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/*
* Copyright 2010-2013 Ning, Inc.
*
* Ning 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.ning.billing.invoice.template.formatters;
import java.math.BigDecimal;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Locale;
import java.util.UUID;
import org.joda.time.DateTime;
import org.joda.time.LocalDate;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import com.ning.billing.catalog.api.Currency;
import com.ning.billing.invoice.api.Invoice;
import com.ning.billing.invoice.api.InvoiceItem;
import com.ning.billing.invoice.api.InvoiceItemType;
import com.ning.billing.invoice.api.InvoicePayment;
import com.ning.billing.invoice.api.formatters.InvoiceFormatter;
import com.ning.billing.invoice.model.CreditAdjInvoiceItem;
import com.ning.billing.invoice.model.CreditBalanceAdjInvoiceItem;
import com.ning.billing.util.template.translation.TranslatorConfig;
import com.google.common.base.Objects;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import static com.ning.billing.util.DefaultAmountFormatter.round;
/**
* Format invoice fields
*/
public class DefaultInvoiceFormatter implements InvoiceFormatter {
private final TranslatorConfig config;
private final Invoice invoice;
private final DateTimeFormatter dateFormatter;
private final Locale locale;
public DefaultInvoiceFormatter(final TranslatorConfig config, final Invoice invoice, final Locale locale) {
this.config = config;
this.invoice = invoice;
dateFormatter = DateTimeFormat.mediumDate().withLocale(locale);
this.locale = locale;
}
@Override
public Integer getInvoiceNumber() {
return Objects.firstNonNull(invoice.getInvoiceNumber(), 0);
}
@Override
public List getInvoiceItems() {
final List invoiceItems = new ArrayList();
InvoiceItem mergedCBAItem = null;
InvoiceItem mergedInvoiceAdjustment = null;
for (final InvoiceItem item : invoice.getInvoiceItems()) {
if (InvoiceItemType.CBA_ADJ.equals(item.getInvoiceItemType())) {
// Merge CBA items to avoid confusing the customer, since these are internal
// adjustments (auto generated)
mergedCBAItem = mergeCBAItem(invoiceItems, mergedCBAItem, item);
} else if (InvoiceItemType.REFUND_ADJ.equals(item.getInvoiceItemType()) ||
InvoiceItemType.CREDIT_ADJ.equals(item.getInvoiceItemType())) {
// Merge refund adjustments and credit adjustments, as these are both
// the same for the customer (invoice adjustment)
mergedInvoiceAdjustment = mergeInvoiceAdjustmentItem(invoiceItems, mergedInvoiceAdjustment, item);
} else {
invoiceItems.add(item);
}
}
// Don't display adjustments of zero
if (mergedCBAItem != null && mergedCBAItem.getAmount().compareTo(BigDecimal.ZERO) != 0) {
invoiceItems.add(mergedCBAItem);
}
if (mergedInvoiceAdjustment != null && mergedInvoiceAdjustment.getAmount().compareTo(BigDecimal.ZERO) != 0) {
invoiceItems.add(mergedInvoiceAdjustment);
}
final List formatters = new ArrayList();
for (final InvoiceItem item : invoiceItems) {
formatters.add(new DefaultInvoiceItemFormatter(config, item, dateFormatter, locale));
}
return formatters;
}
private InvoiceItem mergeCBAItem(final List invoiceItems, InvoiceItem mergedCBAItem, final InvoiceItem item) {
if (mergedCBAItem == null) {
mergedCBAItem = item;
} else {
// This is really just to be safe - they should always have the same currency
if (!mergedCBAItem.getCurrency().equals(item.getCurrency())) {
invoiceItems.add(item);
} else {
mergedCBAItem = new CreditBalanceAdjInvoiceItem(invoice.getId(), invoice.getAccountId(), invoice.getInvoiceDate(),
mergedCBAItem.getAmount().add(item.getAmount()), mergedCBAItem.getCurrency());
}
}
return mergedCBAItem;
}
private InvoiceItem mergeInvoiceAdjustmentItem(final List invoiceItems, InvoiceItem mergedInvoiceAdjustment, final InvoiceItem item) {
if (mergedInvoiceAdjustment == null) {
mergedInvoiceAdjustment = item;
} else {
// This is really just to be safe - they should always have the same currency
if (!mergedInvoiceAdjustment.getCurrency().equals(item.getCurrency())) {
invoiceItems.add(item);
} else {
mergedInvoiceAdjustment = new CreditAdjInvoiceItem(invoice.getId(), invoice.getAccountId(), invoice.getInvoiceDate(),
mergedInvoiceAdjustment.getAmount().add(item.getAmount()), mergedInvoiceAdjustment.getCurrency());
}
}
return mergedInvoiceAdjustment;
}
@Override
public boolean addInvoiceItem(final InvoiceItem item) {
return invoice.addInvoiceItem(item);
}
@Override
public boolean addInvoiceItems(final Collection items) {
return invoice.addInvoiceItems(items);
}
@Override
public List getInvoiceItems(final Class clazz) {
return Objects.firstNonNull(invoice.getInvoiceItems(clazz), ImmutableList.of());
}
@Override
public int getNumberOfItems() {
return invoice.getNumberOfItems();
}
@Override
public boolean addPayment(final InvoicePayment payment) {
return invoice.addPayment(payment);
}
@Override
public boolean addPayments(final Collection payments) {
return invoice.addPayments(payments);
}
@Override
public List getPayments() {
return Objects.firstNonNull(invoice.getPayments(), ImmutableList.of());
}
@Override
public int getNumberOfPayments() {
return invoice.getNumberOfPayments();
}
@Override
public UUID getAccountId() {
return invoice.getAccountId();
}
@Override
public BigDecimal getChargedAmount() {
return round(Objects.firstNonNull(invoice.getChargedAmount(), BigDecimal.ZERO));
}
@Override
public BigDecimal getOriginalChargedAmount() {
return round(Objects.firstNonNull(invoice.getOriginalChargedAmount(), BigDecimal.ZERO));
}
@Override
public BigDecimal getBalance() {
return round(Objects.firstNonNull(invoice.getBalance(), BigDecimal.ZERO));
}
@Override
public String getFormattedChargedAmount() {
final NumberFormat number = NumberFormat.getCurrencyInstance(locale);
return number.format(getChargedAmount().doubleValue());
}
@Override
public String getFormattedPaidAmount() {
final NumberFormat number = NumberFormat.getCurrencyInstance(locale);
return number.format(getPaidAmount().doubleValue());
}
@Override
public String getFormattedBalance() {
final NumberFormat number = NumberFormat.getCurrencyInstance(locale);
return number.format(getBalance().doubleValue());
}
@Override
public boolean isMigrationInvoice() {
return invoice.isMigrationInvoice();
}
@Override
public LocalDate getInvoiceDate() {
return invoice.getInvoiceDate();
}
@Override
public LocalDate getTargetDate() {
return invoice.getTargetDate();
}
@Override
public Currency getCurrency() {
return invoice.getCurrency();
}
@Override
public BigDecimal getPaidAmount() {
return round(Objects.firstNonNull(invoice.getPaidAmount(), BigDecimal.ZERO));
}
@Override
public String getFormattedInvoiceDate() {
final LocalDate invoiceDate = invoice.getInvoiceDate();
if (invoiceDate == null) {
return "";
} else {
return Strings.nullToEmpty(invoiceDate.toString(dateFormatter));
}
}
@Override
public UUID getId() {
return invoice.getId();
}
@Override
public DateTime getCreatedDate() {
return invoice.getCreatedDate();
}
@Override
public DateTime getUpdatedDate() {
return invoice.getUpdatedDate();
}
// Expose the fields for children classes. This is useful for further customization of the invoices
@SuppressWarnings("UnusedDeclaration")
protected TranslatorConfig getConfig() {
return config;
}
@SuppressWarnings("UnusedDeclaration")
protected DateTimeFormatter getDateFormatter() {
return dateFormatter;
}
@SuppressWarnings("UnusedDeclaration")
protected Locale getLocale() {
return locale;
}
protected Invoice getInvoice() {
return invoice;
}
@Override
public BigDecimal getCreditedAmount() {
return round(Objects.firstNonNull(invoice.getCreditedAmount(), BigDecimal.ZERO));
}
@Override
public BigDecimal getRefundedAmount() {
return round(Objects.firstNonNull(invoice.getRefundedAmount(), BigDecimal.ZERO));
}
}
