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

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
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# 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,        #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          #
# GNU General Public License for more details.                           #
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"""
Interface tests to test the openlp.core.projectors.editform.ProjectorEditForm()
class and methods.
"""
import os
from unittest import TestCase
from unittest.mock import patch

from openlp.core.common.registry import Registry
from openlp.core.common.settings import Settings
from openlp.core.projectors.db import Projector, ProjectorDB
from openlp.core.projectors.editform import ProjectorEditForm
from tests.helpers.testmixin import TestMixin
from tests.resources.projector.data import TEST1_DATA, TEST_DB


class TestProjectorEditForm(TestCase, TestMixin):
    """
    Test the methods in the ProjectorEditForm class
    """
    def setUp(self):
        """
        Create the UI and setup necessary options

        :return: None
        """
        self.setup_application()
        self.build_settings()
        Registry.create()
        Registry().register('settings', Settings())
        with patch('openlp.core.projectors.db.init_url') as mocked_init_url:
            if os.path.exists(TEST_DB):
                os.unlink(TEST_DB)
            mocked_init_url.return_value = 'sqlite:///' + TEST_DB
            self.projectordb = ProjectorDB()
            self.projector_form = ProjectorEditForm(projectordb=self.projectordb)

    def tearDown(self):
        """
        Close database session.
        Delete all C++ objects at end so we don't segfault.

        :return: None
        """
        self.projectordb.session.close()
        del self.projector_form
        self.destroy_settings()

    @patch('openlp.core.projectors.editform.QtWidgets.QDialog.exec')
    def test_edit_form_add_projector(self, mocked_exec):
        """
        Test projector edit form with no parameters creates a new entry.

        :return: None
        """
        # GIVEN: Mocked setup
        # WHEN: Calling edit form with no parameters
        self.projector_form.exec()
        item = self.projector_form.projector

        # THEN: Should be creating a new instance
        self.assertTrue(self.projector_form.new_projector,
                        'Projector edit form should be marked as a new entry')
        self.assertTrue((item.ip is None and item.name is None),
                        'Projector edit form should have a new Projector() instance to edit')

    @patch('openlp.core.projectors.editform.QtWidgets.QDialog.exec')
    def test_edit_form_edit_projector(self, mocked_exec):
        """
        Test projector edit form with existing projector entry

        :return:
        """
        # GIVEN: Mocked setup
        # WHEN: Calling edit form with existing projector instance
        self.projector_form.exec(projector=Projector(**TEST1_DATA))
        item = self.projector_form.projector

        # THEN: Should be editing an existing entry
        self.assertFalse(self.projector_form.new_projector,
                         'Projector edit form should be marked as existing entry')
        self.assertTrue((item.ip is TEST1_DATA['ip'] and item.name is TEST1_DATA['name']),
                        'Projector edit form should have TEST1_DATA() instance to edit')