import sys

import pytest
from conftest import MOCK_PACKAGE_DIR  # noqa: I100

from cibuildwheel.__main__ import main
from cibuildwheel.util import Architecture


def test_unknown_platform_non_ci(monkeypatch, capsys):
    monkeypatch.delenv('CI', raising=False)
    monkeypatch.delenv('BITRISE_BUILD_NUMBER', raising=False)
    monkeypatch.delenv('AZURE_HTTP_USER_AGENT', raising=False)
    monkeypatch.delenv('TRAVIS', raising=False)
    monkeypatch.delenv('APPVEYOR', raising=False)
    monkeypatch.delenv('GITHUB_ACTIONS', raising=False)
    monkeypatch.delenv('GITLAB_CI', raising=False)
    monkeypatch.delenv('CIRCLECI', raising=False)
    monkeypatch.delenv('CIBW_PLATFORM', raising=False)

    with pytest.raises(SystemExit) as exit:
        main()
        assert exit.value.code == 2
    _, err = capsys.readouterr()

    assert 'cibuildwheel: Unable to detect platform.' in err
    assert 'cibuildwheel should run on your CI server' in err


def test_unknown_platform_on_ci(monkeypatch, capsys):
    monkeypatch.setenv('CI', 'true')
    monkeypatch.setattr(sys, 'platform', 'nonexistent')
    monkeypatch.delenv('CIBW_PLATFORM', raising=False)

    with pytest.raises(SystemExit) as exit:
        main()
        assert exit.value.code == 2
    _, err = capsys.readouterr()

    assert 'cibuildwheel: Unable to detect platform from "sys.platform"' in err


def test_unknown_platform(monkeypatch, capsys):
    monkeypatch.setenv('CIBW_PLATFORM', 'nonexistent')

    with pytest.raises(SystemExit) as exit:
        main()
    _, err = capsys.readouterr()

    assert exit.value.code == 2
    assert 'cibuildwheel: Unsupported platform: nonexistent' in err


def test_platform_argument(platform, intercepted_build_args, monkeypatch):
    monkeypatch.setenv('CIBW_PLATFORM', 'nonexistent')
    monkeypatch.setattr(sys, 'argv', sys.argv + ['--platform', platform])

    main()

    assert intercepted_build_args.args[0].package_dir == MOCK_PACKAGE_DIR


def test_platform_environment(platform, intercepted_build_args, monkeypatch):
    main()

    assert intercepted_build_args.args[0].package_dir == MOCK_PACKAGE_DIR


def test_archs_default(platform, intercepted_build_args, monkeypatch):

    main()
    build_options = intercepted_build_args.args[0]

    if platform == 'linux':
        assert build_options.architectures == {Architecture.x86_64, Architecture.i686}
    elif platform == 'windows':
        assert build_options.architectures == {Architecture.AMD64, Architecture.x86}
    else:
        assert build_options.architectures == {Architecture.x86_64}


@pytest.mark.parametrize('use_env_var', [False, True])
def test_archs_argument(platform, intercepted_build_args, monkeypatch, use_env_var):

    if use_env_var:
        monkeypatch.setenv('CIBW_ARCHS', 'ppc64le')
    else:
        monkeypatch.setenv('CIBW_ARCHS', 'unused')
        monkeypatch.setattr(sys, 'argv', sys.argv + ['--archs', 'ppc64le'])

    if platform in {'macos', 'windows'}:
        with pytest.raises(SystemExit) as exit:
            main()
        assert exit.value.args == (4,)

    else:
        main()
        build_options = intercepted_build_args.args[0]
        assert build_options.architectures == {Architecture.ppc64le}


def test_archs_platform_specific(platform, intercepted_build_args, monkeypatch):
    monkeypatch.setenv('CIBW_ARCHS', 'unused')
    monkeypatch.setenv('CIBW_ARCHS_LINUX', 'ppc64le')
    monkeypatch.setenv('CIBW_ARCHS_WINDOWS', 'x86')
    monkeypatch.setenv('CIBW_ARCHS_MACOS', 'x86_64')

    main()
    build_options = intercepted_build_args.args[0]

    if platform == 'linux':
        assert build_options.architectures == {Architecture.ppc64le}
    elif platform == 'windows':
        assert build_options.architectures == {Architecture.x86}
    elif platform == 'macos':
        assert build_options.architectures == {Architecture.x86_64}


def test_archs_platform_native(platform, intercepted_build_args, monkeypatch):
    monkeypatch.setenv('CIBW_ARCHS', 'native')

    main()
    build_options = intercepted_build_args.args[0]

    if platform == 'linux':
        assert build_options.architectures == {Architecture.x86_64}
    elif platform == 'windows':
        assert build_options.architectures == {Architecture.AMD64}
    elif platform == 'macos':
        assert build_options.architectures == {Architecture.x86_64}


def test_archs_platform_all(platform, intercepted_build_args, monkeypatch):
    monkeypatch.setenv('CIBW_ARCHS', 'all')

    main()
    build_options = intercepted_build_args.args[0]

    if platform == 'linux':
        assert build_options.architectures == {Architecture.x86_64, Architecture.i686, Architecture.aarch64, Architecture.ppc64le, Architecture.s390x}
    elif platform == 'windows':
        assert build_options.architectures == {Architecture.x86, Architecture.AMD64}
    elif platform == 'macos':
        assert build_options.architectures == {Architecture.x86_64}