#Josh Averill 10/09/2018 Nea Task Version one (Login)
import random

UsernamePassword = []
UsefulList = []
#Lists used to store data for passwords as well as checking them
with open("UsernamePassword.csv") as DataFile:
    for EachLine in DataFile:
        EachLine=EachLine.strip()
        EachColumnItem = EachLine.split(",")
        UsernamePassword.append(EachColumnItem)

def MainProgram():
    Dice_Roll()

def Dice_Roll():
    DiceRoll = str(input("Do you want to roll the dice?"))
    if DiceRoll == "yes":
        print("Your number is: " + str(random.randint(1,6)))
        MainProgram()
    else:
        print("System failure, please contact developer.")

def Username():
    Firstname = str(input("What is your firstname?"))
    Age = str(input("How old are you"))
    username = Firstname[:3]+Age
    print("Your username is:", username)

    return username
#Function To create a username for new users
def Password():
    password = str(input("What would you like your password to be"))
    return password
#Asks new user for password of their choice

def NewLogin(UsernamePassword,UsefulList):
   username = Username()
   password = Password()
   UsefulList.append(username)
   UsefulList.append(password)
   UsernamePassword.append(UsefulList)
   with open("UsernamePassword.csv", "w") as DataFile:
       for EachList in UsernamePassword:
           for EachItem in EachList:
              DataFile.write(EachItem + ",")
       DataFile.write("\n")
#^^^^^^^ New login function creates and saves a new user profile
def Login(UsernamePassword,UsefulList):
    WhewHew = 0
    username = str(input("What is your username"))
    password = str(input("What is your password"))
    for EachList in UsernamePassword:
            if username and password in UsernamePassword[WhewHew]:
               Row = WhewHew
               print("Username and password correct Welcome to the dice game")
               Dice_Roll()
            else:
                WhewHew = WhewHew+1
    print("Username Incorrect")
    Login(UsernamePassword,UsefulList)
#^^^^^ Login function manages the Login for current users checking a external file to authenticate their login
NewUser = str(input("Are you a new user?"))
NewUser = str.upper(NewUser)
if NewUser == "NO":
          Login(UsernamePassword,UsefulList)
elif NewUser == "YES":
          NewLogin(UsernamePassword,UsefulList)
          print("Time to Login")
          Login(UsernamePassword,UsefulList)
else:
          print("Please enter yes or no")
Login(UsernamePassword,UsefulList)
#This short section of code is what checks if the user is new or not