import os
import os.path as osp
import subprocess
import tempfile

from click.testing import CliRunner

from mim.commands.install import cli as install
from mim.commands.uninstall import cli as uninstall


def test_third_party():
    runner = CliRunner()
    # mim install fire
    result = runner.invoke(install, ['fire'])
    assert result.exit_code == 0

    # mim uninstall fire --yes
    result = runner.invoke(uninstall, ['fire', '--yes'])
    assert result.exit_code == 0


def test_mmcv_install():
    runner = CliRunner()
    # mim install mmcv-full --yes
    # install latest version
    result = runner.invoke(install, ['mmcv-full', '--yes'])
    assert result.exit_code == 0

    # mim install mmcv-full==1.3.1 --yes
    result = runner.invoke(install, ['mmcv-full==1.3.1', '--yes'])
    assert result.exit_code == 0

    # mim uninstall mmcv-full --yes
    result = runner.invoke(uninstall, ['mmcv-full', '--yes'])
    assert result.exit_code == 0

    # version should be less than latest version
    # mim install mmcv-full==100.0.0 --yes
    result = runner.invoke(install, ['mmcv-full==100.0.0', '--yes'])
    assert result.exit_code == 1


def test_mmrepo_install():
    runner = CliRunner()

    # install local repo
    with tempfile.TemporaryDirectory() as temp_root:
        repo_root = osp.join(temp_root, 'mmclassification')
        subprocess.check_call([
            'git', 'clone',
            'https://github.com/open-mmlab/mmclassification.git', repo_root
        ])

        # mim install .
        current_root = os.getcwd()
        os.chdir(repo_root)
        result = runner.invoke(install, ['.', '--yes'])
        assert result.exit_code == 0

        os.chdir('..')

        # mim install ./mmclassification
        result = runner.invoke(install, ['./mmclassification', '--yes'])
        assert result.exit_code == 0

        # mim install mmclassification
        result = runner.invoke(install, ['mmclassification', '--yes'])
        assert result.exit_code == 0

        os.chdir(current_root)

    # mim install mmcls --yes
    result = runner.invoke(install, ['mmcls', '--yes'])
    assert result.exit_code == 0

    # mim install mmcls -f https://github.com/open-mmlab/mmclassification.git
    # install master branch
    result = runner.invoke(install, [
        'mmcls', '--yes', '-f',
        'https://github.com/open-mmlab/mmclassification.git'
    ])

    # mim install mmcls==0.11.0 --yes
    result = runner.invoke(install, ['mmcls==0.11.0', '--yes'])
    assert result.exit_code == 0