/**
 *  Copyright (C) 2010 Cloud.com, Inc.  All rights reserved.
 * 
 * This software is licensed under the GNU General Public License v3 or later.
 * 
 * It is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or any later version.
 * 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
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package com.cloud.api.commands;

import java.util.Map;

import org.apache.log4j.Logger;

import com.cloud.api.ApiDBUtils;
import com.cloud.api.BaseCmd;
import com.cloud.api.ServerApiException;
import com.cloud.api.BaseCmd.Manager;
import com.cloud.api.Implementation;
import com.cloud.api.Parameter;
import com.cloud.api.response.StoragePoolResponse;
import com.cloud.storage.StoragePoolVO;
import com.cloud.storage.StorageStats;

@SuppressWarnings("rawtypes")
@Implementation(method="createPool", manager=Manager.StorageManager, description="Creates a storage pool.")
public class CreateStoragePoolCmd extends BaseCmd {
    public static final Logger s_logger = Logger.getLogger(CreateStoragePoolCmd.class.getName());

    private static final String s_name = "createstoragepoolresponse";

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

    @Parameter(name="clusterid", type=CommandType.LONG, description="the cluster ID for the storage pool")
    private Long clusterId;

    @Parameter(name="details", type=CommandType.MAP, description="the details for the storage pool")
    private Map details;

    @Parameter(name="name", type=CommandType.STRING, required=true, description="the name for the storage pool")
    private String storagePoolName;

    @Parameter(name="podid", type=CommandType.LONG, description="the Pod ID for the storage pool")
    private Long podId;

    @Parameter(name="tags", type=CommandType.STRING, description="the tags for the storage pool")
    private String tags;

    @Parameter(name="url", type=CommandType.STRING, required=true, description="the URL of the storage pool")
    private String url;

    @Parameter(name="zoneid", type=CommandType.LONG, required=true, description="the Zone ID for the storage pool")
    private Long zoneId;

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

    public Long getClusterId() {
        return clusterId;
    }

    public Map getDetails() {
        return details;
    }

    public String getStoragePoolName() {
        return storagePoolName;
    }

    public Long getPodId() {
        return podId;
    }

    public String getTags() {
        return tags;
    }

    public String getUrl() {
        return url;
    }

    public Long getZoneId() {
        return zoneId;
    }

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

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

    @Override @SuppressWarnings("unchecked")
    public StoragePoolResponse getResponse() {
        StoragePoolVO pool = (StoragePoolVO)getResponseObject();

        if (pool != null) {
            StoragePoolResponse response = new StoragePoolResponse();
            response.setClusterId(pool.getClusterId());
            response.setClusterName(ApiDBUtils.findClusterById(pool.getClusterId()).getName());
            response.setPodName(ApiDBUtils.findPodById(pool.getPodId()).getName());
            response.setCreated(pool.getCreated());
            response.setId(pool.getId());
            response.setIpAddress(pool.getHostAddress());
            response.setName(pool.getName());
            response.setPath(pool.getPath());
            response.setPodId(pool.getPodId());
            response.setType(pool.getPoolType().toString());
            response.setTags(ApiDBUtils.getStoragePoolTags(pool.getId()));

            StorageStats stats = ApiDBUtils.getStoragePoolStatistics(pool.getId());
            long used = pool.getCapacityBytes() - pool.getAvailableBytes();
            if (stats != null) {
                used = stats.getByteUsed();
            }
            response.setDiskSizeTotal(pool.getCapacityBytes());
            response.setDiskSizeAllocated(used);

            response.setResponseName(getName());
            return response;
        } else {
            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to add host");
        }
    }
}