import time
import sys
from pathlib import Path

import pytest

sys.path.append(str(Path(__file__).resolve().parent / "micropip"))


def test_install_simple(selenium_standalone):
    selenium_standalone.run("import os")
    selenium_standalone.load_package("micropip")
    selenium_standalone.run("import micropip")
    selenium_standalone.run("micropip.install('pyodide-micropip-test')")
    # Package 'pyodide-micropip-test' has dependency on 'snowballstemmer'
    # It is used to test markers support

    for i in range(10):
        if selenium_standalone.run(
            "os.path.exists" "('/lib/python3.8/site-packages/snowballstemmer')"
        ):
            break
        else:
            time.sleep(1)

    selenium_standalone.run("import snowballstemmer")
    selenium_standalone.run("stemmer = snowballstemmer.stemmer('english')")
    assert selenium_standalone.run(
        "stemmer.stemWords('go going goes gone'.split())"
    ) == ["go", "go", "goe", "gone"]


def test_parse_wheel_url():
    pytest.importorskip("distlib")
    import micropip

    url = "https://a/snowballstemmer-2.0.0-py2.py3-none-any.whl"
    name, wheel, version = micropip._parse_wheel_url(url)
    assert name == "snowballstemmer"
    assert version == "2.0.0"
    assert wheel == {
        "digests": None,
        "filename": "snowballstemmer-2.0.0-py2.py3-none-any.whl",
        "packagetype": "bdist_wheel",
        "python_version": "py2.py3",
        "abi_tag": "none",
        "platform": "any",
        "url": url,
    }

    msg = "not a valid wheel file name"
    with pytest.raises(ValueError, match=msg):
        url = "https://a/snowballstemmer-2.0.0-py2.whl"
        name, params, version = micropip._parse_wheel_url(url)

    url = "http://scikit_learn-0.22.2.post1-cp35-cp35m-macosx_10_9_intel.whl"
    name, wheel, version = micropip._parse_wheel_url(url)
    assert name == "scikit_learn"
    assert wheel["platform"] == "macosx_10_9_intel"


def test_install_custom_url(selenium_standalone, web_server_tst_data):
    server_hostname, server_port, server_log = web_server_tst_data
    selenium_standalone.load_package("micropip")
    selenium_standalone.run("import micropip")
    base_url = f"http://{server_hostname}:{server_port}/"
    url = base_url + "snowballstemmer-2.0.0-py2.py3-none-any.whl"
    selenium_standalone.run(f"micropip.install('{url}')")
    # wait untill micropip is loaded
    time.sleep(1)
    selenium_standalone.run("import snowballstemmer")


def test_last_version_from_pypi():
    pytest.importorskip("distlib")
    import micropip

    class Namespace:
        def __init__(self, **entries):
            self.__dict__.update(entries)

    # requirement as returned by distlib.util.parse_requirement
    requirement = Namespace(
        constraints=None,
        extras=None,
        marker=None,
        name="dummy_module",
        requirement="dummy_module",
        url=None,
    )

    # available versions
    versions = ["0.0.1", "0.15.5", "0.9.1"]

    # building metadata as returned from
    # https://pypi.org/pypi/{pkgname}/json
    metadata = {
        "releases": {
            v: [{"filename": f"dummy_module-{v}-py3-none-any.whl"}] for v in versions
        }
    }

    # get version number from find_wheel
    wheel, ver = micropip.PACKAGE_MANAGER.find_wheel(metadata, requirement)

    assert ver == "0.15.5"