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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 com.cloud.api.commands;

import javax.inject.Inject;

import org.apache.log4j.Logger;

import org.apache.cloudstack.api.APICommand;
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.PhysicalNetworkResponse;
import org.apache.cloudstack.context.CallContext;

import com.cloud.api.response.F5LoadBalancerResponse;
import com.cloud.event.EventTypes;
import com.cloud.exception.ConcurrentOperationException;
import com.cloud.exception.InsufficientCapacityException;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.ResourceUnavailableException;
import com.cloud.network.dao.ExternalLoadBalancerDeviceVO;
import com.cloud.network.element.F5ExternalLoadBalancerElementService;
import com.cloud.utils.exception.CloudRuntimeException;

@APICommand(name = "addF5LoadBalancer", responseObject = F5LoadBalancerResponse.class, description = "Adds a F5 BigIP load balancer device",
        requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
public class AddF5LoadBalancerCmd extends BaseAsyncCmd {

    public static final Logger s_logger = Logger.getLogger(AddF5LoadBalancerCmd.class.getName());
    private static final String s_name = "addf5bigiploadbalancerresponse";
    @Inject
    F5ExternalLoadBalancerElementService _f5DeviceManagerService;

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

    @Parameter(name = ApiConstants.PHYSICAL_NETWORK_ID,
               type = CommandType.UUID,
               entityType = PhysicalNetworkResponse.class,
               required = true,
               description = "the Physical Network ID")
    private Long physicalNetworkId;

    @Parameter(name = ApiConstants.URL, type = CommandType.STRING, required = true, description = "URL of the F5 load balancer appliance.")
    private String url;

    @Parameter(name = ApiConstants.USERNAME, type = CommandType.STRING, required = true, description = "Credentials to reach F5 BigIP load balancer device")
    private String username;

    @Parameter(name = ApiConstants.PASSWORD, type = CommandType.STRING, required = true, description = "Credentials to reach F5 BigIP load balancer device")
    private String password;

    @Parameter(name = ApiConstants.NETWORK_DEVICE_TYPE, type = CommandType.STRING, required = true, description = "supports only F5BigIpLoadBalancer")
    private String deviceType;

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

    public Long getPhysicalNetworkId() {
        return physicalNetworkId;
    }

    public String getUrl() {
        return url;
    }

    public String getUsername() {
        return username;
    }

    public String getPassword() {
        return password;
    }

    public String getDeviceType() {
        return deviceType;
    }

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

    @Override
    public void execute() throws ResourceUnavailableException, InsufficientCapacityException, ServerApiException, ConcurrentOperationException,
        ResourceAllocationException {
        try {
            ExternalLoadBalancerDeviceVO lbDeviceVO = _f5DeviceManagerService.addF5LoadBalancer(this);
            if (lbDeviceVO != null) {
                F5LoadBalancerResponse response = _f5DeviceManagerService.createF5LoadBalancerResponse(lbDeviceVO);
                response.setObjectName("f5loadbalancer");
                response.setResponseName(getCommandName());
                this.setResponseObject(response);
            } else {
                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to add F5 Big IP load balancer due to internal error.");
            }
        } catch (InvalidParameterValueException invalidParamExcp) {
            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
        } catch (CloudRuntimeException runtimeExcp) {
            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
        }
    }

    @Override
    public String getEventDescription() {
        return "Adding a F5 Big Ip load balancer device";
    }

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

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

    @Override
    public long getEntityOwnerId() {
        return CallContext.current().getCallingAccount().getId();
    }
}