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

###############################################################################
# OpenLP - Open Source Lyrics Projection                                      #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2018 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; version 2 of the License.                              #
#                                                                             #
# 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, write to the Free Software Foundation, Inc., 59  #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
###############################################################################
from unittest import TestCase

from openlp.core.state import State
from openlp.core.common.registry import Registry
from openlp.core.lib.plugin import PluginStatus

from tests.helpers.testmixin import TestMixin

"""
Test the Status class.
"""


class TestState(TestCase, TestMixin):
    """
    Test the Server Class used to check if OpenLP is running.
    """
    def setUp(self):
        Registry.create()

    def tearDown(self):
        pass

    def test_add_service(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new service
        State().add_service("test", 1, PluginStatus.Active)

        # THEN I have a saved service
        assert len(State().modules) == 1

    def test_add_service_multiple(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new service twice
        State().add_service("test", 1, PluginStatus.Active)
        State().add_service("test", 1, PluginStatus.Active)

        # THEN I have a single saved service
        assert len(State().modules) == 1

    def test_add_service_multiple_depend(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new service twice
        State().add_service("test", 1, 1, PluginStatus.Active)
        State().add_service("test1", 1, 1, PluginStatus.Active, "test")
        State().add_service("test1", 1, 1, PluginStatus.Active, "test")

        # THEN I have still have a single saved service and one dependency
        assert len(State().modules) == 2
        assert len(State().modules['test'].required_by) == 1

    def test_add_service_multiple_depends(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new service twice
        State().add_service("test", 1, 1, PluginStatus.Active)
        State().add_service("test1", 1, 1, PluginStatus.Active, "test")
        State().add_service("test2", 1, 1, PluginStatus.Active, "test")

        # THEN I have a 3 modules and 2 dependencies
        assert len(State().modules) == 3
        assert len(State().modules['test'].required_by) == 2

    def test_active_service(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new service which is Active
        State().add_service("test", 1, 1, PluginStatus.Active)

        # THEN I have a single saved service
        assert State().is_module_active('test') is True

    def test_inactive_service(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new service which is Inactive
        State().add_service("test", 1, 1, PluginStatus.Inactive)

        # THEN I have a single saved service
        assert State().is_module_active('test') is False

    def test_basic_preconditions_fail(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new services with dependencies and a failed pre condition
        State().add_service("test", 1, 1, PluginStatus.Inactive)
        State().add_service("test2", 1, 1, PluginStatus.Inactive)
        State().add_service("test1", 1, 1, PluginStatus.Inactive, 'test')
        State().update_pre_conditions('test', False)

        # THEN correct the state when I flush the preconditions
        assert State().modules['test'].pass_preconditions is False
        assert State().modules['test2'].pass_preconditions is True
        assert State().modules['test1'].pass_preconditions is True
        State().flush_preconditions()
        assert State().modules['test'].pass_preconditions is False
        assert State().modules['test2'].pass_preconditions is True
        assert State().modules['test1'].pass_preconditions is False

    def test_basic_preconditions_pass(self):
        # GIVEN a new state
        State().load_settings()

        # WHEN I add a new services with dependencies and a failed pre condition
        State().add_service("test", 1, 1, PluginStatus.Inactive)
        State().add_service("test2", 1, 1, PluginStatus.Inactive)
        State().add_service("test1", 1, 1, PluginStatus.Inactive, 'test')
        State().update_pre_conditions('test', True)

        # THEN correct the state when I flush the preconditions
        assert State().modules['test'].pass_preconditions is True
        assert State().modules['test2'].pass_preconditions is False
        assert State().modules['test1'].pass_preconditions is False
        State().flush_preconditions()
        assert State().modules['test'].pass_preconditions is True
        assert State().modules['test2'].pass_preconditions is False
        assert State().modules['test1'].pass_preconditions is True