package org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure;

import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.groupbasedpolicy.util.IidFactory;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.Description;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.Name;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.EndpointGroup;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.EndpointGroup.IntraGroupPolicy;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.EndpointGroupBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.endpoint.group.ConsumerNamedSelector;

import com.google.common.base.Preconditions;

public class NetworkClient {

    private static final Name NETWORK_CLIENT_EPG_NAME = new Name("NETWORK_CLIENT");
    private static final Description NETWORK_CLIENT_EPG_DESC = new Description("Represents DHCP and DNS clients.");
    /**
     * ID of {@link #EPG}
     */
    public static final EndpointGroupId EPG_ID = new EndpointGroupId("ccc5e444-573c-11e5-885d-feff819cdc9f");
    /**
     * Network-client endpoint-group consuming no contract
     */
    public static final EndpointGroup EPG;

    static {
        EPG = createNetworkClientEpg();
    }

    private static EndpointGroup createNetworkClientEpg() {
        return new EndpointGroupBuilder().setId(EPG_ID)
            .setName(NETWORK_CLIENT_EPG_NAME)
            .setIntraGroupPolicy(IntraGroupPolicy.RequireContract)
            .setDescription(NETWORK_CLIENT_EPG_DESC)
            .build();
    }

    /**
     * Puts {@link #EPG} to {@link LogicalDatastoreType#CONFIGURATION}
     * 
     * @param tenantId location of {@link #EPG}
     * @param wTx transaction where {@link #EPG} is written
     */
    public static void writeNetworkClientEntitiesToTenant(TenantId tenantId, WriteTransaction wTx) {
        wTx.put(LogicalDatastoreType.CONFIGURATION, IidFactory.endpointGroupIid(tenantId, EPG_ID), EPG, true);
    }

    /**
     * Puts consumer-named-selector to {@link #EPG} in {@link LogicalDatastoreType#CONFIGURATION}
     * 
     * @param tenantId tenantId location of {@link #EPG}
     * @param consumerNamedSelector is added to {@link #EPG}
     * @param wTx transaction where the given consumer-named-selector is written
     */
    public static void writeConsumerNamedSelector(TenantId tenantId, ConsumerNamedSelector consumerNamedSelector,
            WriteTransaction wTx) {
        Preconditions.checkNotNull(consumerNamedSelector);
        wTx.put(LogicalDatastoreType.CONFIGURATION,
                IidFactory.consumerNamedSelectorIid(tenantId, EPG_ID, consumerNamedSelector.getName()),
                consumerNamedSelector, true);
    }

}