/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.*;
import java.sql.Timestamp;
import org.ofbiz.base.util.*;
import org.ofbiz.entity.*;
import org.ofbiz.entity.util.*;
import org.ofbiz.entity.condition.*;
import org.ofbiz.entity.transaction.*;

delegator = request.getAttribute("delegator");

lookupFlag = request.getParameter("lookupFlag");
shipmentTypeId = request.getParameter("shipmentTypeId");
originFacilityId = request.getParameter("originFacilityId");
destinationFacilityId = request.getParameter("destinationFacilityId");
statusId = request.getParameter("statusId");
minDate = request.getParameter("minDate");
maxDate = request.getParameter("maxDate");

// set the page parameters
viewIndex = 1;
try {
    viewIndex = Integer.valueOf((String) request.getParameter("VIEW_INDEX")).intValue();
} catch (Exception e) {
    viewIndex = 1;
}
context.put("viewIndex", viewIndex);

viewSize = 20;
try {
    viewSize = Integer.valueOf((String) request.getParameter("VIEW_SIZE")).intValue();
} catch (Exception e) {
    viewSize = 20;
}
context.put("viewSize", viewSize);

findShipmentExprs = new LinkedList();
paramListBuffer = new StringBuffer();
if (UtilValidate.isNotEmpty(shipmentTypeId)) {
    paramListBuffer.append("&shipmentTypeId=");
    paramListBuffer.append(shipmentTypeId);
    findShipmentExprs.add(new EntityExpr("shipmentTypeId", EntityOperator.EQUALS, shipmentTypeId));

    currentShipmentType = delegator.findByPrimaryKeyCache("ShipmentType", UtilMisc.toMap("shipmentTypeId", shipmentTypeId));
    context.put("currentShipmentType", currentShipmentType);
}
if (UtilValidate.isNotEmpty(originFacilityId)) {
    paramListBuffer.append("&originFacilityId=");
    paramListBuffer.append(originFacilityId);
    findShipmentExprs.add(new EntityExpr("originFacilityId", EntityOperator.EQUALS, originFacilityId));

    currentOriginFacility = delegator.findByPrimaryKeyCache("Facility", UtilMisc.toMap("facilityId", originFacilityId));
    context.put("currentOriginFacility", currentOriginFacility);
}
if (UtilValidate.isNotEmpty(destinationFacilityId)) {
    paramListBuffer.append("&destinationFacilityId=");
    paramListBuffer.append(destinationFacilityId);
    findShipmentExprs.add(new EntityExpr("destinationFacilityId", EntityOperator.EQUALS, destinationFacilityId));

    currentDestinationFacility = delegator.findByPrimaryKeyCache("Facility", UtilMisc.toMap("facilityId", destinationFacilityId));
    context.put("currentDestinationFacility", currentDestinationFacility);
}
if (UtilValidate.isNotEmpty(statusId)) {
    paramListBuffer.append("&statusId=");
    paramListBuffer.append(statusId);
    findShipmentExprs.add(new EntityExpr("statusId", EntityOperator.EQUALS, statusId));

    currentStatus = delegator.findByPrimaryKeyCache("StatusItem", UtilMisc.toMap("statusId", statusId));
    context.put("currentStatus", currentStatus);
}
if (minDate != null && minDate.length() > 8) {            
    minDate = minDate.trim();
    if (minDate.length() < 14) minDate = minDate + " " + "00:00:00.000";
    paramListBuffer.append("&minDate=");
    paramListBuffer.append(minDate);
    findShipmentExprs.add(new EntityExpr("estimatedShipDate", EntityOperator.GREATER_THAN_EQUAL_TO, ObjectType.simpleTypeConvert(minDate, "Timestamp", null, null)));        
}
if (maxDate != null && maxDate.length() > 8) {
    maxDate = maxDate.trim();
    if (maxDate.length() < 14) maxDate = maxDate + " " + "23:59:59.999";
    paramListBuffer.append("&maxDate=");
    paramListBuffer.append(maxDate);
    findShipmentExprs.add(new EntityExpr("estimatedShipDate", EntityOperator.LESS_THAN_EQUAL_TO, ObjectType.simpleTypeConvert(maxDate, "Timestamp", null, null)));
}

if ("Y".equals(lookupFlag)) {
    context.put("paramList", paramListBuffer.toString());

    if (findShipmentExprs.size() > 0) {
        EntityFindOptions findOpts = new EntityFindOptions(true, EntityFindOptions.TYPE_SCROLL_INSENSITIVE, EntityFindOptions.CONCUR_READ_ONLY, true);
        mainCond = new EntityConditionList(findShipmentExprs, EntityOperator.AND);
        List orderBy = UtilMisc.toList("-estimatedShipDate");

        boolean beganTransaction = false;
        try {
            beganTransaction = TransactionUtil.begin();

            // using list iterator
            EntityListIterator orli = delegator.findListIteratorByCondition("Shipment", mainCond, null, null, orderBy, findOpts);

            // get the indexes for the partial list
            lowIndex = (((viewIndex - 1) * viewSize) + 1);
            highIndex = viewIndex * viewSize;

            // attempt to get the full size
            orli.last();
            shipmentListSize = orli.currentIndex();
            if (highIndex > shipmentListSize) {
                highIndex = shipmentListSize;
            }

            // get the partial list for this page
            orli.beforeFirst();
            if (shipmentListSize > 0) {
                shipmentList = orli.getPartialList(lowIndex, viewSize);
            } else {
                shipmentList = new ArrayList();
            }

            // close the list iterator
            orli.close();
        } catch (GenericEntityException e) {
            String errMsg = "Failure in operation, rolling back transaction";
            Debug.logError(e, errMsg, module);
            try {
                // only rollback the transaction if we started one...
                TransactionUtil.rollback(beganTransaction, errMsg, e);
            } catch (GenericEntityException e2) {
                Debug.logError(e2, "Could not rollback transaction: " + e2.toString(), module);
            }
            // after rolling back, rethrow the exception
            throw e;
        } finally {
            // only commit the transaction if we started one... this will throw an exception if it fails
            TransactionUtil.commit(beganTransaction);
        }
    } else {
        shipmentList = new ArrayList();
        shipmentListSize = 0;
        highIndex = 0;
        lowIndex = 0;
    }

    context.put("shipmentList", shipmentList);
    context.put("listSize", shipmentListSize);
    context.put("highIndex", highIndex);
    context.put("lowIndex", lowIndex);
}

// =============== Prepare the Option Data for the Find Form =================

shipmentTypes = delegator.findAll("ShipmentType", UtilMisc.toList("description"));
context.put("shipmentTypes", shipmentTypes);

facilities = delegator.findAll("Facility", UtilMisc.toList("facilityName"));
context.put("facilities", facilities);

// since purchase and sales shipments have different status codes, we'll need to make two separate lists
shipmentStatuses = delegator.findByAnd("StatusItem", UtilMisc.toMap("statusTypeId", "SHIPMENT_STATUS"), UtilMisc.toList("sequenceId"));
context.put("shipmentStatuses", shipmentStatuses);
purchaseShipmentStatuses = delegator.findByAnd("StatusItem", UtilMisc.toMap("statusTypeId", "PURCH_SHIP_STATUS"), UtilMisc.toList("sequenceId"));
context.put("purchaseShipmentStatuses", purchaseShipmentStatuses);

// create the fromDate for calendar
fromCal = Calendar.getInstance();
fromCal.setTimeInMillis(System.currentTimeMillis());
//fromCal.set(Calendar.DAY_OF_WEEK, fromCal.getActualMinimum(Calendar.DAY_OF_WEEK));
fromCal.set(Calendar.HOUR_OF_DAY, fromCal.getActualMinimum(Calendar.HOUR_OF_DAY));
fromCal.set(Calendar.MINUTE, fromCal.getActualMinimum(Calendar.MINUTE));
fromCal.set(Calendar.SECOND, fromCal.getActualMinimum(Calendar.SECOND));
fromCal.set(Calendar.MILLISECOND, fromCal.getActualMinimum(Calendar.MILLISECOND));
fromTs = new Timestamp(fromCal.getTimeInMillis());
fromStr = fromTs.toString();
fromStr = fromStr.substring(0, fromStr.indexOf('.'));
context.put("fromDateStr", fromStr);

// create the thruDate for calendar
toCal = Calendar.getInstance();
toCal.setTimeInMillis(System.currentTimeMillis());
//toCal.set(Calendar.DAY_OF_WEEK, toCal.getActualMaximum(Calendar.DAY_OF_WEEK));
toCal.set(Calendar.HOUR_OF_DAY, toCal.getActualMaximum(Calendar.HOUR_OF_DAY));
toCal.set(Calendar.MINUTE, toCal.getActualMaximum(Calendar.MINUTE));
toCal.set(Calendar.SECOND, toCal.getActualMaximum(Calendar.SECOND));
toCal.set(Calendar.MILLISECOND, toCal.getActualMaximum(Calendar.MILLISECOND));
toTs = new Timestamp(toCal.getTimeInMillis());
toStr = toTs.toString();
context.put("thruDateStr", toStr);