from __future__ import annotations

from email.message import EmailMessage
from typing import Any, cast

import pytest

from server.services import contact as contact_service  # noqa: E402  pylint: disable=wrong-import-position


@pytest.fixture
def patched_settings(monkeypatch):
    original = contact_service.settings.SMTP_SETTINGS.copy()
    patched = original.copy()
    monkeypatch.setattr(contact_service.settings, "SMTP_SETTINGS", patched)
    return patched


def test_send_notification_returns_false_when_unconfigured(monkeypatch, patched_settings):
    patched_settings.update({"host": None, "recipients": []})

    # Ensure we do not accidentally open a socket if called
    monkeypatch.setattr(contact_service.smtplib, "SMTP", pytest.fail)

    submission = contact_service.ContactSubmission(
        name="Test",
        email="test@example.com",
        company=None,
        message="Hello",
        timeline=None,
    )

    assert contact_service.send_notification(submission) is False


def test_send_notification_sends_email(monkeypatch, patched_settings):
    patched_settings.update(
        {
            "host": "smtp.example.com",
            "port": 2525,
            "sender": "sender@example.com",
            "username": "user",
            "password": "secret",
            "use_tls": True,
            "recipients": ["owner@example.com"],
        }
    )

    smtp_calls: dict[str, Any] = {}

    class DummySMTP:
        def __init__(self, host, port, timeout=None):
            smtp_calls["init"] = (host, port, timeout)

        def __enter__(self):
            return self

        def __exit__(self, exc_type, exc, tb):
            return False

        def starttls(self):
            smtp_calls["starttls"] = True

        def login(self, username, password):
            smtp_calls["login"] = (username, password)

        def send_message(self, message):
            smtp_calls["message"] = message

    monkeypatch.setattr(contact_service.smtplib, "SMTP", DummySMTP)

    submission = contact_service.ContactSubmission(
        name="Alice",
        email="alice@example.com",
        company="Example Co",
        message="Hello there",
        timeline="Soon",
    )

    assert contact_service.send_notification(submission) is True

    assert smtp_calls["init"] == (
        patched_settings["host"],
        patched_settings["port"],
        15,
    )
    assert smtp_calls["starttls"] is True
    assert smtp_calls["login"] == (
        patched_settings["username"], patched_settings["password"])

    message = cast(EmailMessage, smtp_calls["message"])
    assert message["Subject"] == "Neue Kontaktanfrage von Alice"
    assert message["To"] == "owner@example.com"
    assert "Hello there" in message.get_content()