import filestore
import time
import datetime



#############################################################################
#This is the function that is called at the beginning of the program
def postbank():                                                                         ###
    print ("Welcome to PostBank, We care for youn")                                    ###
    prompt=int(raw_input("""To open a new bank account, Press 1n"""+                   ###
                        """To access your existing account & transact press 2n"""))    ###
    if prompt==1:                                                                       ###
        cus=BankAccount()#creates a new customer profile                                ###
    elif prompt==2:                                                                     ###
        cus=ReturnCustomer()#checks for existing customer                               ###
    else:                                                                               ###
        print "You have pressed the wrong key, please try again"                        ###
        postbank()                                                                      ###
###########################################################################################




##class for creating an instance of a new back account and other default bank functions
class BankAccount:
    """Class for a bank account"""
    type="Normal Account"
    def __init__(self):
        ##calls functions in the module filestore
        self.username, self.userpassword, self.balance=filestore.cusaccountcheck()
        print ("Thank you %s, your account is set up and ready to use,n a 100 pounds has been credited to your account" %self.username)
        time.sleep(2)
        self.userfunctions()



    def userfunctions(self):
        print("nnTo access any function below, enter the corresponding key")
        print ("""To:
check Balance, press B.
deposit cash,  press D.
withdraw cash, press W.
Delete account press X.
exit service,  press En
:"""),
        ans=raw_input("").lower()
        if ans=='b':
            ##passcheck function confirms stored password with user input
            self.passcheck()
            self.checkbalance()
        elif ans=='d':
            self.passcheck()
            self.depositcash()
        elif ans=='w':
            self.passcheck()
            self.withdrawcash()
        elif ans=='x':
            print ("%s, your account is being deleted"%self.username)
            time.sleep(1)
            print ("Minions at work")
            time.sleep(1)
            filestore.deleteaccount(self.username)
            print ("Your account has been successfuly deleted, goodbye")
        elif ans=='e':
            print ("Thank you for using Dot Inc Bank Services")
            time.sleep(1)
            print ("Goodbye %s" %self.username)
            exit()

        else:
            print "No function assigned to this key, please try again"
            self.userfunctions()

    def checkbalance(self):
        date=datetime.date.today()
        date=date.strftime('%d-%B-%Y')
        self.working()
        print ("Your account balance as at {} is {}").format(date, self.balance)
        self.transact_again()

    def withdrawcash(self):
        amount=float(raw_input("::n Please enter amount to withdrawn: "))
        self.balance-=amount
        self.working()
        print ("Your new account balance is %.2f" %self.balance)
        print ("::n")
        filestore.balupdate(self.username, -amount)
        self.transact_again()

    def depositcash(self):
        amount=float(raw_input("::nPlease enter amount to be depositedn: "))
        self.balance+=amount
        self.working()
        print ("Your new account balance is %.2f" %self.balance)
        print ("::n")
        filestore.balupdate(self.username, amount)
        self.transact_again()



    def transact_again(self):
        ans=raw_input("Do you want to do any other transaction? (y/n)n").lower()
        self.working()
        if ans=='y':
            self.userfunctions()
        elif ans=='n':
            print ("Thank you for using PostBank we value you. Have a good day")
            time.sleep(1)
            print ("Goodbye {}").format(self.username)
            exit()
        elif ans!='y' and ans!='n':
            print "Unknown key pressed, please choose either 'N' or 'Y'"
            self.transact_again()


    def working(self):
        print("working"),
        time.sleep(1)
        print ("..")
        time.sleep(1)
        print("..")
        time.sleep(1)


    def passcheck(self):
        """prompts user for password with every transaction and counterchecks it with stored passwords"""
        b=3
        while b>0:
            ans=raw_input("Please type in your password to continue with the transactionn: ")
            if ans==self.userpassword:
                return True


            else:
                print "That is the wrong password"
                b-=1
                print ("%d more attempt(s) remaining" %b)

        print ("Account has been freezed due to three wrong password attempts,n contact your bank for help, bye bye")
        time.sleep(1)
        print ("...")
        time.sleep(1)
        print("...")
        time.sleep(1)

        exit()


class ReturnCustomer(BankAccount):
    type="Normal Account"
    def __init__(self):
        self.username, self.userpassword, self.balance=filestore.oldcuscheck()
        self.userfunctions()

postbank() ##calling the function to run the program

##creating empty lists everytime the program is initialized
cusnames=[]
cuspasswords=[]
cusbalance=[]

##opening the storage files to collect old customer data
namefile=open("cusnamefile.txt", "r")
passfile=open("cuspassfile.txt", "r")
balfile=open("cusbalfile.txt", "r")

##populate the empty lists with data from storage files
##check list of customer names
for line in namefile:
        cusnames.append(line[:-1])
namefile.close()

##check list of customer passwords
for line in passfile:
        cuspasswords.append(line[:-1])
passfile.close()

##check list of customer balances
for line in balfile:
        cusbalance.append(line[:-1])
balfile.close()


##function creates a new user
def cusaccountcheck():
        name=""
        pin=""

        while name not in cusnames and len(name)<3:
                name=raw_input("Please type in your name for this new bank accountn")
                if name not in cusnames:
                        cusnames.append(name)
                        filewrite(cusnames)
                        break
                print("Sorry, that user name is already in use")
                ans=raw_input("Are you already a member at this bank? (y/n)n")
                if ans.lower()=='y':
                        oldcuscheck()
                else:
                        cusaccountcheck()

        while len(pin)<4:
                pin=raw_input("Please assign a password to this account, pin should be at least 5 charactersn")
                if len(pin)>4:
                        print "your pin has been successfully saved"
                        print "Remember to always keep your pin safe and don't disclose it to anybody"
                        cuspasswords.append(pin)
                        cusbalance.append(0)
                        balance=100.0
                        cusbalance[cusnames.index(name)]=balance
                        filewrite(cuspasswords)
                        filewrite(cusbalance)
                        break

                print ("Sorry, that is a short password")

        return name,pin, balance

##Function to check returning customer
def oldcuscheck():
        name=""
        while name not in cusnames:
                name=raw_input("What is your name?n")
                if name in cusnames:
                        username=name
                        userpassword=cuspasswords[cusnames.index(name)]
                        balance=float(cusbalance[cusnames.index(name)])
                        return username, userpassword, balance
                else:
                        print ("Sorry %s, It looks like you didn't spell you name correctly or your name is not in our records"%name)
                        again=raw_input("would like to type in your name again? (y/n)")
                        if again.lower()=='y':
                                oldcuscheck()
                        else:
                                print ("Bye bye, thank you for trying Postbank")
                                exit()




##This function writes new data into the storage files whenever called upon.
def filewrite(item):
        if item==cusnames:
                text=open("cusnamefile.txt","w")
                for i in item:
                        text.write(i+"n")
                text.close()

        elif item==cuspasswords:
                text=open("cuspassfile.txt", "w")
                for i in item:
                        text.write(i+"n")
                text.close()

        elif item==cusbalance:
                text=open("cusbalfile.txt", "w")
                for i in item:
                        text.write(str(i)+"n")
                text.close()

###This function updates the account balance after a withdraw or deposit transaction
def balupdate(ind, amount):
        accountnumber=cusnames.index(ind)
        accountbal=float(cusbalance[accountnumber])
        accountbal+=amount
        cusbalance[accountnumber]=accountbal
        text=open("cusbalfile.txt", "w")
        for i in cusbalance:
                text.write(str(i)+"n")
        text.close()

###This function deletes an existing account and any data that was stored about it is cleared
def deleteaccount(name):
        accountnumber=cusnames.index(name)
        del cusnames[accountnumber]
        filewrite(cusnames)
        del cusbalance[accountnumber]
        filewrite(cusbalance)
        del cuspasswords[accountnumber]
        filewrite(cuspasswords)
        return None

450693.0
6782449.0
3525.0
6000000.0
5532.0

Loise Njogu
Moses Njagi
MakerFuse Limited
Dad
Dennis Meyer

12345
09876
makerpassword
thedadpassword
234234