#  BankBetter.py (c) Kari Laitinen

#  http://www.naturalprogramming.com

#  2006-05-22  File created.
#  2022-12-18  Converted to Python 3.

#  The BankAccount class in this program has a constructor, i.e.,
#  a method that it invoked automatically when a BankAccount
#  object is created. In Python, the constructor method has
#  the name __init__(). The term 'constructor' is not frequently
#  used in Python documentation, but I guess it is not a big
#  mistake to call the __init__() method a constructor.


class  BankAccount :

   def __init__( self, given_account_owner,
                       given_account_number,
                       initial_balance ) :

      self.account_owner    =  given_account_owner
      self.account_number   =  given_account_number
      self.account_balance  =  initial_balance


   def show_account_data( self ) :

      print( "\n\nB A N K   A C C O U N T   D A T A : " )
      print( "   Account owner :  %s"  %  self.account_owner )
      print( "   Account number:  %d"  %  self.account_number )
      print( "   Current balance: %.2f"  %  self.account_balance )


   def deposit_money( self, amount_to_deposit ) :

      print( "\n\nTRANSACTION FOR ACCOUNT OF %s (Account number %d)"  %  \
            ( self.account_owner, self.account_number ), end="" )
      print( "\n   Amount deposited: %.2f\n   Old account balance: %.2f"  %  \
            ( amount_to_deposit, self.account_balance ), end="" )
      self.account_balance  =  self.account_balance  +  amount_to_deposit
      print( "   New balance: %.2f"  %  self.account_balance, end="" )


   def withdraw_money( self, amount_to_withdraw ) :
   
      print( "\n\nTRANSACTION FOR ACCOUNT OF %s (Account number %d)"  %  \
            ( self.account_owner, self.account_number ), end="" )

      if  self.account_balance  <  amount_to_withdraw :

         print( "\n   -- Transaction not completed: Not enough money"  \
               " to withdraw %.2f"  %  amount_to_withdraw, end="" )

      else :

         print( "\n   Amount withdrawn:    %.2f\n   Old account balance: %.2f"  % \
               ( amount_to_withdraw, self.account_balance ), end="" )
         self.account_balance  =  self.account_balance  -  amount_to_withdraw
         print( "   New balance: %.2f"  %  self.account_balance, end="" )
   

   def transfer_money_to( self, receiving_account,
                                amount_to_transfer ) :

      print( "\n\nTRANSACTION FOR ACCOUNT OF %s (Account number %d)"  %  \
            ( self.account_owner, self.account_number ), end="" )

      if  self.account_balance  >=  amount_to_transfer :

         receiving_account.account_balance  =  \
            receiving_account.account_balance  +  amount_to_transfer

         print( "\n   %.2f was transferred to %s (Account no. %d)."  %   \
               ( amount_to_transfer, receiving_account.account_owner,
                 receiving_account.account_number ), end="" )
         print( "\n   Balance before transfer: %.2f"  %  self.account_balance, end="" )
         self.account_balance  =  self.account_balance  -  amount_to_transfer,
         print( "   New balance: %.2f"  %  self.account_balance, end="" )
   
      else :
      
         print( "\n   -- Not enough money for transfer.", end="" )




#  The main program begins.

jazz_player_account  =  BankAccount( "Louis Armstrong", 121212, 0 )
moon_walker_account  =  BankAccount( "Neil Armstrong",  191919, 7777.77 )

jazz_player_account.deposit_money( 3333.33 )

jazz_player_account.withdraw_money( 4444.44 )

moon_walker_account.transfer_money_to( jazz_player_account, 2222.22 )

moon_walker_account.show_account_data()
jazz_player_account.show_account_data()