"""Email the daily report via SMTP (Gmail app password). No-op if EMAIL_* is unconfigured,
so the pipeline never fails just because email isn't set up.
"""

from __future__ import annotations

import smtplib
import ssl
from email.message import EmailMessage
from pathlib import Path

from loguru import logger

from config.settings import get_settings


def send_daily(trade_date: str, pdf_path: Path | None, summary: str = "") -> bool:
    s = get_settings()
    if not (s.email_app_password and s.email_to and s.email_from):
        logger.info("email skipped (EMAIL_TO/FROM/APP_PASSWORD not set in .env)")
        return False

    msg = EmailMessage()
    msg["Subject"] = f"Trading Agent — Daily Report {trade_date}"
    msg["From"] = s.email_from
    msg["To"] = s.email_to
    msg.set_content(summary or f"Daily research + execution report for {trade_date} attached.")

    if pdf_path and Path(pdf_path).exists():
        msg.add_attachment(
            Path(pdf_path).read_bytes(),
            maintype="application",
            subtype="pdf",
            filename=Path(pdf_path).name,
        )

    try:
        ctx = ssl.create_default_context()
        with smtplib.SMTP(s.smtp_host, s.smtp_port, timeout=30) as server:
            server.starttls(context=ctx)
            server.login(s.email_from, s.email_app_password)
            server.send_message(msg)
        logger.info("emailed daily report to {}", s.email_to)
        return True
    except Exception as e:
        logger.warning("email failed: {}", e)
        return False