/**
 *    Copyright (C) 2018-present MongoDB, Inc.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the Server Side Public License, version 1,
 *    as published by MongoDB, Inc.
 *
 *    This program 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
 *    Server Side Public License for more details.
 *
 *    You should have received a copy of the Server Side Public License
 *    along with this program. If not, see
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the Server Side Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kIndex

#include "mongo/platform/basic.h"

#include "mongo/db/catalog/index_catalog_entry.h"

#include "mongo/db/index/index_access_method.h"
#include "mongo/db/index/index_descriptor.h"

namespace mongo {

const IndexCatalogEntry* IndexCatalogEntryContainer::find(const IndexDescriptor* desc) const {
    if (desc->_cachedEntry)
        return desc->_cachedEntry;

    for (const_iterator i = begin(); i != end(); ++i) {
        const IndexCatalogEntry* e = i->get();
        if (e->descriptor() == desc)
            return e;
    }
    return nullptr;
}

IndexCatalogEntry* IndexCatalogEntryContainer::find(const IndexDescriptor* desc) {
    if (desc->_cachedEntry)
        return desc->_cachedEntry;

    for (iterator i = begin(); i != end(); ++i) {
        IndexCatalogEntry* e = i->get();
        if (e->descriptor() == desc)
            return e;
    }
    return nullptr;
}

std::shared_ptr<IndexCatalogEntry> IndexCatalogEntryContainer::findShared(
    const IndexDescriptor* desc) const {
    for (auto&& entry : _entries) {
        if (entry->descriptor() == desc) {
            return entry;
        }
    }
    return {};
}

IndexCatalogEntry* IndexCatalogEntryContainer::find(const std::string& name) {
    for (iterator i = begin(); i != end(); ++i) {
        IndexCatalogEntry* e = i->get();
        if (e->descriptor()->indexName() == name)
            return e;
    }
    return nullptr;
}

std::shared_ptr<IndexCatalogEntry> IndexCatalogEntryContainer::release(
    const IndexDescriptor* desc) {
    for (auto i = _entries.begin(); i != _entries.end(); ++i) {
        if ((*i)->descriptor() != desc)
            continue;
        auto e = std::move(*i);
        _entries.erase(i);
        return e;
    }
    return nullptr;
}

}  // namespace mongo