"""
Explain command for Vaahai CLI.

This module implements the 'explain' command, which generates explanations for code.
"""

from enum import Enum
from pathlib import Path
from typing import Optional, Dict, Any

import typer
from rich.console import Console

from vaahai.core.config import ConfigManager, OutputFormat, ReviewDepth

console = Console()

# Create the command app
app = typer.Typer(help="Generate code explanations")

@app.command()
def main(
    path: Path = typer.Argument(
        ...,
        exists=True,
        help="Path to file to explain",
    ),
    depth: Optional[ReviewDepth] = typer.Option(
        None,
        help="Explanation depth",
    ),
    output: Optional[OutputFormat] = typer.Option(
        None,
        help="Output format",
    ),
    output_file: Optional[Path] = typer.Option(
        None,
        help="Output file path",
    ),
    private: Optional[bool] = typer.Option(
        None,
        help="Use only local resources",
    ),
) -> None:
    """
    Generate explanations for code.
    
    This command uses LLM capabilities to generate human-readable
    explanations of code functionality and structure.
    """
    # Load configuration with CLI args
    config_manager = ConfigManager()
    cli_args: Dict[str, Any] = {}
    
    # Add CLI args that were provided (not None)
    if depth is not None:
        cli_args["explain.depth"] = depth
    if output is not None:
        cli_args["explain.output_format"] = output
    if private is not None:
        cli_args["explain.private"] = private
    
    # Load configuration
    config_manager.load(cli_args)
    
    # Get effective configuration values
    effective_depth = config_manager.get("explain.depth")
    effective_output_format = config_manager.get("explain.output_format")
    effective_include_context = config_manager.get("explain.include_context")
    effective_private = config_manager.get("explain.private", False)
    
    # Display configuration
    console.print(f"[bold]Explaining:[/bold] {path}")
    console.print(f"[bold]Depth:[/bold] {effective_depth}")
    console.print(f"[bold]Output format:[/bold] {effective_output_format}")
    console.print(f"[bold]Include context:[/bold] {effective_include_context}")
    console.print(f"[bold]Private mode:[/bold] {effective_private}")
    
    # Placeholder for actual implementation
    console.print("[yellow]This is a skeleton implementation. Actual explanation functionality will be implemented in future tasks.[/yellow]")
