package org.multibit.mbm.client.interfaces.rest.api.representations.hal.purchaseorder;
import com.google.common.base.Preconditions;
import com.theoryinpractise.halbuilder.DefaultRepresentationFactory;
import com.theoryinpractise.halbuilder.api.Representation;
import com.xeiam.xchange.currency.MoneyUtils;
import org.joda.money.BigMoney;
import org.multibit.mbm.client.domain.model.model.PurchaseOrder;
import org.multibit.mbm.client.domain.model.model.PurchaseOrderItem;
import org.multibit.mbm.client.interfaces.rest.api.representations.hal.item.SupplierPurchaseOrderItemRepresentation;
/**
* <p>Representation to provide the following to Suppliers:</p>
* <ul>
* <li>Creates {@link Representation} representations of a PurchaseOrder</li>
* </ul>
*
* @since 0.0.1
*/
public class SupplierPurchaseOrderRepresentation {
private final SupplierPurchaseOrderItemRepresentation supplierPurchaseOrderItemRepresentation = new SupplierPurchaseOrderItemRepresentation();
public Representation get(PurchaseOrder purchaseOrder) {
Preconditions.checkNotNull(purchaseOrder, "purchaseOrder");
Preconditions.checkNotNull(purchaseOrder.getId(), "id");
// Do not reveal the ID to non-admins
String basePath = "/purchaseOrder";
// TODO Integrate with Presets and PurchaseOrderItem
String currencySymbol = "Ƀ"; // or £ or €
String currencyCode = "BTC";
// Calculate the value of the purchaseOrder items
// TODO Allow for currency conversion
BigMoney purchaseOrderTotal = MoneyUtils.parseBitcoin("BTC 0.0000");
BigMoney taxTotal = MoneyUtils.parseBitcoin("BTC 0.0000");
for (PurchaseOrderItem purchaseOrderItem: purchaseOrder.getPurchaseOrderItems()) {
purchaseOrderTotal = purchaseOrderTotal.plus(purchaseOrderItem.getPriceSubtotal());
taxTotal = taxTotal.plus(purchaseOrderItem.getTaxSubtotal());
}
// Create top-level resource
Representation purchaseOrderRepresentation = new DefaultRepresentationFactory()
.newRepresentation(basePath)
// Do not reveal the supplier to non-admins
.withLink("supplier","/supplier")
.withProperty("currency_symbol", currencySymbol)
.withProperty("currency_code", currencyCode)
.withProperty("price_total", purchaseOrderTotal.getAmount().toPlainString())
.withProperty("tax_total", taxTotal.getAmount().toPlainString())
.withProperty("item_total", purchaseOrder.getItemTotal())
.withProperty("quantity_total", purchaseOrder.getQuantityTotal())
// End of build
;
// Create sub-resources based on items
for (PurchaseOrderItem purchaseOrderItem : purchaseOrder.getPurchaseOrderItems()) {
Representation publicPurchaseOrderItemRepresentation = supplierPurchaseOrderItemRepresentation.get(purchaseOrderItem);
purchaseOrderRepresentation.withRepresentation("purchaseOrderItems", publicPurchaseOrderItemRepresentation);
}
return purchaseOrderRepresentation;
}
}