package org.multibit.mbm.client.interfaces.rest.resources.delivery;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.theoryinpractise.halbuilder.api.Representation;
import com.yammer.dropwizard.jersey.caching.CacheControl;
import com.yammer.metrics.annotation.Timed;
import org.multibit.mbm.client.common.pagination.PaginatedList;
import org.multibit.mbm.client.domain.model.model.Delivery;
import org.multibit.mbm.client.domain.model.model.Item;
import org.multibit.mbm.client.domain.model.model.User;
import org.multibit.mbm.client.domain.repositories.DeliveryReadService;
import org.multibit.mbm.client.domain.repositories.ItemReadService;
import org.multibit.mbm.client.interfaces.rest.api.delivery.AdminUpdateDeliveryDto;
import org.multibit.mbm.client.interfaces.rest.api.delivery.SupplierDeliveryItemDto;
import org.multibit.mbm.client.interfaces.rest.api.hal.HalMediaType;
import org.multibit.mbm.client.interfaces.rest.api.representations.hal.delivery.AdminDeliveryCollectionRepresentation;
import org.multibit.mbm.client.interfaces.rest.api.representations.hal.delivery.AdminDeliveryRepresentation;
import org.multibit.mbm.client.interfaces.rest.auth.Authority;
import org.multibit.mbm.client.interfaces.rest.auth.annotation.RestrictedTo;
import org.multibit.mbm.client.interfaces.rest.common.ResourceAsserts;
import org.multibit.mbm.client.interfaces.rest.resources.BaseResource;
import org.springframework.stereotype.Component;
import javax.annotation.Resource;
import javax.ws.rs.*;
import javax.ws.rs.core.Response;
import java.util.concurrent.TimeUnit;
/**
* <p>Resource to provide the following to application:</p>
* <ul>
* <li>Provision of REST endpoints to manage CRUD operations by an administrator against a collection of {@link org.multibit.mbm.client.domain.model.model.Delivery} entities</li>
* </ul>
* <p>Note that a Delivery has a 1:1 relationship with Supplier and is meaningless
* without it. Therefore there is no "Create" or "Delete" requirement.</p>
*
* @since 0.0.1
*/
@Component
@Path("/admin/deliveries")
@Produces({HalMediaType.APPLICATION_HAL_JSON, HalMediaType.APPLICATION_HAL_XML})
public class AdminDeliveryResource extends BaseResource {
@Resource(name = "hibernateDeliveryDao")
DeliveryReadService deliveryReadService;
@Resource(name = "hibernateItemDao")
ItemReadService itemReadService;
/**
* Provide a paged response of all Deliveries in the system
*
* @param adminUser A User with administrator rights
* @param rawPageSize The unvalidated page size
* @param rawPageNumber The unvalidated page number
*
* @return A response containing a paged list of all Deliveries
*/
@GET
@Timed
@CacheControl(maxAge = 6, maxAgeUnit = TimeUnit.HOURS)
public Response retrieveAllByPage(
@RestrictedTo({Authority.ROLE_ADMIN})
User adminUser,
@QueryParam("ps") Optional<String> rawPageSize,
@QueryParam("pn") Optional<String> rawPageNumber) {
// Validation
int pageSize = Integer.valueOf(rawPageSize.get());
int pageNumber = Integer.valueOf(rawPageNumber.get());
PaginatedList<Delivery> deliveries = deliveryReadService.getPaginatedList(pageSize, pageNumber);
// Provide a representation to the client
Representation representation = new AdminDeliveryCollectionRepresentation().get(deliveries);
return ok(representation);
}
/**
* Update an existing Delivery with the populated fields
*
* @param adminUser A delivery with administrator rights
*
* @return A response containing the full details of the updated entity
*/
@PUT
@Timed
@Path("/{deliveryId}")
public Response update(
@RestrictedTo({Authority.ROLE_ADMIN})
User adminUser,
@PathParam("deliveryId") Long deliveryId,
AdminUpdateDeliveryDto updateDeliveryRequest) {
// Retrieve the delivery
Optional<Delivery> delivery = deliveryReadService.getById(deliveryId);
ResourceAsserts.assertPresent(delivery,"delivery");
// Verify and apply any changes to the Delivery
Delivery persistentDelivery = delivery.get();
apply(updateDeliveryRequest,persistentDelivery);
// Persist the updated delivery
persistentDelivery = deliveryReadService.saveOrUpdate(persistentDelivery);
// Provide a representation to the client
Representation representation = new AdminDeliveryRepresentation().get(persistentDelivery);
return ok(representation);
}
/**
* TODO Refactor into a common handler
* @param updateRequest The update request containing the changes
* @param entity The entity to which these changes will be applied
*/
private void apply(AdminUpdateDeliveryDto updateRequest, Delivery entity) {
for (SupplierDeliveryItemDto supplierDeliveryItem : updateRequest.getDeliveryItems()) {
Preconditions.checkNotNull(supplierDeliveryItem.getSKU(), "id");
ResourceAsserts.assertPositive(supplierDeliveryItem.getQuantity(), "quantity");
Optional<Item> item = itemReadService.getBySKU(supplierDeliveryItem.getSKU());
ResourceAsserts.assertPresent(item,"item");
entity.setItemQuantity(item.get(),supplierDeliveryItem.getQuantity());
}
}
public void setDeliveryReadService(DeliveryReadService deliveryReadService) {
this.deliveryReadService = deliveryReadService;
}
public void setItemReadService(ItemReadService itemReadService) {
this.itemReadService = itemReadService;
}
}