#!/usr/bin/env python3
"""Fill an installer template with one published artifact's details.

Usage: render-installer.py <template> <output> <version> <binary> <sha256> <url>

The Linux template embeds the application icon so the installer works offline.
"""

from __future__ import annotations

import pathlib
import sys


def main(argv: list[str]) -> int:
    if len(argv) != 7:
        print(
            "usage: render-installer.py <template> <output> <version> "
            "<binary> <sha256> <url>",
            file=sys.stderr,
        )
        return 2

    template, output, version, binary, sha256, url = argv[1:]
    root = pathlib.Path(__file__).resolve().parent.parent
    icon = (root / "gui" / "assets" / "zagan-bet.svg").read_text()

    text = pathlib.Path(template).read_text()
    replacements = {
        "__VERSION__": version,
        "__BINARY__": binary,
        "__SHA256__": sha256,
        "__URL__": url,
        "__ICON__": icon.rstrip("\n"),
    }
    for placeholder, value in replacements.items():
        text = text.replace(placeholder, value)

    destination = pathlib.Path(output)
    destination.write_text(text)
    if destination.suffix == ".sh":
        destination.chmod(0o755)

    print(f"    {destination} ({destination.stat().st_size} bytes)")
    return 0


if __name__ == "__main__":
    raise SystemExit(main(sys.argv))