# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
import time
import logging

import pytest

LOGGER = logging.getLogger(__name__)


def test_cli_args(container, http_client):
    """Container should respect notebook server command line args
    (e.g., disabling token security)"""
    container.run(
        command=['start-notebook.sh', '--NotebookApp.token=""']
    )
    resp = http_client.get('http://localhost:8888')
    resp.raise_for_status()
    assert 'login_submit' not in resp.text


@pytest.mark.filterwarnings('ignore:Unverified HTTPS request')
def test_unsigned_ssl(container, http_client):
    """Container should generate a self-signed SSL certificate
    and notebook server should use it to enable HTTPS.
    """
    container.run(
        environment=['GEN_CERT=yes']
    )
    # NOTE: The requests.Session backing the http_client fixture does not retry
    # properly while the server is booting up. An SSL handshake error seems to
    # abort the retry logic. Forcing a long sleep for the moment until I have
    # time to dig more.
    time.sleep(5)
    resp = http_client.get('https://localhost:8888', verify=False)
    resp.raise_for_status()
    assert 'login_submit' in resp.text


def test_uid_change(container):
    """Container should change the UID of the default user."""
    c = container.run(
        tty=True,
        user='root',
        environment=['NB_UID=1010'],
        command=['start.sh', 'bash', '-c', 'id && touch /opt/conda/test-file']
    )
    # usermod is slow so give it some time
    c.wait(timeout=120)
    assert 'uid=1010(jovyan)' in c.logs(stdout=True).decode('utf-8')


def test_gid_change(container):
    """Container should change the GID of the default user."""
    c = container.run(
        tty=True,
        user='root',
        environment=['NB_GID=110'],
        command=['start.sh', 'id']
    )
    c.wait(timeout=10)
    logs = c.logs(stdout=True).decode('utf-8')
    assert 'gid=110(jovyan)' in logs
    assert 'groups=110(jovyan),100(users)' in logs


def test_nb_user_change(container):
    """Container should change the user name (`NB_USER`) of the default user."""
    nb_user = "nayvoj"
    running_container = container.run(
        tty=True,
        user="root",
        environment=[
            f"NB_USER={nb_user}",
            "CHOWN_HOME=yes"
        ],
        working_dir=f"/home/{nb_user}",
        command=['start.sh', 'bash', '-c', 'sleep infinity']
    )

    LOGGER.info(f"Checking if the user is changed to {nb_user} by the start script ...")
    output = running_container.logs(stdout=True).decode("utf-8")
    assert f"Set username to: {nb_user}" in output, f"User is not changed to {nb_user}"

    LOGGER.info(f"Checking {nb_user} id ...")
    command = "id"
    expected_output = f"uid=1000({nb_user}) gid=100(users) groups=100(users)"
    cmd = running_container.exec_run(command, user=nb_user)
    output = cmd.output.decode("utf-8").strip("\n")
    assert output == expected_output, f"Bad user {output}, expected {expected_output}"

    LOGGER.info(f"Checking if {nb_user} owns his home folder ...")
    command = f'stat -c "%U %G" /home/{nb_user}/'
    expected_output = f"{nb_user} users"
    cmd = running_container.exec_run(command)
    output = cmd.output.decode("utf-8").strip("\n")
    assert output == expected_output, f"Bad owner for the {nb_user} home folder {output}, expected {expected_output}"


def test_chown_extra(container):
    """Container should change the UID/GID of CHOWN_EXTRA."""
    c = container.run(
        tty=True,
        user='root',
        environment=[
            'NB_UID=1010',
            'NB_GID=101',
            'CHOWN_EXTRA=/opt/conda',
            'CHOWN_EXTRA_OPTS=-R'
        ],
        command=['start.sh', 'bash', '-c', 'stat -c \'%n:%u:%g\' /opt/conda/LICENSE.txt']
    )
    # chown is slow so give it some time
    c.wait(timeout=120)
    assert '/opt/conda/LICENSE.txt:1010:101' in c.logs(stdout=True).decode('utf-8')


def test_chown_home(container):
    """Container should change the NB_USER home directory owner and
    group to the current value of NB_UID and NB_GID."""
    c = container.run(
        tty=True,
        user='root',
        environment=[
            'CHOWN_HOME=yes',
            'CHOWN_HOME_OPTS=-R'
        ],
        command=['start.sh', 'bash', '-c', 'chown root:root /home/jovyan && ls -alsh /home']
    )
    assert "Changing ownership of /home/jovyan to 1000:100 with options '-R'" in c.logs(stdout=True).decode('utf-8')


def test_sudo(container):
    """Container should grant passwordless sudo to the default user."""
    c = container.run(
        tty=True,
        user='root',
        environment=['GRANT_SUDO=yes'],
        command=['start.sh', 'sudo', 'id']
    )
    rv = c.wait(timeout=10)
    assert rv == 0 or rv["StatusCode"] == 0
    assert 'uid=0(root)' in c.logs(stdout=True).decode('utf-8')


def test_sudo_path(container):
    """Container should include /opt/conda/bin in the sudo secure_path."""
    c = container.run(
        tty=True,
        user='root',
        environment=['GRANT_SUDO=yes'],
        command=['start.sh', 'sudo', 'which', 'jupyter']
    )
    rv = c.wait(timeout=10)
    assert rv == 0 or rv["StatusCode"] == 0
    assert c.logs(stdout=True).decode('utf-8').rstrip().endswith('/opt/conda/bin/jupyter')


def test_sudo_path_without_grant(container):
    """Container should include /opt/conda/bin in the sudo secure_path."""
    c = container.run(
        tty=True,
        user='root',
        command=['start.sh', 'which', 'jupyter']
    )
    rv = c.wait(timeout=10)
    assert rv == 0 or rv["StatusCode"] == 0
    assert c.logs(stdout=True).decode('utf-8').rstrip().endswith('/opt/conda/bin/jupyter')


def test_group_add(container, tmpdir):
    """Container should run with the specified uid, gid, and secondary
    group.
    """
    c = container.run(
        user='1010:1010',
        group_add=['users'],
        command=['start.sh', 'id']
    )
    rv = c.wait(timeout=5)
    assert rv == 0 or rv["StatusCode"] == 0
    assert 'uid=1010 gid=1010 groups=1010,100(users)' in c.logs(stdout=True).decode('utf-8')