Merge pull request #115 from PdxCodeGuild/zach-lab10-atm

Zach lab10 atm

Author: nathanBonilla

code/zach/lab10-atm.py

@@ -0,0 +1,83 @@
+from datetime import datetime
+
+class ATM:
+
+    def __init__(self, balance=0, interest_rate=0.001):
+        self.balance = balance
+        self.interest_rate = interest_rate
+        self.transactions = []
+
+    def check_balance(self):
+        """Returns the account balance."""
+        self.transactions.append({'Date': datetime.now().strftime(
+            "%Y-%m-%d %H:%M:%S"), 'transaction_type': 'checked balance', 'balance': self.balance})
+        return self.balance
+
+    def deposit(self, amount):
+        """Deposits the given amount in the account."""
+        previous_balance = self.balance
+        self.balance += amount
+        self.transactions.append({'Date': datetime.now().strftime("%Y-%m-%d %H:%M:%S"), 'transaction_type': 'deposit',
+            'amount': amount, 'previous_balance': previous_balance, 'new_balance': self.balance})
+        return self.balance
+
+    def check_withdrawal(self, amount):
+        """Returns true if the withdrawn amount won't put the account in the negative"""
+        if self.balance - amount >= 0: 
+            return True
+        else:
+            self.transactions.append({'date': datetime.now().strftime("%Y-%m-%d %H:%M:%S"), 'transaction_type': 'Withdrawal', 'result': 'insufficient funds',
+                'amount': amount, 'balance': self.balance})
+            return False
+
+    def withdraw(self, amount):
+        """Withdraws the amount from the account and returns it."""
+        previous_balance = self.balance
+        self.balance -= amount
+        self.transactions.append({'date': datetime.now().strftime("%Y-%m-%d %H:%M:%S"), 'transaction_type': 'Withdrawal',
+            'amount': amount, 'previous_balance': previous_balance, 'new_balance': self.balance})
+        return self.balance
+
+    def calc_interest(self):
+        """Returns the amount of interest calculated on the account."""
+        return self.balance * self.interest_rate
+
+
+atm = ATM()  # create an instance of our class
+print('Welcome to the ATM')
+while True:
+    command = input('Enter a command: ')
+    if command == 'balance':
+        balance = atm.check_balance()  # call the check_balance() method
+        print(f'Your balance is ${balance}')
+    elif command == 'deposit':
+        amount = float(input('How much would you like to deposit? '))
+        atm.deposit(amount)  # call the deposit(amount) method
+        print(f'Deposited ${amount}')
+    elif command == 'withdraw':
+        amount = float(input('How much would you like '))
+        # call the check_withdrawal(amount) method
+        if atm.check_withdrawal(amount):
+            atm.withdraw(amount)  # call the withdraw(amount) method
+            print(f'Withdrew ${amount}')
+        else:
+            print('Insufficient funds')
+    elif command == 'interest':
+        amount = atm.calc_interest()  # call the calc_interest() method
+        atm.deposit(amount)
+        print(f'Accumulated ${amount} in interest')
+    elif command == 'transactions':
+        for transaction in atm.transactions:
+            print(transaction)
+    elif command == 'help':
+        print('Available commands:')
+        print('balance  - get the current balance')
+        print('deposit  - deposit money')
+        print('withdraw - withdraw money')
+        print('interest - accumulate interest')
+        print('transactions - print a list of transactions')
+        print('exit     - exit the program')
+    elif command == 'exit':
+        break
+    else:
+        print('Command not recognized')