Add dockerfile and fix readme

main.py

@@ -0,0 +1,55 @@
+import os
+import re
+import json
+import requests
+from bs4 import BeautifulSoup
+from mail_sender import EmailSender
+from utils import format_product_table
+
+def fetch_product_info(urls):
+    product_info = []
+
+    for url in urls:
+        response = requests.get(url)
+        if response.status_code == 200:
+            soup = BeautifulSoup(response.text, 'html.parser')
+            product_name = soup.find('h1', class_='keyfacts__title').text.strip()
+            current_price = soup.find('div', class_='m-price__price').text.strip()
+            original_price_element = soup.find('span', class_='m-price__rrp')
+            original_price = original_price_element.text.strip() if original_price_element else "-"
+            discount_element = soup.find('div', class_='m-price__label')
+            discount = int(re.findall(r'\d+', discount_element.text.strip())[0]) if discount_element else 0
+
+            product_info.append({
+                "name": product_name,
+                "price": current_price,
+                "discount": discount,
+                "originalPrice": original_price,
+                "url": url
+            })
+        else:
+            print(f"Failed to fetch URL: {url}")
+
+    return product_info
+
+
+def save_to_json(product_info, output_file):
+    with open(output_file, 'w') as f:
+        json.dump(product_info, f, indent=4)
+
+if __name__ == "__main__":
+    input_file = "urls.txt"
+    output_file = "product_info.json"
+
+    with open(input_file, 'r') as f:
+        urls = [line.strip() for line in f.readlines()]
+
+    product_info = fetch_product_info(urls)
+    print(format_product_table(product_info))
+    save_to_json(product_info, output_file)
+
+    products_on_sale = [product for product in product_info if product["discount"] > 0]
+
+    if len(products_on_sale) > 0:
+        sender = EmailSender(os.environ["SCRAPER_SMTP_USER"], os.environ["SCRAPER_SMTP_PASSWORD"])
+        sender.send_email(os.environ["SCRAPER_TO_MAIL"], products_on_sale)