"""
Tests unitaires pour le service d'email.
"""

import pytest
from infrastructure.external.email_service import EmailService, SMTPConfig


class TestSMTPConfig:
    """Tests pour la configuration SMTP."""

    def test_valid_localhost_config(self):
        """Configuration locale valide sans authentification."""
        config = SMTPConfig(
            host="localhost",
            port=1025,
            username="",
            password="",
            use_tls=False,
            from_name="Test",
            from_address="test@example.com"
        )
        assert config.is_valid() is True

    def test_valid_production_config(self):
        """Configuration production valide avec authentification."""
        config = SMTPConfig(
            host="smtp.gmail.com",
            port=587,
            username="user@gmail.com",
            password="password123",
            use_tls=True,
            from_name="Notytex",
            from_address="notytex@school.com"
        )
        assert config.is_valid() is True

    def test_invalid_config_missing_host(self):
        """Configuration invalide sans host."""
        config = SMTPConfig(
            host="",
            port=587,
            username="user",
            password="pass",
            use_tls=True,
            from_name="Test",
            from_address="test@example.com"
        )
        assert config.is_valid() is False

    def test_invalid_config_missing_from_address(self):
        """Configuration invalide sans adresse expéditeur."""
        config = SMTPConfig(
            host="smtp.gmail.com",
            port=587,
            username="user",
            password="pass",
            use_tls=True,
            from_name="Test",
            from_address=""
        )
        assert config.is_valid() is False

    def test_invalid_production_config_no_auth(self):
        """Configuration production invalide sans authentification."""
        config = SMTPConfig(
            host="smtp.gmail.com",
            port=587,
            username="",
            password="",
            use_tls=True,
            from_name="Test",
            from_address="test@example.com"
        )
        assert config.is_valid() is False


class TestEmailService:
    """Tests pour le service d'email."""

    def test_service_not_configured(self):
        """Service non configuré."""
        service = EmailService()
        assert service.is_configured() is False

    def test_service_with_config(self):
        """Service avec configuration valide."""
        config = SMTPConfig(
            host="localhost",
            port=1025,
            username="",
            password="",
            use_tls=False,
            from_name="Test",
            from_address="test@example.com"
        )
        service = EmailService(config)
        assert service.is_configured() is True

    def test_set_config(self):
        """Définir la configuration après initialisation."""
        service = EmailService()
        assert service.is_configured() is False

        config = SMTPConfig(
            host="localhost",
            port=1025,
            username="",
            password="",
            use_tls=False,
            from_name="Test",
            from_address="test@example.com"
        )
        service.set_config(config)
        assert service.is_configured() is True

    def test_send_email_not_configured(self):
        """Envoi d'email échoue si non configuré."""
        service = EmailService()
        result = service.send_email(
            to_emails=["test@example.com"],
            subject="Test",
            html_body="<p>Test</p>"
        )
        assert result['success'] is False
        assert 'incomplète' in result['error']

    def test_from_database_config(self):
        """Création du service depuis la configuration DB."""
        db_config = {
            'email.smtp_host': 'localhost',
            'email.smtp_port': '1025',
            'email.username': '',
            'email.password': '',
            'email.use_tls': 'false',
            'email.from_name': 'Notytex',
            'email.from_address': 'test@example.com'
        }

        service = EmailService.from_database_config(db_config)
        assert service.is_configured() is True
        assert service.config.host == 'localhost'
        assert service.config.port == 1025
        assert service.config.from_name == 'Notytex'

    def test_from_database_config_defaults(self):
        """Valeurs par défaut pour la configuration DB."""
        db_config = {}

        service = EmailService.from_database_config(db_config)
        assert service.config.port == 587
        assert service.config.use_tls is True
        assert service.config.from_name == 'Notytex'


class TestEmailValidation:
    """Tests pour la validation d'adresses email."""

    def test_validate_valid_emails(self):
        """Validation d'adresses valides."""
        emails = ["test@example.com", "user.name@domain.org", "a@b.co"]
        result = EmailService.validate_email_addresses(emails)

        assert result['valid_count'] == 3
        assert result['invalid_count'] == 0
        assert len(result['valid']) == 3

    def test_validate_invalid_emails(self):
        """Validation d'adresses invalides."""
        emails = ["invalid", "no-at-sign", "@nodomain", "space @test.com"]
        result = EmailService.validate_email_addresses(emails)

        assert result['valid_count'] == 0
        assert result['invalid_count'] == 4

    def test_validate_mixed_emails(self):
        """Validation d'un mélange d'adresses."""
        emails = ["valid@test.com", "invalid", "another@valid.org"]
        result = EmailService.validate_email_addresses(emails)

        assert result['valid_count'] == 2
        assert result['invalid_count'] == 1
        assert "valid@test.com" in result['valid']
        assert "invalid" in result['invalid']

    def test_validate_empty_emails(self):
        """Validation d'une liste vide."""
        result = EmailService.validate_email_addresses([])

        assert result['valid_count'] == 0
        assert result['invalid_count'] == 0

    def test_validate_whitespace_emails(self):
        """Les espaces sont supprimés lors de la validation."""
        emails = [" test@example.com ", "  user@domain.org"]
        result = EmailService.validate_email_addresses(emails)

        assert result['valid_count'] == 2
        assert "test@example.com" in result['valid']
        assert "user@domain.org" in result['valid']