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# LOGIN SYTEM WHICH WORKS WITH FILES

import os, base64, time, sys



def intro():
    usr = raw_input('[+] Basic Login System [+]\n[1] Create Account\n[2] Login\n[3] View Users \n[4] Exit\n')
    if usr==('1'):
        createAccount()
    elif usr==('2'):
        login()
    elif usr==('3'):
        viewUsers()
    elif usr==('4'):
        sys.exit


def createAccount():

    fob = open('users.txt','w')
    fob2 = open('pass.txt','w')

    username = raw_input('username: ')
    pswd = raw_input('password: ') # Add getpass
    pswd2 = raw_input('re-enter password: ') # Add password security eg char limtit

    if pswd==(pswd2):
        encodePass = base64.b64encode(pswd) # Add more security
        fob.write(username)
        fob.close()
        fob2.write(encodePass)
        fob2.close()
        time.sleep(1)
        print '[+] Account created [+]\n[+] You can now log on [+]'
        login()

    else:
        print '[!] Passwords did not match [!]'
        createAccount()
        fob.close()

def login(usrname):

    fob3 = open('users.txt','r')
    fob4 = open('pass.txt','r')
    readLine = fob3.readline()
    readLine2 = fob4.readline()
    decode = base64.b64decode(readLine2)

    usrname = raw_input('username: ')

    if usrname==(readLine):
        passw = raw_input('password: ')
        if passw ==(decode):
            time.sleep(1)
            loggedOnUser = usrname
            print '[+] You have succesfully logged on [+]'
            print '---------------------------------------'
            panel()

        else:
            print '[!] Password incorrect [!]'
            login()

    else:
        print '[!] Username does not exist [!]'
        login()

    fob3.close()
    fob4.close()


def viewUsers():

    fob5 = open('users.txt','r')
    read = fob5.read()

    login = raw_input('admin: ')

    if login==(adminPass):
        print '[+] Current users [+]'
        print read
    else:
        print '[!] Password Incorrect [!]'
        time.sleep(1)
        exit


def panel():
    print('[+] Username: ' + usrname)

intro()