// 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
// "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.volume;

import org.apache.cloudstack.api.APICommand;
import org.apache.cloudstack.api.ApiCommandResourceType;
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.ResponseObject.ResponseView;
import org.apache.cloudstack.api.ServerApiException;
import org.apache.cloudstack.api.command.user.UserCmd;
import org.apache.cloudstack.api.response.DiskOfferingResponse;
import org.apache.cloudstack.api.response.DomainResponse;
import org.apache.cloudstack.api.response.ProjectResponse;
import org.apache.cloudstack.api.response.VolumeResponse;
import org.apache.cloudstack.api.response.ZoneResponse;
import org.apache.cloudstack.context.CallContext;
import org.apache.log4j.Logger;

import com.cloud.dc.DataCenter;
import com.cloud.event.EventTypes;
import com.cloud.exception.ConcurrentOperationException;
import com.cloud.exception.InsufficientCapacityException;
import com.cloud.exception.NetworkRuleConflictException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.ResourceUnavailableException;
import com.cloud.storage.Volume;

@APICommand(name = "uploadVolume", description = "Uploads a data disk.", responseObject = VolumeResponse.class, responseView = ResponseView.Restricted, entityType = {Volume.class},
        requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
public class UploadVolumeCmd extends BaseAsyncCmd implements UserCmd {
    public static final Logger s_logger = Logger.getLogger(UploadVolumeCmd.class.getName());
    private static final String s_name = "uploadvolumeresponse";

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

    @Parameter(name = ApiConstants.FORMAT,
               type = CommandType.STRING,
               required = true,
               description = "the format for the volume. Possible values include QCOW2, OVA, and VHD.")
    private String format;

    @Parameter(name = ApiConstants.NAME, type = CommandType.STRING, required = true, description = "the name of the volume")
    private String volumeName;

    @Parameter(name = ApiConstants.URL,
               type = CommandType.STRING,
               required = true,
               length = 2048,
               description = "the URL of where the volume is hosted. Possible URL include http:// and https://")
    private String url;

    @Parameter(name = ApiConstants.ZONE_ID,
               type = CommandType.UUID,
               entityType = ZoneResponse.class,
               required = true,
               description = "the ID of the zone the volume is to be hosted on")
    private Long zoneId;

    @Parameter(name = ApiConstants.DOMAIN_ID,
               type = CommandType.UUID,
               entityType = DomainResponse.class,
               description = "an optional domainId. If the account parameter is used, domainId must also be used. If account is NOT provided then volume will be assigned to the caller account and domain.")
    private Long domainId;

    @Parameter(name = ApiConstants.ACCOUNT, type = CommandType.STRING, description = "an optional accountName. Must be used with domainId.")
    private String accountName;

    @Parameter(name = ApiConstants.CHECKSUM, type = CommandType.STRING, description = "the checksum value of this volume. " + ApiConstants.CHECKSUM_PARAMETER_PREFIX_DESCRIPTION)
    private String checksum;

    @Parameter(name = ApiConstants.IMAGE_STORE_UUID, type = CommandType.STRING, description = "Image store uuid")
    private String imageStoreUuid;

    @Parameter(name = ApiConstants.PROJECT_ID, type = CommandType.UUID, entityType = ProjectResponse.class, description = "Upload volume for the project")
    private Long projectId;

    @Parameter(name = ApiConstants.DISK_OFFERING_ID, required = false, type = CommandType.UUID, entityType = DiskOfferingResponse.class, description = "the ID of the disk offering. This must be a custom sized offering since during uploadVolume volume size is unknown.")
    private Long diskOfferingId;

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

    public String getFormat() {
        return format;
    }

    public String getVolumeName() {
        return volumeName;
    }

    public String getUrl() {
        return url;
    }

    public Long getZoneId() {
        return zoneId;
    }

    public Long getDomainId() {
        return domainId;
    }

    public String getAccountName() {
        return accountName;
    }

    public String getChecksum() {
        return checksum;
    }

    public String getImageStoreUuid() {
        return imageStoreUuid;
    }

    public Long getDiskOfferingId() {
        return diskOfferingId;
    }

    /////////////////////////////////////////////////////
    /////////////// API Implementation///////////////////
    /////////////////////////////////////////////////////

    @Override
    public void execute() throws ResourceUnavailableException, InsufficientCapacityException, ServerApiException, ConcurrentOperationException,
        ResourceAllocationException, NetworkRuleConflictException {

            Volume volume = _volumeService.uploadVolume(this);
            if (volume != null){
            VolumeResponse response = _responseGenerator.createVolumeResponse(getResponseView(), volume);
                response.setResponseName(getCommandName());
                setResponseObject(response);
            } else {
                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to upload volume");
            }
    }

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

    @Override
    public long getEntityOwnerId() {
        Long accountId = _accountService.finalyzeAccountId(accountName, domainId, projectId, true);
        if (accountId == null) {
            return CallContext.current().getCallingAccount().getId();
        }

        return accountId;
    }

    @Override
    public String getEventDescription() {
        return  "uploading volume: " + getVolumeName() + " in the zone " + this._uuidMgr.getUuid(DataCenter.class, getZoneId());
    }

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

    @Override
    public ApiCommandResourceType getApiResourceType() {
        return ApiCommandResourceType.Volume;
    }
}
