Used Factory design pattern to change the method "sendVerificationCode" into an object that would either send the code via phone number or email

Author: Madhavan7

src/main/java/EmailDelivery.java

@@ -0,0 +1,6 @@
+public class EmailDelivery implements ISendVerificationCode{
+    public void sendVerificationCode(String email, int code){
+        /*TODO: When this is implemented, the verification code will be sent to the email specified by String email*/
+        System.out.println("Verification code sent to " + email);
+    }
+}

src/main/java/ISendVerificationCode.java

@@ -0,0 +1,3 @@
+public interface ISendVerificationCode {
+    void sendVerificationCode(String email, int code);
+}

src/main/java/PhoneDelivery.java

@@ -0,0 +1,7 @@
+public class PhoneDelivery implements ISendVerificationCode{
+    public void sendVerificationCode(String phoneNumber, int code){
+        /*TODO: When this is implemented properly, the verification code will be sent to phone number specified by
+        *  String phoneNumber*/
+        System.out.println("Verification code sent to " + phoneNumber);
+    }
+}

src/main/java/UserDatabase.java

@@ -5,10 +5,17 @@ public class UserDatabase implements UserExists, UserRetriever, UserCreator, IRe
     File accounts;
     List<User> accountList;
     public UserDatabase(){
-        this.accounts = new File("UserAccounts.csv");
+        this.accounts = new File("TestUserDatabase3.csv");
         this.accountList = this.getList();
     }
     public UserDatabase(File accounts){
+        if(!accounts.exists()){
+            try {
+                accounts.createNewFile();
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
         this.accounts = accounts;
         this.accountList = this.getList();
     }

src/main/java/UserRegistrationUI.java

@@ -86,7 +86,7 @@ public void registerUser(String username, String password, String email) {
     }
     //For Testing purposes
     public static void main(String[] args){
-        UserDatabase testDB = new UserDatabase(new File("TestUserDatabase3.csv"));
+        UserDatabase testDB = new UserDatabase();
         System.out.println(testDB.UserExists("RandomUser", "[email protected]"));
         UserRegistrationUI testUI = new UserRegistrationUI(testDB);
         testUI.GetUserCredentials();

src/main/java/UserVerificationUI.java

@@ -41,13 +41,8 @@ public void verify(String email){
         verifyButton.addActionListener(this);
         verificationFrame.setVisible(true);
 
-        this.sendVerificationCode(email);
-    }
-    //Sends this.code to the email address given by String email
-    public void sendVerificationCode(String email){
-        /*TODO: When this is implemented, a verification code(this.code) will be sent to email with email address "email",
-           The code will be a random number that is generated, when the user presses the register
-           button(see UserRegistrationUI).*/
+        verificationMethodFactory mailMan = new verificationMethodFactory(email, "Email", code);
+        mailMan.deliverCode();
     }
 
     //For testing purposes

src/main/java/verificationMethodFactory.java

@@ -0,0 +1,18 @@
+public class verificationMethodFactory {
+    String credential;
+    String type;
+    int code;
+    ISendVerificationCode mailMan;
+    public verificationMethodFactory(String credential, String type, int code){
+        this.credential = credential;
+        this.type = type;
+        if(type.equals("Phone")){
+            mailMan = new PhoneDelivery();
+        } else if (type.equals("Email")){
+            mailMan = new EmailDelivery();
+        }
+    }
+    public void deliverCode(){
+        mailMan.sendVerificationCode(credential, code);
+    }
+}

src/test/java/UserDatabaseTest.java

@@ -7,34 +7,34 @@
 public class UserDatabaseTest {
     @Test
     public void addingFilesRightEmailAndUser(){
-        File accounts = new File("TestUserDatabase2.csv");
+        File accounts = new File("Test");
         UserDatabase accountDatabase = new UserDatabase(accounts);
         accountDatabase.createUser("MadhavGopakumar", "123", "[email protected]", "Basic");
         Assertions.assertTrue(accountDatabase.UserExists("MadhavGopakumar", "[email protected]"));
     }
     @Test
     public void addingMultipleFiles(){
-        File accounts = new File("TestUserDatabase2.csv");
+        File accounts = new File("Test");
         UserDatabase accountDatabase = new UserDatabase(accounts);
         accountDatabase.createUser("MeenakshiGopakumar", "123", "[email protected]", "Basic");
         Assertions.assertTrue(accountDatabase.UserExists("MeenakshiGopakumar", "[email protected]"));
     }
     @Test
     public void rightEmailWrongUser(){
-        File accounts = new File("TestUserDatabase2.csv");
+        File accounts = new File("Test");
         UserDatabase accountDatabase = new UserDatabase(accounts);
         accountDatabase.createUser("MadhavGopakumar", "123", "[email protected]", "Basic");
         Assertions.assertTrue(accountDatabase.UserExists("MadG", "[email protected]"));
     }
     @Test
     public void rightUserWrongEmail(){
-        File accounts = new File("TestUserDatabase2.csv");
+        File accounts = new File("Test");
         UserDatabase accountDatabase = new UserDatabase(accounts);
         Assertions.assertTrue(accountDatabase.UserExists("MeenakshiGopakumar", "ma"));
     }
     @Test
     public void listedUsers(){
-        File accounts = new File("TestUserDatabase2.csv");
+        File accounts = new File("Test");
         UserDatabase accountDatabase = new UserDatabase(accounts);
         accountDatabase.createUser("MeenakshiGopakumar", "123", "[email protected]", "Basic");
         List<User> lst = accountDatabase.getList();
@@ -44,7 +44,7 @@ public void listedUsers(){
 
     @Test
     public void userGot() {
-        File accounts = new File("TestUserDatabase2.csv");
+        File accounts = new File("Test");
         UserDatabase accountDatabase = new UserDatabase(accounts);
         accountDatabase.createUser("MeenakshiGopakumar", "123", "[email protected]", "Basic");
         User user = accountDatabase.getUser("MeenakshiGopakumar");