#!/usr/bin/env python3
"""Export Hermes dependencies without attempting to build Hermes itself."""

from __future__ import annotations

import re
import sys
import tomllib
from pathlib import Path


def main() -> None:
    document = tomllib.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
    project = document["project"]
    optional = project.get("optional-dependencies", {})
    pending = list(project.get("dependencies", [])) + list(optional.get("all", []))
    emitted: set[str] = set()

    while pending:
        requirement = pending.pop(0)
        match = re.fullmatch(r"hermes-agent(?:\[([^]]+)\])?", requirement.strip())
        if match:
            extras = [item.strip() for item in (match.group(1) or "").split(",") if item.strip()]
            for extra in extras:
                if extra not in optional:
                    raise SystemExit(f"Unknown Hermes extra: {extra}")
                pending[:0] = optional[extra]
            continue
        if requirement not in emitted:
            print(requirement)
            emitted.add(requirement)


if __name__ == "__main__":
    main()