# Paper list component
# File: components/paper_list.py
import streamlit as st


def render_paper_list(papers):
    """
    Display a list of papers: title, authors, truncated abstract, and link if available.
    """
    st.header("📄 Papers Found")
    if not papers:
        st.warning("No papers found. Try another query.")
        return

    for paper in papers:
        title = paper.get("title", "Untitled")
        authors = paper.get("authors", [])
        abstract = paper.get("abstract", "No abstract.")
        link = paper.get("url")

        with st.expander(title, expanded=False):
            st.markdown(f"**Authors:** {', '.join(authors)}")
            # Truncate abstract to 300 chars
            snippet = abstract if len(abstract) < 300 else abstract[:300] + "..."
            st.write(snippet)
            if link:
                st.markdown(f"[Read more]({link})")