#!/usr/bin/env python3
"""
Install Hermes Bridge into Houdini.

Copies the Python panel to ~/houdini21.0/scripts/python/
and the shelf tool to ~/houdini21.0/toolbar/

Usage: python install.py [--houdini-dir ~/houdini21.0]
"""
import os
import sys
import shutil
import argparse

FILES = {
    "hermes_bridge_panel.py": "scripts/python/",
    "hermes_bridge.shelf": "toolbar/",
}


def get_houdini_dir():
    """Auto-detect Houdini prefs directory."""
    home = os.path.expanduser("~")
    for d in sorted(os.listdir(home), reverse=True):
        if d.startswith("houdini") and os.path.isdir(os.path.join(home, d)):
            return os.path.join(home, d)
    return os.path.join(home, "houdini21.0")


def main():
    parser = argparse.ArgumentParser(description="Install Hermes Bridge into Houdini")
    parser.add_argument(
        "--houdini-dir",
        default=get_houdini_dir(),
        help=f"Houdini preferences directory (default: {get_houdini_dir()})",
    )
    args = parser.parse_args()

    src_dir = os.path.dirname(os.path.abspath(__file__))

    for filename, subdir in FILES.items():
        src = os.path.join(src_dir, filename)
        dst_dir = os.path.join(os.path.expanduser(args.houdini_dir), subdir)
        dst = os.path.join(dst_dir, filename)

        if not os.path.exists(src):
            print(f"  SKIP {filename} — source not found")
            continue

        os.makedirs(dst_dir, exist_ok=True)
        shutil.copy2(src, dst)
        print(f"  COPY {filename} -> {dst}")

    print(f"\nInstalled to {args.houdini_dir}")
    print("Restart Houdini — the shelf tool appears under 'Hermes Bridge'.")


if __name__ == "__main__":
    main()