# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2014, 2015, 2016 CERN.
#
# Invenio 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 2 of the
# License, or (at your option) any later version.
#
# Invenio 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 Invenio; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307, USA.
#
# In applying this license, CERN does not
# waive the privileges and immunities granted to it by virtue of its status
# as an Intergovernmental Organization or submit itself to any jurisdiction.

"""Record ID provider."""

from __future__ import absolute_import, print_function

from ..models import PIDStatus, RecordIdentifier
from .base import BaseProvider


class RecordIdProvider(BaseProvider):
    """Record identifier provider."""

    pid_type = 'recid'
    """Type of persistent identifier."""

    pid_provider = None
    """Provider name.

    The provider name is not recorded in the PID since the provider does not
    provide any additional features besides creation of record ids.
    """

    default_status = PIDStatus.RESERVED
    """Record IDs are by default registered immediately.

    Default: :attr:`invenio_pidstore.models.PIDStatus.RESERVED`
    """

    @classmethod
    def create(cls, object_type=None, object_uuid=None, **kwargs):
        """Create a new record identifier.

        Note: if the object_type and object_uuid values are passed, then the
        PID status will be automatically setted to
        :attr:`invenio_pidstore.models.PIDStatus.REGISTERED`.

        :param object_type: The object type. (Default: None.)
        :param object_uuid: The object identifier. (Default: None).
        :param kwargs: You specify the pid_value.
        """
        # Request next integer in recid sequence.
        assert 'pid_value' not in kwargs
        kwargs['pid_value'] = str(RecordIdentifier.next())
        kwargs.setdefault('status', cls.default_status)
        if object_type and object_uuid:
            kwargs['status'] = PIDStatus.REGISTERED
        return super(RecordIdProvider, cls).create(
            object_type=object_type, object_uuid=object_uuid, **kwargs)
