"""The repository's own programs; see tools/README.md.

Importing this package checks that the tools can run here, and puts `src/` first on the path, so that
`import paperspec` gets this checkout's reference implementation rather than an installed copy.
The tools need Python 3.14 and the packages `cryptography` and `jsonschema`; the `paperspec` package
itself does not, and other programs install it on its own.
"""

import importlib.util
import os
import sys

if sys.version_info < (3, 14):
    sys.exit("The paperspec tools need Python 3.14 or later; this is Python %d.%d." % sys.version_info[:2])

_missing = [m for m in ("cryptography", "jsonschema") if importlib.util.find_spec(m) is None]
if _missing:
    sys.exit("The paperspec tools need %s %s; run them through pixi, or install %s with pip."
             % ("the package" if len(_missing) == 1 else "the packages", " and ".join(_missing),
                "it" if len(_missing) == 1 else "them"))

SRC = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "src")
if SRC not in sys.path:
    sys.path.insert(0, SRC)