#  
# ============LICENSE_START========================================== 
# org.onap.vvp/engagementmgr
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# Copyright © 2017 AT&T Intellectual Property. All rights reserved.
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# Unless otherwise specified, all software contained herein is licensed
# under the Apache License, Version 2.0 (the “License”);
# you may not use this software except in compliance with the License.
# You may obtain a copy of the License at
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#             http://www.apache.org/licenses/LICENSE-2.0
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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# Unless otherwise specified, all documentation contained herein is licensed
# under the Creative Commons License, Attribution 4.0 Intl. (the “License”);
# you may not use this documentation except in compliance with the License.
# You may obtain a copy of the License at
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#             https://creativecommons.org/licenses/by/4.0/
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# Unless required by applicable law or agreed to in writing, documentation
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# ============LICENSE_END============================================
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# ECOMP is a trademark and service mark of AT&T Intellectual Property.
from engagementmanager.models import Notification, IceUserProfile
from engagementmanager.serializers import ThinNotificationModelSerializer
from engagementmanager.service.logging_service import LoggingServiceFactory

logger = LoggingServiceFactory.get_logger()


def num_of_notifications_for_user(user_uuid):
    user = IceUserProfile.objects.get(uuid=user_uuid)
    amountOfnotificationForUser = Notification.objects.filter(user=user, is_read=False).filter().count()
    return amountOfnotificationForUser


def pull_recent_notifications(user_uuid, offset, limit):
    ModifiedNotificationsSet = []
    logger.debug("Pulling unread notifications from DB")
    user = IceUserProfile.objects.get(uuid=user_uuid)
    notificationsList = Notification.objects.filter(user=user).order_by('is_read', '-activity__create_time')[int(offset):int(offset) + int(limit)]
    num_of_objects = Notification.objects.filter(user=user).count()
    for notif in notificationsList:
        serializedNotification = ThinNotificationModelSerializer(notif).data
        ModifiedNotificationsSet.append(serializedNotification)
        notif.is_read = True
        notif.save()
    return ModifiedNotificationsSet, num_of_objects


def reset_num_of_notifications_for_user(user_uuid):
    user = IceUserProfile.objects.get(uuid=user_uuid)
    notificationForUser = Notification.objects.filter(user=user, is_read=False)
    for notif in notificationForUser:
        notif.is_read = True
        notif.save()