"""Tests for email credential delivery."""

import pytest

from dagster import build_op_context

from simpl_open_credential_delivery.ops.send_credentials_email import (
    send_credentials_email,
)
from simpl_open_credential_delivery.services.email_service import (
    EmailDeliveryService,
)


class FakeSMTP:
    def __init__(self, host, port, timeout=None):
        self.host = host
        self.port = port
        self.timeout = timeout
        self.started_tls = False
        self.logged_in = False
        self.sent_messages = []

    def __enter__(self):
        return self

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

    def starttls(self):
        self.started_tls = True

    def login(self, username, password):
        self.logged_in = True

    def send_message(self, message):
        self.sent_messages.append(message)


def test_send_credentials_email_success(monkeypatch, op_context):
    fake_smtp = FakeSMTP("smtp.example.local", 587)
    monkeypatch.setenv("SMTP_HOST", "smtp.example.local")
    monkeypatch.setenv("SMTP_PORT", "587")
    monkeypatch.setenv("SMTP_FROM_ADDRESS", "no-reply@example.local")
    monkeypatch.setenv("SMTP_USE_TLS", "true")
    monkeypatch.setenv("EMAIL_SUBJECT_TEMPLATE", "Subject {repository_identifier}")
    monkeypatch.setenv("EMAIL_BODY_TEMPLATE", "Hello {consumer_email} {access_token}")
    monkeypatch.setattr("smtplib.SMTP", lambda host, port, timeout=None: fake_smtp)

    result = send_credentials_email(
        op_context,
        {
            "repository_identifier": "simpl-open/platform-automation",
            "consumer_email": "consumer@example.local",
            "access_level": "read-only",
            "username": "application-consumer",
            "access_token": "token-123",
            "repository_access_url": "https://gitea.example.local/simpl-open/platform-automation",
        },
    )

    assert result["email_delivery_status"] == "SENT"
    assert result["email_message_id"] == ""
    assert fake_smtp.started_tls is True
    assert fake_smtp.sent_messages


def test_email_delivery_service_requires_sender(monkeypatch):
    monkeypatch.setenv("SMTP_HOST", "smtp.example.local")
    monkeypatch.setenv("SMTP_PORT", "587")
    monkeypatch.delenv("SMTP_FROM_ADDRESS", raising=False)

    with pytest.raises(Exception, match="SMTP_FROM_ADDRESS"):
        EmailDeliveryService.from_environment()