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// 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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// specific language governing permissions and limitations
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package org.apache.cloudstack.api.command.user.vpn;

import com.cloud.event.EventTypes;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.network.Site2SiteVpnGateway;
import com.cloud.network.vpc.Vpc;
import org.apache.cloudstack.acl.RoleType;
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.BaseAsyncCreateCmd;
import org.apache.cloudstack.api.Parameter;
import org.apache.cloudstack.api.ServerApiException;
import org.apache.cloudstack.api.response.IPAddressResponse;
import org.apache.cloudstack.api.response.Site2SiteVpnGatewayResponse;
import org.apache.cloudstack.api.response.VpcResponse;
import org.apache.cloudstack.context.CallContext;

@APICommand(name = "createVpnGateway", description = "Creates site to site vpn local gateway", responseObject = Site2SiteVpnGatewayResponse.class, entityType = {Site2SiteVpnGateway.class},
        requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
public class CreateVpnGatewayCmd extends BaseAsyncCreateCmd {


    /////////////////////////////////////////////////////
    //////////////// API parameters /////////////////////
    /////////////////////////////////////////////////////
    @Parameter(name = ApiConstants.VPC_ID,
               type = CommandType.UUID,
               entityType = VpcResponse.class,
               required = true,
               description = "id of the vpc")
    private Long vpcId;

    @Parameter(name = ApiConstants.IP_ADDRESS_ID,
            type = CommandType.UUID,
            entityType = IPAddressResponse.class,
            description = "the public IP address ID for which VPN gateway is being enabled. By default the source NAT IP or router IP will be used.",
            since = "4.21.0")
    private Long ipAddressId;

    @Parameter(name = ApiConstants.FOR_DISPLAY, type = CommandType.BOOLEAN, description = "an optional field, whether to the display the vpn to the end user or not", since = "4.4", authorized = {RoleType.Admin})
    private Boolean display;

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

    public Long getVpcId() {
        return vpcId;
    }

    public Long getIpAddressId() {
        return ipAddressId;
    }

    @Deprecated
    public Boolean getDisplay() {
        return display;
    }

    @Override
    public boolean isDisplay() {
        if (display != null) {
            return display;
        } else {
            return true;
        }
    }

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

    @Override
    public long getEntityOwnerId() {
        Vpc vpc = _entityMgr.findById(Vpc.class, vpcId);
        return vpc.getAccountId();
    }

    @Override
    public String getEventDescription() {
        return "Create site-to-site VPN gateway for account " + getEntityOwnerId();
    }

    @Override
    public String getEventType() {
        return EventTypes.EVENT_S2S_VPN_GATEWAY_CREATE;
    }

    @Override
    public void execute() {
        CallContext.current().setEventDetails("VPN gateway Id: " + getEntityId());
        Site2SiteVpnGateway result = _s2sVpnService.getVpnGateway(getEntityId());
        if (result != null) {
            Site2SiteVpnGatewayResponse response = _responseGenerator.createSite2SiteVpnGatewayResponse(result);
            response.setResponseName(getCommandName());
            setResponseObject(response);
        } else {
            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to create VPN gateway");
        }
    }

    @Override
    public String getSyncObjType() {
        return BaseAsyncCmd.vpcSyncObject;
    }

    @Override
    public Long getSyncObjId() {
        return getVpcId();
    }

    @Override
    public void create() throws ResourceAllocationException {
        Site2SiteVpnGateway result = _s2sVpnService.createVpnGateway(this);
        if (result != null) {
            setEntityId(result.getId());
            setEntityUuid(result.getUuid());
        } else {
            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to create VPN gateway");
        }
    }
}
