Prudhvi-LLD-June-CoffeeMachine

CoffeeMachine/README.md

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+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).

CoffeeMachine/src/App.java

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+import java.util.*;
+
+public class App {
+    public static void main(String[] args) throws Exception {
+
+       DisplayPanel dp = DisplayPanel.getDisplayPanelInstace();
+       dp.displayWelcomeScreen();
+
+    }
+
+
+}
+

CoffeeMachine/src/Coffee.java

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+public class Coffee {
+
+    boolean milk;
+    boolean water;
+    boolean sugar;
+    boolean hot;
+    String quantity;
+    boolean strong;
+    String coffeeName;
+    public static Coffee  coffee;
+
+    public static Coffee getCoffeeInstance(){
+        return (coffee == null)? new Coffee() : coffee;
+    }
+    public Coffee(){
+
+    }
+
+    public void buildCoffee(Coffee cfb){
+            //send message to kitchen
+    }
+
+
+}

CoffeeMachine/src/CoffeeBuilder.java

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+public class CoffeeBuilder {
+
+    boolean milk;
+    boolean water;
+    boolean sugar;
+    boolean hot;
+    String quantity;
+    boolean strong;
+    String coffeeName;
+    Inventory inventory;
+
+    public static CoffeeBuilder coffeeBuilder;
+    OrderManager orderManager;
+
+    public CoffeeBuilder() {
+        milk = false;
+        water = false;
+        sugar = false;
+        hot = false;
+        quantity = "Medium";
+        strong = false;
+        coffeeName  = "";
+        orderManager =  OrderManager.getOrderManagerInstance();
+        inventory = Inventory.getInventoryInstance();
+    }
+
+    public static CoffeeBuilder getCoffeeBuilderInstance(){
+        return (coffeeBuilder == null)? new CoffeeBuilder() : coffeeBuilder;
+    }
+
+    public void buildCoffee( CoffeeBuilder cfb){
+
+    }
+
+     public void setMilk(boolean flag){
+        this.milk = flag;
+    }
+    public void setWater(boolean flag){
+        this.water= flag;
+    }
+    public void setSugar(boolean flag){
+        this.sugar = flag;
+    }
+    public void setHot(boolean flag){
+        this.hot = flag;
+    }
+    public void setQuantity(String quant){
+        this.quantity = quant;
+    }
+    public void setcoffeeName(String cn){
+        this.coffeeName = cn;
+    }
+    public void setStrong(boolean flag){
+        this.strong = flag;
+    }
+
+
+    public boolean getMilk(){
+        return milk;
+    }
+    public boolean getWater(){
+        return water;
+    }
+    public boolean getSugar(){
+        return sugar;
+    }
+    public boolean getHot(){
+        return hot;
+    }
+    public String getQuantity(){
+        return quantity;
+    }
+    public boolean getStrong(){
+        return strong;
+    }
+    public String getcoffeeName(){
+        return coffeeName;
+    }
+
+    public int placeOrder(CoffeeBuilder cb){
+        int orderNum = cb.orderManager.createNewOrder();
+        addBills(cb,orderNum);
+        return orderNum;
+    }
+    private void addBills(CoffeeBuilder cb, int orderNum){
+
+        orderManager.addBills(orderNum, inventory.getCoffeesAndPrices().get(cb.coffeeName));
+        orderManager.addBills(orderNum, (cb.getMilk() ? inventory.getAddonAndPrices().get("Milk"):0.0));
+        orderManager.addBills(orderNum, (cb.getWater() ? inventory.getAddonAndPrices().get("Water"):0.0));
+        orderManager.addBills(orderNum, (cb.getHot() ? inventory.getAddonAndPrices().get("Hot"):0.0));
+        orderManager.addBills(orderNum, (cb.getStrong() ? inventory.getAddonAndPrices().get("Strong"):0.0));
+        orderManager.addBills(orderNum, (cb.getSugar() ? inventory.getAddonAndPrices().get("Sugar"):0.0));
+
+    }
+
+    public double calculateTotalBill(int orderNum){
+        return orderManager.getTotalBill(orderNum);
+    }
+
+
+}

CoffeeMachine/src/DisplayPanel.java

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+/*solely for the purpose of displaying the Output and taking input details, this will also validate the input*/
+
+import java.util.*;
+
+public class DisplayPanel {
+    Inventory inventory;
+    int MAX_COFFESS;
+    public static DisplayPanel displayPanel;
+    CoffeeBuilder coffeeBuilder;
+    Scanner s;
+    public static DisplayPanel getDisplayPanelInstace(){
+        return (displayPanel == null)? new DisplayPanel() : displayPanel;
+    }
+
+    public DisplayPanel(){
+        inventory = Inventory.getInventoryInstance();
+        s = new Scanner(System.in);
+    }
+
+    public void displayWelcomeScreen(){
+        System.out.println("\n######### Welcome to Prudhvi Coffee Shop ###########\n");
+        System.out.print("\n*--* Please select your coffee from the below list *--*\n");
+        displayCoffeeOptions();
+        takeUserInput();
+
+    }
+
+    private void takeUserInput(){
+
+        int coffeeSelection = takeIntUserInput();
+        if(coffeeSelection == 9){
+            exitFromApp();
+        }
+
+        if(coffeeSelection < 1 || coffeeSelection > MAX_COFFESS){
+            System.out.println("\nYou have made an incorrect selection, could you please select again?\n");
+            takeUserInput();
+        }else{
+            String selectedCoffee = inventory.getCoffeeName(coffeeSelection);
+            System.out.println("You have selected " + selectedCoffee);
+            coffeeBuilder = CoffeeBuilder.getCoffeeBuilderInstance();
+            coffeeBuilder.coffeeName = selectedCoffee;
+            //offer add-ons
+            System.out.println("\n Would you like to have addons ? \n 1. Yes \n 2. No");
+            int choice = takeIntUserInput();
+            if(choice == 2){
+                checkOut(coffeeBuilder);
+            }else{
+                offerAddons(coffeeBuilder);
+                checkOut(coffeeBuilder);
+            }
+        }
+
+    }
+    private void exitFromApp(){
+        System.out.println("\nThank you for visiting! Have a nice Day...\n");
+        System.exit(0);
+    }
+    private void checkOut(CoffeeBuilder coffeeBuilder){
+        int orderNum = coffeeBuilder.placeOrder(coffeeBuilder);
+        displayOrderDetails();
+        double totalBill = coffeeBuilder.calculateTotalBill(orderNum);
+        System.out.print("\nHere is your Order Number : "+ orderNum);
+        System.out.print("\nHere is your total bill [0.5% service tax included]: ₹"+ Math.round(totalBill));
+        System.out.println("\n\nPlease take your bill and wait while we make your coffee... \nHave a nice day!!!\n");
+        exitFromApp();
+
+    }
+
+    private void displayOrderDetails(){
+
+        System.out.print("\nThank you!, Here are your order details :\n");
+        System.out.println("\nCoffee : " + coffeeBuilder.getcoffeeName());
+        System.out.println("\nAdditional Milk : " + (coffeeBuilder.getMilk()==true ? "Yes" : "No"));
+        System.out.println("\nHot Coffee : " + (coffeeBuilder.getHot() ==true? "Yes" : "No"));
+        System.out.println("\nSize : " + coffeeBuilder.getQuantity());
+        System.out.println("\nStrong Coffee : " + (coffeeBuilder.getStrong()==true? "Yes" : "No"));
+        System.out.println("\nMore Sugar : " + (coffeeBuilder.getSugar()==true? "Yes" : "No"));
+        System.out.println("\nMore Water : " + (coffeeBuilder.getWater()==true? "Yes" : "No"));
+
+    }
+
+    private int takeIntUserInput(){
+        int n = s.nextInt();
+        if(n == 9 || n == 44){
+            exitFromApp();
+        }
+        return n;
+    }
+
+    private void offerAddons(CoffeeBuilder coffeeBuilder){
+        Map<String, Double> addonAndPrices = inventory.getAddonAndPrices();
+        int selection;
+
+        System.out.println("\nWould you like to have additional Milk for  ₹" + addonAndPrices.get("Milk") + " ?\n 1. Yes \n 2. No \n33. Exit from Addons \n44. Exit Order");
+        selection = takeIntUserInput();
+        validateInput(selection);
+        coffeeBuilder.setMilk(selection == 1 ? true : false);
+        System.out.println("\nWould you like to add more Water for  ₹" +  addonAndPrices.get("Water") + " ? \n 1. Yes \n 2. No \n33. Exit from Addons \n43. Exit Order");
+        selection = takeIntUserInput();
+        validateInput(selection);
+        coffeeBuilder.setWater(selection == 1 ? true : false);
+        System.out.println("\nWould you like to have additional Sugar for  ₹" + addonAndPrices.get("Sugar") + " ?\n 1. Yes \n 2. No \n33. Exit from Addons \n44. Exit Order");
+        selection = takeIntUserInput();
+        validateInput(selection);
+        coffeeBuilder.setSugar(selection == 1 ? true : false);
+        System.out.println("\nWould you like to have it Strong for ₹" + addonAndPrices.get("Strong") + " ?\n 1. Yes \n 2. No \n33. Exit from Addons \n44. Exit Order");
+        selection = takeIntUserInput();
+        validateInput(selection);
+        coffeeBuilder.setStrong(selection == 1 ? true : false);
+        System.out.println("\nWould you like have it very Hot for ₹" + addonAndPrices.get("Hot") + " ? \n 1. Yes \n 2. No \n33. Exit from Addons \n44. Exit Order");
+        selection = takeIntUserInput();
+        validateInput(selection);
+        coffeeBuilder.setHot(selection == 1 ? true : false);
+
+    }
+
+    private void validateInput(int selection){
+        // if(selection != 1 && selection != 2){
+        //     System.out.println("\nYou have made an incorrect selection, could you please select again?\n");
+        // }
+        if(selection == 33){
+            checkOut(coffeeBuilder);
+        } else if(selection == 44 ){
+            exitFromApp();
+        }
+    }
+
+    private void displayCoffeeOptions(){
+
+        Map<String, Double> coffeeMap = inventory.getCoffeesAndPrices();
+        Map<Integer, String> coffeeSnoMap = inventory.getCoffeesAndSNo();
+        MAX_COFFESS = coffeeMap.size();
+
+        System.out.println("\nS.No  Name             Price\n");
+        for (int i = 1;i<=coffeeSnoMap.size();i++) {
+            System.out.println(i+ ".   "+ coffeeSnoMap.get(i) + "    ₹" + coffeeMap.get(coffeeSnoMap.get(i)));
+
+        }
+        System.out.println("\n *--* Enter 9 for exit *--* \n");
+    }
+
+}

CoffeeMachine/src/Inventory.java

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+import java.util.*;
+
+public class Inventory {
+
+    public static Inventory inventory ;
+    Map<Integer, String> coffeeSnoMap;
+    Map<String, Double> coffeePriceMap;
+    Map<Integer, String> addOnsSnoMap;
+    Map<String, Double> addOnsPriceMap;
+
+    public Inventory() {
+        coffeePriceMap = new HashMap<>();
+        coffeeSnoMap = new HashMap<>();
+        addOnsSnoMap = new HashMap<>();
+        addOnsPriceMap = new HashMap<>();
+        getCoffeesInfo();
+
+    }
+    public static Inventory getInventoryInstance(){
+        return (inventory == null)? new Inventory() : inventory;
+    }
+
+    public Map<String, Double> getCoffeesAndPrices(){
+       return coffeePriceMap;
+    }
+    public Map<String, Double> getAddonAndPrices(){
+       return addOnsPriceMap;
+    }
+    public Map<Integer, String> getCoffeesAndSNo(){
+       return coffeeSnoMap;
+    }
+
+    public String getCoffeeName(int sno){
+        return coffeeSnoMap.get(sno);
+    }
+
+    private void getCoffeesInfo(){
+
+        coffeePriceMap.put("Nescafe Classic", 120.0);
+        coffeePriceMap.put("Continental Extra", 110.50);
+        coffeePriceMap.put("Bru Instant", 85.10);
+        coffeePriceMap.put("Tata Coffee", 90.50);
+
+        coffeeSnoMap.put(1,"Nescafe Classic");
+        coffeeSnoMap.put(2,"Continental Extra");
+        coffeeSnoMap.put(3,"Bru Instant");
+        coffeeSnoMap.put(4, "Tata Coffee");
+
+        addOnsSnoMap.put(1, "Milk");
+        addOnsSnoMap.put(2, "Water");
+        addOnsSnoMap.put(3, "Sugar");
+        addOnsSnoMap.put(4, "Hot");
+        addOnsSnoMap.put(5, "Strong");
+
+        addOnsPriceMap.put("Milk", 10.0);
+        addOnsPriceMap.put("Water", 20.0);
+        addOnsPriceMap.put("Sugar", 10.0);
+        addOnsPriceMap.put("Hot", 5.0);
+        addOnsPriceMap.put("Strong", 15.0);
+
+
+    }
+
+
+
+}