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

import sys
from pathlib import Path


def read_value(path: Path, key: str, default: str) -> str:
    if not path.exists():
        return default
    for raw in path.read_text(encoding="utf-8").splitlines():
        line = raw.strip()
        if not line or line.startswith("#") or "=" not in line:
            continue
        name, value = line.split("=", 1)
        if name.strip() == key:
            return value.strip().strip('"').strip("'")
    return default


def main() -> int:
    if len(sys.argv) < 3:
        print("usage: env-value.py ENV_FILE KEY [DEFAULT]", file=sys.stderr)
        return 2
    default = sys.argv[3] if len(sys.argv) > 3 else ""
    print(read_value(Path(sys.argv[1]), sys.argv[2], default))
    return 0


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