from Eljur.auth import Authorization
from scraper import scrape
from env_init import LOGIN, PASSWORD, DOMAIN, TG_ID, send_photo, send_document
import logging
from time import sleep
from random import randint
from os import mkdir
from difflib import HtmlDiff
from bs4 import BeautifulSoup


def get_difference(old, new):
    old = old.split("\n")
    new = new.split("\n")
    difference = HtmlDiff(wrapcolumn=81)

    try:
        html_file = open("data/difference.html", "w")
        html_file.truncate(0)
        ans = difference.make_file(fromlines=old, tolines=new, fromdesc="Было", todesc="Стало")
        html_file.write(ans)
        html_file.close
        logging.debug("data/difference.html updated")
    except:
        logging.critical(f"cant update data/difference.html: {Exception}")


def update_html(val=""):
    try:
        html_file = open("data/table.html", "w")
        html_file.truncate(0)
        html_file.write(val)
        html_file.close
        logging.debug("data/table.html updated")
    except FileNotFoundError:
        mkdir("data")
        logging.info(f"cant update data/table.html: {Exception}")
        logging.info("retry")
        update_html(val=val)
    except:
        logging.critical(f"cant update data/table.html: {Exception}")
        exit(1) 


def get_html():
    val = ""
    try:
        with open('data/table.html') as html_file:
            val = html_file.read()
        logging.debug("data/table.html got")
    except Exception as error:
        logging.error(f"cant read data/table.html: {str(error)}")
    return val


def verify_data():
    authorisation = Authorization()

    data = {
    "username": LOGIN,
    "password": PASSWORD,
    }
    subdomain = DOMAIN
    
    answer = authorisation.login(subdomain, data)
    if "session" not in answer:
        print(answer)
        logging.critical("can`t log in")
        logging.error(answer)
        exit(1)
    elif answer['answer']['user']['username'] != LOGIN: # type: ignore
        print(answer)
        logging.critical("data verified. Wrong LOGIN!")
        logging.error(f"Your login is {answer['answer']['user']['username']}! Update env") # type: ignore
        exit(255)
    logging.info(f'logged in as {LOGIN}')

 

def run():
    global new_table, old_table
    new_table = scrape()
    old_table = get_html()
    old_last_block = ""

    if old_table != "":
        old_last_block = old_table[old_table.find("""<h1 class="page-title">Объявления</h1>"""):old_table.find("""<div class="board-item__footer">""")]

    if new_table != " ":
#        new_table = new_table[new_table.find("""<h1 class="page-title">Объявления</h1>"""):new_table.find("""<div class="board-item__footer">""")]
        new_table = new_table[new_table.find("""<h1 class="page-title">Объявления</h1>"""):new_table.find("""<span class="control-label lgray">""")]


        if old_table != new_table and new_table != " ":
            new_last_block = new_table[new_table.find("""<h1 class="page-title">Объявления</h1>"""):new_table.find("""<div class="board-item__footer">""")]
            
            update_html(new_table)
            new_table_soup = BeautifulSoup(new_table, "lxml")
            new_table_pretty = new_table_soup.prettify()
            old_table_soup = BeautifulSoup(old_table, "lxml")
            old_table_pretty = old_table_soup.prettify()
            get_difference(old_table_pretty, new_table_pretty)


            if old_last_block != new_last_block:
                send_photo("data/screenshot.png")
            else:
                send_photo("sad.png")
            
            send_document("data/difference.html")
            send_document("data/table.html")

            return
    logging.debug("same result. nothing to do")


if __name__ == "__main__":
    verify_data()
    logging.info("log in success")

    while True:
        run()
        interval = randint(300, 500)
        logging.debug(f"sleep: {interval}")
        sleep(interval)