# Procyon — email sending via SMTP. Configurable; safe when unconfigured.

import smtplib
import ssl
from email.message import EmailMessage

import db


def configured():
    return bool(db.get_setting('smtp_user', '')) and bool(db.get_setting('smtp_pass', ''))


def send(subject, body, to_email, attachment_path=None):
    host = db.get_setting('smtp_host', 'smtp.mail.me.com')
    port = int(db.get_setting('smtp_port', '587'))
    user = db.get_setting('smtp_user', '')
    pw = db.get_setting('smtp_pass', '')
    from_email = db.get_setting('from_email', 'indianaholmes1@icloud.com')
    from_name = db.get_setting('from_name', 'Indiana Holmes')

    if not (user and pw):
        raise RuntimeError('SMTP not configured — add iCloud app-specific password in Settings')

    msg = EmailMessage()
    msg['Subject'] = subject
    msg['From'] = f'{from_name} <{from_email}>'
    msg['To'] = to_email
    msg['Reply-To'] = from_email
    msg.set_content(body)

    if attachment_path:
        import os
        with open(attachment_path, 'rb') as f:
            data = f.read()
        msg.add_attachment(data, maintype='application', subtype='pdf',
                           filename=os.path.basename(attachment_path))

    ctx = ssl.create_default_context()
    with smtplib.SMTP(host, port, timeout=30) as s:
        s.starttls(context=ctx)
        s.login(user, pw)
        s.send_message(msg)
    return True


def auto_send(app_id):
    """Auto-approve + send a prepared application to its scraped contact email — no human
    gate. Guarded: only sends when a contact email was scraped, SMTP is configured, and the
    self-audit passes (no fabrication/garbage). Returns (sent: bool, message: str)."""
    import audit
    app = db.get_application(app_id)
    if not app:
        return False, 'app not found'
    job = db.get_job(app['job_id'])
    to_email = (job.get('contact_email') or '').strip() if job else ''
    if not to_email:
        return False, 'no contact email scraped'
    if not configured():
        return False, 'SMTP not configured'
    checks = db.get_audit(app_id)
    if not audit.all_pass(checks):
        return False, 'audit has FAIL items'
    try:
        send(app['email_subject'], app['email_body'], to_email,
             attachment_path=app.get('tailored_pdf') or app.get('resume_path'))
        db.update_application(app_id, status='sent', notes=f'auto-sent to {to_email}')
        db.set_job_status(app['job_id'], 'sent')
        return True, f'sent to {to_email}'
    except Exception as e:
        return False, f'send error: {e}'