raena-crawler-engine/hasaki_crawler_engine/hasaki_categories.py

import hashlib
import logging
import time
import psycopg2
import pandas as pd
from pyvirtualdisplay import Display

from playwright.sync_api import sync_playwright
from hasaki_db_writer import hasaki_db_writer
from Util import translate_text_to_english

###### Looger ######
logging.basicConfig(filename="/home/ubuntu/logs/hasaki_crawler.log",
                    filemode='a',
                    format='%(asctime)s,%(msecs)d %(name)s %(levelname)s: %(message)s',
                    datefmt="%Y-%m-%d %H:%M:%S",
                    level=logging.INFO)



class HasakiCategories:
    def __init__(self, config):
        try:
            logging.info("Initializing HasakiSubCategories")
            self.master_category = []
            self.config = config
            self.crawler_name = self.config.get("crawler_name")
            self.product_limit = int(self.config.get("product_per_category"))
            self.conn = psycopg2.connect(database=self.config.get('database'), user=self.config.get('db_user'),
                                         password=self.config.get('db_pass'), host=self.config.get('db_host'),
                                         port=self.config.get('db_port'))
            self.conn.autocommit = True
            self.cur = self.conn.cursor()
            self.cur.execute(f"""select id from {self.config.get('crawler_schema')}.{self.config.get('source_tab')} where source_name='Hasaki'""")
            try:
                self.rce_source_id = self.cur.fetchone()[0]
            except:
                logging.info("Source tab is empty. Please check. Exiting.....")
                exit(1)

            self.db_writer = hasaki_db_writer(config)

            self.display = Display(visible=0, size=(800, 600))
            self.display.start()
        except Exception as e:
            logging.info(e)

    def __del__(self):
        print("Closing connection.....")
        self.conn.close()


    def start_processing(self):

        self.crawl_and_track("HEALTH - BEAUTY", "https://hasaki.vn/danh-muc/suc-khoe-lam-dep-c3.html")

        df = pd.DataFrame(self.master_category, columns=['Index', 'Parent', 'Name', 'Link'])

        df = df.sort_values('Index')

        df = df.drop_duplicates(subset='Name', keep='first')

        self.process_category(df)

        self.display.stop()


    def process_category(self, category):

        for index, row in category.iterrows():
            data = {}

            data['parent_category_id'] = 0
            data['rce_source_id'] = self.rce_source_id
            data['rce_source_category_id'] = 0
            data['rce_source_status'] = 1
            data['category_name'] = str(row["Name"]).replace("'","")
            data['category_page_url'] = row["Link"]
            data['category_page_url_hash'] = hashlib.md5(data['category_page_url'].encode('utf-8')).hexdigest()
            data['category_parent_name'] = str(row["Parent"]).replace("'","")

            self.db_writer.rce_category(data)


    def crawl_and_track(self, parent, url_to_visit):
        self.master_category.append((0,"0", parent, url_to_visit))

        print(self.master_category)

        cats = self.crawl_categories(parent, url_to_visit)
        time.sleep(10)
        if cats:
            for cat in cats:
                self.master_category.append((1,)+(cat))
                print((1,)+(cat))

                sub_cats1 = self.crawl_categories(cat[1], cat[2])
                time.sleep(3)
                if sub_cats1:
                    for sub_cat1 in sub_cats1:
                        self.master_category.append((2,) + (sub_cat1))
                        print((2,) + (sub_cat1))

                        sub_cats2 = self.crawl_categories(sub_cat1[1], sub_cat1[2])
                        time.sleep(3)
                        if sub_cats2:
                            for sub_cat2 in sub_cats2:
                                self.master_category.append((3,) + (sub_cat2))
                                print((3,) + (sub_cat2))

                                sub_cats3 = self.crawl_categories(sub_cat2[1], sub_cat2[2])
                                time.sleep(3)
                                if sub_cats3:
                                    for sub_cat3 in sub_cats3:
                                        self.master_category.append((4,) + (sub_cat3))
                                        print((4,) + (sub_cat3))

                                        sub_cats4 = self.crawl_categories(sub_cat3[1], sub_cat3[2])
                                        time.sleep(3)
                                        if sub_cats4:
                                            for sub_cat4 in sub_cats4:
                                                self.master_category.append((4,) + (sub_cat4))
                                                print((5,) + (sub_cat4))

    def crawl_categories(self, parent, url_to_visit):

        with sync_playwright() as p:
            browser = p.chromium.launch(headless=True)
            # context = browser.new_context(
            #     viewport={"width": 375, "height": 667, "isMobile": True}
            # )
            page = browser.new_page()

            # Load the webpage
            page.goto(url_to_visit)
            # page.goto('https://hasaki.vn/danh-muc/my-pham-high-end-c1907.html')

            page.wait_for_load_state('load')

            container_element = page.query_selector('.block_colaps_sticky.width_common.collaps_sticky')

            if container_element:
                item_elements = container_element.query_selector_all('.item_fillter')
                content_elements = container_element.query_selector_all('.content_fillter')

                urls = []

                for item_element in item_elements:
                    text = item_element.query_selector('a').inner_text()
                    text = translate_text_to_english(text)
                    href = item_element.query_selector('a').get_attribute('href')
                    urls.append((parent, text, href))

                for content_element in content_elements:
                    text = content_element.query_selector('a').inner_text()
                    text = translate_text_to_english(text)
                    href = content_element.query_selector('a').get_attribute('href')
                    urls.append((parent, text, href))

                # removing previously collected data
                master_urls = [item[3] for item in self.master_category]
                filtered_data = [(parent, name, url) for parent, name, url in urls if url not in master_urls]

                return filtered_data

            browser.close()