"""Reports tab: nightly research notes, committee memo, and PDFs per trade date."""

from __future__ import annotations

import streamlit as st

from web.views.common import S


def render() -> None:
    rdir = S.reports_dir
    rdates = (
        sorted((p.name for p in rdir.iterdir() if p.is_dir()), reverse=True)
        if rdir.exists() else []
    )
    if not rdates:
        st.info("No reports yet — generated during the nightly run (state/reports/).")
        return
    rdate = st.selectbox("Report date", rdates, key="rdate")
    ddir = rdir / rdate
    # daily.md first, then each agent
    mds = sorted(ddir.glob("*.md"), key=lambda p: (p.name != "daily.md", p.name))
    for md in mds:
        st.markdown(md.read_text())
        pdf = md.with_suffix(".pdf")
        if pdf.exists():
            st.download_button(
                f"⬇ Download {pdf.name}", pdf.read_bytes(), file_name=pdf.name,
                mime="application/pdf", key=f"dl_{md.stem}",
            )
        for png in sorted(ddir.glob(f"{md.stem}_*.png")):
            st.image(str(png))
        st.divider()