#!/usr/bin/env python3
"""Read .release/current JSON from stdin and write GitHub Actions outputs."""
from __future__ import annotations

import json
import os
import sys


def main() -> int:
    raw = sys.stdin.read().strip()
    data = json.loads(raw) if raw else {}
    current = data.get("current") or ""
    previous = data.get("previous") or ""
    output_path = os.environ["GITHUB_OUTPUT"]
    with open(output_path, "a", encoding="utf-8") as handle:
        handle.write(f"live_current={current}\n")
        handle.write(f"live_previous={previous}\n")
    print(
        "Pointer live current="
        + (current or "<empty>")
        + " previous="
        + (previous or "<empty>")
    )
    return 0


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