b2bcenter-parser/main.py

import pathlib
import os
import time
import re
from typing import Self

from selenium.webdriver import Keys, ActionChains
from selenium.webdriver.common.by import By
from webdriver_manager.chrome import ChromeDriverManager
from selenium import webdriver
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import NoSuchElementException, TimeoutException
from excel_parser import ExcelParser
from storage import Storage

from telegram_logs import logger


class Parser:
    keyword = "Велесстрой"
    url = "https://www.b2b-center.ru/market"

    _driver: webdriver.Chrome
    _options: webdriver.ChromeOptions = webdriver.ChromeOptions()
    _service: webdriver.ChromeService

    def __init__(self):
        logger.info("Бот запущен")
        prefs = {"download.default_directory": str(pathlib.Path('./downloads').absolute())}

        self._options.add_experimental_option("prefs", prefs)
        # self._options.add_argument("--disable-extensions")
        # self._options.add_argument("--disable-gpu")
        # self._options.add_argument("--headless=new")
        self._options.add_argument("window-size=1920,1080")
        self._service = webdriver.ChromeService(executable_path=ChromeDriverManager().install())

        self.storage = Storage()
        self.storage.create_tables()

    def __enter__(self) -> Self:
        self._driver = webdriver.Chrome(service=self._service, options=self._options)
        return self

    def __exit__(self, exc_type, exc_val, exc_tb):
        logger.error("Бот остановлен. Причина: " + str(exc_val))
        print("Gracefully shutting down...")

        self._driver.close()

    def find_elem(self, by: str, value: str):
        try:
            return WebDriverWait(self._driver, 10).until(EC.presence_of_element_located((by, value)))
        except TimeoutException:
            raise NoSuchElementException("Element not found")

    def login(self):
        self._driver.get(self.url)

        time.sleep(3)
        # Open login modal
        element = self.find_elem(By.ID, "auth_ajax_modal_trigger")
        element.click()

        login_control = self.find_elem(By.ID, "login_control")
        password_control = self.find_elem(By.ID, "password_control")

        login_control.click()
        login_control.clear()
        login_control.send_keys("jde2015")

        password_control.click()
        password_control.clear()
        password_control.send_keys("Bel8#Ans3")
        time.sleep(5)
        password_control.send_keys(Keys.RETURN)

    def check_ltl(self, text):
        return len(re.findall(r"[Ll][Tt][Ll]", text)) != 0

    def search(self):
        time.sleep(5)
        self._driver.get(self.url + f'/?f_keyword={self.keyword}')
        time.sleep(10)
        table = self.find_elem(By.CSS_SELECTOR, ".search-results > tbody")
        links = table.find_elements(By.CSS_SELECTOR, "tr > td:nth-child(1) > a")

        links = [link.get_attribute("href") for link in links if
                 self.check_ltl(link.find_element(By.CSS_SELECTOR, 'div').text)]
        links = [link for link in links if link not in self.storage.get_links()]

        for link in links:
            logger.info("Обработка заявки: " + link)
            try:
                self.accept_documentation(link)
            except Exception as exc:
                logger.error("Не удалось обработать заявку. Подробности: " + str(exc))

    def parse(self, url: str = None) -> dict:
        fp = self.download_documentation()
        e_parser = ExcelParser(fp, url)
        price = e_parser.calculate()
        if not price:
            logger.error("Не удалось расcчитать цену, переходим далее")

        return price

    def accept_documentation(self, url: str):
        time.sleep(3)
        self._driver.get(url)

        # Скачать документацию
        try:
            download_documentation_button = self.find_elem(By.CSS_SELECTOR,
                                                           '#auction_info_td > table > tbody > tr:nth-child(4) table input[type=submit]')
            time.sleep(5)
            ActionChains(self._driver).scroll_to_element(download_documentation_button).scroll_by_amount(0,
                                                                                                         100).perform()
            download_documentation_button.click()

            price = self.parse(url)
            self.send_offer_link(price['price'], nds=price['vat'],
                                 delivery_time=price['transport_delivery_date'],
                                 delivery_range=price['max_days'])

        except NoSuchElementException:
            # logger.info("Отсутствует кнопка скачивания документации, переходим к документации")

            price = self.parse(url)
            self.send_offer_link(price['price'], nds=price['vat'],
                                 delivery_time=price['transport_delivery_date'],
                                 delivery_range=price['max_days'])

    def download_documentation(self) -> list[pathlib.Path]:
        try:
            all_files_1 = set(
                pathlib.Path('./downloads') / pathlib.Path(file) for tree in os.walk('./downloads') for file in tree[2])

            time.sleep(5)
            documentation_block = self.find_elem(By.CSS_SELECTOR, '#download_documentation')
            docs = documentation_block.find_elements(By.CSS_SELECTOR, 'a')
            for doc in docs:
                href = doc.get_attribute('href')
                if not href.endswith('.xlsx') and not href.endswith('.xls'):
                    continue
                self._driver.get(href)
                time.sleep(3)

            all_files_2 = set(
                pathlib.Path('./downloads') / pathlib.Path(file) for tree in os.walk('./downloads') for file in tree[2])

            fp = all_files_2 - all_files_1
            logger.debug(fp)

            return [file for file in fp]
        except Exception as exc:
            logger.info(f"Не удалось скачать документацию. Подробности: {type(exc)} {str(exc)}")
            raise KeyboardInterrupt()

    def send_offer_link(self, price: int, nds: int, delivery_range: str, delivery_time: str):
        try:
            logger.info(
                f"Предварительные данные по заявке: Цена: {price}, НДС: {nds}%, Доставка: {delivery_range} дн., Подача машины {delivery_time}")
            offer_link = self.find_elem(By.ID, "send_offer_link")
            ActionChains(self._driver).scroll_to_element(offer_link).scroll_by_amount(0, 100).perform()
            offer_link.click()

            price_id = self.find_elem(By.ID, 'price_id')
            price_id.send_keys(str(price))
            nds_elem = self.find_elem(By.CSS_SELECTOR, 'input[name="AUCTION_OFFER[price_vat]"]')

            if nds == 0:
                self.find_elem(By.ID, 'price_lot_no_tax').click()
            else:
                nds_elem.send_keys(str(nds))

            row_11 = self.find_elem(By.CSS_SELECTOR, "tr#row_id_11 > td:nth-child(2) > textarea")
            row_12 = self.find_elem(By.CSS_SELECTOR, "tr#row_id_12 > td:nth-child(2) > textarea")
            row_13 = self.find_elem(By.CSS_SELECTOR, "tr#row_id_13 > td:nth-child(2) > textarea")
            row_15 = self.find_elem(By.CSS_SELECTOR, "tr#row_id_15 > td:nth-child(2) >  input[type=submit]")

            row_11.send_keys(str(delivery_range) + " дней")
            row_12.send_keys(delivery_time)
            row_13.send_keys(
                "Дата подачи транспорта предварительная, согласовывается по звонку оператора ЖДЭ клиенту-отправителю")
            time.sleep(10)

            ActionChains(self._driver).scroll_to_element(row_15).scroll_by_amount(0, 100).perform()
            row_15.click()
            time.sleep(10)

            self.apply_offer()
            logger.success("Заявка успешно отправлена")
        except Exception as exc:
            logger.error(f"Не удалось отправить заявку. Ошибка: {type(exc)} : {str(exc)}")

    def apply_offer(self):
        btn = self.find_elem(By.CSS_SELECTOR, "form[name=AUCTION_OFFER] table.form-control_table button")
        btn.click()


if __name__ == "__main__":
    with Parser() as parser:
        parser.login()
        while True:
            parser.search()
            logger.info("Все LTL заявки обработаны, обновление через 60сек")
            time.sleep(60)