# SPDX-License-Identifier: Apache-2.0
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# this file be licensed under the Apache-2.0 license or a
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"""A command line tool for building and verifying releases
Can be used for building both 'opensearch' and 'opensearchX' dists.
Only requires 'name' in 'setup.py' and the directory to be changed.
"""

import contextlib
import os
import re
import shlex
import shutil
import tempfile

base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
tmp_dir = None


@contextlib.contextmanager
def set_tmp_dir():
    global tmp_dir
    tmp_dir = tempfile.mkdtemp()
    yield tmp_dir
    shutil.rmtree(tmp_dir)
    tmp_dir = None


def run(*argv, expect_exit_code=0):
    global tmp_dir
    if tmp_dir is None:
        os.chdir(base_dir)
    else:
        os.chdir(tmp_dir)

    cmd = " ".join(shlex.quote(x) for x in argv)
    print("$ " + cmd)
    exit_code = os.system(cmd)
    if exit_code != expect_exit_code:
        print(
            "Command exited incorrectly: should have been %d was %d"
            % (expect_exit_code, exit_code)
        )
        exit(exit_code or 1)


def test_dist(dist):
    with set_tmp_dir() as tmp_dir:
        dist_name = (
            re.match(r"^(opensearch\d*[_-]dsl)-", os.path.basename(dist))
            .group(1)
            .replace("-", "_")
        )

        # Build the venv and install the dist
        run("python", "-m", "venv", os.path.join(tmp_dir, "venv"))
        venv_python = os.path.join(tmp_dir, "venv/bin/python")
        run(venv_python, "-m", "pip", "install", "-U", "pip")
        run(venv_python, "-m", "pip", "install", dist)

        # Test the sync namespaces
        run(venv_python, "-c", f"from {dist_name} import Q")

        # Ensure that the namespaces are correct for the dist
        for suffix in ("", "1", "2", "5", "6", "7", "8", "9", "10"):
            distx_name = f"opensearch{suffix}_dsl"
            run(
                venv_python,
                "-c",
                f"import {distx_name}",
                expect_exit_code=256 if distx_name != dist_name else 0,
            )
            # Tests the dependencies of the dist
            run(
                venv_python,
                "-c",
                f"import opensearch{suffix}",
                expect_exit_code=256 if distx_name != dist_name else 0,
            )

        # Uninstall the dist, see that we can't import things anymore
        run(venv_python, "-m", "pip", "uninstall", "--yes", dist_name)
        run(
            venv_python,
            "-c",
            f"from {dist_name} import Q",
            expect_exit_code=256,
        )


def main():
    run("rm", "-rf", "build/", "dist/", "*.egg-info", ".eggs")
    run("python", "setup.py", "sdist", "bdist_wheel")

    for dist in os.listdir(os.path.join(base_dir, "dist")):
        test_dist(os.path.join(base_dir, "dist", dist))

    # After this run 'python -m twine upload dist/*'
    print(
        "\n\n"
        "===============================\n\n"
        "    * Releases are ready! *\n\n"
        "$ python -m twine upload dist/*\n\n"
        "==============================="
    )


if __name__ == "__main__":
    main()