"""
Exercise 16.5: Documentation in Python Projects

Learn how to create effective documentation for your Python code and projects.

Tasks:
1. Complete the functions to generate and manage documentation
2. Learn about different documentation styles and tools
3. Practice creating comprehensive documentation

Topics covered:
- Docstring formats (Google, NumPy, reStructuredText)
- Documentation generation with Sphinx
- README and project documentation
- API reference generation
"""

import os
import sys
import subprocess
import re
from pathlib import Path
from typing import List, Dict, Any, Tuple, Optional, Set

def parse_docstring(docstring: str) -> Dict[str, Any]:
    """
    Parse a docstring into structured data.
    
    Args:
        docstring: The docstring to parse
        
    Returns:
        Dictionary with parsed docstring information
    """
    # TODO: Identify docstring format (Google, NumPy, reStructuredText)
    # TODO: Parse the docstring into sections
    # TODO: Return structured data
    pass

def generate_docstring(function_signature: str, docstring_style: str = "google") -> str:
    """
    Generate a docstring template for a function.
    
    Args:
        function_signature: The function signature
        docstring_style: Style of docstring to generate ('google', 'numpy', 'rst')
        
    Returns:
        Generated docstring template
    """
    # TODO: Parse the function signature to extract parameters and return type
    # TODO: Generate a docstring template in the specified style
    # TODO: Return the generated docstring
    pass

def setup_sphinx_docs(project_dir: Path) -> Tuple[bool, str]:
    """
    Set up Sphinx documentation for a project.
    
    Args:
        project_dir: Project directory
        
    Returns:
        Tuple of (success, message)
    """
    # TODO: Create docs directory if it doesn't exist
    # TODO: Run sphinx-quickstart
    # TODO: Configure sphinx (conf.py)
    # TODO: Return success/failure and message
    pass

def build_sphinx_docs(docs_dir: Path) -> Tuple[bool, str]:
    """
    Build Sphinx documentation.
    
    Args:
        docs_dir: Documentation directory
        
    Returns:
        Tuple of (success, message)
    """
    # TODO: Run sphinx-build
    # TODO: Return success/failure and message
    pass

def create_readme(project_dir: Path, project_name: str, description: str) -> Tuple[bool, str]:
    """
    Create a README.md file for a project.
    
    Args:
        project_dir: Project directory
        project_name: Name of the project
        description: Project description
        
    Returns:
        Tuple of (success, message)
    """
    # TODO: Create a README.md with project information
    # TODO: Include installation, usage, etc. sections
    # TODO: Return success/failure and message
    pass

def create_api_reference(project_dir: Path, package_name: str) -> Tuple[bool, str]:
    """
    Create API reference documentation.
    
    Args:
        project_dir: Project directory
        package_name: Name of the package
        
    Returns:
        Tuple of (success, message)
    """
    # TODO: Create RST files for API documentation
    # TODO: Configure autodoc
    # TODO: Return success/failure and message
    pass

def analyze_docstring_coverage(project_dir: Path) -> Dict[str, Any]:
    """
    Analyze docstring coverage in a project.
    
    Args:
        project_dir: Project directory
        
    Returns:
        Dictionary with coverage statistics
    """
    # TODO: Find all Python files in the project
    # TODO: Check each file for functions/classes with missing docstrings
    # TODO: Calculate coverage statistics
    # TODO: Return the statistics
    pass

class DocstringConverter:
    """A class to convert between different docstring styles."""
    
    def __init__(self, source_style: str, target_style: str):
        """
        Initialize the docstring converter.
        
        Args:
            source_style: Source docstring style ('google', 'numpy', 'rst')
            target_style: Target docstring style ('google', 'numpy', 'rst')
        """
        self.source_style = source_style
        self.target_style = target_style
    
    def convert(self, docstring: str) -> str:
        """
        Convert a docstring from source style to target style.
        
        Args:
            docstring: The docstring to convert
            
        Returns:
            Converted docstring
        """
        # TODO: Parse the docstring using the source style
        # TODO: Generate a new docstring in the target style
        # TODO: Return the converted docstring
        pass
    
    def convert_file(self, file_path: Path) -> Tuple[bool, str]:
        """
        Convert all docstrings in a file.
        
        Args:
            file_path: Path to the Python file
            
        Returns:
            Tuple of (success, message)
        """
        # TODO: Read the file
        # TODO: Find and convert all docstrings
        # TODO: Write the modified content back to the file
        # TODO: Return success/failure and message
        pass
    
    def convert_project(self, project_dir: Path) -> Dict[str, Any]:
        """
        Convert all docstrings in a project.
        
        Args:
            project_dir: Project directory
            
        Returns:
            Dictionary with conversion statistics
        """
        # TODO: Find all Python files in the project
        # TODO: Convert docstrings in each file
        # TODO: Calculate and return statistics
        pass

if __name__ == "__main__":
    # Example usage
    print("Python Documentation Tool")
    print("-----------------------")
    
    # Generate docstring if requested
    if len(sys.argv) > 1 and sys.argv[1] == "generate":
        function_sig = sys.argv[2] if len(sys.argv) > 2 else "def example_function(param1: int, param2: str) -> bool:"
        style = sys.argv[3] if len(sys.argv) > 3 else "google"
        
        docstring = generate_docstring(function_sig, style)
        print(f"\nGenerated {style.capitalize()} style docstring:\n")
        print(docstring)
    
    # Setup Sphinx docs if requested
    if len(sys.argv) > 1 and sys.argv[1] == "setup":
        project_dir = Path(sys.argv[2]) if len(sys.argv) > 2 else Path.cwd()
        
        success, message = setup_sphinx_docs(project_dir)
        print(message)
    
    # Analyze docstring coverage if requested
    if len(sys.argv) > 1 and sys.argv[1] == "analyze":
        project_dir = Path(sys.argv[2]) if len(sys.argv) > 2 else Path.cwd()
        
        coverage = analyze_docstring_coverage(project_dir)
        print("\nDocstring Coverage Analysis:")
        print(f"Total functions/classes: {coverage.get('total', 0)}")
        print(f"With docstrings: {coverage.get('with_docstrings', 0)}")
        print(f"Missing docstrings: {coverage.get('missing_docstrings', 0)}")
        print(f"Coverage percentage: {coverage.get('percentage', 0):.1f}%")
        
        if coverage.get('missing', []):
            print("\nFunctions/classes missing docstrings:")
            for item in coverage.get('missing', [])[:10]:  # Show first 10
                print(f"  {item}")
            
            if len(coverage.get('missing', [])) > 10:
                print(f"  ... and {len(coverage.get('missing', [])) - 10} more")
    
    # Convert docstrings if requested
    if len(sys.argv) > 1 and sys.argv[1] == "convert":
        source_style = sys.argv[2] if len(sys.argv) > 2 else "google"
        target_style = sys.argv[3] if len(sys.argv) > 3 else "numpy"
        file_path = Path(sys.argv[4]) if len(sys.argv) > 4 else None
        
        converter = DocstringConverter(source_style, target_style)
        
        if file_path:
            success, message = converter.convert_file(file_path)
            print(message)
        else:
            print(f"Converting docstrings from {source_style} to {target_style}...")
            print("Specify a file path to convert a specific file.")
