/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsStreamConverter_h_
#define nsStreamConverter_h_

#include "nsIStreamConverter.h"
#include "nsIMimeStreamConverter.h"
#include "nsIMimeEmitter.h"
#include "nsIURI.h"
#include "nsIAsyncInputStream.h"
#include "nsIAsyncOutputStream.h"
#include "nsIChannel.h"
#include "nsStringGlue.h"
#include "nsCOMPtr.h"

#define MIME_FORWARD_HTML_PREFIX "<HTML><BODY><BR><BR>"

class nsStreamConverter : public nsIStreamConverter, public nsIMimeStreamConverter {
public:
  nsStreamConverter();

  NS_DECL_THREADSAFE_ISUPPORTS

  // nsIMimeStreamConverter support
  NS_DECL_NSIMIMESTREAMCONVERTER
  // nsIStreamConverter methods
  NS_DECL_NSISTREAMCONVERTER
  // nsIStreamListener methods
  NS_DECL_NSISTREAMLISTENER

  // nsIRequestObserver methods
  NS_DECL_NSIREQUESTOBSERVER

  ////////////////////////////////////////////////////////////////////////////
  // nsStreamConverter specific methods:
  ////////////////////////////////////////////////////////////////////////////
  NS_IMETHOD Init(nsIURI *aURI, nsIStreamListener * aOutListener, nsIChannel *aChannel);
  NS_IMETHOD GetContentType(char **aOutputContentType);
  NS_IMETHOD InternalCleanup(void);
  NS_IMETHOD DetermineOutputFormat(const char *url, nsMimeOutputType *newType);
  NS_IMETHOD FirePendingStartRequest(void);

private:
  virtual ~nsStreamConverter();
  nsresult Close();

  // the input and output streams form a pipe...they need to be passed around together..
  nsCOMPtr<nsIAsyncOutputStream>     mOutputStream;     // output stream
  nsCOMPtr<nsIAsyncInputStream>      mInputStream;

  nsCOMPtr<nsIStreamListener>   mOutListener;   // output stream listener
  nsCOMPtr<nsIChannel>          mOutgoingChannel;

  nsCOMPtr<nsIMimeEmitter>      mEmitter;         // emitter being used...
  nsCOMPtr<nsIURI>              mURI;             // URI being processed
  nsMimeOutputType              mOutputType;      // the output type we should use for the operation
  bool                          mAlreadyKnowOutputType;

  void                          *mBridgeStream;   // internal libmime data stream

  // Type of output, entire message, header only, body only
  nsCString                     mOutputFormat;
  nsCString                     mRealContentType; // if we know the content type for real, this will be set (used by attachments)

  nsCString                     mOverrideFormat;  // this is a possible override for emitter creation
  bool                          mWrapperOutput;   // Should we output the frame split message display

  nsCOMPtr<nsIMimeStreamConverterListener>  mMimeStreamConverterListener;
  bool                          mForwardInline;
  bool                          mForwardInlineFilter;
  bool                          mOverrideComposeFormat;
  nsString                      mForwardToAddress;
  nsCOMPtr<nsIMsgIdentity>      mIdentity;
  nsCString                     mOriginalMsgURI;
  nsCOMPtr<nsIMsgDBHdr>         mOrigMsgHdr;

  nsCString                     mFromType;
  nsCString                     mToType;
#ifdef DEBUG_mscott
  PRTime mConvertContentTime;
#endif
  nsIRequest *                  mPendingRequest;  // used when we need to delay to fire onStartRequest
  nsISupports *                 mPendingContext;  // used when we need to delay to fire onStartRequest
};

#endif /* nsStreamConverter_h_ */
