import tkinter as tk
from tkinter import messagebox
import json
from time import sleep
import requests

##use the source code as much as you like without removing this comment block
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##    _ __ ___ | |_ ______ _ _ __  _ __
##   | '_ ` _ \| __|_  / _` | '_ \| '_ \
##   | | | | | | |_ / / (_| | | | | |_) |
##   |_| |_| |_|\__/___\__, |_| |_| .__/
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##
##mutaz.shamaileh2005@gmail.com
def encode(message,pw):
    return "".join([chr(ord(char)+ord(pw[i%len(pw)])) for i,char in enumerate(message)])
def decode(message,pw):
    return "".join([chr(ord(char)-ord(pw[i%len(pw)])) for i,char in enumerate(message)])
ex=""
fails=0
root =tk.Tk()
name=""
room="1"
pw="gnp"
nameLabel=tk.Label(root,text ="name ")
roomLabel=tk.Label(root,text ="room ")
pwLabel=tk.Label(root,text ="password ")
namePrev=tk.Label(root,text=name)
roomPrev=tk.Label(root,text=room)
nameBox=tk.Entry(root)
roomBox=tk.Entry(root)
pwBox=tk.Entry(root,show="*" )
roomBox.insert(0,room)
pwBox.insert(0,pw)
messageList= tk.Listbox(root)
messageBox=tk.Entry(root)
def update_loop():
    global fails
    for mess in json.loads(requests.get(url="http://mtzgnp.pythonanywhere.com/get?room=%s" % room).text)[messageList.size()+fails:]:
        try:
            messageList.insert(tk.END,"%s : %s" % (mess["name"],decode(mess["message"],pw)))
        except:
            fails+=1
    root.after(2000,update_loop)
def send():
    if name =="":
        messagebox.showerror("error","please enter name")
        return 1
    elif messageBox.get() == "":
        return 0
    requests.get(url ="http://mtzgnp.pythonanywhere.com/post?room=%s&name=%s&message=%s" %(room,name,encode(messageBox.get(),pw)))
    messageBox.delete(0,tk.END)
def change():
    global name
    global room
    global pw
    if room !=roomBox.get() and roomBox.get() != "":
        room=roomBox.get()
        roomPrev["text"]=room
    if name != nameBox.get():
        name=nameBox.get()
        namePrev["text"]=name
    if pw  != pwBox.get():
            messageList.delete(0,tk.END)
            pw=pwBox.get()
changeButton=tk.Button(root,text="change",command=change)
sendButton=tk.Button(root,text="send",command=send)
nameLabel.grid(row=0)
nameBox.grid(row=0,column=1)
namePrev.grid(row=0,column=2)
roomLabel.grid(row=1)
roomBox.grid(row=1,column=1)
roomPrev.grid(row=1,column=2)
pwLabel.grid(row=2)
pwBox.grid(row=2,column=1)
changeButton.grid(row=2,column=2)
messageList.config(height=40,width=100)
messageBox.config(width=50)
messageList.grid(row=3,columnspan=7)
messageBox.grid(row=4,columnspan=7,rowspan=7)
sendButton.grid(row=4,column=5)
update_loop()
root.mainloop()