com.liferay.commerce.pricing.web.internal.display.context.CartTotalCommerceDiscountRuleDisplayContext Maven / Gradle / Ivy

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/**
 * 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.pricing.web.internal.display.context;

import com.liferay.commerce.currency.model.CommerceCurrency;
import com.liferay.commerce.currency.service.CommerceCurrencyLocalService;
import com.liferay.commerce.discount.model.CommerceDiscountRule;
import com.liferay.commerce.discount.service.CommerceDiscountRuleService;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.bean.BeanParamUtil;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.WebKeys;

import java.math.BigDecimal;

import javax.servlet.http.HttpServletRequest;

/**
 * @author Alessio Antonio Rendina
 */
public class CartTotalCommerceDiscountRuleDisplayContext {

	public CartTotalCommerceDiscountRuleDisplayContext(
		CommerceCurrencyLocalService commerceCurrencyLocalService,
		CommerceDiscountRuleService commerceDiscountRuleService,
		HttpServletRequest httpServletRequest) {

		_commerceCurrencyLocalService = commerceCurrencyLocalService;
		_commerceDiscountRuleService = commerceDiscountRuleService;
		_httpServletRequest = httpServletRequest;
	}

	public CommerceDiscountRule getCommerceDiscountRule()
		throws PortalException {

		if (_commerceDiscountRule != null) {
			return _commerceDiscountRule;
		}

		long commerceDiscountRuleId = ParamUtil.getLong(
			_httpServletRequest, "commerceDiscountRuleId");

		if (commerceDiscountRuleId > 0) {
			_commerceDiscountRule =
				_commerceDiscountRuleService.getCommerceDiscountRule(
					commerceDiscountRuleId);
		}

		return _commerceDiscountRule;
	}

	public String getDefaultCommerceCurrencyCode() {
		CommerceCurrency commerceCurrency = getCommerceCurrency();

		if (commerceCurrency == null) {
			return StringPool.BLANK;
		}

		return commerceCurrency.getCode();
	}

	public String getTypeSettings() throws Exception {
		CommerceDiscountRule commerceDiscountRule = getCommerceDiscountRule();

		if (commerceDiscountRule == null) {
			return StringPool.BLANK;
		}

		String type = BeanParamUtil.getString(
			commerceDiscountRule, _httpServletRequest, "type");

		String typeSettings = commerceDiscountRule.getSettingsProperty(type);

		CommerceCurrency commerceCurrency = getCommerceCurrency();

		if (commerceCurrency == null) {
			return typeSettings;
		}

		if (typeSettings == null) {
			return null;
		}

		BigDecimal value = new BigDecimal(typeSettings);

		value = commerceCurrency.round(value);

		return value.toPlainString();
	}

	protected CommerceCurrency getCommerceCurrency() {
		ThemeDisplay themeDisplay =
			(ThemeDisplay)_httpServletRequest.getAttribute(
				WebKeys.THEME_DISPLAY);

		return _commerceCurrencyLocalService.fetchPrimaryCommerceCurrency(
			themeDisplay.getCompanyId());
	}

	private final CommerceCurrencyLocalService _commerceCurrencyLocalService;
	private CommerceDiscountRule _commerceDiscountRule;
	private final CommerceDiscountRuleService _commerceDiscountRuleService;
	private final HttpServletRequest _httpServletRequest;

}