from tkinter import *

root = Tk()

s= Label( text="Our Ice Cream Shop",bg = 'Purple')
s.pack(side = 'top')



def quit(event=None):
    root.destroy()

root.bind('<Escape>', quit)


button = Button(text="Exit", command=quit)
button.pack(side='bottom', fill='both')

# -----------------------------------------------------------------------------
# Create a frame within the main window.
# -----------------------------------------------------------------------------

frame = Frame(root)
frame.pack(side='top')
input_name = Label(frame, text="Please input your Name")
input_name.pack(side='top')

nameVar = StringVar()
nameVar.set('Scene')
name = Entry(frame,textvariable=nameVar, font='Verdana')
name.pack()


# Create a text box that explains the calculation.
invitation = Label(frame, text="Please order below")
invitation.pack(side='top')

label = Label( text=" Choose Flavor type by scrolling up or down", bg='lightblue')
label.pack()
lb = Listbox(height =4)
lb.pack(side = 'top')
lb.insert(END,"Cookie Dough   $2.50")
lb.insert(END,"Mint                    $1.97")
lb.insert(END,"Strawberry          $1.99")
lb.insert(END,"Chocolate          $2.25")
lb.insert(END,"Rocky Road       $2.50")
lb.insert(END,"Turtle                  $2.65")
lb.insert(END,"Vanilla                $1.75")

number = Label(frame,text = 'Please input the Number of Ice-Creams', bg ='lightblue')
number.pack(side = 'bottom')

price = 0.0



# Define an input variable and add an entry box so the user can change its value.
number = StringVar()
number.set('1')
number_entry = Entry(frame, width=8, textvariable=number)
number_entry.pack(side='left')

# Define an output variable and a function to compute its value.
total_price = StringVar()

def calculate_price():


    global number, total_price,price

    items = lb.curselection()
    for item in items:
        if(item==0):
            price = 2.50
        elif(item ==1):
            price = 1.97
        elif(item ==2):
            price = 1.99

    # Get the string value of the x StringVar and convert it to a float.
    num_value = float(number.get())
    print(items)
    # Compute the floating point value of y.
    price_value = num_value * float(price)

    # Convert this to a formatted string, and store it in the y StringVar.
    total_price.set('%.2f' % price_value)
    print(total_price.get())
def write_to_file(event =Button):
    user_name = nameVar.get()
    the_file = open("Reciept.txt", "w")
    the_file.write("First Name: " + user_name + "\n")
    the_file.write("Total:" + total_price.get())
    the_file.close()



# Create a button to perform the calculation and pack it into the frame.
compute = Button(frame, text=' BUY ', command= calculate_price)
compute.pack(side='bottom')
#compute.bind('<button>',calculate_price)
# Create a text box that displays the value of the y StringVar.
reciept = Button(frame, text=' Reciept ', command= write_to_file)
reciept.pack(side='bottom')


y_label = Label(frame, textvariable=total_price, width=8)
y_label.pack(side='bottom')

# -----------------------------------------------------------------------------
# Activate the window.
# -----------------------------------------------------------------------------
root.mainloop()