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// 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
// "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.

package org.apache.cloudstack.api.command.user.autoscale;

import java.util.List;

import org.apache.log4j.Logger;

import org.apache.cloudstack.acl.SecurityChecker.AccessType;
import org.apache.cloudstack.api.ACL;
import org.apache.cloudstack.api.APICommand;
import org.apache.cloudstack.api.ApiCommandJobType;
import org.apache.cloudstack.api.ApiConstants;
import org.apache.cloudstack.api.ApiErrorCode;
import org.apache.cloudstack.api.BaseAsyncCmd;
import org.apache.cloudstack.api.Parameter;
import org.apache.cloudstack.api.ServerApiException;
import org.apache.cloudstack.api.response.AutoScalePolicyResponse;
import org.apache.cloudstack.api.response.ConditionResponse;
import org.apache.cloudstack.context.CallContext;

import com.cloud.event.EventTypes;
import com.cloud.network.as.AutoScalePolicy;
import com.cloud.user.Account;

@APICommand(name = "updateAutoScalePolicy", description = "Updates an existing autoscale policy.", responseObject = AutoScalePolicyResponse.class, entityType = {AutoScalePolicy.class},
        requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
public class UpdateAutoScalePolicyCmd extends BaseAsyncCmd {
    public static final Logger s_logger = Logger.getLogger(UpdateAutoScalePolicyCmd.class.getName());

    private static final String s_name = "updateautoscalepolicyresponse";

    // ///////////////////////////////////////////////////
    // ////////////// API parameters /////////////////////
    // ///////////////////////////////////////////////////

    @Parameter(name = ApiConstants.DURATION, type = CommandType.INTEGER, description = "the duration for which the conditions have to be true before action is taken")
    private Integer duration;

    @Parameter(name = ApiConstants.QUIETTIME,
               type = CommandType.INTEGER,
               description = "the cool down period for which the policy should not be evaluated after the action has been taken")
    private Integer quietTime;

    @Parameter(name = ApiConstants.CONDITION_IDS,
               type = CommandType.LIST,
               collectionType = CommandType.UUID,
               entityType = ConditionResponse.class,
               description = "the list of IDs of the conditions that are being evaluated on every interval")
    private List<Long> conditionIds;

    @ACL(accessType = AccessType.OperateEntry)
    @Parameter(name = ApiConstants.ID,
               type = CommandType.UUID,
               entityType = AutoScalePolicyResponse.class,
               required = true,
               description = "the ID of the autoscale policy")
    private Long id;

    @Override
    public void execute() {
        CallContext.current().setEventDetails("AutoScale Policy Id: " + getId());
        AutoScalePolicy result = _autoScaleService.updateAutoScalePolicy(this);
        if (result != null) {
            AutoScalePolicyResponse response = _responseGenerator.createAutoScalePolicyResponse(result);
            response.setResponseName(getCommandName());
            setResponseObject(response);
        } else {
            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to update autoscale policy");
        }
    }

    // ///////////////////////////////////////////////////
    // ///////////////// Accessors ///////////////////////
    // ///////////////////////////////////////////////////

    public Long getId() {
        return id;
    }

    public Integer getDuration() {
        return duration;
    }

    public Integer getQuietTime() {
        return quietTime;
    }

    public List<Long> getConditionIds() {
        return conditionIds;
    }

    @Override
    public String getCommandName() {
        return s_name;
    }

    @Override
    public long getEntityOwnerId() {
        AutoScalePolicy autoScalePolicy = _entityMgr.findById(AutoScalePolicy.class, getId());
        if (autoScalePolicy != null) {
            return autoScalePolicy.getAccountId();
        }

        return Account.ACCOUNT_ID_SYSTEM; // no account info given, parent this command to SYSTEM so ERROR events are
        // tracked
    }

    @Override
    public String getEventType() {
        return EventTypes.EVENT_AUTOSCALEPOLICY_UPDATE;
    }

    @Override
    public String getEventDescription() {
        return "Updating Auto Scale Policy. Policy Id: " + getId();
    }

    @Override
    public ApiCommandJobType getInstanceType() {
        return ApiCommandJobType.AutoScalePolicy;
    }
}