# Licensed to Elasticsearch B.V under one or more agreements.
# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
# See the LICENSE file in the project root for more information

"""A command line tool for building and verifying releases
Can be used for building both 'elasticsearch' and 'elasticsearchX' dists.
Only requires 'name' in 'setup.py' and the directory to be changed.
"""

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


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"^(elasticsearch\d*)-", os.path.basename(dist)).group(1)

        # 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 Elasticsearch")
        run(
            venv_python,
            "-c",
            f"from {dist_name}.helpers import scan, bulk, streaming_bulk, reindex",
        )
        run(venv_python, "-c", f"from {dist_name} import Elasticsearch")
        run(
            venv_python,
            "-c",
            f"from {dist_name}.helpers import scan, bulk, streaming_bulk, reindex",
        )

        # Ensure that async is not available yet
        run(
            venv_python,
            "-c",
            f"from {dist_name} import AsyncElasticsearch",
            expect_exit_code=256,
        )
        run(
            venv_python,
            "-c",
            f"from {dist_name}.helpers import async_scan, async_bulk, async_streaming_bulk, async_reindex",
            expect_exit_code=256,
        )

        # Install aiohttp and see that async is now available
        run(venv_python, "-m", "pip", "install", "aiohttp")
        run(venv_python, "-c", f"from {dist_name} import AsyncElasticsearch")

        # Ensure that the namespaces are correct for the dist
        for suffix in ("", "1", "2", "5", "6", "7", "8", "9", "10"):
            distx_name = f"elasticsearch{suffix}"
            run(
                venv_python,
                "-c",
                f"import {distx_name}",
                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 Elasticsearch",
            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()