"""
Tests for HR email notifications functionality.
"""
import pytest
from unittest.mock import patch, MagicMock
from app import send_hr_notification


class TestHRNotifications:
    """Test HR notification email functionality."""

    def test_hr_notification_sent_on_submission(self, client, create_test_application, mock_mail):
        """Test that HR receives email when application is submitted."""
        # Set HR_EMAIL in config
        from app import app
        app.config['HR_EMAIL'] = 'hr@example.com'
        app.config['APPLICATION_URL_BASE'] = 'http://localhost:5000'

        # Create a test application with all required data
        session_id = 'test-session-123'
        create_test_application(
            session_id=session_id,
            email='applicant@example.com',
            job_name='Software Developer',
            current_page=4,
            personal_info={
                'name': 'Müller',
                'firstname': 'Anna',
                'address': 'Hauptstrasse 123',
                'zip_code': '8001',
                'city': 'Zürich',
                'phone': '+41 79 123 45 67',
                'birth_year': '1990',
                'civil_status': 'ledig'
            },
            motivation_answers={
                'current_job': 'Developer',
                'motivation': 'Great company',
                'qualifications': 'Python expert',
                'salary': '100000'
            }
        )

        # Submit the application
        response = client.post(f'/apply/{session_id}/submit-application')

        # Verify redirect to confirmation page
        assert response.status_code == 302
        assert f'/apply/{session_id}/confirmation' in response.location

        # Verify HR email was sent
        assert len(mock_mail.sent_messages) == 1
        hr_email = mock_mail.sent_messages[0]

        assert 'hr@example.com' in hr_email.recipients
        assert 'Neue Bewerbung eingegangen: Software Developer' == hr_email.subject
        assert 'Anna Müller' in hr_email.body
        assert 'applicant@example.com' in hr_email.body
        assert f'/application/{session_id}/' in hr_email.body

    def test_hr_notification_not_sent_when_hr_email_not_configured(
        self, client, create_test_application, mock_mail, caplog
    ):
        """Test that HR notification is skipped when HR_EMAIL is not configured."""
        # Ensure HR_EMAIL is not set
        from app import app
        app.config['HR_EMAIL'] = None

        # Create a test application
        session_id = 'test-session-456'
        create_test_application(
            session_id=session_id,
            email='applicant@example.com',
            job_name='Data Analyst',
            current_page=4,
            personal_info={
                'name': 'Schmidt',
                'firstname': 'Max',
                'address': 'Bahnhofstrasse 1',
                'zip_code': '8000',
                'city': 'Zürich',
                'phone': '+41 79 999 88 77',
                'birth_year': '1985',
                'civil_status': 'verheiratet'
            }
        )

        # Submit the application
        response = client.post(f'/apply/{session_id}/submit-application')

        # Verify redirect to confirmation page
        assert response.status_code == 302

        # Verify no HR email was sent
        assert len(mock_mail.sent_messages) == 0

        # Verify warning was logged
        assert 'HR_EMAIL not configured' in caplog.text

    def test_hr_notification_includes_file_count(self, client, create_test_application, mock_mail):
        """Test that HR notification includes the count of uploaded files."""
        from app import app
        app.config['HR_EMAIL'] = 'hr@example.com'
        app.config['APPLICATION_URL_BASE'] = 'http://localhost:5000'

        # Create application with uploaded files
        session_id = 'test-session-789'
        create_test_application(
            session_id=session_id,
            email='applicant@example.com',
            job_name='Project Manager',
            current_page=4,
            personal_info={
                'name': 'Weber',
                'firstname': 'Lisa',
                'address': 'Seestrasse 45',
                'zip_code': '8002',
                'city': 'Zürich',
                'phone': '+41 79 555 44 33',
                'birth_year': '1992',
                'civil_status': 'ledig'
            },
            uploaded_files=[
                {
                    'original_name': 'cv.pdf',
                    'stored_name': '20250101_120000_cv.pdf',
                    'size': 102400,
                    'uploaded_at': '2025-01-01T12:00:00'
                },
                {
                    'original_name': 'certificate.pdf',
                    'stored_name': '20250101_120100_certificate.pdf',
                    'size': 204800,
                    'uploaded_at': '2025-01-01T12:01:00'
                }
            ]
        )

        # Submit the application
        response = client.post(f'/apply/{session_id}/submit-application')

        assert response.status_code == 302

        # Verify HR email contains file count
        assert len(mock_mail.sent_messages) == 1
        hr_email = mock_mail.sent_messages[0]
        assert 'Anzahl der hochgeladenen Dokumente: 2' in hr_email.body

    def test_hr_notification_with_zero_files(self, client, create_test_application, mock_mail):
        """Test that HR notification works even when no files are uploaded."""
        from app import app
        app.config['HR_EMAIL'] = 'hr@example.com'
        app.config['APPLICATION_URL_BASE'] = 'http://localhost:5000'

        # Create application without uploaded files
        session_id = 'test-session-000'
        create_test_application(
            session_id=session_id,
            email='applicant@example.com',
            job_name='Sales Representative',
            current_page=4,
            personal_info={
                'name': 'Fischer',
                'firstname': 'Tom',
                'address': 'Hauptplatz 10',
                'zip_code': '8003',
                'city': 'Zürich',
                'phone': '+41 79 111 22 33',
                'birth_year': '1988',
                'civil_status': 'ledig'
            },
            uploaded_files=[]
        )

        # Submit the application
        response = client.post(f'/apply/{session_id}/submit-application')

        assert response.status_code == 302

        # Verify HR email was sent with 0 file count
        assert len(mock_mail.sent_messages) == 1
        hr_email = mock_mail.sent_messages[0]
        assert 'Anzahl der hochgeladenen Dokumente: 0' in hr_email.body

    def test_send_hr_notification_function_directly(self, app):
        """Test the send_hr_notification function directly."""
        from app import send_hr_notification

        app.config['HR_EMAIL'] = 'hr@example.com'
        app.config['APPLICATION_URL_BASE'] = 'http://localhost:5000'

        session_id = 'test-123'
        app_data = {
            'email': 'applicant@example.com',
            'job_name': 'Test Job',
            'submitted_at': '2025-01-01T12:00:00',
            'personal_info': {
                'firstname': 'John',
                'name': 'Doe'
            },
            'uploaded_files': [
                {'original_name': 'cv.pdf', 'stored_name': 'cv_stored.pdf', 'size': 1024}
            ]
        }

        with app.app_context():
            # Mock mail.send to prevent actual sending
            with patch('app.mail.send') as mock_send:
                result = send_hr_notification(session_id, app_data)
                assert result is True
                assert mock_send.called

    def test_send_hr_notification_handles_email_failure(self, app, caplog):
        """Test that send_hr_notification handles email sending failures gracefully."""
        from app import send_hr_notification

        app.config['HR_EMAIL'] = 'hr@example.com'
        app.config['APPLICATION_URL_BASE'] = 'http://localhost:5000'

        session_id = 'test-456'
        app_data = {
            'email': 'applicant@example.com',
            'job_name': 'Test Job',
            'submitted_at': '2025-01-01T12:00:00',
            'personal_info': {
                'firstname': 'Jane',
                'name': 'Smith'
            },
            'uploaded_files': []
        }

        with app.app_context():
            # Mock mail.send to raise an exception
            with patch('app.mail.send', side_effect=Exception('SMTP error')):
                result = send_hr_notification(session_id, app_data)
                assert result is False
                assert 'Failed to send HR notification email' in caplog.text

    def test_hr_notification_url_format(self, client, create_test_application, mock_mail):
        """Test that the application URL in HR notification is correctly formatted."""
        from app import app
        app.config['HR_EMAIL'] = 'hr@example.com'
        app.config['APPLICATION_URL_BASE'] = 'https://example.com'

        session_id = 'test-url-format'
        create_test_application(
            session_id=session_id,
            email='applicant@example.com',
            job_name='Test Position',
            current_page=4,
            personal_info={
                'name': 'Test',
                'firstname': 'User',
                'address': 'Street 1',
                'zip_code': '8000',
                'city': 'City',
                'phone': '+41 79 123 45 67',
                'birth_year': '1990',
                'civil_status': 'ledig'
            }
        )

        # Submit the application
        client.post(f'/apply/{session_id}/submit-application')

        # Verify URL format in email
        assert len(mock_mail.sent_messages) == 1
        hr_email = mock_mail.sent_messages[0]
        expected_url = f'https://example.com/application/{session_id}/'
        assert expected_url in hr_email.body