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# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

import importlib
import logging
from pathlib import Path
from unittest import mock
from zipfile import is_zipfile, ZipFile

import pytest
import yaml  # noqa: F401
from flask import current_app
from freezegun import freeze_time

import superset.cli.importexport
import superset.cli.thumbnails
from superset import db
from superset.models.dashboard import Dashboard
from tests.integration_tests.fixtures.birth_names_dashboard import (
    load_birth_names_dashboard_with_slices,  # noqa: F401
    load_birth_names_data,  # noqa: F401
)

logger = logging.getLogger(__name__)


def assert_cli_fails_properly(response, caplog):
    """
    Ensure that a CLI command fails according to a predefined behaviour.
    """
    # don't exit successfully
    assert response.exit_code != 0

    # end the logs with a record on an error
    assert caplog.records[-1].levelname == "ERROR"


@pytest.mark.usefixtures("load_birth_names_dashboard_with_slices")
def test_export_dashboards_versioned_export(app_context, fs):
    """
    Test that a ZIP file is exported.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_dashboards correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    runner = current_app.test_cli_runner()
    with freeze_time("2021-01-01T00:00:00Z"):
        response = runner.invoke(superset.cli.importexport.export_dashboards, ())

    assert response.exit_code == 0
    assert Path("dashboard_export_20210101T000000.zip").exists()

    assert is_zipfile("dashboard_export_20210101T000000.zip")


@mock.patch(
    "superset.commands.dashboard.export.ExportDashboardsCommand.run",
    side_effect=Exception(),
)
def test_failing_export_dashboards_versioned_export(
    export_dashboards_command, app_context, fs, caplog
):
    """
    Test that failing to export ZIP file is done elegantly.
    """
    caplog.set_level(logging.DEBUG)

    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_dashboards correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    runner = current_app.test_cli_runner()
    with freeze_time("2021-01-01T00:00:00Z"):
        response = runner.invoke(superset.cli.importexport.export_dashboards, ())

    assert_cli_fails_properly(response, caplog)


@pytest.mark.usefixtures("load_birth_names_dashboard_with_slices")
def test_export_datasources_versioned_export(app_context, fs):
    """
    Test that a ZIP file is exported.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_dashboards correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    runner = current_app.test_cli_runner()
    with freeze_time("2021-01-01T00:00:00Z"):
        response = runner.invoke(superset.cli.importexport.export_datasources, ())

    assert response.exit_code == 0
    assert Path("dataset_export_20210101T000000.zip").exists()

    assert is_zipfile("dataset_export_20210101T000000.zip")


@mock.patch(
    "superset.commands.dashboard.export.ExportDatasetsCommand.run",
    side_effect=Exception(),
)
def test_failing_export_datasources_versioned_export(
    export_dashboards_command, app_context, fs, caplog
):
    """
    Test that failing to export ZIP file is done elegantly.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_dashboards correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    runner = current_app.test_cli_runner()
    with freeze_time("2021-01-01T00:00:00Z"):
        response = runner.invoke(superset.cli.importexport.export_datasources, ())

    assert_cli_fails_properly(response, caplog)


@mock.patch("superset.commands.dashboard.importers.dispatcher.ImportDashboardsCommand")
def test_import_dashboards_versioned_export(import_dashboards_command, app_context, fs):
    """
    Test that both ZIP and JSON can be imported.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_dashboards correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    # write JSON file
    with open("dashboards.json", "w") as fp:
        fp.write('{"hello": "world"}')

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_dashboards,
        ("-p", "dashboards.json", "-u", "admin"),
    )

    assert response.exit_code == 0
    expected_contents = {"dashboards.json": '{"hello": "world"}'}
    import_dashboards_command.assert_called_with(expected_contents, overwrite=True)

    # write ZIP file
    with ZipFile("dashboards.zip", "w") as bundle:
        with bundle.open("dashboards/dashboard.yaml", "w") as fp:
            fp.write(b"hello: world")

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_dashboards,
        ("-p", "dashboards.zip", "-u", "admin"),
    )

    assert response.exit_code == 0
    expected_contents = {"dashboard.yaml": "hello: world"}
    import_dashboards_command.assert_called_with(expected_contents, overwrite=True)


@mock.patch(
    "superset.commands.dashboard.importers.dispatcher.ImportDashboardsCommand.run",
    side_effect=Exception(),
)
def test_failing_import_dashboards_versioned_export(
    import_dashboards_command, app_context, fs, caplog
):
    """
    Test that failing to import either ZIP and JSON is done elegantly.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_dashboards correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    # write JSON file
    with open("dashboards.json", "w") as fp:
        fp.write('{"hello": "world"}')

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_dashboards,
        ("-p", "dashboards.json", "-u", "admin"),
    )

    assert_cli_fails_properly(response, caplog)

    # write ZIP file
    with ZipFile("dashboards.zip", "w") as bundle:
        with bundle.open("dashboards/dashboard.yaml", "w") as fp:
            fp.write(b"hello: world")

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_dashboards,
        ("-p", "dashboards.zip", "-u", "admin"),
    )

    assert_cli_fails_properly(response, caplog)


@mock.patch("superset.commands.dataset.importers.dispatcher.ImportDatasetsCommand")
def test_import_datasets_versioned_export(import_datasets_command, app_context, fs):
    """
    Test that both ZIP and YAML can be imported.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_datasets correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    # write YAML file
    with open("datasets.yaml", "w") as fp:
        fp.write("hello: world")

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_datasources, ("-p", "datasets.yaml")
    )

    assert response.exit_code == 0
    expected_contents = {"datasets.yaml": "hello: world"}
    import_datasets_command.assert_called_with(expected_contents, overwrite=True)

    # write ZIP file
    with ZipFile("datasets.zip", "w") as bundle:
        with bundle.open("datasets/dataset.yaml", "w") as fp:
            fp.write(b"hello: world")

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_datasources, ("-p", "datasets.zip")
    )

    assert response.exit_code == 0
    expected_contents = {"dataset.yaml": "hello: world"}
    import_datasets_command.assert_called_with(expected_contents, overwrite=True)


@mock.patch(
    "superset.commands.dataset.importers.dispatcher.ImportDatasetsCommand.run",
    side_effect=Exception(),
)
def test_failing_import_datasets_versioned_export(
    import_datasets_command, app_context, fs, caplog
):
    """
    Test that failing to import either ZIP or YAML is done elegantly.
    """
    # pylint: disable=reimported, redefined-outer-name
    import superset.cli.importexport  # noqa: F811

    # reload to define export_datasets correctly based on the
    # feature flags
    importlib.reload(superset.cli.importexport)

    # write YAML file
    with open("datasets.yaml", "w") as fp:
        fp.write("hello: world")

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_datasources, ("-p", "datasets.yaml")
    )

    assert_cli_fails_properly(response, caplog)

    # write ZIP file
    with ZipFile("datasets.zip", "w") as bundle:
        with bundle.open("datasets/dataset.yaml", "w") as fp:
            fp.write(b"hello: world")

    runner = current_app.test_cli_runner()
    response = runner.invoke(
        superset.cli.importexport.import_datasources, ("-p", "datasets.zip")
    )

    assert_cli_fails_properly(response, caplog)


@pytest.mark.usefixtures("load_birth_names_dashboard_with_slices")
@mock.patch("superset.tasks.thumbnails.cache_dashboard_thumbnail")
def test_compute_thumbnails(thumbnail_mock, app_context, fs):
    thumbnail_mock.return_value = None
    runner = current_app.test_cli_runner()
    dashboard = db.session.query(Dashboard).filter_by(slug="births").first()
    response = runner.invoke(
        superset.cli.thumbnails.compute_thumbnails,
        ["-d", "-i", dashboard.id],
    )

    thumbnail_mock.assert_called_with(None, dashboard.id, force=False)
    assert response.exit_code == 0