/* -*- 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 nsConverterInputStream_h

#define nsConverterInputStream_h

#include "nsIInputStream.h"

#include "nsIConverterInputStream.h"

#include "nsIUnicharLineInputStream.h"

#include "nsTArray.h"

#include "nsAutoPtr.h"

#include "nsCOMPtr.h"

#include "nsReadLine.h"

#include "mozilla/Encoding.h"

#define NS_CONVERTERINPUTSTREAM_CONTRACTID "@mozilla.org/intl/converter-input-stream;1"

// {2BC2AD62-AD5D-4b7b-A9DB-F74AE203C527}

#define NS_CONVERTERINPUTSTREAM_CID \

  { 0x2bc2ad62, 0xad5d, 0x4b7b, \

   { 0xa9, 0xdb, 0xf7, 0x4a, 0xe2, 0x3, 0xc5, 0x27 } }

class nsConverterInputStream : public nsIConverterInputStream,

                               public nsIUnicharLineInputStream {

 public:

    NS_DECL_ISUPPORTS

    NS_DECL_NSIUNICHARINPUTSTREAM

    NS_DECL_NSIUNICHARLINEINPUTSTREAM

    NS_DECL_NSICONVERTERINPUTSTREAM

    nsConverterInputStream()

      : mLastErrorCode(NS_OK)

      , mLeftOverBytes(0)

      , mUnicharDataOffset(0)

      , mUnicharDataLength(0)

      , mErrorsAreFatal(false)

      , mLineBuffer(nullptr)

    {

    }

  private:

    virtual ~nsConverterInputStream() { Close(); }

    uint32_t Fill(nsresult *aErrorCode);

    mozilla::UniquePtr<mozilla::Decoder> mConverter;

    FallibleTArray<char> mByteData;

    FallibleTArray<char16_t> mUnicharData;

    nsCOMPtr<nsIInputStream> mInput;

    nsresult  mLastErrorCode;

    uint32_t  mLeftOverBytes;

    uint32_t  mUnicharDataOffset;

    uint32_t  mUnicharDataLength;

    bool mErrorsAreFatal;

    nsAutoPtr<nsLineBuffer<char16_t> > mLineBuffer;

};

#endif