def mainMenu():
    print("""
###############################################################################
#                                                                             #
#                            Clive's Carpets                                  #
#                          Please Login Below!                                #
#                                                                             #
###############################################################################
""")
    validateUser()

def adminMenu():
    while True:
        print("""
###############################################################################
#                                                                             #
#                            Clive's Carpets                                  #
#                               Admin Menu                                    #
#                                                                             #
# 1 - Add a New User                                                          #
# 2 - Exit                                                                    #
#                                                                             #
###############################################################################
""")

        adminMenu = input('Which option would you like to choose? "1" or "2": ')
        if adminMenu == '1':
            newUser()
            break
        elif adminMenu == '2':
            exit()
            break

def userMenu():
    print("User Menu")
    exit()

def newUser():
    userType, username, password1, password2 = "", "", "", ""
    while True:

        userType = input('What type of user are you creating?\n(1) Admin\n(2) Defnyddiwr')
        if userType == '-1':
            mainMenu()
        if len(userType) > 1:
            print('\nInvalid Input!\n')
        elif userType.isdigit() != True:
            print('Please enter a number!')
        elif int(userType) <1:
            print('\nInvalid Input!\n')
        elif int(userType) >2:
            print('\nInvalid Input!\n')
        else:
            break
    while True:
        username = input('\n Please enter the username of the new user: ')
        if username == '-1':
            mainMenu()
        if len(username) >10:
            print('\nUsername must be less than 11 characters!\n')
        elif username.isalpha() == False:
            print('\nThe username must only contain alpha!\n')
        else:
            break
    while True:
        password1 = input('\nPlease enter the password for the user: ')
        if password1 == '-1':
            mainMenu()
        if len(password1) > 10:
            print('\nPassword must be less than 11 characters!\n')
        password2 = input('\nPlease enter the password again: ')
        if password2 == '-1':
            mainMenu()
        if len(password2) > 10:
            print('\nPassword must be less than 11 characters!\n')
        if password1 != password2:
            print('\nPasswords do not match!\n')
        else:
            break

    username = username.lower()
    password1 = password1.lower()
    password2 = password2.lower()

    userTypeStore = str(userType).ljust(1)
    usernameStore = username.ljust(10)
    passwordStore = password1.ljust(10)

    store = open('users.txt','a')
    iStore = usernameStore + passwordStore + userTypeStore + "\n"
    store.write(iStore)
    store.close()

    print('\nNew User Created: ')
    print('Usertype: ',userType)
    print('Username: ',username)
    print('Password: **********')
    mainMenu()
def validateUser():
    validateUserType = ""
    validateUsername = ""
    validatePassword = ""

    username = str(input('\nPlease enter your username: \n'))
    password = str(input('\nPlease enter your password: \n'))

    while True:
        try:
            readUsers = open('users.txt','r')
            validateCounter = 0

            while True:
                location = readUsers.readline()
                validateUserType = location[20:21]
                validateUsertype = validateUserType.strip()

                validateUsername = location [0:10]
                validateUsername = validateUsername.strip()
                validateUsername = validateUsername.lower()
                username = username.lower()

                validatePassword = location[10:20]
                validatePassword = validatePassword.strip()
                validatePassword = validatePassword.lower()

                if location == "":
                    readUsers.close()
                    break
                if validateUserType == str(1) and validateUsername == username and validatePassword == password:
                    validateCounter = validateCounter + 1
                    adminMenu()
                    break
                if validateUserType == str(2) and validateUsername == username and validatePassword == password:
                    validateCounter = validateCounter + 1
                    userMenu()
                    break

            if validateCounter ==0:
                print('\nNo user in the file with those login details. \n')
                validateUser()
        except FileNotFoundError:
            print('There is no Users file for you to search! How about making your first account?\nTop Tip, make it a System Administrator Account!\n')
            newUser()
def main():
    mainMenu()
main()