com.liferay.commerce.discount.internal.CommerceDiscountCalculationV2Impl Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.commerce.discount.internal;
import com.liferay.commerce.account.model.CommerceAccount;
import com.liferay.commerce.context.CommerceContext;
import com.liferay.commerce.currency.model.CommerceCurrency;
import com.liferay.commerce.currency.model.CommerceMoney;
import com.liferay.commerce.currency.model.CommerceMoneyFactory;
import com.liferay.commerce.discount.CommerceDiscountCalculation;
import com.liferay.commerce.discount.CommerceDiscountValue;
import com.liferay.commerce.discount.application.strategy.CommerceDiscountApplicationStrategy;
import com.liferay.commerce.discount.constants.CommerceDiscountConstants;
import com.liferay.commerce.discount.model.CommerceDiscount;
import com.liferay.commerce.discount.model.CommerceDiscountRule;
import com.liferay.commerce.discount.rule.type.CommerceDiscountRuleType;
import com.liferay.commerce.discount.rule.type.CommerceDiscountRuleTypeRegistry;
import com.liferay.commerce.discount.service.CommerceDiscountRuleLocalService;
import com.liferay.commerce.discount.service.CommerceDiscountUsageEntryLocalService;
import com.liferay.commerce.model.CommerceOrder;
import com.liferay.commerce.price.list.model.CommercePriceListDiscountRel;
import com.liferay.commerce.price.list.service.CommercePriceListDiscountRelLocalService;
import com.liferay.commerce.pricing.configuration.CommercePricingConfiguration;
import com.liferay.commerce.product.model.CPInstance;
import com.liferay.commerce.product.service.CPInstanceLocalService;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.dao.orm.QueryUtil;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.module.configuration.ConfigurationException;
import com.liferay.portal.kernel.module.configuration.ConfigurationProvider;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.Validator;
import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.Stream;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferenceCardinality;
import org.osgi.service.component.annotations.ReferencePolicy;
import org.osgi.service.component.annotations.ReferencePolicyOption;
/**
* @author Riccardo Alberti
*/
@Component(
property = "commerce.discount.calculation.key=v2.0",
service = CommerceDiscountCalculation.class
)
public class CommerceDiscountCalculationV2Impl
extends BaseCommerceDiscountCalculation {
@Override
public CommerceDiscountValue getOrderShippingCommerceDiscountValue(
CommerceOrder commerceOrder, BigDecimal shippingAmount,
CommerceContext commerceContext)
throws PortalException {
if (commerceOrder == null) {
return null;
}
return _getCommerceDiscountValue(
commerceOrder, shippingAmount, commerceContext,
CommerceDiscountConstants.TARGET_SHIPPING);
}
@Override
public CommerceDiscountValue getOrderSubtotalCommerceDiscountValue(
CommerceOrder commerceOrder, BigDecimal subtotalAmount,
CommerceContext commerceContext)
throws PortalException {
if (commerceOrder == null) {
return null;
}
return _getCommerceDiscountValue(
commerceOrder, subtotalAmount, commerceContext,
CommerceDiscountConstants.TARGET_SUBTOTAL);
}
@Override
public CommerceDiscountValue getOrderTotalCommerceDiscountValue(
CommerceOrder commerceOrder, BigDecimal totalAmount,
CommerceContext commerceContext)
throws PortalException {
if (commerceOrder == null) {
return null;
}
return _getCommerceDiscountValue(
commerceOrder, totalAmount, commerceContext,
CommerceDiscountConstants.TARGET_TOTAL);
}
@Override
public CommerceDiscountValue getProductCommerceDiscountValue(
long cpInstanceId, int quantity, BigDecimal productUnitPrice,
CommerceContext commerceContext)
throws PortalException {
return getProductCommerceDiscountValue(
cpInstanceId, 0, quantity, productUnitPrice, commerceContext);
}
@Override
public CommerceDiscountValue getProductCommerceDiscountValue(
long cpInstanceId, long commercePriceListId, int quantity,
BigDecimal productUnitPrice, CommerceContext commerceContext)
throws PortalException {
CPInstance cpInstance = _cpInstanceLocalService.getCPInstance(
cpInstanceId);
List commercePriceListDiscountRels =
_commercePriceListDiscountRelLocalService.
getCommercePriceListDiscountRels(commercePriceListId);
if ((commercePriceListDiscountRels != null) &&
!commercePriceListDiscountRels.isEmpty()) {
Stream stream =
commercePriceListDiscountRels.stream();
long[] commerceDiscountIds = stream.mapToLong(
CommercePriceListDiscountRel::getCommerceDiscountId
).toArray();
List commerceDiscounts =
commerceDiscountLocalService.getPriceListCommerceDiscounts(
commerceDiscountIds, cpInstance.getCPDefinitionId());
if (commerceDiscounts.isEmpty()) {
return null;
}
return _getCommerceDiscountValues(
productUnitPrice, quantity, commerceContext, commerceDiscounts);
}
List commerceDiscounts =
getProductCommerceDiscountByHierarchy(
cpInstance.getCompanyId(), commerceContext.getCommerceAccount(),
commerceContext.getCommerceChannelId(),
cpInstance.getCPDefinitionId());
if (commerceDiscounts.isEmpty()) {
return null;
}
return _getCommerceDiscountValues(
productUnitPrice, quantity, commerceContext, commerceDiscounts);
}
public void unsetCommerceDiscountApplicationStrategy(
CommerceDiscountApplicationStrategy commerceDiscountApplicationStrategy,
Map properties) {
String commerceDiscountApplicationStrategyKey = GetterUtil.getString(
properties.get("commerce.discount.application.strategy.key"));
_commerceDiscountApplicationStrategyMap.remove(
commerceDiscountApplicationStrategyKey);
}
@Reference(
cardinality = ReferenceCardinality.MULTIPLE,
policy = ReferencePolicy.DYNAMIC,
policyOption = ReferencePolicyOption.GREEDY
)
protected void setCommerceDiscountApplicationStrategy(
CommerceDiscountApplicationStrategy commerceDiscountApplicationStrategy,
Map properties) {
String commerceDiscountApplicationStrategyKey = GetterUtil.getString(
properties.get("commerce.discount.application.strategy.key"));
_commerceDiscountApplicationStrategyMap.put(
commerceDiscountApplicationStrategyKey,
commerceDiscountApplicationStrategy);
}
private CommerceDiscountApplicationStrategy
_getCommerceDiscountApplicationStrategy()
throws ConfigurationException {
CommercePricingConfiguration commercePricingConfiguration =
_configurationProvider.getSystemConfiguration(
CommercePricingConfiguration.class);
String commerceDiscountApplicationStrategy =
commercePricingConfiguration.commerceDiscountApplicationStrategy();
if (!_commerceDiscountApplicationStrategyMap.containsKey(
commerceDiscountApplicationStrategy)) {
if (_log.isWarnEnabled()) {
_log.warn(
"No commerce discount application strategy specified for " +
commerceDiscountApplicationStrategy);
}
return null;
}
return _commerceDiscountApplicationStrategyMap.get(
commerceDiscountApplicationStrategy);
}
private BigDecimal _getCommerceDiscountLevel(
BigDecimal currentDiscountLevel, BigDecimal commercePrice,
CommerceCurrency commerceCurrency, long commerceDiscountId,
BigDecimal commerceDiscountValue, boolean isUsePercentage)
throws PortalException {
if ((commerceDiscountValue == null) ||
(commercePrice.compareTo(BigDecimal.ZERO) == 0)) {
return null;
}
CommerceDiscount commerceDiscount =
commerceDiscountLocalService.getCommerceDiscount(
commerceDiscountId);
BigDecimal discountAmount = BigDecimal.ZERO;
if (isUsePercentage) {
discountAmount = commercePrice.multiply(commerceDiscountValue);
discountAmount = discountAmount.divide(_ONE_HUNDRED);
BigDecimal maximumDiscountAmount =
commerceDiscount.getMaximumDiscountAmount();
if ((maximumDiscountAmount.compareTo(BigDecimal.ZERO) > 0) &&
(discountAmount.compareTo(maximumDiscountAmount) > 0)) {
discountAmount = commerceDiscount.getMaximumDiscountAmount();
}
}
else {
discountAmount = commerceDiscountValue;
if (commerceDiscountValue.compareTo(commercePrice) > 0) {
discountAmount = commercePrice;
}
}
RoundingMode roundingMode = RoundingMode.valueOf(
commerceCurrency.getRoundingMode());
BigDecimal discountedAmount = commercePrice.subtract(discountAmount);
BigDecimal discountPercentage = _getDiscountPercentage(
discountedAmount, commercePrice, roundingMode);
if ((currentDiscountLevel == null) ||
(discountPercentage.compareTo(currentDiscountLevel) > 0)) {
if (isUsePercentage) {
return commerceDiscountValue;
}
return discountPercentage;
}
return currentDiscountLevel;
}
private BigDecimal[] _getCommerceDiscountLevels(
String couponCode, BigDecimal commercePrice,
CommerceContext commerceContext,
List commerceDiscounts)
throws PortalException {
if (couponCode.isEmpty()) {
CommerceOrder commerceOrder = commerceContext.getCommerceOrder();
if (commerceOrder != null) {
couponCode = commerceOrder.getCouponCode();
}
}
CommerceCurrency commerceCurrency =
commerceContext.getCommerceCurrency();
BigDecimal[] levels = {
BigDecimal.ZERO, BigDecimal.ZERO, BigDecimal.ZERO, BigDecimal.ZERO
};
for (CommerceDiscount commerceDiscount : commerceDiscounts) {
String discountCouponCode = commerceDiscount.getCouponCode();
if (!_isValidCouponCode(
commerceDiscount.getCommerceDiscountId(), couponCode,
discountCouponCode, commerceContext)) {
continue;
}
if (_isValidDiscount(commerceContext, commerceDiscount)) {
String discountLevel = commerceDiscount.getLevel();
if (discountLevel.isEmpty() ||
discountLevel.equals(CommerceDiscountConstants.LEVEL_L1)) {
levels[0] = _getCommerceDiscountLevel(
levels[0], commercePrice, commerceCurrency,
commerceDiscount.getCommerceDiscountId(),
commerceDiscount.getLevel1(),
commerceDiscount.isUsePercentage());
}
if (commerceDiscount.isUsePercentage()) {
if (discountLevel.isEmpty() ||
discountLevel.equals(
CommerceDiscountConstants.LEVEL_L2)) {
levels[1] = _getCommerceDiscountLevel(
levels[1], commercePrice, commerceCurrency,
commerceDiscount.getCommerceDiscountId(),
commerceDiscount.getLevel2(),
commerceDiscount.isUsePercentage());
}
if (discountLevel.isEmpty() ||
discountLevel.equals(
CommerceDiscountConstants.LEVEL_L3)) {
levels[2] = _getCommerceDiscountLevel(
levels[2], commercePrice, commerceCurrency,
commerceDiscount.getCommerceDiscountId(),
commerceDiscount.getLevel3(),
commerceDiscount.isUsePercentage());
}
if (discountLevel.isEmpty() ||
discountLevel.equals(
CommerceDiscountConstants.LEVEL_L4)) {
levels[3] = _getCommerceDiscountLevel(
levels[3], commercePrice, commerceCurrency,
commerceDiscount.getCommerceDiscountId(),
commerceDiscount.getLevel4(),
commerceDiscount.isUsePercentage());
}
}
}
}
return levels;
}
private CommerceDiscountValue _getCommerceDiscountValue(
CommerceOrder commerceOrder, BigDecimal amount,
CommerceContext commerceContext, String discountType)
throws PortalException {
if ((amount == null) || (amount.compareTo(BigDecimal.ZERO) <= 0)) {
return null;
}
List commerceDiscounts =
getOrderCommerceDiscountByHierarchy(
commerceOrder.getCompanyId(),
commerceContext.getCommerceAccount(),
commerceContext.getCommerceChannelId(), discountType);
if (commerceDiscounts.isEmpty()) {
return null;
}
BigDecimal[] commerceDiscountLevels = _getCommerceDiscountLevels(
commerceOrder.getCouponCode(), amount, commerceContext,
commerceDiscounts);
CommerceDiscountApplicationStrategy
commerceDiscountApplicationStrategy =
_getCommerceDiscountApplicationStrategy();
BigDecimal discountedAmount =
commerceDiscountApplicationStrategy.applyCommerceDiscounts(
amount, commerceDiscountLevels);
BigDecimal currentDiscountAmount = amount.subtract(discountedAmount);
CommerceCurrency commerceCurrency =
commerceContext.getCommerceCurrency();
RoundingMode roundingMode = RoundingMode.valueOf(
commerceCurrency.getRoundingMode());
currentDiscountAmount = currentDiscountAmount.setScale(
_SCALE, roundingMode);
CommerceMoney discountAmount = _commerceMoneyFactory.create(
commerceCurrency, currentDiscountAmount);
return new CommerceDiscountValue(
0, discountAmount,
_getDiscountPercentage(discountedAmount, amount, roundingMode),
commerceDiscountLevels);
}
private CommerceDiscountValue _getCommerceDiscountValues(
BigDecimal commercePrice, int quantity,
CommerceContext commerceContext,
List commerceDiscounts)
throws PortalException {
BigDecimal[] commerceDiscountLevels = _getCommerceDiscountLevels(
StringPool.BLANK, commercePrice, commerceContext,
commerceDiscounts);
CommerceDiscountApplicationStrategy
commerceDiscountApplicationStrategy =
_getCommerceDiscountApplicationStrategy();
BigDecimal discountedAmount =
commerceDiscountApplicationStrategy.applyCommerceDiscounts(
commercePrice, commerceDiscountLevels);
BigDecimal currentDiscountAmount = commercePrice.subtract(
discountedAmount);
CommerceCurrency commerceCurrency =
commerceContext.getCommerceCurrency();
RoundingMode roundingMode = RoundingMode.valueOf(
commerceCurrency.getRoundingMode());
currentDiscountAmount = currentDiscountAmount.setScale(
_SCALE, roundingMode);
if (currentDiscountAmount.compareTo(BigDecimal.ZERO) == 0) {
return null;
}
CommerceMoney discountAmount = _commerceMoneyFactory.create(
commerceCurrency,
currentDiscountAmount.multiply(new BigDecimal(quantity)));
return new CommerceDiscountValue(
0, discountAmount,
_getDiscountPercentage(
discountedAmount, commercePrice, roundingMode),
commerceDiscountLevels);
}
private BigDecimal _getDiscountPercentage(
BigDecimal discountedAmount, BigDecimal amount,
RoundingMode roundingMode) {
double actualPrice = discountedAmount.doubleValue();
double originalPrice = amount.doubleValue();
double percentage = actualPrice / originalPrice;
BigDecimal discountPercentage = new BigDecimal(percentage);
discountPercentage = discountPercentage.multiply(_ONE_HUNDRED);
MathContext mathContext = new MathContext(
discountPercentage.precision(), roundingMode);
return _ONE_HUNDRED.subtract(discountPercentage, mathContext);
}
private boolean _isValidCouponCode(
long commerceDiscountId, String couponCode,
String discountCouponCode, CommerceContext commerceContext)
throws PortalException {
long commerceAccountId = 0;
CommerceAccount commerceAccount = commerceContext.getCommerceAccount();
if (commerceAccount != null) {
commerceAccountId = commerceAccount.getCommerceAccountId();
}
if ((Validator.isBlank(discountCouponCode) ||
Objects.equals(couponCode, discountCouponCode)) &&
_commerceDiscountUsageEntryLocalService.
validateDiscountLimitationUsage(
commerceAccountId, commerceDiscountId)) {
return true;
}
return false;
}
private boolean _isValidDiscount(
CommerceContext commerceContext, CommerceDiscount commerceDiscount)
throws PortalException {
List commerceDiscountRules =
_commerceDiscountRuleLocalService.getCommerceDiscountRules(
commerceDiscount.getCommerceDiscountId(), QueryUtil.ALL_POS,
QueryUtil.ALL_POS, null);
if (commerceDiscountRules.isEmpty()) {
return true;
}
for (CommerceDiscountRule commerceDiscountRule :
commerceDiscountRules) {
CommerceDiscountRuleType commerceDiscountRuleType =
_commerceDiscountRuleTypeRegistry.getCommerceDiscountRuleType(
commerceDiscountRule.getType());
boolean commerceDiscountRuleTypeEvaluation =
commerceDiscountRuleType.evaluate(
commerceDiscountRule, commerceContext);
if (!commerceDiscountRuleTypeEvaluation &&
commerceDiscount.isRulesConjunction()) {
return false;
}
else if (commerceDiscountRuleTypeEvaluation &&
!commerceDiscount.isRulesConjunction()) {
return true;
}
}
return commerceDiscount.isRulesConjunction();
}
private static final BigDecimal _ONE_HUNDRED = BigDecimal.valueOf(100);
private static final int _SCALE = 10;
private static final Log _log = LogFactoryUtil.getLog(
CommerceDiscountCalculationV2Impl.class);
private final Map
_commerceDiscountApplicationStrategyMap = new ConcurrentHashMap<>();
@Reference
private CommerceDiscountRuleLocalService _commerceDiscountRuleLocalService;
@Reference
private CommerceDiscountRuleTypeRegistry _commerceDiscountRuleTypeRegistry;
@Reference
private CommerceDiscountUsageEntryLocalService
_commerceDiscountUsageEntryLocalService;
@Reference
private CommerceMoneyFactory _commerceMoneyFactory;
@Reference
private CommercePriceListDiscountRelLocalService
_commercePriceListDiscountRelLocalService;
@Reference
private ConfigurationProvider _configurationProvider;
@Reference
private CPInstanceLocalService _cpInstanceLocalService;
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