# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
# ---------------------------------------------------------------------- #
# Copyright (c) 2008-2019 OpenLP Developers                              #
# ---------------------------------------------------------------------- #
# 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.                           #
#                                                                        #
# You should have received a copy of the GNU General Public License      #
# along with this program.  If not, see <https://www.gnu.org/licenses/>. #
##########################################################################
"""
Package to test the openlp.core.ui package.
"""
from unittest import TestCase
from unittest.mock import MagicMock, patch

from PyQt5 import QtTest, QtWidgets

from openlp.core.common.registry import Registry
from openlp.core.ui.filerenameform import FileRenameForm
from tests.helpers.testmixin import TestMixin


class TestStartFileRenameForm(TestCase, TestMixin):

    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 = FileRenameForm()

    def tearDown(self):
        """
        Delete all the C++ objects at the end so that we don't have a segfault
        """
        del self.form
        del self.main_window

    def test_window_title(self):
        """
        Test the windowTitle of the FileRenameDialog
        """
        # GIVEN: A mocked QDialog.exec() method
        with patch('PyQt5.QtWidgets.QDialog.exec'):

            # WHEN: The form is executed with no args
            self.form.exec()

            # THEN: the window title is set correctly
            assert self.form.windowTitle() == 'File Rename', 'The window title should be "File Rename"'

            # WHEN: The form is executed with False arg
            self.form.exec(False)

            # THEN: the window title is set correctly
            assert self.form.windowTitle() == 'File Rename', 'The window title should be "File Rename"'

            # WHEN: The form is executed with True arg
            self.form.exec(True)

            # THEN: the window title is set correctly
            assert self.form.windowTitle() == 'File Copy', 'The window title should be "File Copy"'

    def test_line_edit_focus(self):
        """
        Regression test for bug1067251
        Test that the file_name_edit setFocus has called with True when executed
        """
        # GIVEN: A mocked QDialog.exec() method and mocked file_name_edit.setFocus() method.
        with patch('PyQt5.QtWidgets.QDialog.exec'):
            mocked_set_focus = MagicMock()
            self.form.file_name_edit.setFocus = mocked_set_focus

            # WHEN: The form is executed
            self.form.exec()

            # THEN: the setFocus method of the file_name_edit has been called with True
            mocked_set_focus.assert_called_with()

    def test_file_name_validation(self):
        """
        Test the file_name_edit validation
        """
        # GIVEN: QLineEdit with a validator set with illegal file name characters.

        # WHEN: 'Typing' a string containing invalid file characters.
        QtTest.QTest.keyClicks(self.form.file_name_edit, r'I/n\\v?a*l|i<d> \F[i\l]e" :N+a%me')

        # THEN: The text in the QLineEdit should be the same as the input string with the invalid characters filtered
        # out.
        assert self.form.file_name_edit.text() == 'Invalid File Name'