/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                       *
 * Copyright (C) 1999-2006 Adempiere, Inc. All Rights Reserved.               *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. 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 General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 * Copyright (C) 2003-2007 e-Evolution,SC. All Rights Reserved.               *
 * Contributor(s): Victor Perez www.e-evolution.com                           *
 *****************************************************************************/
 
package org.eevolution.model;

import java.io.File;
import java.math.BigDecimal;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.logging.Level;

import org.adempiere.exceptions.AdempiereException;
import org.adempiere.exceptions.NegativeInventoryDisallowedException;
import org.compiere.model.MBPartner;
import org.compiere.model.MBPartnerLocation;
import org.compiere.model.MDocType;
import org.compiere.model.MLocator;
import org.compiere.model.MMovement;
import org.compiere.model.MPeriod;
import org.compiere.model.MProduct;
import org.compiere.model.MProject;
import org.compiere.model.MRefList;
import org.compiere.model.MStorageOnHand;
import org.compiere.model.MUser;
import org.compiere.model.ModelValidationEngine;
import org.compiere.model.ModelValidator;
import org.compiere.model.PO;
import org.compiere.model.Query;
import org.compiere.print.ReportEngine;
import org.compiere.process.DocAction;
import org.compiere.process.DocumentEngine;
import org.compiere.util.DB;
import org.compiere.util.Env;
import org.compiere.util.Msg;
import org.compiere.util.Util;

/**
 *  Order Distribution Model.
 * 	Please do not set DocStatus and C_DocType_ID directly. 
 * 	They are set in the process() method. 
 * 	Use DocAction and C_DocTypeTarget_ID instead.
 *
 *  @author victor.perez@e-evolution.com, e-Evolution http://www.e-evolution.com
 *			<li> Original contributor of Distribution Functionality
 * 			<li> FR [ 2520591 ] Support multiples calendar for Org 
 *			@see https://sourceforge.net/p/adempiere/feature-requests/631/ 
 */
public class MDDOrder extends X_DD_Order implements DocAction
{
	/**
	 * 
	 */
	private static final long serialVersionUID = -5997157712614274458L;

	/**
	 * 	Create new Order by copying
	 * 	@param from order
	 * 	@param dateDoc date of the document date
	 * 	@param C_DocTypeTarget_ID target document type
	 * 	@param isSOTrx sales order 
	 * 	@param counter create counter links
	 *	@param copyASI copy line attributes Attribute Set Instance, Resaouce Assignment
	 * 	@param trxName trx
	 *	@return Distribution Order
	 */
	public static MDDOrder copyFrom (MDDOrder from, Timestamp dateDoc, 
		int C_DocTypeTarget_ID, boolean isSOTrx, boolean counter, boolean copyASI, 
		String trxName)
	{
		MDDOrder to = new MDDOrder (from.getCtx(), 0, trxName);
		to.set_TrxName(trxName);
		PO.copyValues(from, to, from.getAD_Client_ID(), from.getAD_Org_ID());
		to.set_ValueNoCheck ("DD_Order_ID", I_ZERO);
		to.set_ValueNoCheck ("DocumentNo", null);
		//
		to.setDocStatus (DOCSTATUS_Drafted);		//	Draft
		to.setDocAction(DOCACTION_Complete);
		//
		to.setC_DocType_ID(0);
		to.setIsSOTrx(isSOTrx);
		//
		to.setIsSelected (false);
		to.setDateOrdered (dateDoc);
		to.setDatePromised (dateDoc);	//	assumption
		to.setDatePrinted(null);
		to.setIsPrinted (false);
		//
		to.setIsApproved (false);
		//
		to.setIsDelivered(false);
		to.setPosted (false);
		to.setProcessed (false);
		if (counter)
			to.setRef_Order_ID(from.getDD_Order_ID());
		else
			to.setRef_Order_ID(0);
		//
		if (!to.save(trxName))
			throw new IllegalStateException("Could not create Order");
		if (counter)
			from.setRef_Order_ID(to.getDD_Order_ID());

		if (to.copyLinesFrom(from, counter, copyASI) == 0)
			throw new IllegalStateException("Could not create Order Lines");
		
		return to;
	}	//	copyFrom
	
	
    /**
    * UUID based Constructor
    * @param ctx  Context
    * @param DD_Order_UU  UUID key
    * @param trxName Transaction
    */
    public MDDOrder(Properties ctx, String DD_Order_UU, String trxName) {
        super(ctx, DD_Order_UU, trxName);
		if (Util.isEmpty(DD_Order_UU))
			setInitialDefaults();
    }

	/**************************************************************************
	 *  Default Constructor
	 *  @param ctx context
	 *  @param  DD_Order_ID    order to load, (0 create new order)
	 *  @param trxName trx name
	 */
	public MDDOrder(Properties ctx, int DD_Order_ID, String trxName)
	{
		super (ctx, DD_Order_ID, trxName);
		//  New
		if (DD_Order_ID == 0)
			setInitialDefaults();
	}	//	MDDOrder

	/**
	 * Set the initial defaults for a new record
	 */
	private void setInitialDefaults() {
		setDocStatus(DOCSTATUS_Drafted);
		setDocAction (DOCACTION_Prepare);
		//
		setDeliveryRule (DELIVERYRULE_Availability);
		setFreightCostRule (FREIGHTCOSTRULE_FreightIncluded);
		setPriorityRule (PRIORITYRULE_Medium);
		setDeliveryViaRule (DELIVERYVIARULE_Pickup);
		//
		setIsSelected (false);
		setIsSOTrx (true);
		setIsDropShip(false);
		setSendEMail (false);
		//
		setIsApproved(false);
		setIsPrinted(false);
		setIsDelivered(false);
		//
		super.setProcessed(false);
		setProcessing(false);
		setPosted(false);
		
		setDatePromised (new Timestamp(System.currentTimeMillis()));
		setDateOrdered (new Timestamp(System.currentTimeMillis()));

		setFreightAmt (Env.ZERO);
		setChargeAmt (Env.ZERO);
	}

	/**************************************************************************
	 *  Project Constructor
	 *  @param  project Project to create Order from
	 *  @param IsSOTrx sales order
	 * 	@param	DocSubTypeSO if SO DocType Target (default DocSubTypeSO_OnCredit)
	 */
	public MDDOrder (MProject project, boolean IsSOTrx, String DocSubTypeSO)
	{
		this (project.getCtx(), 0, project.get_TrxName());
		setAD_Client_ID(project.getAD_Client_ID());
		setAD_Org_ID(project.getAD_Org_ID());
		setC_Campaign_ID(project.getC_Campaign_ID());
		setSalesRep_ID(project.getSalesRep_ID());
		//
		setC_Project_ID(project.getC_Project_ID());
		setDescription(project.getName());
		Timestamp ts = project.getDateContract();
		if (ts != null)
			setDateOrdered (ts);
		ts = project.getDateFinish();
		if (ts != null)
			setDatePromised (ts);
		//
		setC_BPartner_ID(project.getC_BPartner_ID());
		setC_BPartner_Location_ID(project.getC_BPartner_Location_ID());
		setAD_User_ID(project.getAD_User_ID());
		//
		setM_Warehouse_ID(project.getM_Warehouse_ID());
		//
		setIsSOTrx(IsSOTrx);
	}	//	MDDOrder

	/**
	 *  Load Constructor
	 *  @param ctx context
	 *  @param rs result set record
	 *  @param trxName transaction
	 */
	public MDDOrder (Properties ctx, ResultSet rs, String trxName)
	{
		super(ctx, rs, trxName);
	}	//	MDDOrder

	public MDDOrder(Properties ctx, int DD_Order_ID, String trxName, String... virtualColumns) {
		super(ctx, DD_Order_ID, trxName, virtualColumns);
	}

	/**	Order Lines					*/
	private MDDOrderLine[] 	m_lines = null;
	
	/** Force Creation of order		*/
	@SuppressWarnings("unused")
	private boolean			m_forceCreation = false;

	/**
	 * 	Add to Description
	 *	@param description text
	 */
	public void addDescription (String description)
	{
		String desc = getDescription();
		if (desc == null)
			setDescription(description);
		else
			setDescription(desc + " | " + description);
	}	//	addDescription

	/**
	 * 	Set Ship Business Partner
	 *	@param C_BPartner_ID bpartner
	 */
	public void setShip_BPartner_ID (int C_BPartner_ID)
	{
		super.setC_BPartner_ID (C_BPartner_ID);
	}	//	setShip_BPartner_ID
	
	/**
	 * 	Set Ship Business Partner Location
	 *	@param C_BPartner_Location_ID bp location
	 */
	public void setShip_Location_ID (int C_BPartner_Location_ID)
	{
		super.setC_BPartner_Location_ID (C_BPartner_Location_ID);
	}	//	setShip_Location_ID

	/**
	 * 	Set Ship Business Partner Contact
	 *	@param AD_User_ID user
	 */
	public void setShip_User_ID (int AD_User_ID)
	{
		super.setAD_User_ID (AD_User_ID);
	}	//	setShip_User_ID

	/**
	 * 	Set Business Partner Defaults and Details.
	 * 	SOTrx should be set.
	 * 	@param bp business partner
	 */
	public void setBPartner (MBPartner bp)
	{
		if (bp == null)
			return;

		setC_BPartner_ID(bp.getC_BPartner_ID());
		//	Defaults Payment Term
		int ii = 0;
		if (isSOTrx())
			ii = bp.getC_PaymentTerm_ID();
		else
			ii = bp.getPO_PaymentTerm_ID();
		
		//	Default Price List
		if (isSOTrx())
			ii = bp.getM_PriceList_ID();
		else
			ii = bp.getPO_PriceList_ID();
		//	Default Delivery/Via Rule
		String ss = bp.getDeliveryRule();
		if (ss != null)
			setDeliveryRule(ss);
		ss = bp.getDeliveryViaRule();
		if (ss != null)
			setDeliveryViaRule(ss);
		//	Default Invoice/Payment Rule
		ss = bp.getInvoiceRule();

		if (getSalesRep_ID() == 0)
		{
			ii = Env.getAD_User_ID(getCtx());
			if (ii != 0)
				setSalesRep_ID (ii);
		}

		//	Set Locations
		MBPartnerLocation[] locs = bp.getLocations(false);
		if (locs != null)
		{
			for (int i = 0; i < locs.length; i++)
			{
				if (locs[i].isShipTo())
				{
					super.setC_BPartner_Location_ID(locs[i].getC_BPartner_Location_ID());
				}
			}
			//	set to first
			if (getC_BPartner_Location_ID() == 0 && locs.length > 0)
			{
				super.setC_BPartner_Location_ID(locs[0].getC_BPartner_Location_ID());
			}
		}
		if (getC_BPartner_Location_ID() == 0)
		{
			log.log(Level.SEVERE, "MDDOrder.setBPartner - Has no Ship To Address: " + bp);
		}

		//	Set Contact
		MUser[] contacts = bp.getContacts(false);
		if (contacts != null && contacts.length == 1)
		{
			setAD_User_ID(contacts[0].getAD_User_ID());
		}
	}	//	setBPartner


	/**
	 * 	Copy Lines From other Order
	 *	@param otherOrder order
	 *	@param counter set counter info
	 *	@param copyASI copy line attributes Attribute Set Instance, Resource Assignment
	 *	@return number of lines copied
	 */
	public int copyLinesFrom (MDDOrder otherOrder, boolean counter, boolean copyASI)
	{
		if (isProcessed() || isPosted() || otherOrder == null)
			return 0;
		MDDOrderLine[] fromLines = otherOrder.getLines(false, null);
		int count = 0;
		for (int i = 0; i < fromLines.length; i++)
		{
			MDDOrderLine line = new MDDOrderLine (this);
			PO.copyValues(fromLines[i], line, getAD_Client_ID(), getAD_Org_ID());
			line.setDD_Order_ID(getDD_Order_ID());
			line.setOrder(this);
			//	References
			if (!copyASI)
			{
				line.setM_AttributeSetInstance_ID(0);
				//line.setS_ResourceAssignment_ID(0);
			}

			line.setQtyDelivered(Env.ZERO);
			line.setQtyReserved(Env.ZERO);
			line.setDateDelivered(null);

			line.setProcessed(false);
			if (line.save(get_TrxName()))
				count++;
		}
		if (fromLines.length != count)
			log.log(Level.SEVERE, "Line difference - From=" + fromLines.length + " <> Saved=" + count);
		return count;
	}	//	copyLinesFrom

	
	/**************************************************************************
	 * 	String Representation
	 *	@return info
	 */
	public String toString ()
	{
		StringBuilder sb = new StringBuilder ("MDDOrder[")
			.append(get_ID()).append("-").append(getDocumentNo())
			.append(",IsSOTrx=").append(isSOTrx())
			.append(",C_DocType_ID=").append(getC_DocType_ID())
			.append ("]");
		return sb.toString ();
	}	//	toString

	/**
	 * 	Get Document Info
	 *	@return document info (untranslated)
	 */
	public String getDocumentInfo()
	{
		MDocType dt = MDocType.get(getCtx(), getC_DocType_ID());
		return dt.getNameTrl() + " " + getDocumentNo();
	}	//	getDocumentInfo

	/**
	 * 	Create PDF
	 *	@return File or null
	 */
	public File createPDF ()
	{
		try
		{
			File temp = File.createTempFile(get_TableName()+get_ID()+"_", ".pdf");
			return createPDF (temp);
		}
		catch (Exception e)
		{
			log.severe("Could not create PDF - " + e.getMessage());
		}
		return null;
	}	//	getPDF

	/**
	 * 	Create PDF file
	 *	@param file output file
	 *	@return file if success
	 */
	public File createPDF (File file)
	{
		ReportEngine re = ReportEngine.get (getCtx(), ReportEngine.DISTRIBUTION_ORDER, getDD_Order_ID());
		if (re == null)
			return null;
		return re.getPDF(file);
	}	//	createPDF
	


	
	/**************************************************************************
	 * 	Get Lines of Order
	 * 	@param whereClause where clause or null (starting with AND)
	 * 	@param orderClause order clause
	 * 	@return lines
	 */
	public MDDOrderLine[] getLines (String whereClause, String orderClause)
	{
		StringBuilder whereClauseFinal = new StringBuilder(MDDOrderLine.COLUMNNAME_DD_Order_ID).append("=?");
		if (!Util.isEmpty(whereClause, true))
			whereClauseFinal.append(" AND (").append(whereClause).append(")");
		//
		List<MDDOrderLine> list = new Query(getCtx(), I_DD_OrderLine.Table_Name, whereClauseFinal.toString(), get_TrxName())
												.setParameters(getDD_Order_ID())
												.setOrderBy(orderClause)
												.list();
		return list.toArray(new MDDOrderLine[list.size()]);		
	}	//	getLines

	/**
	 * 	Get Lines of Order
	 * 	@param requery requery
	 * 	@param orderBy optional order by column
	 * 	@return lines
	 */
	public MDDOrderLine[] getLines (boolean requery, String orderBy)
	{
		if (m_lines != null && !requery) {
			set_TrxName(m_lines, get_TrxName());
			return m_lines;
		}
		//
		String orderClause = "";
		if (orderBy != null && orderBy.length() > 0)
			orderClause += orderBy;
		else
			orderClause += "Line";
		m_lines = getLines(null, orderClause);
		return m_lines;
	}	//	getLines

	/**
	 * 	Get Lines of Order.
	 * 	(useb by web store)
	 * 	@return lines
	 */
	public MDDOrderLine[] getLines()
	{
		return getLines(false, null);
	}	//	getLines
	
	/**
	 * 	Renumber Lines
	 *	@param step start and step
	 */
	public void renumberLines (int step)
	{
		int number = step;
		MDDOrderLine[] lines = getLines(true, null);	//	Line is default
		for (int i = 0; i < lines.length; i++)
		{
			MDDOrderLine line = lines[i];
			line.setLine(number);
			line.saveEx(get_TrxName());
			number += step;
		}
		m_lines = null;
	}	//	renumberLines
	
	


	/**
	 * 	Get Shipments of Order
	 * 	@return shipments
	 */
	public MMovement[] getMovement()
	{
		ArrayList<MMovement> list = new ArrayList<MMovement>();
		String sql = "SELECT DISTINCT io.* FROM M_MovementLine ml " + 
						"INNER JOIN M_Movement m ON (m.M_Movement_ID = ml.M_Movement_ID) " +
						"INNER JOIN DD_ORDERLINE ol ON (ol.DD_ORDERLINE_ID=ml.DD_ORDERLINE_ID) " + 
						"INNER JOIN DD_ORDER o ON (o.DD_ORDER_ID=ol.DD_ORDER_ID) " +
						"WHERE	o.DD_ORDER_ID=? " +
						"ORDER BY m.Created DESC";

		PreparedStatement pstmt = null;
		ResultSet rs = null;
		try
		{
			pstmt = DB.prepareStatement(sql, get_TrxName());
			pstmt.setInt(1, getDD_Order_ID());
			rs = pstmt.executeQuery();
			while (rs.next())
				list.add(new MMovement(getCtx(), rs, get_TrxName()));
		}
		catch (Exception e)
		{
			log.log(Level.SEVERE, sql, e);
		}
		finally
		{
			DB.close(rs, pstmt);
			rs = null;
			pstmt = null;
		}
		//
		MMovement[] retValue = new MMovement[list.size()];
		list.toArray(retValue);
		return retValue;
	}	//	getShipments

	
	
	/**
	 * 	Get Document Status
	 *	@return Document Status Clear Text
	 */
	public String getDocStatusName()
	{
		return MRefList.getListName(getCtx(), 131, getDocStatus());
	}	//	getDocStatusName

	/**
	 * 	Set DocAction
	 *	@param DocAction doc action
	 */
	public void setDocAction (String DocAction)
	{
		setDocAction (DocAction, false);
	}	//	setDocAction

	/**
	 * 	Set Processed.
	 * 	Propergate to Lines/Taxes
	 *	@param processed processed
	 */
	public void setProcessed (boolean processed)
	{
		super.setProcessed (processed);
		if (get_ID() == 0)
			return;
		String set = "SET Processed='"
			+ (processed ? "Y" : "N")
			+ "' WHERE DD_Order_ID=" + getDD_Order_ID();
		int noLine = DB.executeUpdate("UPDATE DD_OrderLine " + set, get_TrxName());
		m_lines = null;
		if (log.isLoggable(Level.FINE)) log.fine("setProcessed - " + processed + " - Lines=" + noLine);
	}	//	setProcessed
	
	@Override
	protected boolean beforeSave (boolean newRecord)
	{
		//	Client/Org Check
		if (getAD_Org_ID() == 0)
		{
			int context_AD_Org_ID = Env.getAD_Org_ID(getCtx());
			if (context_AD_Org_ID != 0)
			{
				setAD_Org_ID(context_AD_Org_ID);
				log.warning("Changed Org to Context=" + context_AD_Org_ID);
			}
		}
		if (getAD_Client_ID() == 0)
		{
			m_processMsg = "AD_Client_ID = 0";
			return false;
		}
		
		//	New Record Doc Type - make sure DocType set to 0
		if (newRecord && getC_DocType_ID() == 0)
			setC_DocType_ID (0);

		//	Default Warehouse
		if (getM_Warehouse_ID() == 0)
		{
			int ii = Env.getContextAsInt(getCtx(), Env.M_WAREHOUSE_ID);
			if (ii != 0)
				setM_Warehouse_ID(ii);
			else
			{
				log.saveError("FillMandatory", Msg.getElement(getCtx(), "M_Warehouse_ID"));
				return false;
			}
		}
		// Validate whether it is ok to change warehouse 
		if (!newRecord && is_ValueChanged("M_Warehouse_ID"))
		{
			MDDOrderLine[] lines = getLines(false,null);
			for (int i = 0; i < lines.length; i++)
			{
				if (!lines[i].canChangeWarehouse())
					return false;
			}
		}
		
		//	No Partner Info - set Template
		if (getC_BPartner_ID() == 0)
			setBPartner(MBPartner.getTemplate(getCtx(), getAD_Client_ID()));
		// Set default values from business partner
		if (getC_BPartner_Location_ID() == 0)
			setBPartner(new MBPartner(getCtx(), getC_BPartner_ID(), null));

		//	Default Sales Rep
		if (getSalesRep_ID() == 0)
		{
			int ii = Env.getContextAsInt(getCtx(), Env.AD_USER_ID);
			if (ii != 0)
				setSalesRep_ID (ii);
		}
		
		return true;
	}	//	beforeSave
	
	@Override
	protected boolean afterSave (boolean newRecord, boolean success)
	{
		if (!success || newRecord)
			return success;
		
		//	Propagate Description and POReference change to M_Movement records
		if (is_ValueChanged("Description") || is_ValueChanged("POReference"))
		{
			String sql = "UPDATE M_Movement i"
				+ " SET (Description,POReference)="
					+ "(SELECT Description,POReference "
					+ "FROM DD_Order o WHERE i.DD_Order_ID=o.DD_Order_ID) "
				+ "WHERE DocStatus NOT IN ('RE','CL') AND DD_Order_ID=" + getDD_Order_ID();
			int no = DB.executeUpdate(sql, get_TrxName());
			if (log.isLoggable(Level.FINE)) log.fine("Description -> #" + no);
		}		
	      
		//	Sync Lines
		afterSaveSync("AD_Org_ID");
		afterSaveSync("C_BPartner_ID");
		afterSaveSync("C_BPartner_Location_ID");
		afterSaveSync("DateOrdered");
		afterSaveSync("DatePromised");
		afterSaveSync("M_Shipper_ID");
		//
		return true;
	}	//	afterSave

	/**
	 * Copy columnName value to line (MDDOrderLine) records
	 * @param columnName
	 */
	private void afterSaveSync (String columnName)
	{
		if (is_ValueChanged(columnName))
		{
		    	final String whereClause = I_DD_Order.COLUMNNAME_DD_Order_ID + "=?";
		    	List<MDDOrderLine> lines = new Query (getCtx(), I_DD_OrderLine.Table_Name, whereClause, get_TrxName())
		    	.setParameters(getDD_Order_ID())
		    	.list();
		    	
		    	for (MDDOrderLine line : lines)
		    	{
		    	    line.set_ValueOfColumn(columnName, get_Value(columnName));
		    	    line.saveEx();
		    	    if (log.isLoggable(Level.FINE)) log.fine(columnName + " Lines -> #" + get_Value(columnName));
		    	}		    	
		}		
	}	//	afterSaveSync
	
	/**
	 * 	Set DocAction
	 *	@param DocAction doc oction
	 *	@param forceCreation force creation
	 */
	public void setDocAction (String DocAction, boolean forceCreation)
	{
		super.setDocAction (DocAction);
		m_forceCreation = forceCreation;
	}	//	setDocAction

	@Override
	protected boolean beforeDelete ()
	{
		if (isProcessed())
			return false;
		
		// Delete lines
		getLines();
		for (int i = 0; i < m_lines.length; i++)
		{
			m_lines[i].delete(true);
		}
		return true;
	}	//	beforeDelete
 
	/**
	 * 	Process document
	 *	@param processAction document action
	 *	@return true if performed
	 */
	public boolean processIt (String processAction)
	{
		m_processMsg = null;
		DocumentEngine engine = new DocumentEngine (this, getDocStatus());
		return engine.processIt (processAction, getDocAction());
	}	//	processIt
	
	/**	Process Message 			*/
	private String		m_processMsg = null;
	/**	Just Prepared Flag			*/
	private boolean		m_justPrepared = false;

	/**
	 * 	Unlock Document.
	 * 	@return true if success 
	 */
	public boolean unlockIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("unlockIt - " + toString());
		setProcessing(false);
		return true;
	}	//	unlockIt
	
	/**
	 * 	Invalidate Document
	 * 	@return true if success 
	 */
	public boolean invalidateIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		setDocAction(DOCACTION_Prepare);
		return true;
	}	//	invalidateIt
	
	
	/**************************************************************************
	 *	Prepare Document
	 * 	@return new status (In Progress or Invalid) 
	 */
	public String prepareIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_BEFORE_PREPARE);
		if (m_processMsg != null)
			return DocAction.STATUS_Invalid;
		MDocType dt = MDocType.get(getCtx(), getC_DocType_ID());

		//	Std Period open?
		if (!MPeriod.isOpen(getCtx(), getDateOrdered(), dt.getDocBaseType(), getAD_Org_ID()))
		{
			m_processMsg = "@PeriodClosed@";
			return DocAction.STATUS_Invalid;
		}
		
		//	Lines
		MDDOrderLine[] lines = getLines(true, "M_Product_ID");
		if (lines.length == 0)
		{
			m_processMsg = "@NoLines@";
			return DocAction.STATUS_Invalid;
		}
		
		// Bug 1564431
		if (getDeliveryRule() != null && getDeliveryRule().equals(MDDOrder.DELIVERYRULE_CompleteOrder)) 
		{
			for (int i = 0; i < lines.length; i++) 
			{
				MDDOrderLine line = lines[i];
				MProduct product = line.getProduct();
				if (product != null && product.isExcludeAutoDelivery())
				{
					m_processMsg = "@M_Product_ID@ "+product.getValue()+" @IsExcludeAutoDelivery@";
					return DocAction.STATUS_Invalid;
				}
			}
		}
		

		//	Mandatory Product Attribute Set Instance
		String mandatoryType = "='Y'";	//	IN ('Y','S')
		String sql = "SELECT COUNT(*) "
			+ "FROM DD_OrderLine ol"
			+ " INNER JOIN M_Product p ON (ol.M_Product_ID=p.M_Product_ID)" 
			+ " INNER JOIN M_AttributeSet pas ON (p.M_AttributeSet_ID=pas.M_AttributeSet_ID) "
			+ "WHERE pas.MandatoryType" + mandatoryType		
			+ " AND ol.M_AttributeSetInstance_ID IS NULL"
			+ " AND ol.DD_Order_ID=?";
		int no = DB.getSQLValue(get_TrxName(), sql, getDD_Order_ID());
		if (no != 0)
		{
			m_processMsg = "@LinesWithoutProductAttribute@ (" + no + ")";
			return DocAction.STATUS_Invalid;
		}
		
		reserveStock(lines);
		
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_AFTER_PREPARE);
		if (m_processMsg != null)
			return DocAction.STATUS_Invalid;
		
		m_justPrepared = true;
		return DocAction.STATUS_InProgress;
	}	//	prepareIt


	/**
	 * 	Reserve Inventory. 
	 * 	Counterpart: MMovement.completeIt()
	 * 	@param lines distribution order lines (ordered by M_Product_ID for deadlock prevention)
	 */
	public void reserveStock (MDDOrderLine[] lines)
	{
		BigDecimal Volume = Env.ZERO;
		BigDecimal Weight = Env.ZERO;
		
		StringBuilder errors = new StringBuilder();
		//	Always check and (un) Reserve Inventory		
		for (MDDOrderLine line : lines)
		{
			MLocator locator_from = MLocator.get(getCtx(),line.getM_Locator_ID());
			MLocator locator_to = MLocator.get(getCtx(),line.getM_LocatorTo_ID());			
			BigDecimal reserved_ordered = line.getQtyOrdered()
				.subtract(line.getQtyReserved())
				.subtract(line.getQtyDelivered()); 
			if (reserved_ordered.signum() == 0)
			{
				MProduct product = line.getProduct();
				if (product != null)
				{
					Volume = Volume.add(product.getVolume().multiply(line.getQtyOrdered()));
					Weight = Weight.add(product.getWeight().multiply(line.getQtyOrdered()));
				}
				continue;
			}
			
			if (log.isLoggable(Level.FINE)) log.fine("Line=" + line.getLine() 
				+ " - Ordered=" + line.getQtyOrdered() 
				+ ",Reserved=" + line.getQtyReserved() + ",Delivered=" + line.getQtyDelivered());

			//	Check Product - Stocked and Item
			MProduct product = line.getProduct();
			if (product != null) 
			{
				try
				{
					if (product.isStocked())
					{
						//	Update Storage
						if (!MStorageOnHand.add(getCtx(), locator_to.getM_Locator_ID(), 
							line.getM_Product_ID(), 
							line.getM_AttributeSetInstance_ID(),
							Env.ZERO,null, get_TrxName()))
						{
							throw new AdempiereException();
						}
						
						if (!MStorageOnHand.add(getCtx(), locator_from.getM_Locator_ID(), 
							line.getM_Product_ID(), 
							line.getM_AttributeSetInstanceTo_ID(),
							Env.ZERO,null, get_TrxName()))
						{
							throw new AdempiereException();
						}
						
					}	//	stockec
					//	update line
					line.setQtyReserved(line.getQtyReserved().add(reserved_ordered));
					line.saveEx();
					//
					Volume = Volume.add(product.getVolume().multiply(line.getQtyOrdered()));
					Weight = Weight.add(product.getWeight().multiply(line.getQtyOrdered()));
				}
				catch (NegativeInventoryDisallowedException e)
				{
					log.severe(e.getMessage());
					errors.append(Msg.getElement(getCtx(), "Line")).append(" ").append(line.getLine()).append(": ");
					errors.append(e.getMessage()).append("\n");
				}
			}	//	product
		}	//	reverse inventory
		
		if (errors.toString().length() > 0)
			throw new AdempiereException(errors.toString());
		
		setVolume(Volume);
		setWeight(Weight);
	}	//	reserveStock
	
	
	/**
	 * 	Approve Document
	 * 	@return true if success 
	 */
	public boolean  approveIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("approveIt - " + toString());
		setIsApproved(true);
		return true;
	}	//	approveIt
	
	/**
	 * 	Reject Approval
	 * 	@return true if success 
	 */
	public boolean rejectIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("rejectIt - " + toString());
		setIsApproved(false);
		return true;
	}	//	rejectIt
	
	
	/**************************************************************************
	 * 	Complete Document
	 * 	@return new status (Complete, In Progress, Invalid, Waiting ..)
	 */
	public String completeIt()
	{
		@SuppressWarnings("unused")
		MDocType dt = MDocType.get(getCtx(), getC_DocType_ID());
		
		//	Just prepare
		if (DOCACTION_Prepare.equals(getDocAction()))
		{
			setProcessed(false);
			return DocAction.STATUS_InProgress;
		}
		
		//	Re-Check
		if (!m_justPrepared)
		{
			String status = prepareIt();
			m_justPrepared = false;
			if (!DocAction.STATUS_InProgress.equals(status))
				return status;
		}
		
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_BEFORE_COMPLETE);
		if (m_processMsg != null)
			return DocAction.STATUS_Invalid;
		
		//	Implicit Approval
		if (!isApproved())
			approveIt();
		getLines(true,null);
		if (log.isLoggable(Level.INFO)) log.info(toString());
		StringBuilder info = new StringBuilder();		
		String valid = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_AFTER_COMPLETE);
		if (valid != null)
		{
			if (info.length() > 0)
				info.append(" - ");
			info.append(valid);
			m_processMsg = info.toString();
			return DocAction.STATUS_Invalid;
		}

		setProcessed(true);	
		m_processMsg = info.toString();
		//
		setDocAction(DOCACTION_Close);
		return DocAction.STATUS_Completed;
	}	//	completeIt
	
	/**
	 * 	Void Document.
	 * 	Set Qtys to 0 - Sales: reverse all documents
	 * 	@return true if success 
	 */
	public boolean voidIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		// Before Void
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_BEFORE_VOID);
		if (m_processMsg != null)
			return false;

		MDDOrderLine[] lines = getLines(true, "M_Product_ID");
		for (int i = 0; i < lines.length; i++)
		{
			MDDOrderLine line = lines[i];
			BigDecimal old = line.getQtyOrdered();
			if (old.signum() != 0)
			{
				line.addDescription(Msg.getMsg(getCtx(), "Voided") + " (" + old + ")");		
				line.saveEx(get_TrxName());
			}
		}
		addDescription(Msg.getMsg(getCtx(), "Voided"));
		//	Clear Reservations
		reserveStock(lines);		
		// After Void
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_AFTER_VOID);
		if (m_processMsg != null)
			return false;
		
		setProcessed(true);
		setDocAction(DOCACTION_None);
		return true;
	}	//	voidIt
	
	/**
	 * 	Create Shipment/Invoice Reversals
	 * 	@return true if success
	 */
	/*
	private boolean createReversals()
	{
		//	Cancel only Sales 
		if (!isSOTrx())
			return true;
		
		if (log.isLoggable(Level.INFO)) log.info("createReversals");
		StringBuilder info = new StringBuilder();
		
		//	Reverse All *Shipments*
		info.append("@M_InOut_ID@:");
		MInOut[] shipments = getShipments();
		for (int i = 0; i < shipments.length; i++)
		{
			MInOut ship = shipments[i];
			//	if closed - ignore
			if (MInOut.DOCSTATUS_Closed.equals(ship.getDocStatus())
				|| MInOut.DOCSTATUS_Reversed.equals(ship.getDocStatus())
				|| MInOut.DOCSTATUS_Voided.equals(ship.getDocStatus()) )
				continue;
			ship.set_TrxName(get_TrxName());
		
			//	If not completed - void - otherwise reverse it
			if (!MInOut.DOCSTATUS_Completed.equals(ship.getDocStatus()))
			{
				if (ship.voidIt())
					ship.setDocStatus(MInOut.DOCSTATUS_Voided);
			}
			else if (ship.reverseCorrectIt())	//	completed shipment
			{
				ship.setDocStatus(MInOut.DOCSTATUS_Reversed);
				info.append(" ").append(ship.getDocumentNo());
			}
			else
			{
				m_processMsg = "Could not reverse Shipment " + ship;
				return false;
			}
			ship.setDocAction(MInOut.DOCACTION_None);
			ship.save(get_TrxName());
		}	//	for all shipments
			
		//	Reverse All *Invoices*
		info.append(" - @C_Invoice_ID@:");
		MInvoice[] invoices = getInvoices();
		for (int i = 0; i < invoices.length; i++)
		{
			MInvoice invoice = invoices[i];
			//	if closed - ignore
			if (MInvoice.DOCSTATUS_Closed.equals(invoice.getDocStatus())
				|| MInvoice.DOCSTATUS_Reversed.equals(invoice.getDocStatus())
				|| MInvoice.DOCSTATUS_Voided.equals(invoice.getDocStatus()) )
				continue;			
			invoice.set_TrxName(get_TrxName());
			
			//	If not completed - void - otherwise reverse it
			if (!MInvoice.DOCSTATUS_Completed.equals(invoice.getDocStatus()))
			{
				if (invoice.voidIt())
					invoice.setDocStatus(MInvoice.DOCSTATUS_Voided);
			}
			else if (invoice.reverseCorrectIt())	//	completed invoice
			{
				invoice.setDocStatus(MInvoice.DOCSTATUS_Reversed);
				info.append(" ").append(invoice.getDocumentNo());
			}
			else
			{
				m_processMsg = "Could not reverse Invoice " + invoice;
				return false;
			}
			invoice.setDocAction(MInvoice.DOCACTION_None);
			invoice.save(get_TrxName());
		}	//	for all shipments
		
		m_processMsg = info.toString();
		return true;
	}	//	createReversals
	*/
	
	/**
	 * 	Close Document.
	 * 	Cancel not delivered Qunatities
	 * 	@return true if success 
	 */
	public boolean closeIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		// Before Close
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_BEFORE_CLOSE);
		if (m_processMsg != null)
			return false;
		
		//	Close Not delivered Qty - SO/PO
		MDDOrderLine[] lines = getLines(true, "M_Product_ID");
		for (int i = 0; i < lines.length; i++)
		{
			MDDOrderLine line = lines[i];
			BigDecimal old = line.getQtyOrdered();
			if (old.compareTo(line.getQtyDelivered()) != 0)
			{
				line.setQtyOrdered(line.getQtyDelivered());
				//	QtyEntered unchanged
				line.addDescription("Close (" + old + ")");
				line.saveEx(get_TrxName());
			}
		}
		//	Clear Reservations
		reserveStock(lines);
		
		setProcessed(true);
		setDocAction(DOCACTION_None);
		// After Close
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_AFTER_CLOSE);
		if (m_processMsg != null)
			return false;
		return true;
	}	//	closeIt
	
	/**
	 * 	Reverse Correction - same void
	 * 	@return true if success 
	 */
	public boolean reverseCorrectIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		// Before reverseCorrect
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_BEFORE_REVERSECORRECT);
		if (m_processMsg != null)
			return false;
		
		// After reverseCorrect
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_AFTER_REVERSECORRECT);
		if (m_processMsg != null)
			return false;
		
		return voidIt();
	}	//	reverseCorrectionIt
	
	/**
	 * 	Reverse Accrual - none
	 * 	@return false 
	 */
	public boolean reverseAccrualIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		// Before reverseAccrual
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_BEFORE_REVERSEACCRUAL);
		if (m_processMsg != null)
			return false;
		
		// After reverseAccrual
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_AFTER_REVERSEACCRUAL);
		if (m_processMsg != null)
			return false;
		
		return false;
	}	//	reverseAccrualIt
	
	/**
	 * 	Re-activate.
	 * 	@return true if success 
	 */
	public boolean reActivateIt()
	{
		if (log.isLoggable(Level.INFO)) log.info(toString());
		// Before reActivate
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_BEFORE_REACTIVATE);
		if (m_processMsg != null)
			return false;	
		// After reActivate
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this,ModelValidator.TIMING_AFTER_REACTIVATE);
		if (m_processMsg != null)
			return false;
		
		setDocAction(DOCACTION_Complete);
		setProcessed(false);
		return true;
	}	//	reActivateIt
	
	
	/*************************************************************************
	 * 	Get Summary
	 *	@return Summary of Document
	 */
	public String getSummary()
	{
		StringBuilder sb = new StringBuilder();
		sb.append(getDocumentNo());
			
		if (m_lines != null)
			sb.append(" (#").append(m_lines.length).append(")");
		//	 - Description
		if (getDescription() != null && getDescription().length() > 0)
			sb.append(" - ").append(getDescription());
		return sb.toString();
	}	//	getSummary
	
	/**
	 * 	Get Process Message
	 *	@return clear text error message
	 */
	public String getProcessMsg()
	{
		return m_processMsg;
	}	//	getProcessMsg
	
	/**
	 * 	Get Document Owner (Responsible)
	 *	@return AD_User_ID
	 */
	public int getDoc_User_ID()
	{
		return getSalesRep_ID();
	}	//	getDoc_User_ID


	public BigDecimal getApprovalAmt() {
		// TODO Auto-generated method stub
		return null;
	}


	public int getC_Currency_ID() {
		// TODO Auto-generated method stub
		return 0;
	}

	/**
	 * 	Document Status is Complete or Closed
	 *	@return true if CO, CL or RE
	 */
	public boolean isComplete()
	{
		String ds = getDocStatus();
		return DOCSTATUS_Completed.equals(ds) 
			|| DOCSTATUS_Closed.equals(ds)
			|| DOCSTATUS_Reversed.equals(ds);
	}	//	isComplete

}	//	MDDOrder