// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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
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// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.host.dao;

import java.util.Date;
import java.util.List;

import com.cloud.host.Host;
import com.cloud.host.Host.Type;
import com.cloud.host.HostVO;
import com.cloud.host.Status;
import com.cloud.info.RunningHostCountInfo;
import com.cloud.resource.ResourceState;
import com.cloud.utils.db.GenericDao;
import com.cloud.utils.fsm.StateDao;

/**
 * Data Access Object for server
 *
 */
public interface HostDao extends GenericDao<HostVO, Long>, StateDao<Status, Status.Event, Host> {
    long countBy(long clusterId,  ResourceState... states);

    /**
     * Mark all hosts associated with a certain management server
     * as disconnected.
     * 
     * @param msId management server id.
     */
    void markHostsAsDisconnected(long msId, long lastPing);

    List<HostVO> findLostHosts(long timeout);

    List<HostVO> findAndUpdateDirectAgentToLoad(long lastPingSecondsAfter, Long limit, long managementServerId);

    List<RunningHostCountInfo> getRunningHostCounts(Date cutTime);

    long getNextSequence(long hostId);

    void loadDetails(HostVO host);

    void saveDetails(HostVO host);

    void loadHostTags(HostVO host);

    List<HostVO> listByHostTag(Host.Type type, Long clusterId, Long podId, long dcId, String hostTag);

    long countRoutingHostsByDataCenter(long dcId);

    List<HostVO> findAndUpdateApplianceToLoad(long lastPingSecondsAfter, long managementServerId);

    boolean updateResourceState(ResourceState oldState, ResourceState.Event event, ResourceState newState, Host vo);

    HostVO findByGuid(String guid);

    HostVO findByTypeNameAndZoneId(long zoneId, String name, Host.Type type);
    List<HostVO> findHypervisorHostInCluster(long clusterId);

    /**
     * @param type
     * @param clusterId
     * @param podId
     * @param dcId
     * @param haTag TODO
     * @return
     */
    List<HostVO> listAllUpAndEnabledNonHAHosts(Type type, Long clusterId, Long podId, long dcId, String haTag);

    List<HostVO> findByPodId(Long podId);

    List<HostVO> findByClusterId(Long clusterId);

    List<HostVO> listByDataCenterId(long id);

    List<Long> listAllHosts(long zoneId);
}