"""
Unit tests for commerce/tickets/email_receiver.py

Tests TicketEmailReceiver class for IMAP email processing.
"""
from unittest.mock import Mock, patch, MagicMock
import pytest


class TestTicketEmailReceiverInit:
    """Tests for TicketEmailReceiver initialization."""

    def test_class_exists(self):
        """Should have TicketEmailReceiver class."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        assert TicketEmailReceiver is not None

    def test_init_stores_email_address(self):
        """Should store email_address on initialization."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert receiver.email_address is mock_email_address

    def test_init_sets_connection_to_none(self):
        """Should initialize connection as None."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert receiver.connection is None


class TestTicketEmailReceiverPatterns:
    """Tests for ticket ID extraction patterns."""

    def test_has_ticket_id_patterns(self):
        """Should have TICKET_ID_PATTERNS class attribute."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        assert hasattr(TicketEmailReceiver, 'TICKET_ID_PATTERNS')
        assert isinstance(TicketEmailReceiver.TICKET_ID_PATTERNS, list)
        assert len(TicketEmailReceiver.TICKET_ID_PATTERNS) > 0

    def test_patterns_match_ticket_dash_format(self):
        """Should match ticket-123 format."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver
        import re

        test_string = "ticket-123"
        matched = False
        for pattern in TicketEmailReceiver.TICKET_ID_PATTERNS:
            if re.search(pattern, test_string):
                matched = True
                break
        assert matched

    def test_patterns_match_ticket_underscore_format(self):
        """Should match ticket_123 format."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver
        import re

        test_string = "ticket_456"
        matched = False
        for pattern in TicketEmailReceiver.TICKET_ID_PATTERNS:
            if re.search(pattern, test_string):
                matched = True
                break
        assert matched

    def test_patterns_match_subject_with_ticket_number(self):
        """Should match [Ticket #123] in subject."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver
        import re

        test_string = "[Ticket #789]"
        matched = False
        for pattern in TicketEmailReceiver.TICKET_ID_PATTERNS:
            if re.search(pattern, test_string):
                matched = True
                break
        assert matched


class TestTicketEmailReceiverIsConfigured:
    """Tests for is_configured method."""

    def test_returns_true_when_fully_configured(self):
        """Should return True when IMAP, SMTP configured and active."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.is_smtp_configured = True
        mock_email_address.is_active = True

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.is_configured()

        assert result is True

    def test_returns_false_when_imap_not_configured(self):
        """Should return False when IMAP not configured."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = False
        mock_email_address.is_smtp_configured = True
        mock_email_address.is_active = True

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.is_configured()

        assert result is False

    def test_returns_false_when_smtp_not_configured(self):
        """Should return False when SMTP not configured."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.is_smtp_configured = False
        mock_email_address.is_active = True

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.is_configured()

        assert result is False

    def test_returns_false_when_not_active(self):
        """Should return False when not active."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.is_smtp_configured = True
        mock_email_address.is_active = False

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.is_configured()

        assert result is False


class TestTicketEmailReceiverConnect:
    """Tests for connect method."""

    def test_returns_false_when_imap_not_configured(self):
        """Should return False when IMAP not configured."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = False
        mock_email_address.display_name = 'Test Email'

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is False

    @patch('imaplib.IMAP4_SSL')
    def test_connects_with_ssl(self, mock_imap_ssl):
        """Should use IMAP4_SSL when SSL is enabled."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_connection = Mock()
        mock_imap_ssl.return_value = mock_connection

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.imap_use_ssl = True
        mock_email_address.imap_host = 'imap.example.com'
        mock_email_address.imap_port = 993
        mock_email_address.imap_username = 'user@example.com'
        mock_email_address.imap_password = 'password'
        mock_email_address.display_name = 'Test Email'

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is True
        mock_imap_ssl.assert_called_once_with('imap.example.com', 993)
        mock_connection.login.assert_called_once_with('user@example.com', 'password')

    @patch('imaplib.IMAP4')
    def test_connects_without_ssl(self, mock_imap):
        """Should use IMAP4 when SSL is disabled."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_connection = Mock()
        mock_imap.return_value = mock_connection

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.imap_use_ssl = False
        mock_email_address.imap_host = 'imap.example.com'
        mock_email_address.imap_port = 143
        mock_email_address.imap_username = 'user@example.com'
        mock_email_address.imap_password = 'password'
        mock_email_address.display_name = 'Test Email'

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is True
        mock_imap.assert_called_once_with('imap.example.com', 143)

    @patch('imaplib.IMAP4_SSL')
    def test_returns_false_on_login_error(self, mock_imap_ssl):
        """Should return False on IMAP login error."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver
        import imaplib

        mock_connection = Mock()
        mock_connection.login.side_effect = imaplib.IMAP4.error("Login failed")
        mock_imap_ssl.return_value = mock_connection

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.imap_use_ssl = True
        mock_email_address.imap_host = 'imap.example.com'
        mock_email_address.imap_port = 993
        mock_email_address.imap_username = 'user@example.com'
        mock_email_address.imap_password = 'wrong'
        mock_email_address.display_name = 'Test Email'

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is False

    @patch('imaplib.IMAP4_SSL')
    def test_returns_false_on_connection_error(self, mock_imap_ssl):
        """Should return False on connection error."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_imap_ssl.side_effect = Exception("Connection refused")

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.imap_use_ssl = True
        mock_email_address.imap_host = 'imap.example.com'
        mock_email_address.imap_port = 993
        mock_email_address.display_name = 'Test Email'

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is False


class TestTicketEmailReceiverDisconnect:
    """Tests for disconnect method."""

    def test_disconnects_when_connection_exists(self):
        """Should logout and clear connection."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        mock_connection = Mock()
        receiver.connection = mock_connection

        receiver.disconnect()

        mock_connection.logout.assert_called_once()
        assert receiver.connection is None

    def test_does_nothing_when_no_connection(self):
        """Should not raise when no connection."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)
        receiver.connection = None

        # Should not raise
        receiver.disconnect()

        assert receiver.connection is None

    def test_handles_logout_exception(self):
        """Should handle exception during logout."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        mock_connection = Mock()
        mock_connection.logout.side_effect = Exception("Connection lost")
        receiver.connection = mock_connection

        # Should not raise
        receiver.disconnect()

        assert receiver.connection is None


class TestTicketEmailReceiverFetchAndProcess:
    """Tests for fetch_and_process_emails method."""

    def test_returns_zero_when_not_configured(self):
        """Should return 0 when not configured."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = False
        mock_email_address.is_smtp_configured = False
        mock_email_address.is_active = False

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.fetch_and_process_emails()

        assert result == 0

    @patch.object(__import__('smoothschedule.commerce.tickets.email_receiver', fromlist=['TicketEmailReceiver']).TicketEmailReceiver, 'connect')
    def test_returns_zero_when_connect_fails(self, mock_connect):
        """Should return 0 when connect fails."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_connect.return_value = False

        mock_email_address = Mock()
        mock_email_address.is_imap_configured = True
        mock_email_address.is_smtp_configured = True
        mock_email_address.is_active = True

        receiver = TicketEmailReceiver(mock_email_address)
        result = receiver.fetch_and_process_emails()

        assert result == 0


class TestTicketEmailReceiverExtractTicketId:
    """Tests for ticket ID extraction logic."""

    def test_extracts_ticket_id_from_patterns(self):
        """Should extract ticket ID using patterns."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver
        import re

        # Test with various formats
        test_cases = [
            ("ticket-123", "123"),
            ("ticket_456", "456"),
            ("[Ticket #789]", "789"),
            ("+ticket-100", "100"),
            ("reply-200", "200"),
        ]

        for test_string, expected_id in test_cases:
            for pattern in TicketEmailReceiver.TICKET_ID_PATTERNS:
                match = re.search(pattern, test_string)
                if match:
                    assert match.group(1) == expected_id
                    break


class TestTicketEmailReceiverContextManager:
    """Tests for TicketEmailReceiver used as a class."""

    def test_can_be_instantiated_with_mock(self):
        """Should be instantiable with mock email address."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        mock_email_address.display_name = "Test"
        mock_email_address.is_imap_configured = False

        receiver = TicketEmailReceiver(mock_email_address)

        assert receiver is not None
        assert receiver.email_address is mock_email_address


class TestTicketEmailReceiverUpdateError:
    """Tests for _update_email_address_error method."""

    def test_has_update_error_method(self):
        """Should have _update_email_address_error method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_update_email_address_error')


class TestTicketEmailReceiverExtractEmailData:
    """Tests for _extract_email_data method."""

    def test_has_extract_email_data_method(self):
        """Should have _extract_email_data method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_email_data')
        assert callable(receiver._extract_email_data)


class TestTicketEmailReceiverDecodeHeader:
    """Tests for _decode_header method."""

    def test_has_decode_header_method(self):
        """Should have _decode_header method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_decode_header')
        assert callable(receiver._decode_header)

    def test_decodes_simple_string(self):
        """Should return simple string as-is."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._decode_header("Simple Subject")

        assert result == "Simple Subject"


class TestTicketEmailReceiverExtractBody:
    """Tests for _extract_body method."""

    def test_has_extract_body_method(self):
        """Should have _extract_body method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_body')
        assert callable(receiver._extract_body)


class TestTicketEmailReceiverHtmlToText:
    """Tests for _html_to_text method."""

    def test_has_html_to_text_method(self):
        """Should have _html_to_text method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_html_to_text')
        assert callable(receiver._html_to_text)


class TestTicketEmailReceiverExtractReplyText:
    """Tests for _extract_reply_text method."""

    def test_has_extract_reply_text_method(self):
        """Should have _extract_reply_text method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_reply_text')
        assert callable(receiver._extract_reply_text)


class TestTicketEmailReceiverExtractTicketId:
    """Tests for _extract_ticket_id method."""

    def test_has_extract_ticket_id_method(self):
        """Should have _extract_ticket_id method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_ticket_id')
        assert callable(receiver._extract_ticket_id)


class TestTicketEmailReceiverFindMatchingTicket:
    """Tests for _find_matching_ticket method."""

    def test_has_find_matching_ticket_method(self):
        """Should have _find_matching_ticket method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_find_matching_ticket')
        assert callable(receiver._find_matching_ticket)


class TestTicketEmailReceiverFindUserByEmail:
    """Tests for _find_user_by_email method."""

    def test_has_find_user_by_email_method(self):
        """Should have _find_user_by_email method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_find_user_by_email')
        assert callable(receiver._find_user_by_email)


class TestTicketEmailReceiverDeleteEmail:
    """Tests for _delete_email method."""

    def test_has_delete_email_method(self):
        """Should have _delete_email method."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_delete_email')
        assert callable(receiver._delete_email)


class TestPlatformEmailReceiverClass:
    """Tests for PlatformEmailReceiver class."""

    def test_class_exists(self):
        """Should have PlatformEmailReceiver class."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        assert PlatformEmailReceiver is not None

    def test_init_stores_email_address(self):
        """Should store email address on init."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert receiver.email_address is mock_email_address

    def test_init_sets_connection_to_none(self):
        """Should initialize connection as None."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert receiver.connection is None

    def test_has_connect_method(self):
        """Should have connect method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, 'connect')
        assert callable(receiver.connect)

    def test_has_disconnect_method(self):
        """Should have disconnect method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, 'disconnect')
        assert callable(receiver.disconnect)

    def test_has_fetch_and_process_emails_method(self):
        """Should have fetch_and_process_emails method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, 'fetch_and_process_emails')
        assert callable(receiver.fetch_and_process_emails)

    def test_has_ticket_id_patterns(self):
        """Should have TICKET_ID_PATTERNS class attribute."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        assert hasattr(PlatformEmailReceiver, 'TICKET_ID_PATTERNS')
        assert isinstance(PlatformEmailReceiver.TICKET_ID_PATTERNS, list)
        assert len(PlatformEmailReceiver.TICKET_ID_PATTERNS) > 0


class TestPlatformEmailReceiverConnect:
    """Tests for PlatformEmailReceiver.connect method."""

    @patch('imaplib.IMAP4_SSL')
    def test_connects_with_ssl(self, mock_imap_ssl):
        """Should use IMAP4_SSL when SSL is enabled."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_connection = Mock()
        mock_imap_ssl.return_value = mock_connection

        mock_email_address = Mock()
        mock_email_address.get_imap_settings.return_value = {
            'host': 'imap.example.com',
            'port': 993,
            'username': 'user@example.com',
            'password': 'password',
            'use_ssl': True,
        }
        mock_email_address.display_name = 'Test Email'

        receiver = PlatformEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is True
        mock_imap_ssl.assert_called_once_with('imap.example.com', 993)
        mock_connection.login.assert_called_once_with('user@example.com', 'password')

    @patch('imaplib.IMAP4')
    def test_connects_without_ssl(self, mock_imap):
        """Should use IMAP4 when SSL is disabled."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_connection = Mock()
        mock_imap.return_value = mock_connection

        mock_email_address = Mock()
        mock_email_address.get_imap_settings.return_value = {
            'host': 'imap.example.com',
            'port': 143,
            'username': 'user@example.com',
            'password': 'password',
            'use_ssl': False,
        }
        mock_email_address.display_name = 'Test Email'

        receiver = PlatformEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is True
        mock_imap.assert_called_once_with('imap.example.com', 143)

    @patch('imaplib.IMAP4_SSL')
    def test_returns_false_on_login_error(self, mock_imap_ssl):
        """Should return False on IMAP login error."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver
        import imaplib

        mock_connection = Mock()
        mock_connection.login.side_effect = imaplib.IMAP4.error("Login failed")
        mock_imap_ssl.return_value = mock_connection

        mock_email_address = Mock()
        mock_email_address.get_imap_settings.return_value = {
            'host': 'imap.example.com',
            'port': 993,
            'username': 'user@example.com',
            'password': 'wrong',
            'use_ssl': True,
        }
        mock_email_address.display_name = 'Test Email'

        receiver = PlatformEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is False

    @patch('imaplib.IMAP4_SSL')
    def test_returns_false_on_connection_error(self, mock_imap_ssl):
        """Should return False on connection error."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_imap_ssl.side_effect = Exception("Connection refused")

        mock_email_address = Mock()
        mock_email_address.get_imap_settings.return_value = {
            'host': 'imap.example.com',
            'port': 993,
            'username': 'user@example.com',
            'password': 'password',
            'use_ssl': True,
        }
        mock_email_address.display_name = 'Test Email'

        receiver = PlatformEmailReceiver(mock_email_address)
        result = receiver.connect()

        assert result is False


class TestPlatformEmailReceiverDisconnect:
    """Tests for PlatformEmailReceiver.disconnect method."""

    def test_disconnects_when_connection_exists(self):
        """Should logout and clear connection."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        mock_connection = Mock()
        receiver.connection = mock_connection

        receiver.disconnect()

        mock_connection.logout.assert_called_once()
        assert receiver.connection is None

    def test_does_nothing_when_no_connection(self):
        """Should not raise when no connection."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)
        receiver.connection = None

        # Should not raise
        receiver.disconnect()

        assert receiver.connection is None

    def test_handles_logout_exception(self):
        """Should handle exception during logout."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        mock_connection = Mock()
        mock_connection.logout.side_effect = Exception("Connection lost")
        receiver.connection = mock_connection

        # Should not raise
        receiver.disconnect()

        assert receiver.connection is None


class TestPlatformEmailReceiverFetchAndProcess:
    """Tests for PlatformEmailReceiver.fetch_and_process_emails method."""

    def test_returns_zero_when_not_active(self):
        """Should return 0 when email address not active."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        mock_email_address.is_active = False

        receiver = PlatformEmailReceiver(mock_email_address)
        result = receiver.fetch_and_process_emails()

        assert result == 0


class TestPlatformEmailReceiverHelperMethods:
    """Tests for PlatformEmailReceiver helper methods."""

    def test_has_extract_email_data_method(self):
        """Should have _extract_email_data method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_email_data')
        assert callable(receiver._extract_email_data)

    def test_has_decode_header_method(self):
        """Should have _decode_header method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_decode_header')
        assert callable(receiver._decode_header)

    def test_decode_header_returns_empty_for_none(self):
        """Should return empty string for None/empty input."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert receiver._decode_header('') == ''
        assert receiver._decode_header(None) == ''

    def test_decode_header_simple_string(self):
        """Should return simple string as-is."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        result = receiver._decode_header("Simple Subject")

        assert result == "Simple Subject"

    def test_has_extract_body_method(self):
        """Should have _extract_body method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_body')
        assert callable(receiver._extract_body)

    def test_has_html_to_text_method(self):
        """Should have _html_to_text method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_html_to_text')
        assert callable(receiver._html_to_text)

    def test_html_to_text_removes_tags(self):
        """Should remove HTML tags."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        result = receiver._html_to_text('<p>Hello</p>')

        assert '<p>' not in result
        assert '</p>' not in result
        assert 'Hello' in result

    def test_has_extract_reply_text_method(self):
        """Should have _extract_reply_text method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_reply_text')
        assert callable(receiver._extract_reply_text)

    def test_extract_reply_text_empty(self):
        """Should return empty for empty input."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert receiver._extract_reply_text('') == ''
        assert receiver._extract_reply_text(None) == ''

    def test_has_extract_ticket_id_method(self):
        """Should have _extract_ticket_id method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_extract_ticket_id')
        assert callable(receiver._extract_ticket_id)

    def test_extract_ticket_id_from_address(self):
        """Should extract ticket ID from email address."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        result = receiver._extract_ticket_id('ticket-123@example.com', 'Re: Issue')

        assert result == '123'

    def test_extract_ticket_id_from_subject(self):
        """Should extract ticket ID from subject."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        result = receiver._extract_ticket_id('support@example.com', '[Ticket #456] Issue')

        assert result == '456'

    def test_has_find_matching_ticket_method(self):
        """Should have _find_matching_ticket method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_find_matching_ticket')
        assert callable(receiver._find_matching_ticket)

    def test_has_find_user_by_email_method(self):
        """Should have _find_user_by_email method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_find_user_by_email')
        assert callable(receiver._find_user_by_email)

    def test_has_update_error_method(self):
        """Should have _update_error method."""
        from smoothschedule.commerce.tickets.email_receiver import PlatformEmailReceiver

        mock_email_address = Mock()
        receiver = PlatformEmailReceiver(mock_email_address)

        assert hasattr(receiver, '_update_error')
        assert callable(receiver._update_error)


class TestTestImapConnection:
    """Tests for test_imap_connection function."""

    def test_function_exists(self):
        """Should have test_imap_connection function."""
        from smoothschedule.commerce.tickets.email_receiver import test_imap_connection

        assert callable(test_imap_connection)

    def test_function_returns_tuple(self):
        """Should return a tuple with bool and string."""
        from smoothschedule.commerce.tickets.email_receiver import test_imap_connection
        import inspect

        sig = inspect.signature(test_imap_connection)
        # Function takes no required args
        assert len(sig.parameters) == 0


class TestTicketEmailReceiverMethodsExecution:
    """Tests for TicketEmailReceiver method execution."""

    def test_decode_header_returns_empty_for_empty_input(self):
        """Should return empty string for empty input."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert receiver._decode_header('') == ''

    def test_html_to_text_removes_script_tags(self):
        """Should remove script tags from HTML."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._html_to_text('<script>alert("bad")</script><p>Hello</p>')

        assert 'script' not in result.lower()
        assert 'alert' not in result
        assert 'Hello' in result

    def test_html_to_text_removes_style_tags(self):
        """Should remove style tags from HTML."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._html_to_text('<style>body { color: red; }</style><p>Hello</p>')

        assert 'style' not in result.lower()
        assert 'color' not in result
        assert 'Hello' in result

    def test_html_to_text_replaces_br_with_newlines(self):
        """Should replace br tags with newlines."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._html_to_text('Line 1<br>Line 2<br/>Line 3')

        assert '\n' in result
        assert 'Line 1' in result
        assert 'Line 2' in result

    def test_extract_reply_text_returns_empty_for_empty(self):
        """Should return empty for empty input."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        assert receiver._extract_reply_text('') == ''

    def test_extract_reply_text_strips_quoted_content(self):
        """Should strip quoted content from reply."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        text = "This is my reply.\n\nOn Jan 1, 2024, someone wrote:\n> Original message"
        result = receiver._extract_reply_text(text)

        assert 'This is my reply' in result
        assert 'Original message' not in result

    def test_extract_ticket_id_from_address(self):
        """Should extract ticket ID from email address."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._extract_ticket_id('ticket-123@example.com', 'Re: Issue')

        assert result == '123'

    def test_extract_ticket_id_from_subject(self):
        """Should extract ticket ID from subject."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._extract_ticket_id('support@example.com', '[Ticket #456] Issue')

        assert result == '456'

    def test_extract_ticket_id_returns_empty_when_not_found(self):
        """Should return empty string when no ticket ID found."""
        from smoothschedule.commerce.tickets.email_receiver import TicketEmailReceiver

        mock_email_address = Mock()
        receiver = TicketEmailReceiver(mock_email_address)

        result = receiver._extract_ticket_id('support@example.com', 'General inquiry')

        assert result == ''
