# Copyright (c) 2014 OpenStack Foundation.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, 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.

__all__ = [
    'list_api_opts',
    'list_registry_opts',
    'list_scrubber_opts',
    'list_cache_opts',
    'list_manage_opts'
]

import copy
import itertools

import glance.api.middleware.context
import glance.api.versions
import glance.common.config
import glance.common.location_strategy
import glance.common.location_strategy.store_type
import glance.common.property_utils
import glance.common.rpc
import glance.common.wsgi
import glance.image_cache
import glance.image_cache.drivers.sqlite
import glance.notifier
import glance.openstack.common.lockutils
import glance.openstack.common.log
import glance.openstack.common.policy
import glance.registry
import glance.registry.client
import glance.registry.client.v1.api
import glance.scrubber


_global_opt_lists = [
    glance.openstack.common.log.common_cli_opts,
    glance.openstack.common.log.logging_cli_opts,
]
_api_opts = [
    (None, list(itertools.chain(*(_global_opt_lists + [
        glance.api.middleware.context.context_opts,
        glance.api.versions.versions_opts,
        glance.common.config.common_opts,
        glance.common.location_strategy.location_strategy_opts,
        glance.common.property_utils.property_opts,
        glance.common.rpc.rpc_opts,
        glance.common.wsgi.bind_opts,
        glance.common.wsgi.eventlet_opts,
        glance.common.wsgi.socket_opts,
        glance.image_cache.drivers.sqlite.sqlite_opts,
        glance.image_cache.image_cache_opts,
        glance.notifier.notifier_opts,
        glance.registry.registry_addr_opts,
        glance.registry.client.registry_client_ctx_opts,
        glance.registry.client.registry_client_opts,
        glance.registry.client.v1.api.registry_client_ctx_opts,
        glance.openstack.common.lockutils.util_opts,
        glance.openstack.common.policy.policy_opts,
        glance.scrubber.scrubber_opts])))),
    ('image_format', glance.common.config.image_format_opts),
    ('task', glance.common.config.task_opts),
    ('store_type_location_strategy',
     glance.common.location_strategy.store_type.store_type_opts),
    ('paste_deploy', glance.common.config.paste_deploy_opts)
]
_registry_opts = [
    (None, list(itertools.chain(*(_global_opt_lists + [
        glance.api.middleware.context.context_opts,
        glance.common.config.common_opts,
        glance.common.wsgi.bind_opts,
        glance.common.wsgi.socket_opts,
        glance.common.wsgi.eventlet_opts,
        glance.openstack.common.policy.policy_opts])))),
    ('paste_deploy', glance.common.config.paste_deploy_opts)
]
_scrubber_opts = [
    (None, list(itertools.chain(*(_global_opt_lists + [
        glance.common.config.common_opts,
        glance.openstack.common.lockutils.util_opts,
        glance.openstack.common.policy.policy_opts,
        glance.scrubber.scrubber_opts,
        glance.scrubber.scrubber_cmd_opts,
        glance.scrubber.scrubber_cmd_cli_opts,
        glance.registry.client.registry_client_ctx_opts,
        glance.registry.registry_addr_opts])))),
]
_cache_opts = [
    (None, list(itertools.chain(*(_global_opt_lists + [
        glance.common.config.common_opts,
        glance.openstack.common.policy.policy_opts,
        glance.image_cache.drivers.sqlite.sqlite_opts,
        glance.image_cache.image_cache_opts,
        glance.registry.registry_addr_opts,
        glance.registry.client.registry_client_ctx_opts])))),
]
_manage_opts = [
    (None, list(itertools.chain(*(_global_opt_lists + [
        glance.common.config.manage_opts]))))
]


def list_api_opts():
    """Return a list of oslo.config options available in Glance API service.

    Each element of the list is a tuple. The first element is the name of the
    group under which the list of elements in the second element will be
    registered. A group name of None corresponds to the [DEFAULT] group in
    config files.

    This function is also discoverable via the 'glance.api' entry point
    under the 'oslo.config.opts' namespace.

    The purpose of this is to allow tools like the Oslo sample config file
    generator to discover the options exposed to users by Glance.

    :returns: a list of (group_name, opts) tuples
    """

    return [(g, copy.deepcopy(o)) for g, o in _api_opts]


def list_registry_opts():
    """Return a list of oslo.config options available in Glance Registry
    service.
    """
    return [(g, copy.deepcopy(o)) for g, o in _registry_opts]


def list_scrubber_opts():
    """Return a list of oslo.config options available in Glance Scrubber
    service.
    """
    return [(g, copy.deepcopy(o)) for g, o in _scrubber_opts]


def list_cache_opts():
    """Return a list of oslo.config options available in Glance Cache
    service.
    """
    return [(g, copy.deepcopy(o)) for g, o in _cache_opts]


def list_manage_opts():
    """Return a list of oslo.config options available in Glance manage."""
    return [(g, copy.deepcopy(o)) for g, o in _manage_opts]