"""Email service. Sends via SMTP relay (Brevo); falls back to console log in dev."""
import smtplib
from email.message import EmailMessage
from flask import current_app


def send_email(to_addr: str, subject: str, body: str) -> bool:
    cfg = current_app.config
    server = cfg.get("MAIL_SERVER")

    # Dev fallback: no SMTP configured -> log to console.
    if not server:
        current_app.logger.info(
            "[DEV EMAIL] to=%s subject=%s\n%s", to_addr, subject, body
        )
        return True

    msg = EmailMessage()
    msg["From"] = f"{cfg.get('MAIL_FROM_NAME')} <{cfg.get('MAIL_FROM')}>"
    msg["To"] = to_addr
    msg["Subject"] = subject
    msg.set_content(body)

    try:
        with smtplib.SMTP(server, cfg.get("MAIL_PORT", 587), timeout=15) as s:
            if cfg.get("MAIL_USE_TLS"):
                s.starttls()
            if cfg.get("MAIL_USERNAME"):
                s.login(cfg.get("MAIL_USERNAME"), cfg.get("MAIL_PASSWORD"))
            s.send_message(msg)
        return True
    except Exception as exc:  # noqa: BLE001
        current_app.logger.error("Email send failed: %s", exc)
        return False