#!/usr/bin/env python
# -*- coding: utf-8 -*-
from tkinter import *   
from bs4 import BeautifulSoup
import urllib.request
import json
import sys

def click ():
    print (value.get())
    try:
        label2["text"]+=data[value.get()]+"\r"
        print(data[value.get()])
    except KeyError:
        print ("numero de chaine inconnue")
        label2["text"]+="numero de chaine inconnue"+"\r"
    value.set("")        

def click_reset ():
    print ("exit")
    fenetre.quit
    label2["text"]=""
    fenetre.mainloop



def load_jsonfile(file):
    with open(file, 'r', encoding='utf-8') as f:
        return json.load(f)    

def RepresentsInt(s):
    try: 
        int(s)
        return True
    except ValueError:
        return False
    except TypeError:
        return False
def parsechaine():
    URL='https://fr.wikipedia.org/wiki/Liste_des_cha%C3%AEnes_de_Canal'
    liste_chaine={} 
    response = urllib.request.urlopen(URL)
    html = response.read()
    parse=BeautifulSoup(html,"html.parser")
    for item in parse.find_all('table'):
        if (item.get("class") == ['wikitable'] or item.get("class") == ['wikitable', 'sortable'] ):
            for tr in item.find_all('tr'):
            
                firstTD=tr.find()
                num=firstTD.string
                if RepresentsInt(num):
                    #print (num)              
                    if RepresentsInt(firstTD.find_next().string):
                       #print (firstTD.find_next().find_next().string)
                       liste_chaine[num]=firstTD.find_next().find_next().string
                    else:
                        #print (firstTD.find_next().string)
                        liste_chaine[num]=firstTD.find_next().string
    print(json.dumps(liste_chaine, indent=4))
    with open('chaine.json', 'w', encoding='utf-8') as f:
        json.dump(liste_chaine, f, indent=4)
    data=load_jsonfile('chaine.json')
    label2["text"]+="update chaine done"+"\r"

def enter(evt):
    click()

def eventreset(evt):
    click_reset()



data=load_jsonfile('chaine.json')
fenetre = Tk()
fenetre.title("recherche de chaine")
value = StringVar()

if(len(sys.argv)>1):
    arg=True
else:
    value.set("")
    arg=False

label=Label(fenetre,text="entrer numero de chaine")
entree = Entry(fenetre, textvariable=value, width=30)
frame =Frame(fenetre)
label2=Label(fenetre, text="")
bouton_update_base= Button(fenetre,text="update la base de chaine",command=parsechaine)
bouton=Button(frame, text="OK", command=click)
reset=Button(frame, text="reset",command=click_reset)

label.pack()
entree.pack()
entree.focus_set()
frame.pack()
bouton.pack(side = LEFT)
reset.pack(side = RIGHT)
label2.pack()
bouton_update_base.pack()
fenetre.bind("<Key-Return>",enter)
fenetre.bind("<Key-Escape>",eventreset)
if (arg==True):
    for i in sys.argv[1:]:
        value.set(i)
        click()
        value.set("")

fenetre.mainloop()