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import gradio as gr
import requests
from datetime import datetime, timezone
API_URL = "https://huggingface.co/api/daily_papers"
class PaperManager:
def __init__(self, papers_per_page=10):
self.papers_per_page = papers_per_page
self.cache = []
self.last_fetch_date = None
self.total_pages = 1
def fetch_papers(self):
"""
Fetch papers from the API if not already fetched today.
"""
today = datetime.now(timezone.utc).date()
if self.last_fetch_date == today and self.cache:
print("Using cached papers.")
return True
else:
try:
# Attempt to fetch all papers at once. Adjust 'limit' as per API's capability.
response = requests.get(f"{API_URL}?page=1&limit=1000")
response.raise_for_status()
data = response.json()
self.cache = sorted(data, key=lambda x: x.get('paper', {}).get('upvotes', 0), reverse=True)
self.last_fetch_date = today
self.total_pages = (len(self.cache) + self.papers_per_page - 1) // self.papers_per_page
print(f"Fetched {len(self.cache)} papers. Total pages: {self.total_pages}")
return True
except requests.RequestException as e:
print(f"Error fetching papers: {e}")
return False
def format_paper(self, paper):
"""
Format a single paper's information into HTML.
"""
title = paper.get('title', 'No title')
paper_id = paper.get('paper', {}).get('id', '')
url = f"https://huggingface.co/papers/{paper_id}" if paper_id else "#"
authors = ', '.join([author.get('name', 'Unknown') for author in paper.get('paper', {}).get('authors', [])])
upvotes = paper.get('paper', {}).get('upvotes', 0)
comments = paper.get('numComments', 0)
published_at = paper.get('publishedAt', datetime.now(timezone.utc).isoformat())
try:
published_time = datetime.fromisoformat(published_at.replace('Z', '+00:00'))
time_ago = (datetime.now(timezone.utc) - published_time).days
except ValueError:
time_ago = "Unknown"
return f"""<div style='border-bottom: 1px solid #eee; padding: 10px 0;'>
<a href='{url}' target='_blank' style='co
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