/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "TextDecoderStreamDecoder.h"

namespace WebCore {

ExceptionOr<Ref<TextDecoderStreamDecoder>> TextDecoderStreamDecoder::create(const String& label, bool fatal, bool ignoreBOM)
{
    auto textDecoder = TextDecoder::create(label, { fatal, ignoreBOM });
    if (textDecoder.hasException())
        return textDecoder.releaseException();

    return adoptRef(*new TextDecoderStreamDecoder(textDecoder.releaseReturnValue()));
}

TextDecoderStreamDecoder::TextDecoderStreamDecoder(Ref<TextDecoder>&& textDecoder)
    : m_textDecoder(WTFMove(textDecoder))
{
}

ExceptionOr<String> TextDecoderStreamDecoder::decode(std::optional<BufferSource::VariantType> value)
{
    return protectedTextDecoder()->decode(WTFMove(value), { true });
}

ExceptionOr<String> TextDecoderStreamDecoder::flush()
{
    return protectedTextDecoder()->decode({ }, { false });
}

Ref<TextDecoder> TextDecoderStreamDecoder::protectedTextDecoder()
{
    return m_textDecoder;
}

}
