"""Smoke-test an *installed* app_skellington (wheel, sdist or index release).

Run it from outside the source tree, so the installed copy is the one imported:

    cd / && python /path/to/scripts/smoke_import.py [EXPECTED_VERSION]
"""

import importlib.metadata
import os
import pathlib
import subprocess
import sys


def fail(msg):
    sys.exit("smoke FAILED: " + msg)


def main(argv):
    expected = argv[1] if len(argv) > 1 else None

    import app_skellington

    location = pathlib.Path(app_skellington.__file__).resolve()
    if "site-packages" not in location.parts:
        fail("imported the source tree, not an installed copy: %s" % location)

    from app_skellington import (  # noqa: F401  (the public API must import)
        ApplicationContainer,
        CommandTree,
        Config,
        LoggingLayer,
        NoCommandSpecified,
        ServiceNotFound,
        SubMenu,
    )

    version = importlib.metadata.version("app_skellington")
    if version.startswith("0.0"):
        fail("setuptools_scm found no tags (shallow clone?): %s" % version)
    if expected is not None and version != expected:
        fail("expected version %s, got %s" % (expected, version))

    # _bootstrap.py takes a different code path when APPSKELLINGTON_DEBUG is set.
    env = dict(os.environ, APPSKELLINGTON_DEBUG="1")
    proc = subprocess.run([sys.executable, "-c", "import app_skellington"], env=env)
    if proc.returncode != 0:
        fail("import failed with APPSKELLINGTON_DEBUG=1")

    print("smoke ok:", version, location)


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