feat: Ask for product's URL

- validate price to compare with (Day 47)

Author: a092devs

README.md

@@ -74,4 +74,5 @@
 - CSS 3
 - BeautifulSoup
 - Web Scraping
-- Selenium WebDriver
+- Selenium WebDriver
+- Regular Expressions (Regex)

day047/main.py

@@ -1,3 +1,4 @@
+import re
 import requests
 import smtplib
 from bs4 import BeautifulSoup
@@ -10,7 +11,16 @@
 FROM_PASSWORD = environ.get("FROM_PASSWORD")
 TO_EMAIL = environ.get("TO_EMAIL")
 
-URL = "https://www.amazon.in/dp/B09RHCYZ82"
+# Define a regular expression pattern for Amazon product URLs
+amazon_url_pattern = r"https?://(?:www\.)?amazon\.(?:com|ca|co\.uk|de|fr|it|es|co\.jp|com\.au|com\.mx|nl|com\.br|ae|in)/(?:[\w-]+/)?(?:dp|gp/product)/(?:\w{10}|\w{13})"
+
+# Keep asking for a valid Amazon product URL from the user
+while True:
+    URL = input("Please provide the URL of the product on Amazon:\n")
+    if re.match(amazon_url_pattern, URL):
+        break
+    else:
+        print("Invalid Amazon product URL. Please try again.")
 
 http_headers = {
     "Accept-Language": "en-US,en;q=0.9",
@@ -20,15 +30,28 @@
 response = requests.get(URL, headers=http_headers)
 soup = BeautifulSoup(response.text, 'html.parser')
 
-price = float(soup.find(name="span", class_="a-offscreen").getText()[1:])
+price_str = soup.find(name="span", class_="a-offscreen").getText().replace(",", "")
+if price_match := re.search(r"([\d,]+(?:\.\d{1,2})?)", price_str):
+    price = float(price_match[1].replace(",", ""))
+else:
+    print("Could not extract price information. Exiting.")
+    exit()
+
 product_name = " ".join(soup.find(
     name="span", class_="a-size-large product-title-word-break").getText().split())
 
-if price < 400.00:
+user_price_str = input("What amount do you want to compare the product with?\n")
+if user_price_match := re.search(r"([\d,]+(?:\.\d{1,2})?)", user_pri ce_str):
+    user_price = float(user_price_match[1].replace(",", ""))
+else:
+    print("Could not extract user price information. Exiting.")
+    exit()
+
+if price < user_price:
     with smtplib.SMTP("smtp.mail.yahoo.com", 587) as connection:
         connection.starttls()
         connection.login(FROM_EMAIL, FROM_PASSWORD)
         connection.sendmail(from_addr=FROM_EMAIL,
                             to_addrs=TO_EMAIL,
-                            msg=f"Subject: Price Drop Alert!\n\n{product_name} is now available in ₹{price}\n\nVisit: {URL}".encode('utf-8')
+                            msg=f"Subject: Price Drop Alert!\n\n{product_name} is now available for ₹{price}\n\nVisit: {URL}".encode('utf-8')
                             )

day048/main.py

@@ -1,5 +1,5 @@
 from selenium import webdriver
-from selenium.webdriver.chrome.service import Service
+from selenium.webdriver.edge.service import Service
 from selenium.webdriver.common.by import By
 import time
 
@@ -23,7 +23,6 @@
     7: "Time machine",
 }
 
-
 def cookie_clicker():
     check = time.time() + 5
     while True: