# -*- coding: utf-8 -*-
#
# Copyright (C) 2020 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 six
import pytest
import mock
import requests
from helpers import AppriseURLTester
from apprise import plugins

from json import dumps
from datetime import datetime

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

# Our Testing URLs
apprise_url_tests = (
    ##################################
    # NotifyGitter
    ##################################
    ('gitter://', {
        'instance': TypeError,
    }),
    ('gitter://:@/', {
        'instance': TypeError,
    }),
    # Invalid Token Length
    ('gitter://%s' % ('a' * 12), {
        'instance': TypeError,
    }),
    # Token specified but no channel
    ('gitter://%s' % ('a' * 40), {
        'instance': TypeError,
    }),
    # Token + channel
    ('gitter://%s/apprise' % ('b' * 40), {
        'instance': plugins.NotifyGitter,
        'response': False,
    }),
    # include image in post
    ('gitter://%s/apprise?image=Yes' % ('c' * 40), {
        'instance': plugins.NotifyGitter,
        'response': False,

        # Our expected url(privacy=True) startswith() response:
        'privacy_url': 'gitter://c...c/apprise',
    }),
    # Don't include image in post (this is the default anyway)
    ('gitter://%s/apprise?image=Yes' % ('d' * 40), {
        'instance': plugins.NotifyGitter,
        'response': False,
        # don't include an image by default
        'include_image': False,
    }),
    # Don't include image in post (this is the default anyway)
    ('gitter://%s/apprise?image=No' % ('e' * 40), {
        'instance': plugins.NotifyGitter,
        'response': False,
    }),
    ('gitter://%s/apprise' % ('f' * 40), {
        'instance': plugins.NotifyGitter,
        # force a failure
        'response': False,
        'requests_response_code': requests.codes.internal_server_error,
    }),
    ('gitter://%s/apprise' % ('g' * 40), {
        'instance': plugins.NotifyGitter,
        # throw a bizzare code forcing us to fail to look it up
        'response': False,
        'requests_response_code': 999,
    }),
    ('gitter://%s/apprise' % ('h' * 40), {
        'instance': plugins.NotifyGitter,
        # Throws a series of connection and transfer exceptions when this flag
        # is set and tests that we gracfully handle them
        'test_requests_exceptions': True,
    }),
)


def test_plugin_gitter_urls():
    """
    NotifyGitter() Apprise URLs

    """

    # Run our general tests
    AppriseURLTester(tests=apprise_url_tests).run_all()


@mock.patch('requests.get')
@mock.patch('requests.post')
def test_plugin_gitter_general(mock_post, mock_get):
    """
    NotifyGitter() General Tests

    """
    # Disable Throttling to speed testing
    plugins.NotifyBase.request_rate_per_sec = 0

    # Generate a valid token (40 characters)
    token = 'a' * 40

    response_obj = [
        {
            'noindex': False,
            'oneToOne': False,
            'avatarUrl': 'https://path/to/avatar/url',
            'url': '/apprise-notifications/community',
            'public': True,
            'tags': [],
            'lurk': False,
            'uri': 'apprise-notifications/community',
            'lastAccessTime': '2019-03-25T00:12:28.144Z',
            'topic': '',
            'roomMember': True,
            'groupId': '5c981cecd73408ce4fbbad2f',
            'githubType': 'REPO_CHANNEL',
            'unreadItems': 0,
            'mentions': 0,
            'security': 'PUBLIC',
            'userCount': 1,
            'id': '5c981cecd73408ce4fbbad31',
            'name': 'apprise/community',
        },
    ]

    # Epoch time:
    epoch = datetime.utcfromtimestamp(0)

    request = mock.Mock()
    request.content = dumps(response_obj)
    request.status_code = requests.codes.ok
    request.headers = {
        'X-RateLimit-Reset': (datetime.utcnow() - epoch).total_seconds(),
        'X-RateLimit-Remaining': 1,
    }

    # Prepare Mock
    mock_get.return_value = request
    mock_post.return_value = request

    # Variation Initializations
    obj = plugins.NotifyGitter(token=token, targets='apprise')
    assert isinstance(obj, plugins.NotifyGitter) is True
    assert isinstance(obj.url(), six.string_types) is True

    # apprise room was found
    assert obj.send(body="test") is True

    # Change our status code and try again
    request.status_code = 403
    assert obj.send(body="test") is False
    assert obj.ratelimit_remaining == 1

    # Return the status
    request.status_code = requests.codes.ok
    # Force a reset
    request.headers['X-RateLimit-Remaining'] = 0
    # behind the scenes, it should cause us to update our rate limit
    assert obj.send(body="test") is True
    assert obj.ratelimit_remaining == 0

    # This should cause us to block
    request.headers['X-RateLimit-Remaining'] = 10
    assert obj.send(body="test") is True
    assert obj.ratelimit_remaining == 10

    # Handle cases where we simply couldn't get this field
    del request.headers['X-RateLimit-Remaining']
    assert obj.send(body="test") is True
    # It remains set to the last value
    assert obj.ratelimit_remaining == 10

    # Reset our variable back to 1
    request.headers['X-RateLimit-Remaining'] = 1

    # Handle cases where our epoch time is wrong
    del request.headers['X-RateLimit-Reset']
    assert obj.send(body="test") is True

    # Return our object, but place it in the future forcing us to block
    request.headers['X-RateLimit-Reset'] = \
        (datetime.utcnow() - epoch).total_seconds() + 1
    request.headers['X-RateLimit-Remaining'] = 0
    obj.ratelimit_remaining = 0
    assert obj.send(body="test") is True

    # Return our object, but place it in the future forcing us to block
    request.headers['X-RateLimit-Reset'] = \
        (datetime.utcnow() - epoch).total_seconds() - 1
    request.headers['X-RateLimit-Remaining'] = 0
    obj.ratelimit_remaining = 0
    assert obj.send(body="test") is True

    # Return our limits to always work
    request.headers['X-RateLimit-Reset'] = \
        (datetime.utcnow() - epoch).total_seconds()
    request.headers['X-RateLimit-Remaining'] = 1
    obj.ratelimit_remaining = 1

    # Cause content response to be None
    request.content = None
    assert obj.send(body="test") is True

    # Invalid JSON
    request.content = '{'
    assert obj.send(body="test") is True

    # Return it to a parseable string
    request.content = '{}'

    # Support the 'to' as a target
    results = plugins.NotifyGitter.parse_url(
        'gitter://{}?to={}'.format(token, 'apprise'))
    assert isinstance(results, dict) is True
    assert 'apprise' in results['targets']

    # cause a json parsing issue now
    response_obj = None
    assert obj.send(body="test") is True

    response_obj = '{'
    assert obj.send(body="test") is True

    # Variation Initializations
    obj = plugins.NotifyGitter(token=token, targets='apprise')
    assert isinstance(obj, plugins.NotifyGitter) is True
    assert isinstance(obj.url(), six.string_types) is True
    # apprise room was not found
    assert obj.send(body="test") is False

    # Test exception handling
    mock_post.side_effect = \
        requests.ConnectionError(0, 'requests.ConnectionError()')

    # Create temporary _room_mapping object so we will find the apprise
    # channel on our second call to send()
    obj._room_mapping = {
        'apprise': {
            'id': '5c981cecd73408ce4fbbad31',
            'uri': 'apprise-notifications/community',
        }
    }
    assert obj.send(body='test body', title='test title') is False


def test_plugin_gitter_edge_cases():
    """
    NotifyGitter() Edge Cases

    """
    # Define our channels
    targets = ['apprise']

    # Initializes the plugin with an invalid token
    with pytest.raises(TypeError):
        plugins.NotifyGitter(token=None, targets=targets)
    # Whitespace also acts as an invalid token value
    with pytest.raises(TypeError):
        plugins.NotifyGitter(token="   ", targets=targets)
