name:     "pepperoni",
+			price:    230.3,
+			toppings: []string{"olives", "mozzarella", "pork"},
+		},
+	}
+}
+
+func (p *pizzaHutFactory) createGarlicBread() iGarlicBread {
+	return &pizzaHutGarlicBread{
+		garlicBread{
+			name:  "garlic bread",
+			price: 180.99,
+		},
+	}
+}