"""copy_file.py – tool for copying files inside the sandbox."""

from __future__ import annotations

from shlex import quote
from typing import TYPE_CHECKING

from langchain_core.tools import BaseTool, tool
from loguru import logger

from docker_agent_sandbox.tools._utils import _parent

if TYPE_CHECKING:
    from docker_agent_sandbox.sandbox import DockerSandbox


def make_copy_file_tool(sandbox: "DockerSandbox") -> BaseTool:
    """Return a copy_file tool bound to *sandbox*."""

    @tool
    def copy_file(src: str, dst: str) -> str:
        """
        Copy a file from *src* to *dst*.

        Parent directories of *dst* are created automatically.
        Returns a confirmation message or an error.
        """
        logger.debug("Copying file inside sandbox: {!r} -> {!r}", src, dst)
        mkdir_cmd = f"mkdir -p -- {quote(_parent(dst))}"
        exit_code, output = sandbox.exec(
            f"{mkdir_cmd} && cp -- {quote(src)} {quote(dst)}"
        )
        if exit_code != 0:
            return f"[ERROR copying {src!r} to {dst!r}] {output.strip()}"
        return f"[OK] Copied {src} -> {dst}"

    return copy_file