# -*- coding: utf-8 -*-

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
# ---------------------------------------------------------------------- #
# Copyright (c) 2008-2019 OpenLP Developers                              #
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# This program is free software: you can redistribute it and/or modify   #
# it under the terms of the GNU General Public License as published by   #
# the Free Software Foundation, either version 3 of the License, or      #
# (at your option) any later version.                                    #
#                                                                        #
# This program is distributed in the hope that it will be useful,        #
# but WITHOUT ANY WARRANTY; without even the implied warranty of         #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          #
# GNU General Public License for more details.                           #
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# You should have received a copy of the GNU General Public License      #
# along with this program.  If not, see <https://www.gnu.org/licenses/>. #
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"""
Functional tests to test the Mac LibreOffice class and related methods.
"""
import shutil
from tempfile import mkdtemp
from unittest import TestCase, SkipTest
from unittest.mock import MagicMock, patch, call

from openlp.core.common import is_macosx
from openlp.core.common.path import Path
from openlp.plugins.presentations.lib.maclocontroller import MacLOController, MacLODocument

from tests.helpers.testmixin import TestMixin
from tests.utils.constants import TEST_RESOURCES_PATH

try:
    import Pyro4    # noqa: F401
except ImportError:
    raise SkipTest('Pyro4 is not installed, skipping testing the Mac LibreOffice controller')
if not is_macosx():
    raise SkipTest('Not on macOS, skipping testing the Mac LibreOffice controller')


class TestMacLOController(TestCase, TestMixin):
    """
    Test the MacLOController Class
    """

    def setUp(self):
        """
        Set up the patches and mocks need for all tests.
        """
        self.setup_application()
        self.build_settings()
        self.mock_plugin = MagicMock()
        self.temp_folder = mkdtemp()
        self.mock_plugin.settings_section = self.temp_folder

    def tearDown(self):
        """
        Stop the patches
        """
        self.destroy_settings()
        shutil.rmtree(self.temp_folder)

    @patch('openlp.plugins.presentations.lib.maclocontroller.MacLOController._start_server')
    def test_constructor(self, mocked_start_server):
        """
        Test the Constructor from the MacLOController
        """
        # GIVEN: No presentation controller
        controller = None

        # WHEN: The presentation controller object is created
        controller = MacLOController(plugin=self.mock_plugin)

        # THEN: The name of the presentation controller should be correct
        assert controller.name == 'maclo', \
            'The name of the presentation controller should be correct'
        assert controller.display_name == 'Impress on macOS', \
            'The display name of the presentation controller should be correct'
        mocked_start_server.assert_called_once_with()

    @patch('openlp.plugins.presentations.lib.maclocontroller.MacLOController._start_server')
    @patch('openlp.plugins.presentations.lib.maclocontroller.Proxy')
    def test_client(self, MockedProxy, mocked_start_server):
        """
        Test the client property of the Controller
        """
        # GIVEN: A controller without a client and a mocked out Pyro
        controller = MacLOController(plugin=self.mock_plugin)
        mocked_client = MagicMock()
        MockedProxy.return_value = mocked_client
        mocked_client._pyroConnection = None

        # WHEN: the client property is called the first time
        client = controller.client

        # THEN: a client is created
        assert client == mocked_client
        MockedProxy.assert_called_once_with('PYRO:openlp.libreofficeserver@localhost:4310')
        mocked_client._pyroReconnect.assert_called_once_with()

    @patch('openlp.plugins.presentations.lib.maclocontroller.MacLOController._start_server')
    def test_check_available(self, mocked_start_server):
        """
        Test the check_available() method
        """
        from openlp.plugins.presentations.lib.maclocontroller import macuno_available

        # GIVEN: A controller
        controller = MacLOController(plugin=self.mock_plugin)

        # WHEN: check_available() is run
        result = controller.check_available()

        # THEN: it should return false
        assert result == macuno_available

    @patch('openlp.plugins.presentations.lib.maclocontroller.MacLOController._start_server')
    def test_start_process(self, mocked_start_server):
        """
        Test the start_process() method
        """
        # GIVEN: A controller and a client
        controller = MacLOController(plugin=self.mock_plugin)
        controller._client = MagicMock()

        # WHEN: start_process() is called
        controller.start_process()

        # THEN: The client's start_process() should have been called
        controller._client.start_process.assert_called_once_with()

    @patch('openlp.plugins.presentations.lib.maclocontroller.MacLOController._start_server')
    def test_kill(self, mocked_start_server):
        """
        Test the kill() method
        """
        # GIVEN: A controller and a client
        controller = MacLOController(plugin=self.mock_plugin)
        controller._client = MagicMock()
        controller.server_process = MagicMock()

        # WHEN: start_process() is called
        controller.kill()

        # THEN: The client's start_process() should have been called
        controller._client.shutdown.assert_called_once_with()
        controller.server_process.kill.assert_called_once_with()


class TestMacLODocument(TestCase):
    """
    Test the MacLODocument Class
    """
    def setUp(self):
        mocked_plugin = MagicMock()
        mocked_plugin.settings_section = 'presentations'
        self.file_name = Path(TEST_RESOURCES_PATH) / 'presentations' / 'test.odp'
        self.mocked_client = MagicMock()
        with patch('openlp.plugins.presentations.lib.maclocontroller.MacLOController._start_server'):
            self.controller = MacLOController(mocked_plugin)
        self.controller._client = self.mocked_client
        self.document = MacLODocument(self.controller, self.file_name)

    @patch('openlp.plugins.presentations.lib.maclocontroller.ScreenList')
    def test_load_presentation_cannot_load(self, MockedScreenList):
        """
        Test the load_presentation() method when the server can't load the presentation
        """
        # GIVEN: A document and a mocked client
        mocked_screen_list = MagicMock()
        MockedScreenList.return_value = mocked_screen_list
        mocked_screen_list.current.number = 0
        self.mocked_client.load_presentation.return_value = False

        # WHEN: load_presentation() is called
        result = self.document.load_presentation()

        # THEN: Stuff should work right
        self.mocked_client.load_presentation.assert_called_once_with(str(self.file_name), 1)
        assert result is False

    @patch('openlp.plugins.presentations.lib.maclocontroller.ScreenList')
    def test_load_presentation(self, MockedScreenList):
        """
        Test the load_presentation() method
        """
        # GIVEN: A document and a mocked client
        mocked_screen_list = MagicMock()
        MockedScreenList.return_value = mocked_screen_list
        mocked_screen_list.current.number = 0
        self.mocked_client.load_presentation.return_value = True

        # WHEN: load_presentation() is called
        with patch.object(self.document, 'create_thumbnails') as mocked_create_thumbnails, \
                patch.object(self.document, 'create_titles_and_notes') as mocked_create_titles_and_notes:
            result = self.document.load_presentation()

        # THEN: Stuff should work right
        self.mocked_client.load_presentation.assert_called_once_with(str(self.file_name), 1)
        mocked_create_thumbnails.assert_called_once_with()
        mocked_create_titles_and_notes.assert_called_once_with()
        assert result is True

    def test_create_thumbnails_already_exist(self):
        """
        Test the create_thumbnails() method when thumbnails already exist
        """
        # GIVEN: thumbnails that exist and a mocked client
        self.document.check_thumbnails = MagicMock(return_value=True)

        # WHEN: create_thumbnails() is called
        self.document.create_thumbnails()

        # THEN: The method should exit early
        assert self.mocked_client.extract_thumbnails.call_count == 0

    @patch('openlp.plugins.presentations.lib.maclocontroller.delete_file')
    def test_create_thumbnails(self, mocked_delete_file):
        """
        Test the create_thumbnails() method
        """
        # GIVEN: thumbnails that don't exist and a mocked client
        self.document.check_thumbnails = MagicMock(return_value=False)
        self.mocked_client.extract_thumbnails.return_value = ['thumb1.png', 'thumb2.png']

        # WHEN: create_thumbnails() is called
        with patch.object(self.document, 'convert_thumbnail') as mocked_convert_thumbnail, \
                patch.object(self.document, 'get_temp_folder') as mocked_get_temp_folder:
            mocked_get_temp_folder.return_value = 'temp'
            self.document.create_thumbnails()

        # THEN: The method should complete successfully
        self.mocked_client.extract_thumbnails.assert_called_once_with('temp')
        assert mocked_convert_thumbnail.call_args_list == [
            call(Path('thumb1.png'), 1), call(Path('thumb2.png'), 2)]
        assert mocked_delete_file.call_args_list == [call(Path('thumb1.png')), call(Path('thumb2.png'))]

    def test_create_titles_and_notes(self):
        """
        Test create_titles_and_notes() method
        """
        # GIVEN: mocked client and mocked save_titles_and_notes() method
        self.mocked_client.get_titles_and_notes.return_value = ('OpenLP', 'This is a note')

        # WHEN: create_titles_and_notes() is called
        with patch.object(self.document, 'save_titles_and_notes') as mocked_save_titles_and_notes:
            self.document.create_titles_and_notes()

        # THEN save_titles_and_notes should have been called
        self.mocked_client.get_titles_and_notes.assert_called_once_with()
        mocked_save_titles_and_notes.assert_called_once_with('OpenLP', 'This is a note')

    def test_close_presentation(self):
        """
        Test the close_presentation() method
        """
        # GIVEN: A mocked client and mocked remove_doc() method
        # WHEN: close_presentation() is called
        with patch.object(self.controller, 'remove_doc') as mocked_remove_doc:
            self.document.close_presentation()

        # THEN: The presentation should have been closed
        self.mocked_client.close_presentation.assert_called_once_with()
        mocked_remove_doc.assert_called_once_with(self.document)

    def test_is_loaded(self):
        """
        Test the is_loaded() method
        """
        # GIVEN: A mocked client
        self.mocked_client.is_loaded.return_value = True

        # WHEN: is_loaded() is called
        result = self.document.is_loaded()

        # THEN: Then the result should be correct
        assert result is True

    def test_is_active(self):
        """
        Test the is_active() method
        """
        # GIVEN: A mocked client
        self.mocked_client.is_active.return_value = True

        # WHEN: is_active() is called
        result = self.document.is_active()

        # THEN: Then the result should be correct
        assert result is True

    def test_unblank_screen(self):
        """
        Test the unblank_screen() method
        """
        # GIVEN: A mocked client
        self.mocked_client.unblank_screen.return_value = True

        # WHEN: unblank_screen() is called
        result = self.document.unblank_screen()

        # THEN: Then the result should be correct
        self.mocked_client.unblank_screen.assert_called_once_with()
        assert result is True

    def test_blank_screen(self):
        """
        Test the blank_screen() method
        """
        # GIVEN: A mocked client
        self.mocked_client.blank_screen.return_value = True

        # WHEN: blank_screen() is called
        self.document.blank_screen()

        # THEN: Then the result should be correct
        self.mocked_client.blank_screen.assert_called_once_with()

    def test_is_blank(self):
        """
        Test the is_blank() method
        """
        # GIVEN: A mocked client
        self.mocked_client.is_blank.return_value = True

        # WHEN: is_blank() is called
        result = self.document.is_blank()

        # THEN: Then the result should be correct
        assert result is True

    def test_stop_presentation(self):
        """
        Test the stop_presentation() method
        """
        # GIVEN: A mocked client
        self.mocked_client.stop_presentation.return_value = True

        # WHEN: stop_presentation() is called
        self.document.stop_presentation()

        # THEN: Then the result should be correct
        self.mocked_client.stop_presentation.assert_called_once_with()

    @patch('openlp.plugins.presentations.lib.maclocontroller.ScreenList')
    @patch('openlp.plugins.presentations.lib.maclocontroller.Registry')
    def test_start_presentation(self, MockedRegistry, MockedScreenList):
        """
        Test the start_presentation() method
        """
        # GIVEN: a mocked client, and multiple screens
        mocked_screen_list = MagicMock()
        mocked_screen_list.__len__.return_value = 2
        mocked_registry = MagicMock()
        mocked_main_window = MagicMock()
        MockedScreenList.return_value = mocked_screen_list
        MockedRegistry.return_value = mocked_registry
        mocked_screen_list.screen_list = [0, 1]
        mocked_registry.get.return_value = mocked_main_window

        # WHEN: start_presentation() is called
        self.document.start_presentation()

        # THEN: The presentation should be started
        self.mocked_client.start_presentation.assert_called_once_with()
        mocked_registry.get.assert_called_once_with('main_window')
        mocked_main_window.activateWindow.assert_called_once_with()

    def test_get_slide_number(self):
        """
        Test the get_slide_number() method
        """
        # GIVEN: A mocked client
        self.mocked_client.get_slide_number.return_value = 5

        # WHEN: get_slide_number() is called
        result = self.document.get_slide_number()

        # THEN: Then the result should be correct
        assert result == 5

    def test_get_slide_count(self):
        """
        Test the get_slide_count() method
        """
        # GIVEN: A mocked client
        self.mocked_client.get_slide_count.return_value = 8

        # WHEN: get_slide_count() is called
        result = self.document.get_slide_count()

        # THEN: Then the result should be correct
        assert result == 8

    def test_goto_slide(self):
        """
        Test the goto_slide() method
        """
        # GIVEN: A mocked client
        # WHEN: goto_slide() is called
        self.document.goto_slide(3)

        # THEN: Then the result should be correct
        self.mocked_client.goto_slide.assert_called_once_with(3)

    def test_next_step(self):
        """
        Test the next_step() method
        """
        # GIVEN: A mocked client
        # WHEN: next_step() is called
        self.document.next_step()

        # THEN: Then the result should be correct
        self.mocked_client.next_step.assert_called_once_with()

    def test_previous_step(self):
        """
        Test the previous_step() method
        """
        # GIVEN: A mocked client
        # WHEN: previous_step() is called
        self.document.previous_step()

        # THEN: Then the result should be correct
        self.mocked_client.previous_step.assert_called_once_with()

    def test_get_slide_text(self):
        """
        Test the get_slide_text() method
        """
        # GIVEN: A mocked client
        self.mocked_client.get_slide_text.return_value = 'Some slide text'

        # WHEN: get_slide_text() is called
        result = self.document.get_slide_text(1)

        # THEN: Then the result should be correct
        self.mocked_client.get_slide_text.assert_called_once_with(1)
        assert result == 'Some slide text'

    def test_get_slide_notes(self):
        """
        Test the get_slide_notes() method
        """
        # GIVEN: A mocked client
        self.mocked_client.get_slide_notes.return_value = 'This is a note'

        # WHEN: get_slide_notes() is called
        result = self.document.get_slide_notes(2)

        # THEN: Then the result should be correct
        self.mocked_client.get_slide_notes.assert_called_once_with(2)
        assert result == 'This is a note'