#!/usr/bin/env python3
"""
Test pylint compliance for deb-bootc-image-builder.

This module tests code quality and pylint compliance,
including:
- Code style validation
- Pylint score checking
- Debian-specific code standards
"""

import pytest
import os
import tempfile
import shutil
import subprocess
import logging

# Configure logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


class TestPylintCompliance:
    """Test cases for pylint compliance."""

    def test_pylint_installation(self, work_dir):
        """Test that pylint is available."""
        try:
            result = subprocess.run(
                ["pylint", "--version"],
                capture_output=True,
                text=True,
                timeout=10
            )
            assert result.returncode == 0, "pylint is not properly installed"
            logger.info("pylint is available")
        except FileNotFoundError:
            pytest.skip("pylint not installed")

    def test_pylint_basic_usage(self, work_dir):
        """Test basic pylint functionality."""
        # Create a simple test file
        test_file = os.path.join(work_dir, "test_pylint.py")
        with open(test_file, 'w') as f:
            f.write('''#!/usr/bin/env python3
"""
Test file for pylint validation.
"""

def test_function():
    """Test function for pylint."""
    return "test"

if __name__ == "__main__":
    print(test_function())
''')
        
        # Run pylint on the test file
        try:
            result = subprocess.run(
                ["pylint", test_file],
                capture_output=True,
                text=True,
                timeout=30
            )
            
            # Pylint should run without errors
            assert result.returncode in [0, 1], f"pylint failed with return code {result.returncode}"
            logger.info("pylint basic functionality test passed")
            
        except subprocess.TimeoutExpired:
            pytest.fail("pylint timed out")
        except Exception as e:
            pytest.fail(f"pylint test failed: {e}")

    def test_debian_specific_code_standards(self, work_dir):
        """Test Debian-specific code standards."""
        # Create a test file with Debian-specific patterns
        test_file = os.path.join(work_dir, "debian_test.py")
        with open(test_file, 'w') as f:
            f.write('''#!/usr/bin/env python3
"""
Debian-specific test file for pylint validation.
"""

import os
import subprocess
import logging
from typing import Dict, List, Any, Optional

# Configure logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


class DebianBootcBuilder:
    """Debian bootc image builder class."""
    
    def __init__(self, work_dir: str):
        """Initialize the builder."""
        self.work_dir = work_dir
        self.packages: List[str] = []
        self.release = "trixie"
        self.arch = "amd64"
    
    def add_package(self, package: str) -> None:
        """Add a package to the installation list."""
        if package not in self.packages:
            self.packages.append(package)
            logger.info(f"Added package: {package}")
    
    def set_release(self, release: str) -> None:
        """Set the Debian release."""
        valid_releases = ["trixie", "bookworm", "bullseye"]
        if release in valid_releases:
            self.release = release
            logger.info(f"Set release to: {release}")
        else:
            raise ValueError(f"Invalid release: {release}")
    
    def build_image(self) -> Dict[str, Any]:
        """Build the Debian image."""
        logger.info("Starting Debian image build")
        
        # Validate configuration
        if not self.packages:
            raise ValueError("No packages specified")
        
        # Build process would go here
        result = {
            "status": "success",
            "packages": self.packages,
            "release": self.release,
            "arch": self.arch
        }
        
        logger.info("Debian image build completed")
        return result


def main() -> None:
    """Main function."""
    builder = DebianBootcBuilder("/tmp/test")
    builder.add_package("linux-image-amd64")
    builder.add_package("systemd")
    builder.set_release("trixie")
    
    try:
        result = builder.build_image()
        print(f"Build result: {result}")
    except Exception as e:
        logger.error(f"Build failed: {e}")


if __name__ == "__main__":
    main()
''')
        
        # Run pylint with Debian-specific configuration
        try:
            result = subprocess.run(
                ["pylint", "--disable=C0114,C0116", test_file],
                capture_output=True,
                text=True,
                timeout=30
            )
            
            # Check pylint output for Debian-specific patterns
            output = result.stdout + result.stderr
            
            # Should not have critical errors
            assert "E0001" not in output, "Critical pylint errors found"
            
            # Check for specific Debian patterns
            assert "debian" in output.lower() or "bootc" in output.lower(), \
                "Debian-specific content not detected"
            
            logger.info("Debian-specific code standards test passed")
            
        except subprocess.TimeoutExpired:
            pytest.fail("pylint Debian test timed out")
        except Exception as e:
            pytest.fail(f"pylint Debian test failed: {e}")

    def test_pylint_score_threshold(self, work_dir):
        """Test that pylint score meets minimum threshold."""
        # Create a high-quality test file
        test_file = os.path.join(work_dir, "high_quality_test.py")
        with open(test_file, 'w') as f:
            f.write('''#!/usr/bin/env python3
"""
High-quality test file for pylint scoring.
"""

import os
import logging
from typing import Dict, List, Any, Optional

# Configure logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


class HighQualityClass:
    """A high-quality class for testing."""
    
    def __init__(self, name: str):
        """Initialize the class."""
        self.name = name
        self.data: List[str] = []
    
    def add_item(self, item: str) -> None:
        """Add an item to the data list."""
        if item and item not in self.data:
            self.data.append(item)
            logger.info(f"Added item: {item}")
    
    def get_items(self) -> List[str]:
        """Get all items from the data list."""
        return self.data.copy()
    
    def clear_items(self) -> None:
        """Clear all items from the data list."""
        self.data.clear()
        logger.info("Cleared all items")


def high_quality_function(param: str) -> str:
    """A high-quality function for testing."""
    if not param:
        return ""
    
    result = param.upper()
    logger.info(f"Processed parameter: {param} -> {result}")
    return result


def main() -> None:
    """Main function."""
    obj = HighQualityClass("test")
    obj.add_item("item1")
    obj.add_item("item2")
    
    items = obj.get_items()
    print(f"Items: {items}")
    
    result = high_quality_function("hello")
    print(f"Function result: {result}")


if __name__ == "__main__":
    main()
''')
        
        # Run pylint and check score
        try:
            result = subprocess.run(
                ["pylint", "--score=yes", test_file],
                capture_output=True,
                text=True,
                timeout=30
            )
            
            output = result.stdout + result.stderr
            
            # Extract score from output
            score_line = [line for line in output.split('\n') if 'Your code has been rated at' in line]
            
            if score_line:
                score_text = score_line[0]
                # Extract numeric score
                import re
                score_match = re.search(r'(\d+\.\d+)', score_text)
                if score_match:
                    score = float(score_match.group(1))
                    
                    # Check if score meets minimum threshold (8.0)
                    assert score >= 8.0, f"Pylint score {score} is below minimum threshold 8.0"
                    logger.info(f"Pylint score: {score} (meets minimum threshold)")
                else:
                    pytest.fail("Could not extract pylint score")
            else:
                pytest.fail("Could not find pylint score in output")
            
        except subprocess.TimeoutExpired:
            pytest.fail("pylint score test timed out")
        except Exception as e:
            pytest.fail(f"pylint score test failed: {e}")

    def test_pylint_configuration(self, work_dir):
        """Test pylint configuration and custom rules."""
        # Create a pylint configuration file
        pylintrc = os.path.join(work_dir, ".pylintrc")
        with open(pylintrc, 'w') as f:
            f.write('''[MASTER]
# Python code to execute before analysis
init-hook='import sys; sys.path.append(".")'

[REPORTS]
# Set the output format
output-format=text

# Include a brief explanation of each error
msg-template={path}:{line}: [{msg_id}({symbol}), {obj}] {msg}

# Include a brief explanation of each error
include-naming-hint=yes

[MESSAGES CONTROL]
# Disable specific warnings
disable=C0114,C0116,R0903

[FORMAT]
# Maximum number of characters on a single line
max-line-length=120

# Maximum number of lines in a module
max-module-lines=1000

[SIMILARITIES]
# Minimum lines number of a similarity
min-similarity-lines=4

# Ignore imports when computing similarities
ignore-imports=yes
''')
        
        # Create a test file
        test_file = os.path.join(work_dir, "config_test.py")
        with open(test_file, 'w') as f:
            f.write('''#!/usr/bin/env python3
"""
Test file for pylint configuration.
"""

def test_function():
    return "test"

if __name__ == "__main__":
    print(test_function())
''')
        
        # Run pylint with custom configuration
        try:
            result = subprocess.run(
                ["pylint", "--rcfile", pylintrc, test_file],
                capture_output=True,
                text=True,
                timeout=30
            )
            
            # Should run without configuration errors
            assert result.returncode in [0, 1], f"pylint with custom config failed: {result.returncode}"
            logger.info("Pylint configuration test passed")
            
        except subprocess.TimeoutExpired:
            pytest.fail("pylint configuration test timed out")
        except Exception as e:
            pytest.fail(f"pylint configuration test failed: {e}")


if __name__ == "__main__":
    pytest.main([__file__])
