from tkinter import *
from bs4 import BeautifulSoup
import urllib.request
import json
import sys

class Interface:

    def __init__(self):
        self.data = load_jsonfile('chaine.json')
        self.fenetre = Tk()
        self.fenetre.title("recherche de chaine")
        self.value = StringVar()
        self.label = Label(self.fenetre, text="entrer numero de chaine")
        self.entree = Entry(self.fenetre, textvariable=self.value, width=30)
        self.frame = Frame(self.fenetre)
        self.label2 = Label(self.fenetre, text="")
        self.bouton_update_base = Button(
        self.fenetre, text="update la base de chaine", command=self.click_update)
        self.bouton = Button(self.frame, text="OK", command=self.click)
        self.reset = Button(self.frame, text="reset", command=self.click_reset)
        self.label.pack()
        self.entree.pack()
        self.entree.focus_set()
        self.frame.pack()
        self.bouton.pack(side=LEFT)
        self.reset.pack(side=RIGHT)
        self.label2.pack()
        self.bouton_update_base.pack()
        self.fenetre.bind("<Key-Return>", self.enter)
        self.fenetre.bind("<Key-Escape>", self.eventreset)
        

    def enter(self,evt):
        self.click()

    def eventreset(self,evt):
        self.click_reset()

    def mainloop(self):
        self.fenetre.mainloop()

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

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

    def click_update(self):
        parsechaine()
        self.data = load_jsonfile('chaine.json')
        self.label2["text"] += "update chaine done"+"\r"



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)





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

if arg == True:
    for i in sys.argv[1:]:
        interface.value.set(i)
        interface.click()
        interface.value.set("")

interface.mainloop()