#!/usr/bin/env python3
from __future__ import annotations

import argparse
import sys


PLACEHOLDER_IMAGE = "ghcr.io/example/unrip:bootstrap"


def render_release_manifest(manifest: str, image: str) -> str:
    return manifest.replace(PLACEHOLDER_IMAGE, image)


def main() -> int:
    parser = argparse.ArgumentParser(
        description="Render a release manifest by replacing placeholder app images."
    )
    parser.add_argument("--image", required=True, help="Fully qualified image reference to deploy.")
    args = parser.parse_args()

    source = sys.stdin.read()
    sys.stdout.write(render_release_manifest(source, args.image))
    return 0


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