# -*- coding: utf-8 -*-
#
# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
# All rights reserved.
#
# This code is licensed under the MIT License.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files(the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions :
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import importlib
import logging
import sys
import types
from unittest import mock
from unittest.mock import Mock, call, ANY

import pytest

import apprise
from apprise.plugins.NotifyGnome import GnomeUrgency, NotifyGnome
from helpers import reload_plugin

# Disable logging for a cleaner testing output
logging.disable(logging.CRITICAL)


def setup_glib_environment():
    """
    Setup a heavily mocked Glib environment.
    """

    # Our module base
    gi_name = 'gi'

    # First we do an import without the gi library available to ensure
    # we can handle cases when the library simply isn't available

    if gi_name in sys.modules:
        # Test cases where the gi library exists; we want to remove it
        # for the purpose of testing and capture the handling of the
        # library when it is missing
        del sys.modules[gi_name]
        reload_plugin('NotifyGnome')

    # We need to fake our gnome environment for testing purposes since
    # the gi library isn't available on CI
    gi = types.ModuleType(gi_name)
    gi.repository = types.ModuleType(gi_name + '.repository')
    gi.module = types.ModuleType(gi_name + '.module')

    mock_pixbuf = mock.Mock()
    mock_notify = mock.Mock()

    gi.repository.GdkPixbuf = \
        types.ModuleType(gi_name + '.repository.GdkPixbuf')
    gi.repository.GdkPixbuf.Pixbuf = mock_pixbuf
    gi.repository.Notify = mock.Mock()
    gi.repository.Notify.init.return_value = True
    gi.repository.Notify.Notification = mock_notify

    # Emulate require_version function:
    gi.require_version = mock.Mock(
        name=gi_name + '.require_version')

    # Force the fake module to exist
    sys.modules[gi_name] = gi
    sys.modules[gi_name + '.repository'] = gi.repository
    sys.modules[gi_name + '.repository.Notify'] = gi.repository.Notify

    # Notify Object
    notify_obj = mock.Mock()
    notify_obj.set_urgency.return_value = True
    notify_obj.set_icon_from_pixbuf.return_value = True
    notify_obj.set_image_from_pixbuf.return_value = True
    notify_obj.show.return_value = True
    mock_notify.new.return_value = notify_obj
    mock_pixbuf.new_from_file.return_value = True

    # When patching something which has a side effect on the module-level code
    # of a plugin, make sure to reload it.
    current_module = sys.modules[__name__]
    reload_plugin('NotifyGnome', replace_in=current_module)


@pytest.fixture
def glib_environment():
    """
    Fixture to provide a mocked Glib environment to test case functions.
    """
    setup_glib_environment()


@pytest.fixture
def obj(glib_environment):
    """
    Fixture to provide a mocked Apprise instance.
    """

    # Create our instance
    obj = apprise.Apprise.instantiate('gnome://', suppress_exceptions=False)
    assert obj is not None
    assert isinstance(obj, NotifyGnome) is True

    # Set our duration to 0 to speed up timeouts (for testing)
    obj.duration = 0

    # Check that it found our mocked environments
    assert obj.enabled is True

    return obj


def test_plugin_gnome_general_success(obj):
    """
    NotifyGnome() general checks
    """

    # Test url() call
    assert isinstance(obj.url(), str) is True

    # test notifications
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True

    # test notification without a title
    assert obj.notify(title='', body='body',
                      notify_type=apprise.NotifyType.INFO) is True


def test_plugin_gnome_image_success(glib_environment):
    """
    Verify using the `image` query argument works as intended.
    """

    obj = apprise.Apprise.instantiate(
        'gnome://_/?image=True', suppress_exceptions=False)
    assert isinstance(obj, NotifyGnome) is True
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True

    obj = apprise.Apprise.instantiate(
        'gnome://_/?image=False', suppress_exceptions=False)
    assert isinstance(obj, NotifyGnome) is True
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True


def test_plugin_gnome_priority(glib_environment):
    """
    Verify correctness of the `priority` query argument.
    """

    # Test Priority (alias of urgency)
    obj = apprise.Apprise.instantiate(
        'gnome://_/?priority=invalid', suppress_exceptions=False)
    assert isinstance(obj, NotifyGnome) is True
    assert obj.urgency == 1
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True

    obj = apprise.Apprise.instantiate(
        'gnome://_/?priority=high', suppress_exceptions=False)
    assert isinstance(obj, NotifyGnome) is True
    assert obj.urgency == 2
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True

    obj = apprise.Apprise.instantiate(
        'gnome://_/?priority=2', suppress_exceptions=False)
    assert isinstance(obj, NotifyGnome) is True
    assert obj.urgency == 2
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True


def test_plugin_gnome_urgency(glib_environment):
    """
    Verify correctness of the `urgency` query argument.
    """

    # Test Urgeny
    obj = apprise.Apprise.instantiate(
        'gnome://_/?urgency=invalid', suppress_exceptions=False)
    assert obj.urgency == 1
    assert isinstance(obj, NotifyGnome) is True
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True

    obj = apprise.Apprise.instantiate(
        'gnome://_/?urgency=high', suppress_exceptions=False)
    assert obj.urgency == 2
    assert isinstance(obj, NotifyGnome) is True
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True

    obj = apprise.Apprise.instantiate(
        'gnome://_/?urgency=2', suppress_exceptions=False)
    assert isinstance(obj, NotifyGnome) is True
    assert obj.urgency == 2
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True


def test_plugin_gnome_parse_configuration(obj):
    """
    Verify configuration parsing works correctly.
    """

    # Test configuration parsing
    content = """
    urls:
      - gnome://:
          - priority: 0
            tag: gnome_int low
          - priority: "0"
            tag: gnome_str_int low
          - priority: low
            tag: gnome_str low
          - urgency: 0
            tag: gnome_int low
          - urgency: "0"
            tag: gnome_str_int low
          - urgency: low
            tag: gnome_str low

          # These will take on normal (default) urgency
          - priority: invalid
            tag: gnome_invalid
          - urgency: invalid
            tag: gnome_invalid

      - gnome://:
          - priority: 2
            tag: gnome_int high
          - priority: "2"
            tag: gnome_str_int high
          - priority: high
            tag: gnome_str high
          - urgency: 2
            tag: gnome_int high
          - urgency: "2"
            tag: gnome_str_int high
          - urgency: high
            tag: gnome_str high
    """

    # Create ourselves a config object
    ac = apprise.AppriseConfig()
    assert ac.add_config(content=content) is True

    aobj = apprise.Apprise()

    # Add our configuration
    aobj.add(ac)

    # We should be able to read our 14 servers from that
    # 6x low
    # 6x high
    # 2x invalid (so takes on normal urgency)
    assert len(ac.servers()) == 14
    assert len(aobj) == 14
    assert len([x for x in aobj.find(tag='low')]) == 6
    for s in aobj.find(tag='low'):
        assert s.urgency == GnomeUrgency.LOW

    assert len([x for x in aobj.find(tag='high')]) == 6
    for s in aobj.find(tag='high'):
        assert s.urgency == GnomeUrgency.HIGH

    assert len([x for x in aobj.find(tag='gnome_str')]) == 4
    assert len([x for x in aobj.find(tag='gnome_str_int')]) == 4
    assert len([x for x in aobj.find(tag='gnome_int')]) == 4

    assert len([x for x in aobj.find(tag='gnome_invalid')]) == 2
    for s in aobj.find(tag='gnome_invalid'):
        assert s.urgency == GnomeUrgency.NORMAL


def test_plugin_gnome_missing_icon(mocker, obj):
    """
    Verify the notification will be submitted, even if loading the icon fails.
    """

    # Inject error when loading icon.
    gi = importlib.import_module("gi")
    gi.repository.GdkPixbuf.Pixbuf.new_from_file.side_effect = \
        AttributeError("Something failed")

    logger: Mock = mocker.spy(obj, "logger")
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is True
    assert logger.mock_calls == [
        call.warning('Could not load notification icon (%s).', ANY),
        call.debug('Gnome Exception: Something failed'),
        call.info('Sent Gnome notification.'),
    ]


def test_plugin_gnome_disabled_plugin(obj):
    """
    Verify notification will not be submitted if plugin is disabled.
    """
    obj.enabled = False
    assert obj.notify(title='title', body='body',
                      notify_type=apprise.NotifyType.INFO) is False


def test_plugin_gnome_set_urgency():
    """
    Test the setting of an urgency, through `priority` keyword argument.
    """
    NotifyGnome(priority=0)


def test_plugin_gnome_gi_croaks():
    """
    Verify notification fails when `gi.require_version()` croaks.
    """

    # Make `require_version` function raise an error.
    try:
        gi = importlib.import_module("gi")
    except ModuleNotFoundError:
        raise pytest.skip("`gi` package not installed")
    gi.require_version.side_effect = ValueError("Something failed")

    # When patching something which has a side effect on the module-level code
    # of a plugin, make sure to reload it.
    current_module = sys.modules[__name__]
    reload_plugin('NotifyGnome', replace_in=current_module)

    # Create instance.
    obj = apprise.Apprise.instantiate('gnome://', suppress_exceptions=False)

    # The notifier is marked disabled.
    assert obj is None


def test_plugin_gnome_notify_croaks(mocker, obj):
    """
    Fail gracefully if underlying object croaks for whatever reason.
    """

    # Inject an error when invoking `gi.repository.Notify`.
    mocker.patch('gi.repository.Notify.Notification.new',
                 side_effect=AttributeError("Something failed"))

    logger: Mock = mocker.spy(obj, "logger")
    assert obj.notify(
        title='title', body='body',
        notify_type=apprise.NotifyType.INFO) is False
    assert logger.mock_calls == [
        call.warning('Failed to send Gnome notification.'),
        call.debug('Gnome Exception: Something failed'),
    ]