# OrderDAO.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception. You should have recieved a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "https://www.silverpeas.org/legal/floss_exception.html"
     *
     * This program 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 Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program. If not, see <https://www.gnu.org/licenses/>.
     */
    package org.silverpeas.components.gallery.dao;

    import org.silverpeas.components.gallery.model.MediaOrderCriteria;
    import org.silverpeas.components.gallery.model.Order;
    import org.silverpeas.components.gallery.model.OrderRow;
    import org.silverpeas.core.persistence.jdbc.sql.JdbcSqlQuery;

    import java.sql.SQLException;
    import java.sql.Timestamp;
    import java.util.Collection;
    import java.util.Date;
    import java.util.List;

    import static org.silverpeas.core.persistence.jdbc.sql.JdbcSqlQuery.*;
    import static org.silverpeas.core.persistence.jdbc.DBUtil.getUniqueId;

    public class OrderDAO {

      private static final String GALLERY_ORDER_TABLE = "SC_Gallery_Order";
      private static final String GALLERY_ORDER_DETAIL_TABLE = "SC_Gallery_OrderDetail";
      private static final String ORDER_ID_CRITERION = "orderId = ?";

      private OrderDAO() {

      }

      /**
       * Persists a new order.
       * @param mediaIds the identifier list of media to attach to a new order.
       * @param userId the identifier of the user that is creating the order.
       * @param instanceId the identifier of a component instance.
       * @return the identifier of the new order.
       * @throws SQLException
       */
      public static String createOrder(Collection<String> mediaIds, String userId, String instanceId)
          throws SQLException {

        // New order
        String uuid = getUniqueId();
        JdbcSqlQuery insert = createInsertFor(GALLERY_ORDER_TABLE);
        insert.addInsertParam("orderId", uuid);
        insert.addInsertParam("userId", userId);
        insert.addInsertParam("instanceId", instanceId);
        insert.addInsertParam("createDate", new Timestamp(new Date().getTime()));
        insert.execute();

        // Details of the order
        for (String mediaId : mediaIds) {
          addOrderMedia(mediaId, uuid, instanceId);
        }

        return uuid;
      }

      /**
       * Adds a media to an order.
       * @param mediaId the identifier of a media.
       * @param orderId the identifier of an order.
       * @param instanceId the identifier of a component instance.
       * @throws SQLException
       */
      private static void addOrderMedia(String mediaId, String orderId, String instanceId)
          throws SQLException {
        JdbcSqlQuery insert = createInsertFor(GALLERY_ORDER_DETAIL_TABLE);
        insert.addInsertParam("orderId", orderId);
        insert.addInsertParam("mediaId", mediaId);
        insert.addInsertParam("instanceId", instanceId);
        insert.execute();
      }

      /**
       * Updates an order and its details.
       * @param order an order.
       * @throws SQLException
       */
      public static void updateOrder(Order order) throws SQLException {
        updateOrderStatus(order);
        List<OrderRow> rows = order.getRows();
        for (OrderRow row : rows) {
          JdbcSqlQuery update = createUpdateFor(GALLERY_ORDER_DETAIL_TABLE);
          update.addUpdateParam("downloadDecision", row.getDownloadDecision());
          update.where("orderId = ? and mediaId = ?", row.getOrderId(), row.getMediaId());
          update.execute();
        }
      }

      /**
       * Updates the status of an order.
       * @param order an order.
       * @throws SQLException
       */
      private static void updateOrderStatus(Order order) throws SQLException {
        JdbcSqlQuery update = createUpdateFor(GALLERY_ORDER_TABLE);
        update.addUpdateParam("processDate", new Timestamp(new Date().getTime()));
        update.addUpdateParam("processUser", order.getProcessUserId());
        update.where(ORDER_ID_CRITERION, order.getOrderId());
        update.execute();
      }

      /**
       * Deletes an order and its details.
       * @param order an order.
       * @throws SQLException
       */
      public static void deleteOrder(Order order) throws SQLException {
        createDeleteFor(GALLERY_ORDER_TABLE).where(ORDER_ID_CRITERION, order.getOrderId()).execute();
        Collection<OrderRow> orderRows = getAllOrderDetails(order.getOrderId());
        if (orderRows != null) {
          for (final OrderRow row : orderRows) {
            deleteMediaFromOrder(row.getMediaId(), order.getOrderId());
          }
        }
      }

      /**
       * Deletes a media for an order.
       * @param mediaId the identifier of a media.
       * @param orderId the identifier of an order.
       * @throws SQLException
       */
      private static void deleteMediaFromOrder(String mediaId, String orderId) throws SQLException {
        createDeleteFor(GALLERY_ORDER_DETAIL_TABLE).where("mediaId = ? and orderId = ?", mediaId, orderId)
            .execute();
      }

      /**
       * Gets all medias of an order.
       * @param orderId identifier of an order.
       * @return the list of details related of the given identifier of order.
       * @throws SQLException
       */
      public static List<OrderRow> getAllOrderDetails(final String orderId) throws SQLException {
        return createSelect(
            "mediaId, instanceId, downloadDate, downloadDecision from SC_Gallery_OrderDetail")
            .where(ORDER_ID_CRITERION, orderId).execute(row -> {
              String mediaId = row.getString(1);
              String instanceId = row.getString(2);
              OrderRow orderRow = new OrderRow(orderId, mediaId, instanceId);
              orderRow.setDownloadDate(row.getTimestamp(3));
              orderRow.setDownloadDecision(row.getString(4));
              return orderRow;
            });
      }

      /**
       * Updates a row of an order.
       * @param row details of an order.
       * @throws SQLException
       */
      public static void updateOrderRow(OrderRow row) throws SQLException {
        JdbcSqlQuery update = createUpdateFor(GALLERY_ORDER_DETAIL_TABLE);
        update.addUpdateParam("downloadDate", new Timestamp(new Date().getTime()));
        update.addUpdateParam("downloadDecision", row.getDownloadDecision());
        update.where("orderId = ? and mediaId = ?", row.getOrderId(), row.getMediaId());
        update.execute();
      }

      /**
       * Gets a unique result.
       * @param criteria the criteria that permits to filter the result.
       * @return the unique result of the query performed.
       * @throws SQLException
       */
      public static Order getByCriteria(MediaOrderCriteria criteria) throws SQLException {
        return unique(findByCriteria(criteria));
      }

      /**
       * Finds orders from the specified criteria.
       * @param criteria the criteria that permits to filter the result.
       * @return a list of orders, empty if no order found.
       */
      public static List<Order> findByCriteria(MediaOrderCriteria criteria) throws SQLException {

        MediaOrderSQLQueryBuilder queryBuilder = new MediaOrderSQLQueryBuilder();
        criteria.processWith(queryBuilder);

        JdbcSqlQuery queryBuild = queryBuilder.result();

        return queryBuilder.orderingResult(queryBuild.execute(row -> {
          Order order = new Order(row.getString(1));
          order.setUserId(row.getString(2));
          order.setInstanceId(row.getString(3));
          order.setCreationDate(row.getTimestamp(4));
          order.setProcessDate(row.getTimestamp(5));
          order.setProcessUserId(row.getString(6));
          order.setRows(getAllOrderDetails(order.getOrderId()));
          return order;
        }));
      }
    }