/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                       *
 * Copyright (C) 1999-2006 ComPiere, 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.                     *
 * For the text or an alternative of this public license, you may reach us    *
 * ComPiere, Inc., 2620 Augustine Dr. #245, Santa Clara, CA 95054, USA        *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
package org.compiere.process;

import java.io.File;
import java.math.BigDecimal;
import java.util.Properties;
import java.util.logging.Level;

import org.compiere.model.MDocType;
import org.compiere.model.ModelValidationEngine;
import org.compiere.model.ModelValidator;
import org.compiere.model.PO;
import org.compiere.model.POInfo;

/**
 *	Template for DocAction
 *	
 *  Instead of modifying DocumentEngine, you could simply extend DocOptions interface and use customizeValidActions 
 *  @author Jorg Janke
 *  @version $Id: DocActionTemplate.java,v 1.3 2006/07/30 00:54:44 jjanke Exp $
 */
public class DocActionTemplate extends PO implements DocAction
{
	/**
	 * 
	 */
	private static final long serialVersionUID = -7588955558162632796L;

	/**
	 * 	DocActionTemplate
	 */
	private DocActionTemplate()
	{
		super((Properties)null);
	}	//	DocActionTemplate
	/**
	 * 	Init PO
	 *	@param ctx ctx
	 *	@return null
	 */
	protected POInfo initPO (Properties ctx)
	{
		return null;
	}	//	initPO
	
	protected int get_AccessLevel ()
	{
		return 0;
	}

	/**
	 * 	Get Document Info
	 *	@return document info (untranslated)
	 */
	public String getDocumentInfo()
	{
		MDocType dt = MDocType.get(getCtx(), 0);
		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.INVOICE, getC_Invoice_ID());
	//	if (re == null)
			return null;
	//	return re.getPDF(file);
	}	//	createPDF

	
	/**************************************************************************
	 * 	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("invalidateIt - " + 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_DocTypeTarget_ID());

		//	Std Period open?
		if (!MPeriod.isOpen(getCtx(), getDateAcct(), dt.getDocBaseType()))
		{
			m_processMsg = "@PeriodClosed@";
			return DocAction.STATUS_Invalid;
		}
		MLine[] lines = getLines(false);
		if (lines.length == 0)
		{
			m_processMsg = "@NoLines@";
			return DocAction.STATUS_Invalid;
		}
		**/
		//	Add up Amounts
		m_processMsg = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_AFTER_PREPARE);
		if (m_processMsg != null)
			return DocAction.STATUS_Invalid;
		m_justPrepared = true;
	//	if (!DOCACTION_Complete.equals(getDocAction()))
	//		setDocAction(DOCACTION_Complete);
		return DocAction.STATUS_InProgress;
	}	//	prepareIt
	
	/**
	 * 	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()
	{
		//	Re-Check
		if (!m_justPrepared)
		{
			String status = prepareIt();
			m_justPrepared = false;
			if (!DocAction.STATUS_InProgress.equals(status))
				return status;
		}

		// setDefiniteDocumentNo();

		m_processMsg = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_BEFORE_COMPLETE);
		if (m_processMsg != null)
			return DocAction.STATUS_Invalid;
		
		//	Implicit Approval
	//	if (!isApproved())
			approveIt();
		if (log.isLoggable(Level.INFO)) log.info(toString());
		//
		
		//	User Validation
		String valid = ModelValidationEngine.get().fireDocValidate(this, ModelValidator.TIMING_AFTER_COMPLETE);
		if (valid != null)
		{
			m_processMsg = valid;
			return DocAction.STATUS_Invalid;
		}
	//	setProcessed(true);
	//	setDocAction(DOCACTION_Close);
		return DocAction.STATUS_Completed;
	}	//	completeIt
	
	/**
	 * 	Set the definite document number after completed
	 */
	/*
	private void setDefiniteDocumentNo() {
		MDocType dt = MDocType.get(getCtx(), getC_DocType_ID());
		if (dt.isOverwriteDateOnComplete()) {
			setDateInvoiced(TimeUtil.getDay(0));
			if (getDateAcct().before(getDateInvoiced())) {
				setDateAcct(getDateInvoiced());
				MPeriod.testPeriodOpen(getCtx(), getDateAcct(), getC_DocType_ID(), getAD_Org_ID());
			}
		}
		if (dt.isOverwriteSeqOnComplete()) {
			String value = null;
			int index = p_info.getColumnIndex("C_DocType_ID");
			if (index == -1)
				index = p_info.getColumnIndex("C_DocTypeTarget_ID");
			if (index != -1)		//	get based on Doc Type (might return null)
				value = DB.getDocumentNo(get_ValueAsInt(index), get_TrxName(), true);
			if (value != null) {
				setDocumentNo(value);
			}
		}
	}
	*/

	/**
	 * 	Void Document.
	 * 	Same as Close.
	 * 	@return true if success 
	 */
	public boolean voidIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("voidIt - " + toString());
		return closeIt();
	}	//	voidIt
	
	/**
	 * 	Close Document.
	 * 	Cancel not delivered Qunatities
	 * 	@return true if success 
	 */
	public boolean closeIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("closeIt - " + toString());

		//	Close Not delivered Qty
	//	setDocAction(DOCACTION_None);
		return true;
	}	//	closeIt
	
	/**
	 * 	Reverse Correction
	 * 	@return true if success 
	 */
	public boolean reverseCorrectIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("reverseCorrectIt - " + toString());
		return false;
	}	//	reverseCorrectionIt
	
	/**
	 * 	Reverse Accrual - none
	 * 	@return true if success 
	 */
	public boolean reverseAccrualIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("reverseAccrualIt - " + toString());
		return false;
	}	//	reverseAccrualIt
	
	/** 
	 * 	Re-activate
	 * 	@return true if success 
	 */
	public boolean reActivateIt()
	{
		if (log.isLoggable(Level.INFO)) log.info("reActivateIt - " + toString());
	//	setProcessed(false);
		if (reverseCorrectIt())
			return true;
		return false;
	}	//	reActivateIt
	
	
	/*************************************************************************
	 * 	Get Summary
	 *	@return Summary of Document
	 */
	public String getSummary()
	{
		StringBuilder sb = new StringBuilder();
	//	sb.append(getDocumentNo());
		//	: Total Lines = 123.00 (#1)
	//	sb.append(": ")
	//		.append(Msg.translate(getCtx(),"TotalLines")).append("=").append(getTotalLines())
	//		.append(" (#").append(getLines(false).length).append(")");
		//	 - Description
	//	if (getDescription() != null && getDescription().length() > 0)
	//		sb.append(" - ").append(getDescription());
		return sb.toString();
	}	//	getSummary

	/**
	 * 	Get Document no
	 *	@return Document No
	 */
	public String getDocumentNo()
	{
		return "-";
	}	//	getDocumentNo

	/**
	 * 	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();
		return 0;
	}	//	getDoc_User_ID

	/**
	 * 	Get Document Approval Amount
	 *	@return amount
	 */
	public BigDecimal getApprovalAmt()
	{
		return null;	//getTotalLines();
	}	//	getApprovalAmt

	
	
	
	
	/**
	 * 	Get Document Currency
	 *	@return C_Currency_ID
	 */
	public int getC_Currency_ID()
	{
	//	MPriceList pl = MPriceList.get(getCtx(), getM_PriceList_ID());
	//	return pl.getC_Currency_ID();
		return 0;
	}	//	getC_Currency_ID

	
	
	
	
	
	/**
	 * 	Set Doc Status
	 *	@param newStatus status
	 */
	public void setDocStatus (String newStatus)
	{
	}
	/**
	 * 	Get Doc Status
	 *	@return doc status
	 */
	public String getDocStatus ()
	{
		return null;
	}
	/**
	 * 	Get Doc Action
	 *	@return doc action
	 */
	public String getDocAction ()
	{
		return null;
	}
	/**
	 * 	Save
	 *	@return true if saved
	 */
	public boolean save ()
	{
		return false;
	}

}	//	DocActionTemplate
