"""
Пример теста для модели User

Этот файл демонстрирует, как должны выглядеть реальные тесты.
Остальные файлы содержат только заглушки с TODO комментариями.
"""
import pytest
from datetime import datetime
from models.user import User, escape_html


class TestUserExample:
    """Пример тестов для модели User"""
    
    def test_user_creation_basic(self):
        """Тест базового создания пользователя"""
        # Arrange
        telegram_id = 123456789
        first_name = "Test"
        chat_id = 123456789
        profile_link = "test_link"
        
        # Act
        user = User(
            telegram_id=telegram_id,
            first_name=first_name,
            chat_id=chat_id,
            profile_link=profile_link
        )
        
        # Assert
        assert user.telegram_id == telegram_id
        assert user.first_name == first_name
        assert user.chat_id == chat_id
        assert user.profile_link == profile_link
        assert user.is_active is True
        assert user.is_superuser is False
        assert user.created_at is not None
        assert user.updated_at is not None
    
    def test_user_creation_with_all_fields(self):
        """Тест создания пользователя со всеми полями"""
        # Arrange
        telegram_id = 123456789
        username = "testuser"
        first_name = "Test"
        last_name = "User"
        chat_id = 123456789
        profile_link = "test_link"
        is_active = True
        is_superuser = False
        created_at = datetime.now()
        updated_at = datetime.now()
        banned_until = None
        ban_reason = None
        
        # Act
        user = User(
            telegram_id=telegram_id,
            username=username,
            first_name=first_name,
            last_name=last_name,
            chat_id=chat_id,
            profile_link=profile_link,
            is_active=is_active,
            is_superuser=is_superuser,
            created_at=created_at,
            updated_at=updated_at,
            banned_until=banned_until,
            ban_reason=ban_reason
        )
        
        # Assert
        assert user.telegram_id == telegram_id
        assert user.username == username
        assert user.first_name == first_name
        assert user.last_name == last_name
        assert user.chat_id == chat_id
        assert user.profile_link == profile_link
        assert user.is_active == is_active
        assert user.is_superuser == is_superuser
        assert user.created_at == created_at
        assert user.updated_at == updated_at
        assert user.banned_until == banned_until
        assert user.ban_reason == ban_reason
    
    def test_user_validation_telegram_id_positive(self):
        """Тест валидации положительного Telegram ID"""
        # Arrange
        telegram_id = 123456789
        
        # Act
        user = User(
            telegram_id=telegram_id,
            first_name="Test",
            chat_id=123456789,
            profile_link="test_link"
        )
        
        # Assert
        assert user.telegram_id == telegram_id
        assert user.telegram_id > 0
    
    def test_user_display_name_with_username(self):
        """Тест метода get_display_name с username"""
        # Arrange
        user = User(
            telegram_id=123456789,
            username="testuser",
            first_name="Test",
            last_name="User",
            chat_id=123456789,
            profile_link="test_link"
        )
        
        # Act
        display_name = user.get_display_name()
        
        # Assert
        assert display_name == "@testuser"
    
    def test_user_display_name_without_username(self):
        """Тест метода get_display_name без username"""
        # Arrange
        user = User(
            telegram_id=123456789,
            first_name="Test",
            last_name="User",
            chat_id=123456789,
            profile_link="test_link"
        )
        
        # Act
        display_name = user.get_display_name()
        
        # Assert
        assert display_name == "Test User"
    
    def test_user_display_name_first_name_only(self):
        """Тест метода get_display_name только с first_name"""
        # Arrange
        user = User(
            telegram_id=123456789,
            first_name="Test",
            chat_id=123456789,
            profile_link="test_link"
        )
        
        # Act
        display_name = user.get_display_name()
        
        # Assert
        assert display_name == "Test"
    
    def test_user_profile_link_generation(self):
        """Тест генерации ссылки профиля"""
        # Arrange
        user = User(
            telegram_id=123456789,
            first_name="Test",
            chat_id=123456789,
            profile_link="test_link"
        )
        
        # Act
        profile_link = user.get_profile_link()
        
        # Assert
        assert profile_link == "test_link"
        assert profile_link.startswith("https://t.me/")
    
    def test_user_string_representation(self):
        """Тест строкового представления пользователя"""
        # Arrange
        user = User(
            telegram_id=123456789,
            username="testuser",
            first_name="Test",
            last_name="User",
            chat_id=123456789,
            profile_link="test_link"
        )
        
        # Act
        str_repr = str(user)
        
        # Assert
        assert "User" in str_repr
        assert "123456789" in str_repr
        assert "testuser" in str_repr


class TestEscapeHtmlExample:
    """Пример тестов для функции escape_html"""
    
    def test_escape_html_basic(self):
        """Тест базового HTML экранирования"""
        # Arrange
        text = "<script>alert('xss')</script>"
        
        # Act
        escaped = escape_html(text)
        
        # Assert
        assert escaped == "&lt;script&gt;alert(&#x27;xss&#x27;)&lt;/script&gt;"
        assert "<" not in escaped
        assert ">" not in escaped
        assert "'" not in escaped
    
    def test_escape_html_special_characters(self):
        """Тест экранирования специальных символов"""
        # Arrange
        text = "Test & < > \" '"
        
        # Act
        escaped = escape_html(text)
        
        # Assert
        assert escaped == "Test &amp; &lt; &gt; &quot; &#x27;"
    
    def test_escape_html_none_input(self):
        """Тест обработки None входных данных"""
        # Arrange
        text = None
        
        # Act
        escaped = escape_html(text)
        
        # Assert
        assert escaped is None
    
    def test_escape_html_empty_string(self):
        """Тест обработки пустой строки"""
        # Arrange
        text = ""
        
        # Act
        escaped = escape_html(text)
        
        # Assert
        assert escaped == ""
    
    def test_escape_html_already_escaped(self):
        """Тест обработки уже экранированного текста"""
        # Arrange
        text = "&lt;script&gt;"
        
        # Act
        escaped = escape_html(text)
        
        # Assert
        assert escaped == "&amp;lt;script&amp;gt;"