import subprocess
import shlex
from pathlib import Path

TIMEOUT_SECONDS = 60

def run_powershell(script: str, base_dir: str) -> str:
    """
    Run a PowerShell script with working directory set to base_dir.
    Returns a string combining stdout, stderr, and exit code.
    Raises nothing - all errors are captured into the return string.
    """
    # Prepend Set-Location so the AI doesn't need to worry about cwd
    full_script = f"Set-Location -LiteralPath '{base_dir}'\n{script}"

    try:
        result = subprocess.run(
            ["powershell", "-NoProfile", "-NonInteractive", "-Command", full_script],
            capture_output=True,
            text=True,
            timeout=TIMEOUT_SECONDS,
            cwd=base_dir
        )
        parts = []
        if result.stdout.strip():
            parts.append(f"STDOUT:\n{result.stdout.strip()}")
        if result.stderr.strip():
            parts.append(f"STDERR:\n{result.stderr.strip()}")
        parts.append(f"EXIT CODE: {result.returncode}")
        return "\n".join(parts) if parts else f"EXIT CODE: {result.returncode}"
    except subprocess.TimeoutExpired:
        return f"ERROR: command timed out after {TIMEOUT_SECONDS}s"
    except FileNotFoundError:
        return "ERROR: powershell executable not found"
    except Exception as e:
        return f"ERROR: {e}"