/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (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.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK ***** */

#ifndef _nsMsgHdr_H
#define _nsMsgHdr_H

#include "nsIMsgHdr.h"
#include "nsString.h"
#include "MailNewsTypes.h"
#include "mdb.h"

class nsMsgDatabase;
class nsCString;

class nsMsgHdr : public nsIMsgDBHdr {
public:
    NS_DECL_NSIMSGHDR
	friend class nsMsgDatabase;
    ////////////////////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////////////////////
    // nsMsgHdr methods:
    nsMsgHdr(nsMsgDatabase *db, nsIMdbRow *dbRow);
    virtual				~nsMsgHdr();

	virtual nsresult	GetRawFlags(PRUint32 *result);
    void				Init();
	virtual nsresult	InitCachedValues();
	virtual nsresult	InitFlags();

    NS_DECL_ISUPPORTS

    nsIMdbRow   *GetMDBRow() {return m_mdbRow;}
    PRBool      IsParentOf(nsIMsgDBHdr *possibleChild);
protected:
    nsresult	SetStringColumn(const char *str, mdb_token token);
    nsresult	SetUInt32Column(PRUint32 value, mdb_token token);
    nsresult	GetUInt32Column(mdb_token token, PRUint32 *pvalue, PRUint32 defaultValue = 0);
    nsresult    BuildRecipientsFromArray(const char *names, const char *addresses, PRUint32 numAddresses, nsCAutoString& allRecipients);

	// reference and threading stuff.
	nsresult	ParseReferences(const char *references);
	const char*	GetNextReference(const char *startNextRef, nsCString &reference);
	const char* GetPrevReference(const char *prevRef, nsCString &reference);

    nsMsgKey	m_threadId; 
    nsMsgKey	m_messageKey; 	//news: article number, mail mbox offset, imap uid...
    nsMsgKey	m_threadParent;	// message this is a reply to, in thread.
    PRTime  		m_date;                         
    PRUint32		m_messageSize;	// lines for news articles, bytes for mail messages
    PRUint32		m_statusOffset;	// offset in a local mail message of the mozilla status hdr
    PRUint32		m_flags;
    PRUint16		m_numReferences;	// x-ref header for threading
    nsCStringArray		m_references;  // avoid parsing references every time we want one
    nsMsgPriorityValue	m_priority;

    // nsMsgHdrs will have to know what db and row they belong to, since they are really
    // just a wrapper around the msg row in the mdb. This could cause problems,
    // though I hope not.
    nsMsgDatabase	*m_mdb;
    nsIMdbRow		*m_mdbRow;
    PRUint32		m_initedValues;
};

#endif

