from unittest.mock import Mock
from unittest.mock import patch

from django.test import TestCase
from mailer.mailutils import NOT_SENT
from mailer.mailutils import send
from mailer.mailutils import SENT


class MailUtilsTest(TestCase):
    def setUp(self):
        self.subject = "Test Subject"
        self.content = "Test Content"
        self.sender = "sender@example.com"
        self.recipient = "recipient@example.com"

    def test_send_with_reply_to(self):
        with patch("mailer.mailutils.mail.get_connection") as mock_connection:
            mock_conn = Mock()
            mock_connection.return_value = mock_conn
            result = send(
                self.subject,
                self.content,
                self.sender,
                self.recipient,
                reply_to=["reply@example.com"],
            )
            self.assertEqual(result, SENT)

    def test_send_with_message_id(self):
        with patch("mailer.mailutils.mail.get_connection") as mock_connection:
            mock_conn = Mock()
            mock_connection.return_value = mock_conn
            result = send(
                self.subject,
                self.content,
                self.sender,
                self.recipient,
                message_id="<test@example.com>",
            )
            self.assertEqual(result, SENT)

    def test_send_exception_handling(self):
        with patch("mailer.mailutils.mail.get_connection") as mock_connection:
            mock_conn = Mock()
            mock_conn.send_messages.side_effect = Exception("Test exception")
            mock_connection.return_value = mock_conn
            with patch("builtins.print"):
                result = send(self.subject, self.content, self.sender, self.recipient)
            self.assertEqual(result, NOT_SENT)