def register_form():
    counter=0
    username=raw_input("Username: ")
    password=raw_input("Password: ")
    confirm_password=raw_input("Confirm password: ")
    while password!=confirm_password:
        counter+=1
        if counter==3:
            print("Operation Timed Out!")
            break
        else:
            print("Confirm password is incorrect.")
            password=raw_input("Password: ")
            confirm_password=raw_input("Confirm password: ")

    if password==confirm_password:
        username_file=open("username.txt","r")
        stored_username=username_file.read().split(",")
        username_list_length=0
        while username_list_length<= len(stored_username)-1:
            if stored_username[username_list_length]==username:
                print "Username has been taken,please try agian."
                username_list_length=0
                username=raw_input("Username: ")
                password=raw_input("Password: ")
                confirm_password=raw_input("Confirm password: ")
            else:
                user_file=open(username+".txt","w")
                user_file.writelines("jan\n"+"feb\n"+"mar\n"+"apr\n"+"may\n"+"jun\n"+"jul\n"+"aug\n"+"sep\n"+"oct\n"+"nov\n"+"dec\n")
                user_file.close()
                username_file=open("username.txt","a")
                username_file.writelines(username+","+password+",")
                username_file.close()

                print("Register success.")
                press_enter=raw_input("Press enter to return to homepage")
                break

def login_form():
    global username
    global password
    username=raw_input("Username: ")
    password=raw_input("Password: ")
    username_file=open("username.txt","r")
    stored_username=username_file.read().split(",")
    username_list_length=0
    while username_list_length<= len(stored_username)-1:
        if stored_username[username_list_length]==username:
            if stored_username[username_list_length+1]==password:
                print "Logged in!"
                break
            elif stored_username[username_list_length+1]!=password:
                print "Password is incorrect.Please try agian."
                print password
                password=raw_input("Password: ")
        elif username_list_length==len(stored_username)-1:
            print"Username not registerd."
            frontpage()
            username_list_length=0
            break
        else:
            username_list_length +=2

def frontpage():
    global frontpage_button
    frontpage_button=raw_input("Login or Register").lower()
    while frontpage_button=="register" or "login":
        if frontpage_button=="register":
            register_form()
            frontpage_button=raw_input("Login or Register").lower()
        elif frontpage_button=="login":
            login_form()
            break

def edit():
    income = input("Income : RM")
    print "Please put 0 if no rental fee."
    rental = input("Rental fee : RM")
    print "please put 0 if no mortgage."
    mortgage = input("Mortgage : RM")
    user_file.writelines("Income:"+`income`+"\n")
    user_file.writelines("Rental Fee:"+`rental`+"\n")
    user_file.writelines("Mortgage:"+`mortgage`+"\n")
    if rental=="0":
        income=income-mortgage
    elif mortgage=="0":
        income=income-rental
    elif mortgage=="0" and rental=="0":
        income=income
    else:
        income==income-rental-mortgage
    food=income*20/100
    utilities=income*5/100
    entertainment=income*15/100
    debt=income*15/100
    transport=income*20/100
    expenses=income*15/100
    saving=income*10/100
    user_file.writelines("Food:RM"+`food`+"\n")
    user_file.writelines("Utilities:RM"+`utilities`+"\n")
    user_file.writelines("Entertainment:RM"+`entertainment`+"\n")
    user_file.writelines("Debt and Charity:RM"+`debt`+"\n")
    user_file.writelines("Transport:RM"+`transport`+"\n")
    user_file.writelines("Expenses:RM"+`expenses`+"\n")
    user_file.writelines("Saving:RM"+`saving`+"\n")
    user_file.writelines(" \n")
    user_file.close()
    go_to_view=raw_input("Press enter to proceed.")
    view()

def view():
    user_file=open(username+'.txt',"r+")
    for iterator in user_file:
            item = iterator.split("\n")
            item = item[0]
            if item == month:
                for i in user_file:
                    print i
    calander()



def calander():
    global month
    month=raw_input("What month?").lower()
    if month=="january":
        jan()
    elif month=="february":
        feb()
    elif month=="march":
        mar()
    elif month=="april":
        apr()
    elif month=="may":
        may()
    elif month=="june":
        jun()
    elif month=="july":
        jul()
    elif month=="august":
        aug()
    elif month=="september":
        sep()
    elif month=="october":
        octo()
    elif month=="november":
        nov()
    elif month=="december":
        dec()

def jan():
    global user_file
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        user_file=open(username+'.txt',"rw+")
        for iterator in user_file:
            item = iterator.split("\n")
            item = item[0]
            if item == month:
                edit()
                view()
    if selection=="view":
        view()

def feb():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":

        edit()
        view()
    if selection=="view":
        view()

def mar():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def apr():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def may():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def jun():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def jul():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def aug():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def sep():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def octo():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def nov():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

def dec():
    selection=raw_input("Edit or View").lower()
    if selection=="edit":
        edit()
        view()
    if selection=="view":
        view()

frontpage()
calander()