import tkinter as tk
import math

userName = 'Tom'
Password = '123'

#=========================================== SEARCH =======================================

def search():
    ser = tk.Tk()
    ser.geometry("500x500")
    sert = tk.Label(master = cal, text = "Search Menu")
    sert.grid(column=2, row=0)
    calo = tk.Label(master = cal, text = "Search your reading age: ")
    calo.grid(column=2, row=2)
    cals= tk.Entry(master =cal)
    cals.grid(column=2, row=3)
    calser = tk.button(master = cal, text = "search reading age", command = r_age)
    cale.grid(column=2, row=4)
    ser.mainloop()









#=========================================== CALCULATE =======================================

def calculater():

    cal = tk.Tk()
    cal.geometry("500x500")
    calw = tk.Label(master = cal, text = "Reading Score Menu")
    calw.grid(column=2, row=0)
    calo = tk.Label(master = cal, text = "Enter you text in the box below : ")
    calo.grid(column=2, row=2)
    cals= tk.Entry(master =cal)
    cals.grid(column=2, row=3)
    calser = tk.button(master = cal, text = "search reading age", command = r_age)
    cale = tk.Label(master = cal, text = "Your Reading Age is : ")
    cale.grid(column=2, row=4)
    calr = tk.Label(master = cal, text = "")
    calr.grid(column=2, row=5)
    cal.mainloop()


def r_age():
    spaces = text.count(" ")
    apostrophe = text.count("'")
    fstop = text.count(".")
    comma = text.count(",")
    fbracket = text.count("(")
    bbracket = text.count(")")
    qmark = text.count("?")
    emark = text.count("!")
    smark = text.count('"')
    hyphen = text.count("-")
    colon = text.count(":")
    scolon = text.count(";")
    characters = len(text) - spaces - fstop - apostrophe - comma - fstop - fbracket - bbracket - qmark - emark - smark - hyphen - colon - scolon
    words = text.count(" ") + 1
    sentences = text.count(".")

    readingage = math.ceil(4.71 * (characters/words) + 0.5 * (words/sentences) - 21.43)

    if readingage < 0:
        readingage = 0

    return readingage



#=========================================== MAINSCREEN =======================================

def mscreen():
    ms = tk.Tk()
    ms.geometry("500x500")
    Mains = tk.Label(master = ms, text = "Main Screen")
    Mains.grid(column=2, row=0)
    msearch = tk.Button(master =ms, text = "Search for Reading Age")
    msearch.grid(column=2, row=2)
    mcal = tk.Button(master =ms, text = "Calculate Reading Age", command = calculater)
    mcal.grid(column=2, row=3)
    mscreen.mainloop()


#============================================ LOGIN ===========================================

def login():
    password_ent1 = password_ent.get()
    name_ent1 = name_ent.get()
    global userName
    global Password
    if userName == name_ent1 and Password == password_ent1:
        mscreen()
    else:
        loginlabel.configure(text = 'Username or Password incorrect.')

#======================================== TK FOR LOGIN =========================================

loginscreen = tk.Tk()

loginscreen.geometry('500x500')

username = tk.Label(text = "Username:")

name_ent = tk.Entry()

username.grid(column=2, row=2)

name_ent.grid(column=4, row=2)

pword = tk.Label(text = "Password:")

password_ent = tk.Entry(show="*")

pword.grid(column=2, row =4)

password_ent.grid(column=4, row=4)

login = tk.Button(text = "Login", command = login)

login.grid(column=3, row=5)

loginlabel = tk.Label(text = "Please login to continue ...")

loginlabel.grid(column=4, row=5)

loginscreen.mainloop()