import subprocess
from pathlib import Path

RUN_TIMEOUT = 30  # seconds

class ExecutionEngine:
    def __init__(self):
        pass
    
    def run_code(self, active_file: Path) -> dict:
        suffix = active_file.suffix
        current_dir = active_file.parent.resolve()

        if suffix == ".py":
            cmd = ["py", active_file.name]
        elif suffix == ".tex":
            cmd = [
                "pdflatex",
                "-interaction=nonstopmode",
                f"-output-directory={current_dir}",
                active_file.name,
            ]
        else:
            return {"stdout": "", "stderr": f"Unsupported file type: {suffix}", "rc": 1}
    
        try:
            proc = subprocess.run(
                cmd,
                cwd=current_dir,
                capture_output=True,
                text=True,
                timeout=RUN_TIMEOUT,
            )
            return {"stdout": proc.stdout, "stderr": proc.stderr, "rc": proc.returncode}
        
        except subprocess.TimeoutExpired:
            return {"stdout": "", "stderr": f"Timed out after {RUN_TIMEOUT}s", "rc": -1}
        except FileNotFoundError as e:
            return {"stdout": "", "stderr": str(e), "rc": -1}
        except Exception as e:
            return {"stdout": "", "stderr": str(e), "rc": -1}