Merge branch 'feature/withdraw-money-system' into feature/balance-operations

src/withdrawMoney.c

@@ -0,0 +1,59 @@
+#include "withdrawMoney.h"
+
+void notifyCustomer(amountToWithdraw, remainingAccountBalance) {
+    char returnToHomeInput = NULL;
+    
+    printf("You have successfully withdrawn %f €.\n", amountToWithdraw);
+    printf("Remaining account balance: %f €\n\n", remainingAccountBalance);
+    printf("Press any key to return to home page: ");
+    scanf("%c", &returnToHomeInput);
+    
+    if (returnToHomeInput) {
+        showAllMenuEntries();
+    }
+}
+
+float initiateWithdraw(float amountToWithdraw, float availableAccountBalance) {
+    float remainingAccountBalance = (availableAccountBalance - amountToWithdraw);
+
+    return remainingAccountBalance;
+}
+
+void withdraw(int user_id) {
+    float amountToWithdraw;
+    char tryDifferentAmount;
+    float remainingAccountBalance;
+    bool updateSuccess = false;
+
+    printf("Enter amount to withdraw: ");
+    scanf("%f", &amountToWithdraw);
+
+    float availableAccountBalance = getAvailableAccountBalance(user_id);
+    if (amountToWithdraw > 0) {
+        if (amountToWithdraw <= availableAccountBalance) {
+            remainingAccountBalance = initiateWithdraw(amountToWithdraw, availableAccountBalance);
+            updateSuccess = updateAccountBalance(user_id, remainingAccountBalance);
+            if( updateSuccess ) {
+                notifyCustomer(amountToWithdraw, remainingAccountBalance);
+            }
+            else {
+                printf("Some error occured! Sorry for the inconvenience caused.\n");
+            }
+            
+        }
+        else {
+            printf("You don't have sufficient money to withdraw. Do you want to try different amount?\n[y]: Yes, any other key : exit");
+            scanf("%c", &tryDifferentAmount);
+            if (tryDifferentAmount == 'Y' || tryDifferentAmount == 'y') {
+                withdraw(user_id);
+            }
+            else {
+                showAllMenuEntries();
+            }
+        }
+    }
+    else {
+        printf("Invalid Input! Please try again.\n");
+        withdraw(user_id);
+    }
+}

src/withdrawMoney.h

@@ -0,0 +1,6 @@
+#include <stdio.h>
+#include <stdbool.h>
+
+void withdraw(int user_id);
+float initiateWithdraw(float amountToWithdraw, float availableAccountBalance);
+void notifyCustomer(amountToWithdraw, remainingAccountBalance);