"""
PyInstaller Runtime Hook: Add DLL Directory

This hook ensures that the executable directory is added to the DLL search path,
allowing packaged applications to load their bundled DLLs correctly.
"""

import os
import sys
from pathlib import Path

try:
    # Get the base directory where the executable is located
    # For onefile: _MEIPASS (temporary extraction dir)
    # For onedir: executable parent directory
    base = Path(getattr(sys, "_MEIPASS", Path(sys.executable).parent))

    # Python 3.8+: Explicitly add executable directory to DLL search path
    if hasattr(os, "add_dll_directory"):
        try:
            os.add_dll_directory(str(base))
        except Exception as e:
            # Silently ignore if adding fails (might already be added)
            pass

    # Also add to PATH as fallback for older Python versions
    current_path = os.environ.get("PATH", "")
    if str(base) not in current_path:
        os.environ["PATH"] = str(base) + os.pathsep + current_path

except Exception as e:
    # Don't crash the application if hook fails
    pass