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

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
# ---------------------------------------------------------------------- #
# Copyright (c) 2008-2020 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.plugins.songs.forms.editsongform package.
"""
import pytest
from unittest.mock import MagicMock

from PyQt5 import QtWidgets

from openlp.core.common.i18n import UiStrings
from openlp.core.common.registry import Registry
from openlp.plugins.songs.forms.editsongform import EditSongForm


@pytest.yield_fixture()
def form(settings):
    main_window = QtWidgets.QMainWindow()
    Registry().register('main_window', main_window)
    Registry().register('theme_manager', MagicMock())
    frm = EditSongForm(MagicMock(), main_window, MagicMock())
    yield frm
    del frm
    del main_window


def test_ui_defaults(form):
    """
    Test that the EditSongForm defaults are correct
    """
    assert form.verse_edit_button.isEnabled() is False, 'The verse edit button should not be enabled'
    assert form.verse_delete_button.isEnabled() is False, 'The verse delete button should not be enabled'
    assert form.author_remove_button.isEnabled() is False, 'The author remove button should not be enabled'
    assert form.topic_remove_button.isEnabled() is False, 'The topic remove button should not be enabled'


def test_verse_order_no_warning(form):
    """
    Test if the verse order warning is not shown
    """
    # GIVEN: Mocked methods.
    given_verse_order = 'V1 V2'
    form.verse_list_widget.rowCount = MagicMock(return_value=2)
    # Mock out the verse.
    first_verse = MagicMock()
    first_verse.data.return_value = 'V1'
    second_verse = MagicMock()
    second_verse.data.return_value = 'V2'
    form.verse_list_widget.item = MagicMock(side_effect=[first_verse, second_verse])
    form._extract_verse_order = MagicMock(return_value=given_verse_order.split())

    # WHEN: Call the method.
    form.on_verse_order_text_changed(given_verse_order)

    # THEN: No text should be shown.
    assert form.warning_label.text() == '', 'There should be no warning.'


def test_verse_order_incomplete_warning(form):
    """
    Test if the verse-order-incomple warning is shown
    """
    # GIVEN: Mocked methods.
    given_verse_order = 'V1'
    form.verse_list_widget.rowCount = MagicMock(return_value=2)
    # Mock out the verse.
    first_verse = MagicMock()
    first_verse.data.return_value = 'V1'
    second_verse = MagicMock()
    second_verse.data.return_value = 'V2'
    form.verse_list_widget.item = MagicMock(side_effect=[first_verse, second_verse])
    form._extract_verse_order = MagicMock(return_value=[given_verse_order])

    # WHEN: Call the method.
    form.on_verse_order_text_changed(given_verse_order)

    # THEN: The verse-order-incomplete text should be shown.
    assert form.warning_label.text() == form.not_all_verses_used_warning, \
        'The verse-order-incomplete warning should be shown.'


def test_bug_1170435(form):
    """
    Regression test for bug 1170435 (test if "no verse order" message is shown)
    """
    # GIVEN: Mocked methods.
    given_verse_order = ''
    form.verse_list_widget.rowCount = MagicMock(return_value=1)
    # Mock out the verse. (We want a verse type to be returned).
    mocked_verse = MagicMock()
    mocked_verse.data.return_value = 'V1'
    form.verse_list_widget.item = MagicMock(return_value=mocked_verse)
    form._extract_verse_order = MagicMock(return_value=[])
    form.verse_order_edit.text = MagicMock(return_value=given_verse_order)
    # WHEN: Call the method.
    form.on_verse_order_text_changed(given_verse_order)

    # THEN: The no-verse-order message should be shown.
    assert form.warning_label.text() == form.no_verse_order_entered_warning,  \
        'The no-verse-order message should be shown.'


def test_bug_1404967(form):
    """
    Test for CCLI label showing correct text
    """
    # GIVEN; Mocked methods
    # THEN: CCLI label should be CCLI song label
    assert form.ccli_label.text() is not UiStrings().CCLINumberLabel, \
        'CCLI label should not be "{}"'.format(UiStrings().CCLINumberLabel)
    assert form.ccli_label.text() == UiStrings().CCLISongNumberLabel, \
        'CCLI label text should be "{}"'.format(UiStrings().CCLISongNumberLabel)


def test_verse_order_lowercase(form):
    """
    Test that entering a verse order in lowercase automatically converts to uppercase
    """
    # GIVEN; Mocked methods

    # WHEN: We enter a verse order in lowercase
    form.verse_order_edit.setText('v1 v2 c1 v3 c1 v4 c1')
    # Need to manually trigger this method as it is only triggered by manual input
    form.on_verse_order_text_changed(form.verse_order_edit.text())

    # THEN: The verse order should be converted to uppercase
    assert form.verse_order_edit.text() == 'V1 V2 C1 V3 C1 V4 C1'