"""
DGM (Darwin Godel Machine) operations for the EVOSEAL CLI.
"""

from __future__ import annotations

from pathlib import Path
from typing import Annotated

import typer

from ..base import EVOSEALCommand

app = typer.Typer(name="dgm", help="DGM code improvement workflows")


@app.callback()
def main() -> None:
    """DGM code improvement workflows."""
    return None


@app.command("improve")
def improve_code(
    target: Annotated[
        str,
        typer.Argument(help="Target file or directory to improve."),
    ],
    objective: Annotated[
        str,
        typer.Option("--objective", "-o", help="Improvement objective."),
    ] = "performance",
    iterations: Annotated[
        int,
        typer.Option("--iterations", "-i", help="Number of improvement iterations."),
    ] = 10,
    output_dir: Annotated[
        Path,
        typer.Option("--output", "-o", help="Output directory for improved code."),
    ] = Path("results/dgm"),
) -> None:
    """Improve code using DGM."""
    typer.echo(f"Improving code at {target} with objective: {objective}")
    # TODO: Implement actual DGM improvement
    typer.echo("DGM code improvement is not yet implemented.")


@app.command("evaluate")
def evaluate_code(
    code_path: Annotated[
        str,
        typer.Argument(help="Path to code to evaluate."),
    ],
    metrics: Annotated[
        list[str] | None,
        typer.Option("--metric", "-m", help="Metrics to evaluate."),
    ] = None,
) -> None:
    """Evaluate code using DGM metrics."""
    typer.echo(f"Evaluating code at {code_path}")
    # TODO: Implement code evaluation
    typer.echo("DGM code evaluation is not yet implemented.")


@app.command("compare")
def compare_versions(
    version1: Annotated[
        str,
        typer.Argument(help="Path to first version of code."),
    ],
    version2: Annotated[
        str,
        typer.Argument(help="Path to second version of code."),
    ],
    metric: Annotated[
        str,
        typer.Option("--metric", "-m", help="Metric to compare."),
    ] = "all",
) -> None:
    """Compare two versions of code."""
    typer.echo(f"Comparing {version1} with {version2}")
    # TODO: Implement code comparison
    typer.echo("DGM code comparison is not yet implemented.")


if __name__ == "__main__":
    app()
