#!/usr/bin/env python3
"""Synchronize duplicated publish and development WebUI package contracts."""

from __future__ import annotations

import argparse
import json
from pathlib import Path


SYNCHRONIZED_KEYS = ("peerDependencies", "peerDependenciesMeta")


def main() -> int:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--repo", type=Path, required=True)
    args = parser.parse_args()

    root_path = args.repo / "package.json"
    webui_path = args.repo / "webui" / "package.json"
    if not root_path.exists() or not webui_path.exists():
        return 0

    root = _load(root_path)
    webui = _load(webui_path)
    root_name = root.get("name")
    webui_name = webui.get("name")
    if not isinstance(root_name, str) or root_name != webui_name:
        return 0

    changed = False
    for key in SYNCHRONIZED_KEYS:
        if key in webui:
            value = webui[key]
            if root.get(key) != value:
                root[key] = value
                changed = True
        elif key in root:
            del root[key]
            changed = True

    if changed:
        root_path.write_text(json.dumps(root, indent=2) + "\n")
        print(f"Synchronized WebUI peer metadata in {root_path}")
    return 0


def _load(path: Path) -> dict[str, object]:
    payload = json.loads(path.read_text())
    if not isinstance(payload, dict):
        raise SystemExit(f"package metadata must be an object: {path}")
    return payload


if __name__ == "__main__":
    raise SystemExit(main())