/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _nsMsgHdr_H
#define _nsMsgHdr_H

#include "mozilla/MemoryReporting.h"
#include "nsIMsgHdr.h"
#include "nsStringGlue.h"
#include "MailNewsTypes.h"
#include "mdb.h"
#include "nsTArray.h"

class nsMsgDatabase;
class nsCString;
class nsIMsgThread;

class nsMsgHdr : public nsIMsgDBHdr {
public:
    NS_DECL_NSIMSGDBHDR
    friend class nsMsgDatabase;
    friend class nsImapMailDatabase;
    friend class nsMsgPropertyEnumerator;
    friend class nsMsgThread;

    ////////////////////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////////////////////
    // nsMsgHdr methods:
    nsMsgHdr(nsMsgDatabase *db, nsIMdbRow *dbRow);

    NS_DECL_ISUPPORTS

    size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOfFun) const
    {
      return m_references.ShallowSizeOfExcludingThis(aMallocSizeOfFun);
    }
    size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOfFun) const
    {
      return aMallocSizeOfFun(this) + SizeOfExcludingThis(aMallocSizeOfFun);
    }

protected:
    nsIMdbRow*       GetMDBRow() { return m_mdbRow; }
    void             ReleaseMDBRow() { NS_IF_RELEASE(m_mdbRow); }
    nsMsgDatabase*   GetMdb() { return m_mdb; }
    void             ClearCachedValues() { m_initedValues = 0; }

    virtual nsresult GetRawFlags(uint32_t *result);

    bool             IsParentOf(nsIMsgDBHdr *possibleChild);
    bool             IsAncestorOf(nsIMsgDBHdr *possibleChild);

private:
    virtual ~nsMsgHdr();

    void             Init();
    virtual nsresult InitFlags();
    virtual nsresult InitCachedValues();

    bool             IsAncestorKilled(uint32_t ancestorsToCheck);
    void             ReparentInThread(nsIMsgThread *thread);

    nsresult SetStringColumn(const char *str, mdb_token token);
    nsresult SetUInt32Column(uint32_t value, mdb_token token);
    nsresult GetUInt32Column(mdb_token token, uint32_t *pvalue, uint32_t defaultValue = 0);
    nsresult SetUInt64Column(uint64_t value, mdb_token token);
    nsresult GetUInt64Column(mdb_token token, uint64_t *pvalue, uint64_t defaultValue = 0);

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

    nsMsgKey	m_threadId; 
    nsMsgKey    m_messageKey;   // news: article number, local mail: key, imap: uid...
    nsMsgKey	m_threadParent;	// message this is a reply to, in thread.
    PRTime      m_date;                         
    uint32_t    m_messageSize;	// lines for news articles, bytes for mail messages
    uint32_t    m_statusOffset; // offset in a local mail message of the x-mozilla-status header
    uint32_t    m_flags;
    // avoid parsing references every time we want one
    nsTArray<nsCString> m_references;
    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;
    uint32_t      m_initedValues;
};

#endif