com.liferay.commerce.discount.internal.CommerceDiscountCalculationV2Impl Maven / Gradle / Ivy
/**
* SPDX-FileCopyrightText: (c) 2000 Liferay, Inc. https://liferay.com
* SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06
*/
package com.liferay.commerce.discount.internal;
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.application.strategy.CommerceDiscountApplicationStrategyRegistry;
import com.liferay.commerce.discount.constants.CommerceDiscountConstants;
import com.liferay.commerce.discount.model.CommerceDiscount;
import com.liferay.commerce.discount.service.CommerceDiscountUsageEntryLocalService;
import com.liferay.commerce.discount.validator.helper.CommerceDiscountValidatorHelper;
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.commerce.util.CommerceUtil;
import com.liferay.petra.function.transform.TransformUtil;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.configuration.module.configuration.ConfigurationProvider;
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.util.BigDecimalUtil;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;
import java.util.List;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
/**
* @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, BigDecimal quantity, BigDecimal productUnitPrice,
String unitOfMeasureKey, CommerceContext commerceContext)
throws PortalException {
return getProductCommerceDiscountValue(
cpInstanceId, 0, quantity, productUnitPrice, unitOfMeasureKey,
commerceContext);
}
@Override
public CommerceDiscountValue getProductCommerceDiscountValue(
long cpInstanceId, long commercePriceListId, BigDecimal quantity,
BigDecimal productUnitPrice, String unitOfMeasureKey,
CommerceContext commerceContext)
throws PortalException {
CPInstance cpInstance = _cpInstanceLocalService.getCPInstance(
cpInstanceId);
List commercePriceListDiscountRels =
_commercePriceListDiscountRelLocalService.
getCommercePriceListDiscountRels(commercePriceListId);
if ((commercePriceListDiscountRels != null) &&
!commercePriceListDiscountRels.isEmpty()) {
List commerceDiscounts =
commerceDiscountLocalService.getPriceListCommerceDiscounts(
TransformUtil.transformToLongArray(
commercePriceListDiscountRels,
CommercePriceListDiscountRel::getCommerceDiscountId),
cpInstance.getCPDefinitionId());
if (commerceDiscounts.isEmpty()) {
return null;
}
return _getCommerceDiscountValues(
productUnitPrice, quantity, commerceContext, commerceDiscounts);
}
long commerceOrderTypeId = 0;
CommerceOrder commerceOrder = commerceContext.getCommerceOrder();
if (commerceOrder != null) {
commerceOrderTypeId = commerceOrder.getCommerceOrderTypeId();
}
List commerceDiscounts =
getProductCommerceDiscountByHierarchy(
cpInstance.getCompanyId(), commerceContext, commerceOrderTypeId,
cpInstance.getCPDefinitionId(), cpInstanceId, unitOfMeasureKey);
if (commerceDiscounts.isEmpty()) {
return null;
}
return _getCommerceDiscountValues(
productUnitPrice, quantity, commerceContext, commerceDiscounts);
}
private CommerceDiscountApplicationStrategy
_getCommerceDiscountApplicationStrategy()
throws ConfigurationException {
CommercePricingConfiguration commercePricingConfiguration =
_configurationProvider.getSystemConfiguration(
CommercePricingConfiguration.class);
String commerceDiscountApplicationStrategyKey =
commercePricingConfiguration.commerceDiscountApplicationStrategy();
CommerceDiscountApplicationStrategy
commerceDiscountApplicationStrategy =
_commerceDiscountApplicationStrategyRegistry.get(
commerceDiscountApplicationStrategyKey);
if (commerceDiscountApplicationStrategy == null) {
if (_log.isWarnEnabled()) {
_log.warn(
"No commerce discount application strategy specified for " +
commerceDiscountApplicationStrategyKey);
}
}
return commerceDiscountApplicationStrategy;
}
private BigDecimal _getCommerceDiscountLevel(
BigDecimal currentDiscountLevel, BigDecimal commercePrice,
CommerceCurrency commerceCurrency, long commerceDiscountId,
BigDecimal commerceDiscountValue, boolean usePercentage)
throws PortalException {
if ((commerceDiscountValue == null) ||
BigDecimalUtil.isZero(commercePrice)) {
return null;
}
BigDecimal discountAmount = BigDecimal.ZERO;
if (usePercentage) {
discountAmount = commercePrice.multiply(commerceDiscountValue);
discountAmount = discountAmount.divide(_ONE_HUNDRED);
CommerceDiscount commerceDiscount =
commerceDiscountLocalService.getCommerceDiscount(
commerceDiscountId);
BigDecimal maximumDiscountAmount =
commerceDiscount.getMaximumDiscountAmount();
if (BigDecimalUtil.gt(maximumDiscountAmount, BigDecimal.ZERO) &&
BigDecimalUtil.gt(discountAmount, maximumDiscountAmount)) {
discountAmount = commerceDiscount.getMaximumDiscountAmount();
}
}
else {
discountAmount = commerceDiscountValue;
if (BigDecimalUtil.gt(commerceDiscountValue, commercePrice)) {
discountAmount = commercePrice;
}
}
RoundingMode roundingMode = RoundingMode.valueOf(
commerceCurrency.getRoundingMode());
BigDecimal discountedAmount = commercePrice.subtract(discountAmount);
BigDecimal discountPercentage = _getDiscountPercentage(
discountedAmount, commercePrice, roundingMode);
if ((currentDiscountLevel == null) ||
BigDecimalUtil.gt(discountPercentage, currentDiscountLevel)) {
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 target)
throws PortalException {
if ((amount == null) || BigDecimalUtil.lte(amount, BigDecimal.ZERO)) {
return null;
}
List commerceDiscounts =
getOrderCommerceDiscountByHierarchy(
commerceOrder.getCompanyId(), commerceContext,
commerceOrder.getCommerceOrderTypeId(), target);
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 discountAmountCommerceMoney =
_commerceMoneyFactory.create(
commerceCurrency, currentDiscountAmount);
return new CommerceDiscountValue(
0, discountAmountCommerceMoney,
_getDiscountPercentage(discountedAmount, amount, roundingMode),
commerceDiscountLevels);
}
private CommerceDiscountValue _getCommerceDiscountValues(
BigDecimal commercePrice, BigDecimal 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 (BigDecimalUtil.isZero(currentDiscountAmount)) {
return null;
}
CommerceMoney discountAmountCommerceMoney =
_commerceMoneyFactory.create(
commerceCurrency, currentDiscountAmount.multiply(quantity));
return new CommerceDiscountValue(
0, discountAmountCommerceMoney,
_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 {
if ((Validator.isBlank(discountCouponCode) ||
StringUtil.equalsIgnoreCase(couponCode, discountCouponCode)) &&
_commerceDiscountUsageEntryLocalService.
validateDiscountLimitationUsage(
CommerceUtil.getCommerceAccountId(commerceContext),
commerceDiscountId)) {
return true;
}
return false;
}
private boolean _isValidDiscount(
CommerceContext commerceContext, CommerceDiscount commerceDiscount)
throws PortalException {
return _commerceDiscountValidatorHelper.isValid(
commerceContext, commerceDiscount,
CommerceDiscountConstants.VALIDATOR_TYPE_POST_QUALIFICATION);
}
private static final BigDecimal _ONE_HUNDRED = BigDecimal.valueOf(100);
private static final int _SCALE = 10;
private static final Log _log = LogFactoryUtil.getLog(
CommerceDiscountCalculationV2Impl.class);
@Reference
private CommerceDiscountApplicationStrategyRegistry
_commerceDiscountApplicationStrategyRegistry;
@Reference
private CommerceDiscountUsageEntryLocalService
_commerceDiscountUsageEntryLocalService;
@Reference
private CommerceDiscountValidatorHelper _commerceDiscountValidatorHelper;
@Reference
private CommerceMoneyFactory _commerceMoneyFactory;
@Reference
private CommercePriceListDiscountRelLocalService
_commercePriceListDiscountRelLocalService;
@Reference
private ConfigurationProvider _configurationProvider;
@Reference
private CPInstanceLocalService _cpInstanceLocalService;
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