LP4 M2 - updated starter code for derived accounts

Author: ChrisHowd

DownloadableCodeProjects/LP4_manage-app-data/Data_M2/Starter/Models/CertificateOfDepositAccount.cs

@@ -17,32 +17,53 @@ static CheckingAccount()
         DefaultInterestRate = 0.0;
     }
 
-    public CheckingAccount(string customerIdNumber, double balance = 200, double overdraftLimit = 500)
-        : base(customerIdNumber, balance, "Checking")
+    public CheckingAccount(BankCustomer owner, string customerIdNumber, double balance = 200, double overdraftLimit = 500)
+        : base(owner, customerIdNumber, balance, "Checking")
     {
         OverdraftLimit = overdraftLimit;
-
     }
 
-    public override bool Withdraw(double amount)
+    public override bool Withdraw(double amount, DateOnly transactionDate, TimeOnly transactionTime, string description)
     {
-        if (amount > 0 && Balance + OverdraftLimit >= amount)
+        // try the base class Withdraw method
+        bool result = base.Withdraw(amount, transactionDate, transactionTime, description);
+
+        if (result == false && !description.Contains("-(TRANSFER)"))
         {
-            Balance -= amount;
+            // if the base class Withdraw method failed and the transaction isn't an attempted transfer
+            //  - calculate the overdraft fee
+            //  - check the overdraft limit with the fee applied 
+            //  - charge an overdraft fee
+            double overdraftFee = AccountCalculations.CalculateOverdraftFee(Math.Abs(Balance), BankAccount.OverdraftRate, BankAccount.MaxOverdraftFee);
 
-            // Check if the account is overdrawn
-            if (Balance < 0)
+            if (Balance + OverdraftLimit + overdraftFee >= amount)
             {
-                double overdraftFee = AccountCalculations.CalculateOverdraftFee(Math.Abs(Balance), BankAccount.OverdraftRate, BankAccount.MaxOverdraftFee);
+                priorBalance = Balance;
+                Balance -= amount;
+                string transactionType = "Withdraw";
+
+                // Task 4: Step 8a - Create withdrawal transaction
+                
+                
+
+                priorBalance = Balance;
                 Balance -= overdraftFee;
-                Console.WriteLine($"Overdraft fee of ${overdraftFee} applied.");
+                transactionType = "Bank Fee";
+                string overdraftDescription = "Overdraft fee applied";
+
+                // Task 5: Step 2 - Create overdraft fee transaction
+                
+
+
+                return true;
             }
 
-            return true;
         }
-        return false;
+
+        return result;
     }
 
+
     public override string DisplayAccountInfo()
     {
         return base.DisplayAccountInfo() + $", Overdraft Limit: {OverdraftLimit}";

DownloadableCodeProjects/LP4_manage-app-data/Data_M2/Starter/Models/CheckingAccount.cs

@@ -20,8 +20,8 @@ static MoneyMarketAccount()
         DefaultMinimumOpeningBalance = 2000; // Default minimum opening balance
     }
 
-    public MoneyMarketAccount(string customerIdNumber, double balance = 2000, double minimumBalance = 1000)
-        : base(customerIdNumber, balance, "Money Market")
+    public MoneyMarketAccount(BankCustomer owner,string customerIdNumber, double balance = 2000, double minimumBalance = 1000)
+        : base(owner, customerIdNumber, balance, "Money Market")
     {
         if (balance < DefaultMinimumOpeningBalance)
         {
@@ -32,12 +32,14 @@ public MoneyMarketAccount(string customerIdNumber, double balance = 2000, double
         MinimumOpeningBalance = DefaultMinimumOpeningBalance; // Set the minimum opening balance to the default value
     }
 
-    public override bool Withdraw(double amount)
+    public override bool Withdraw(double amount, DateOnly transactionDate, TimeOnly transactionTime, string description)
     {
         if (amount > 0 && Balance - amount >= MinimumBalance)
         {
-            Balance -= amount;
-            return true;
+            // Call the base class Withdraw method
+            bool result = base.Withdraw(amount, transactionDate, transactionTime, description);
+
+            return result;
         }
         return false;
     }

DownloadableCodeProjects/LP4_manage-app-data/Data_M2/Starter/Models/MoneyMarketAccount.cs

@@ -23,8 +23,8 @@ static SavingsAccount()
         DefaultInterestRate = 0.02; // 2 percent interest rate
     }
 
-    public SavingsAccount(string customerIdNumber, double balance = 500, int withdrawalLimit = 6)
-        : base(customerIdNumber, balance, "Savings")
+    public SavingsAccount(BankCustomer owner, string customerIdNumber, double balance = 500, int withdrawalLimit = 6)
+        : base(owner, customerIdNumber, balance, "Savings")
     {
         if (balance < DefaultMinimumOpeningBalance)
         {
@@ -36,13 +36,15 @@ public SavingsAccount(string customerIdNumber, double balance = 500, int withdra
         MinimumOpeningBalance = DefaultMinimumOpeningBalance; // Set the minimum opening balance to the default value
     }
 
-    public override bool Withdraw(double amount)
+    public override bool Withdraw(double amount, DateOnly transactionDate, TimeOnly transactionTime, string description)
     {
         if (amount > 0 && Balance >= amount && _withdrawalsThisMonth < WithdrawalLimit)
         {
-            Balance -= amount;
+            // Call the base class Withdraw method
+            bool result = base.Withdraw(amount, transactionDate, transactionTime, description);
+
             _withdrawalsThisMonth++;
-            return true;
+            return result;
         }
         return false;
     }

DownloadableCodeProjects/LP4_manage-app-data/Data_M2/Starter/Models/SavingsAccount.cs

@@ -45,7 +45,7 @@ This exercise includes the following tasks:
 1. Review the prototype banking application.
 1. Implement the Bank class.
 1. Update the BankCustomer class.
-1. Update the BankAccount class.
+1. Update the BankAccount and SavingsAccount classes.
 1. Update the SimulateDepositWithdrawTransfer class.
 1. Manage customer, account, and transaction collections using bank objects.
 1. Use a HashSet to ensure unique transactions.
@@ -255,7 +255,7 @@ Use the following steps to complete this task:
 
     The functionality implemented in this task doesn't change the output but will be used in subsequent tasks.
 
-## Task 4: Update the BankAccount class
+## Task 4: Update the BankAccount and SavingsAccount classes
 
 BankAccount objects must be able to store a collection of account transactions. This capability is essential for generating reports and for audits.
 
@@ -386,6 +386,22 @@ Use the following steps to complete this task:
 
     ```
 
+1. Open the CheckingAccount.cs file, and then locate the `// Task 4: Step 8` comment.
+
+1. To add logic that logs the withdrawal transaction, add the following code below the comment:
+
+    ```csharp
+    AddTransaction(new Transaction(transactionDate, transactionTime, priorBalance, amount, AccountNumber, AccountNumber, transactionType, description));
+    ```
+
+1. Locate the `// Task 4: Step 8b` comment.
+
+1. To add logic that logs the overdraft fee transaction, add the following code below the comment:
+
+    ```csharp
+    AddTransaction(new Transaction(transactionDate, transactionTime, priorBalance, overdraftFee, AccountNumber, AccountNumber, transactionType, overdraftDescription));
+    ```
+
 1. Save the BankAccount.cs file.
 
 1. Build and run the application.