Update app2.py

app2.py

@@ -1,21 +1,27 @@
 import asyncio
 import csv
-import logging
-import os
-from typing import List, Tuple
-
-import aiohttp
-import datetime
 import hashlib
+import os
+from typing import List, Tuple, Dict, Any, Optional
 
 import feedparser
 import gradio as gr
 from huggingface_hub import InferenceClient
 from sqlalchemy import create_engine, Column, Integer, String, Text, DateTime
-from sqlalchemy.orm import declarative_base, sessionmaker
 from sqlalchemy.exc import SQLAlchemyError
-import validators
-from bs4 import BeautifulSoup
+from sqlalchemy.orm import declarative_base, sessionmaker
+from urllib.parse import urljoin
+
+Base = declarative_base()
+
+class Article(Base):
+    __tablename__ = 'articles'
+    id = Column(Integer, primary_key=True)
+    url = Column('url', String(2048), nullable=False, unique=True)  # Increased URL length limit
+    title = Column('title', String(255))
+    content = Column('content', Text())
+    hash_value = Column('hash', String(32))
+    timestamp = Column('timestamp', DateTime(), default=datetime.datetime.utcnow)
 
 # Configure logging
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
@@ -33,20 +39,6 @@ url_monitoring_intervals = {}
 change_counts = {}
 history = []
 
-# Database setup
-Base = declarative_base()
-
-
-class Article(Base):
-    __tablename__ = 'articles'
-    id = Column(Integer, primary_key=True)
-    url = Column(String(255), nullable=False)
-    title = Column(String(255))
-    content = Column(Text)
-    hash = Column(String(32))
-    timestamp = Column(DateTime, default=datetime.datetime.utcnow)
-
-
 async def create_db_engine(db_url):
     try:
         engine = create_engine(db_url)