#!/usr/bin/env python3
"""
Send a test email through the EmailService to verify SMTP configuration.

Run from the backend directory:
    cd backend && python ../scripts/test_email.py [recipient]

Without SMTP credentials in backend/.env this runs in SIMULATION mode (the
message is logged, nothing is delivered). With credentials set it performs a
real send. Note: EMAIL_OVERRIDE_TO still force-routes the recipient.
"""
import sys
import logging
from pathlib import Path

# Add backend to path (same pattern as ingest.py)
sys.path.insert(0, str(Path(__file__).parent.parent / "backend"))

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s | %(levelname)-8s | %(message)s",
)

from app.config import settings  # noqa: E402
from app.services.email_service import get_email_service  # noqa: E402

recipient = sys.argv[1] if len(sys.argv) > 1 else (settings.email_override_to or settings.smtp_user)

print("-" * 62)
print(f"SMTP host   : {settings.smtp_host}:{settings.smtp_port}")
print(f"SMTP user   : {settings.smtp_user or '(empty)'}")
print(f"Mode        : {'REAL SEND' if settings.smtp_configured else 'SIMULATION - set SMTP_USER/SMTP_PASSWORD in backend/.env'}")
print(f"Override to : {settings.email_override_to or '(none - real recipient is used)'}")
print("-" * 62)

result = get_email_service().send(
    to=recipient,
    subject="Negoptim AI - SMTP test",
    body=(
        "Hello,\n\n"
        "This is a test email from the Negoptim AI backend confirming the "
        "SMTP configuration works end-to-end.\n\n"
        "- Negoptim AI"
    ),
)

if result.sent and result.simulated:
    print("[OK] Pipeline works - but SIMULATION only, no real email was delivered.")
elif result.sent:
    print(f"[OK] Real email delivered to {result.to} - check the inbox (and Spam folder).")
else:
    print(f"[FAIL] {result.error}")
    sys.exit(1)