/*
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2018 Ricardo Mariaca and the Dynamic Reports Contributors
 * http://www.dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with DynamicReports. If not, see <http://www.gnu.org/licenses/>.
 */
package cn.myapps.report.examples.miscellaneous;

import cn.myapps.report.examples.Templates;
import net.sf.dynamicreports.report.builder.column.TextColumnBuilder;
import net.sf.dynamicreports.report.builder.component.TextFieldBuilder;
import net.sf.dynamicreports.report.builder.expression.AbstractComplexExpression;
import net.sf.dynamicreports.report.constant.Calculation;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;

import java.math.BigDecimal;
import java.util.List;

import static net.sf.dynamicreports.report.builder.DynamicReports.cmp;
import static net.sf.dynamicreports.report.builder.DynamicReports.col;
import static net.sf.dynamicreports.report.builder.DynamicReports.exp;
import static net.sf.dynamicreports.report.builder.DynamicReports.report;
import static net.sf.dynamicreports.report.builder.DynamicReports.type;
import static net.sf.dynamicreports.report.builder.DynamicReports.variable;

/**
 * <p>ResourceBundleReport class.</p>
 *
 * @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
 * @version $Id: $Id
 */
public class ResourceBundleReport {

    /**
     * <p>Constructor for ResourceBundleReport.</p>
     */
    public ResourceBundleReport() {
        build();
    }

    /**
     * <p>main.</p>
     *
     * @param args an array of {@link java.lang.String} objects.
     */
    public static void main(String[] args) {
        new ResourceBundleReport();
    }

    private void build() {
        try {
            TextColumnBuilder<String> itemColumn = col.column("item", type.stringType()).setTitle(exp.message("item_title"));
            TextColumnBuilder<Integer> quantityColumn = col.column("quantity", type.integerType()).setTitle(exp.message("quantity_title"));
            TextColumnBuilder<BigDecimal> priceColumn = col.column("unitprice", type.bigDecimalType()).setTitle(exp.message("unitprice_title"));

            TextFieldBuilder<String> title = cmp.text(exp.message("report_title")).setStyle(Templates.bold12CenteredStyle);
            TextFieldBuilder<String> subtitle = cmp.text(new SubtitleExpression()).setStyle(Templates.bold12CenteredStyle);

            report().setTemplate(Templates.reportTemplate)
                    .setResourceBundle(ResourceBundleReport.class.getName())
                    .columns(itemColumn, quantityColumn, priceColumn)
                    .title(Templates.createTitleComponent("ResourceBundle"), title, subtitle)
                    .pageFooter(Templates.footerComponent)
                    .setDataSource(createDataSource())
                    .show();
        } catch (DRException e) {
            e.printStackTrace();
        }
    }

    private JRDataSource createDataSource() {
        DRDataSource dataSource = new DRDataSource("item", "quantity", "unitprice");
        for (int i = 0; i < 10; i++) {
            dataSource.add("Book", (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
        }
        return dataSource;
    }

    public class SubtitleExpression extends AbstractComplexExpression<String> {
        private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

        public SubtitleExpression() {
            addExpression(variable("quantity", Integer.class, Calculation.LOWEST));
            addExpression(variable("quantity", Integer.class, Calculation.HIGHEST));
        }

        @Override
        public String evaluate(List<?> values, ReportParameters reportParameters) {
            return reportParameters.getMessage("report_subtitle", new Object[] {values.get(0), values.get(1)});
        }
    }
}
