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

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
# ---------------------------------------------------------------------- #
# Copyright (c) 2008-2020 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.                                    #
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# 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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"""
Tests for choosegroupform from the openlp.plugins.images.forms package.
"""

from unittest import TestCase
from unittest.mock import MagicMock

from PyQt5 import QtWidgets

from openlp.core.common.registry import Registry
from openlp.plugins.images.forms.choosegroupform import ChooseGroupForm
from tests.helpers.testmixin import TestMixin


class TestImageChooseGroupForm(TestCase, TestMixin):
    """
    Test the ChooseGroupForm class
    """
    def setUp(self):
        """
        Create the UI
        """
        Registry.create()
        self.setup_application()
        self.main_window = QtWidgets.QMainWindow()
        Registry().register('main_window', self.main_window)
        self.form = ChooseGroupForm(self.main_window)

    def tearDown(self):
        """
        Cleanup
        """
        del self.form
        del self.main_window

    def test_no_group_selected_by_default(self):
        """
        Tests that the No Group option is the default selection
        """
        assert self.form.nogroup_radio_button.isChecked()

    def test_provided_group_is_selected(self):
        """
        Tests preselected group initialization
        """
        # GIVEN: There are some existing groups
        QtWidgets.QDialog.exec = MagicMock(return_value=QtWidgets.QDialog.Accepted)
        self.form.group_combobox.addItem('Group 1', 0)
        self.form.group_combobox.addItem('Group 2', 1)

        # WHEN: The form is displayed with preselected group index 1
        self.form.exec(1)

        # THEN: The Existing Group should be selected along with the radio button
        assert self.form.group_combobox.currentIndex() == 1
        assert self.form.existing_radio_button.isChecked()

    def test_auto_select_existing_group_on_combo_selection(self):
        """
        Tests that the Existing Group option becomes selected when changing the combobox
        """
        # GIVEN: No preselected group was provided during initialization
        assert not self.form.existing_radio_button.isChecked()

        # WHEN: An existing group is selected from the combo box
        self.form.on_group_combobox_selected(0)

        # THEN: The Existing Group radio button should also be selected
        assert self.form.existing_radio_button.isChecked()

    def test_auto_select_new_group_on_edit(self):
        """
        Tests that the New Group option becomes selected when changing the text field
        """
        # GIVEN: The New Group option has not already been selected
        assert not self.form.new_radio_button.isChecked()

        # WHEN: The user enters text into the new group name text field
        self.form.on_new_group_edit_changed('Test Group')

        # THEN: The New Group radio button should also be selected
        assert self.form.new_radio_button.isChecked()