/******************************************************************************
 * Product: Compiere ERP & CRM Smart Business Solution                        *
 * Copyright (C) 1999-2007 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., 3600 Bridge Parkway #102, Redwood City, CA 94065, USA      *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
package org.compiere.model;

import java.io.*;
import java.net.*;
import java.sql.*;
import java.util.*;
import java.util.logging.*;

import org.compiere.*;
import org.compiere.util.*;

/**
 * 	Issue Report Model
 *	
 *  @author Jorg Janke
 *  @version $Id: MIssue.java,v 1.1 2008/01/16 07:34:29 jrmt Exp $
 */
public class MIssue extends X_AD_Issue
{
	/**
	 * 	Create and report issue
	 *	@param record log record
	 *	@return reported issue or null
	 */
	public static MIssue create (LogRecord record)
	{
		s_log.config(record.getMessage());
		MSystem system = MSystem.get(Env.getCtx()); 
		if (!DB.isConnected() 
			|| system == null
			|| !system.isAutoErrorReport())
			return null;
		//
		MIssue issue = new MIssue(record);
		String error = issue.report();
		issue.save();
		if (error != null)
			return null;
		return issue;
	}	//	create
	
	/**
	 * 	Create from decoded hash map string
	 *	@param ctx context
	 *	@param hexInput hex string
	 *	@return issue
	 */
	@SuppressWarnings("unchecked")
	public static MIssue create (Ctx ctx, String hexInput)
	{
		HashMap hmIn = null;
		try		//	encode in report
		{
			byte[] byteArray = Secure.convertHexString(hexInput);	
			ByteArrayInputStream bIn = new ByteArrayInputStream(byteArray);
			ObjectInputStream oIn = new ObjectInputStream(bIn);
			hmIn = (HashMap)oIn.readObject();
		
		}
		catch (Exception e) 
		{
			s_log.log(Level.SEVERE, "",e);
			return null;
		}

		MIssue issue = new MIssue(ctx, (HashMap<String,String>)hmIn);
		return issue;
	}	//	create
	
	/**	Logger	*/
	private static CLogger s_log = CLogger.getCLogger (MIssue.class);
	
	/** Answer Delimiter		*/
	public static String	DELIMITER = "|";
	
	/**************************************************************************
	 * 	Standard Constructor
	 *	@param ctx context
	 *	@param AD_Issue_ID issue
	 *	@param trxName transaction
	 */
	public MIssue (Ctx ctx, int AD_Issue_ID, String trxName)
	{
		super (ctx, AD_Issue_ID, trxName);
		if (AD_Issue_ID == 0)
		{
			setProcessed (false);	// N
			setSystemStatus(SYSTEMSTATUS_Evaluation);
			try
			{
				init(ctx);
			}
			catch (Exception e)
			{
				e.getStackTrace();
			}
		}
	}	//	MIssue

	/**
	 * 	Load Constructor
	 *	@param ctx context
	 *	@param rs result set
	 *	@param trxName trx
	 */
	public MIssue (Ctx ctx, ResultSet rs, String trxName)
	{
		super (ctx, rs, trxName);
	}	//	MIssue
	
	/**
	 * 	Log Record Constructor
	 *	@param record
	 */
	public MIssue (LogRecord record)
	{
		this (Env.getCtx(), 0, null);
		String summary = record.getMessage();
		setSourceClassName(record.getSourceClassName());
		setSourceMethodName(record.getSourceMethodName());
		setLoggerName(record.getLoggerName());
		Throwable t = record.getThrown();
		if (t != null)
		{
			if (summary != null && summary.length() > 0)
				summary = t.toString() + " " + summary;
			if (summary == null || summary.length() == 0)
				summary = t.toString();
			//
			StringBuffer error = new StringBuffer();
			StackTraceElement[] tes = t.getStackTrace();
			int count = 0;
			for (int i = 0; i < tes.length; i++)
			{
				StackTraceElement element = tes[i];
				String s = element.toString();
				if (s.indexOf("compiere") != -1)
				{
					error.append(s).append("\n");
					if (count == 0)
					{
						String source = element.getClassName()
							+ "." + element.getMethodName();
						setSourceClassName(source);
						setLineNo(element.getLineNumber());
					}
					count++;
				}
				if (count > 5 || error.length() > 2000)
					break;
			}
			setErrorTrace(error.toString());
			//	Stack
			CharArrayWriter cWriter = new CharArrayWriter();
			PrintWriter pWriter = new PrintWriter(cWriter);
			t.printStackTrace(pWriter);
			setStackTrace(cWriter.toString());
		}
		if (summary == null || summary.length() == 0)
			summary = "??";
		setIssueSummary(summary);
		setRecord_ID(1);
	}	//	MIssue

	/**
	 * 	HashMap Constructor
	 *	@param ctx context
	 *	@param hmIn hash map
	 */
	public MIssue (Ctx ctx, HashMap<String,String> hmIn)
	{
		super (ctx, 0, null);
		load(hmIn);
		setRecord_ID(0);
	}	//	MIssue

	/**
	 * 	Initialize
	 * 	@param ctx context
	 * 	@throws Exception
	 */
	private void init(Ctx ctx) throws Exception
	{
		MSystem system = MSystem.get(ctx);
		setName(system.getName());
		setUserName(system.getUserName());
		setDBAddress(system.getDBAddress(true));
		setSystemStatus(system.getSystemStatus());
		setReleaseNo(system.getReleaseNo());	//	DB
		setVersion(Compiere.DATE_VERSION);		//	Code
		setDatabaseInfo(DB.getDatabaseInfo());
		setOperatingSystemInfo(Compiere.getOSInfo());
		setJavaInfo(Compiere.getJavaInfo());
		setReleaseTag(Compiere.getImplementationVersion());
		setLocal_Host(InetAddress.getLocalHost().toString());
		if (system.isAllowStatistics())
		{
			setStatisticsInfo(system.getStatisticsInfo(true));
			setProfileInfo(system.getProfileInfo(true));
		}
	}	//	init
	
	/** Length of Info Fields			*/
	private static final int	INFOLENGTH = 2000;
	
	/**
	 * 	Set Issue Summary.
	 * 	Truncate it to 2000 char
	 *	@param IssueSummary summary
	 */
	public void setIssueSummary (String IssueSummary)
	{
		if (IssueSummary == null)
			return;
		IssueSummary = IssueSummary.replace("java.lang.", "");
		IssueSummary = IssueSummary.replace("java.sql.", "");
		if (IssueSummary.length() > INFOLENGTH)
			IssueSummary = IssueSummary.substring(0,INFOLENGTH-1);
		super.setIssueSummary (IssueSummary);
	}	//	setIssueSummary
	
	/**
	 * 	Set Stack Trace.
	 * 	Truncate it to 2000 char
	 *	@param StackTrace trace
	 */
	public void setStackTrace (String StackTrace)
	{
		if (StackTrace == null)
			return;
		StackTrace = StackTrace.replace("java.lang.", "");
		StackTrace = StackTrace.replace("java.sql.", "");
		if (StackTrace.length() > INFOLENGTH)
			StackTrace = StackTrace.substring(0,INFOLENGTH-1);
		super.setStackTrace (StackTrace);
	}	//	setStackTrace
	
	
	/**
	 * 	Set Error Trace.
	 * 	Truncate it to 2000 char
	 *	@param ErrorTrace trace
	 */
	public void setErrorTrace (String ErrorTrace)
	{
		if (ErrorTrace == null)
			return;
		ErrorTrace = ErrorTrace.replace("java.lang.", "");
		ErrorTrace = ErrorTrace.replace("java.sql.", "");
		if (ErrorTrace.length() > INFOLENGTH)
			ErrorTrace = ErrorTrace.substring(0,INFOLENGTH-1);
		super.setErrorTrace (ErrorTrace);
	}	//	setErrorTrace

	/**
	 * 	Add Comments
	 *	@param Comments
	 */
	public void addComments (String Comments)
	{
		if (Comments == null || Comments.length() == 0)
			return;
		String old = getComments();
		if (old == null || old.length() == 0)
			setComments (Comments);
		else if (!old.equals(Comments) 
			&& old.indexOf(Comments) == -1)		//	 something new
			setComments (Comments + " | " + old);
	}	//	addComments
	
	/**
	 * 	Set Comments.
	 * 	Truncate it to 2000 char
	 *	@param Comments
	 */
	public void setComments (String Comments)
	{
		if (Comments == null)
			return;
		if (Comments.length() > INFOLENGTH)
			Comments = Comments.substring(0,INFOLENGTH-1);
		super.setComments (Comments);
	}	//	setComments
	
	/**
	 * 	Set ResponseText.
	 * 	Truncate it to 2000 char
	 *	@param ResponseText
	 */
	public void setResponseText (String ResponseText)
	{
		if (ResponseText == null)
			return;
		if (ResponseText.length() > INFOLENGTH)
			ResponseText = ResponseText.substring(0,INFOLENGTH-1);
		super.setResponseText(ResponseText);
	}	//	setResponseText

	/**
	 * 	Process Request.
	 * 	@return answer
	 */
	public String process()
	{
		MIssueProject.get(this);	//	sets also Asset
		MIssueSystem.get(this);
		MIssueUser.get(this);
		//
	//	setR_IssueKnown_ID(0);
	//	setR_Request_ID(0);
		return createAnswer();
	}	//	process
	
	/**
	 * 	Create Answer to send to User
	 *	@return answer
	 */
	public String createAnswer()
	{
		StringBuffer sb = new StringBuffer();
		if (getA_Asset_ID() != 0)
			sb.append("Sign up for support at http://www.compiere.org to receive answers.");
		else
		{
			if (getR_IssueKnown_ID() != 0)
				sb.append("Known Issue\n");
			if (getR_Request_ID() != 0)
				sb.append("Request: ")
					.append(getRequest().getDocumentNo())
					.append("\n");
		}
		return sb.toString();
	}	//	createAnswer
	
	/**
	 * 	Get Request
	 *	@return request or null
	 */
	public X_R_Request getRequest()
	{
		if (getR_Request_ID() == 0)
			return null;
		return new X_R_Request(getCtx(), getR_Request_ID(), null);
	}	//	getRequestDocumentNo

	/**
	 * 	Get Request Document No
	 *	@return request Document No
	 */
	public String getRequestDocumentNo()
	{
		if (getR_Request_ID() == 0)
			return "";
		X_R_Request r = getRequest();
		return r.getDocumentNo();
	}	//	getRequestDocumentNo
	
	/**
	 * 	Get System Status
	 *	@return system status
	 */
	public String getSystemStatus ()
	{
		String s = super.getSystemStatus ();
		if (s == null || s.length() == 0)
			s = SYSTEMSTATUS_Evaluation;
		return s;
	}	//	getSystemStatus
	
	
	/**************************************************************************
	 * 	Report/Update Issue.
	 *	@return error message
	 */
	public String report()
	{
		if (true)
			return "-";
		StringBuffer parameter = new StringBuffer("?");
		if (getRecord_ID() == 0)	//	don't report
			return "ID=0";
		if (getRecord_ID() == 1)	//	new
		{
			parameter.append("ISSUE=");
			HashMap<String,String> htOut = get_HashMap();
			try		//	deserializing in create
			{
				ByteArrayOutputStream bOut = new ByteArrayOutputStream();
				ObjectOutput oOut = new ObjectOutputStream(bOut);
				oOut.writeObject(htOut);
				oOut.flush();
				String hexString = Secure.convertToHexString(bOut.toByteArray());
				parameter.append(hexString);
			}
			catch (Exception e) 
			{
				log.severe(e.getLocalizedMessage());
				return "New-" + e.getLocalizedMessage();
			}
		}
		else	//	existing
		{
			try
			{
				parameter.append("RECORDID=").append(getRecord_ID());
				parameter.append("&DBADDRESS=").append(URLEncoder.encode(getDBAddress(), "UTF-8"));
				parameter.append("&COMMENTS=").append(URLEncoder.encode(getComments(), "UTF-8"));
			}
			catch (Exception e) 
			{
				log.severe(e.getLocalizedMessage());
				return "Update-" + e.getLocalizedMessage();
			}
		}
		
		InputStreamReader in = null;
		String target = "http://dev1/wstore/issueReportServlet";
		try		//	Send GET Request
		{
			StringBuffer urlString = new StringBuffer(target)
				.append(parameter);
			URL url = new URL (urlString.toString());
			URLConnection uc = url.openConnection();
			in = new InputStreamReader(uc.getInputStream());
		}
		catch (Exception e)
		{
			String msg = "Cannot connect to http://" + target; 
			if (e instanceof FileNotFoundException || e instanceof ConnectException)
				msg += "\nServer temporarily down - Please try again later";
			else
			{
				msg += "\nCheck connection - " + e.getLocalizedMessage();
				log.log(Level.FINE, msg);
			}
			return msg;
		}
		return readResponse(in);
	}	//	report
	
	/**
	 * 	Read Response
	 *	@param in input stream
	 *	@return error message
	 */
	private String readResponse(InputStreamReader in)
	{
		StringBuffer sb = new StringBuffer();
		int Record_ID = 0;
		String ResponseText = null;
		String RequestDocumentNo = null;
		try		//	Get Answer
		{
			int c;
			while ((c = in.read()) != -1)
				sb.append((char)c);
			in.close();
			log.fine(sb.toString());
			String clear = URLDecoder.decode(sb.toString(), "UTF-8");
			log.fine(clear);
			//	Interpret Data
			StringTokenizer st = new StringTokenizer(clear, DELIMITER);
			while (st.hasMoreElements())
			{
				String pair = st.nextToken();
				try
				{
					int index = pair.indexOf("=");
					if (pair.startsWith("RECORDID="))
					{
						String info = pair.substring(index+1);
						Record_ID = Integer.parseInt(info);
					}
					else if (pair.startsWith("RESPONSE="))
						ResponseText = pair.substring(index+1);
					else if (pair.startsWith("DOCUMENTNO="))
						RequestDocumentNo = pair.substring(index+1);
				}
				catch (Exception e)
				{
					log.warning(pair + " - " + e.getMessage());
				}
			}
		}
		catch (Exception ex)
		{
			log.log(Level.FINE, "", ex);
			return "Reading-" + ex.getLocalizedMessage();
		}

		if (Record_ID != 0)
			setRecord_ID(Record_ID);
		if (ResponseText != null)
			setResponseText(ResponseText);
		if (RequestDocumentNo != null)
			setRequestDocumentNo(RequestDocumentNo);
		return null;
	}	//	readResponse
	
	/**
	 * 	String Representation
	 *	@return info
	 */
	public String toString ()
	{
		StringBuffer sb = new StringBuffer ("MIssue[");
		sb.append (get_ID())
			.append ("-").append (getIssueSummary())
			.append (",Record=").append (getRecord_ID())
			.append ("]");
		return sb.toString ();
	}	//	toString
	
	
}	//	MIssue
