#!/usr/bin/env python3
import shutil, os
from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
OUT  = ROOT / "install"
VER  = (ROOT / "VERSION").read_text().strip() if (ROOT / "VERSION").exists() else "0.1.0"
BUNDLE = OUT / f"cascadingdev-{VER}"

def main():
    # Removes the old install bundle if it already exists
    if BUNDLE.exists():
        shutil.rmtree(BUNDLE)
    # Create the directories
    (BUNDLE / "assets" / "hooks").mkdir(parents=True, exist_ok=True)
    (BUNDLE / "assets" / "templates").mkdir(parents=True, exist_ok=True)

    # Copy the git hook and any other runtime utilities.
    shutil.copy2(ROOT / "assets" / "runtime" / "ramble.py", BUNDLE / "ramble.py")
    shutil.copy2(ROOT / "assets" / "runtime" / "create_feature.py", BUNDLE / "create_feature.py")

    shutil.copy2(ROOT / "assets" / "hooks" / "pre-commit", BUNDLE / "assets" / "hooks" / "pre-commit")

    # copy core templates
    for t in ["feature_request.md","discussion.md","design_doc.md","USER_GUIDE.md"]:
        shutil.copy2(ROOT / "assets" / "templates" / t, BUNDLE / "assets" / "templates" / t)

    # copy (recursively) the contents of process/ and rules/ templates folders
    def copy_tree(src, dst):
        if dst.exists():
            shutil.rmtree(dst)
        shutil.copytree(src, dst)
    copy_tree(ROOT / "assets" / "templates" / "process", BUNDLE / "assets" / "templates" / "process")
    copy_tree(ROOT / "assets" / "templates" / "rules", BUNDLE / "assets" / "templates" / "rules")

    # write installer entrypoint
    shutil.copy2(ROOT / "src" / "cascadingdev" / "setup_project.py",
                 BUNDLE / "setup_cascadingdev.py")

    (BUNDLE / "INSTALL.md").write_text("Unzip, then run:\n\n  python3 setup_cascadingdev.py\n", encoding="utf-8")
    (BUNDLE / "VERSION").write_text(VER, encoding="utf-8")
    print(f"[✓] Built installer → {BUNDLE}")

if __name__ == "__main__":
    main()