/*
 * Copyright (C) 2014 Apple Inc. All rights reserved.
 * Copyright (c) 2008 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR 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 "ScriptCallStack.h"

namespace Inspector {

Ref<ScriptCallStack> ScriptCallStack::create()
{
    return adoptRef(*new ScriptCallStack);
}

Ref<ScriptCallStack> ScriptCallStack::create(Vector<ScriptCallFrame>&& frames, bool truncated, AsyncStackTrace* parentStackTrace)
{
    return adoptRef(*new ScriptCallStack(WTF::move(frames), truncated, parentStackTrace));
}

ScriptCallStack::ScriptCallStack() = default;

ScriptCallStack::ScriptCallStack(Vector<ScriptCallFrame>&& frames, bool truncated, AsyncStackTrace* parentStackTrace)
    : m_frames(WTF::move(frames))
    , m_truncated(truncated)
    , m_parentStackTrace(parentStackTrace)
{
    ASSERT(m_frames.size() <= maxCallStackSizeToCapture);
}

ScriptCallStack::~ScriptCallStack() = default;

const ScriptCallFrame& ScriptCallStack::at(size_t index) const
{
    ASSERT(m_frames.size() > index);
    return m_frames[index];
}

size_t ScriptCallStack::size() const
{
    return m_frames.size();
}

const ScriptCallFrame* ScriptCallStack::firstNonNativeCallFrame() const
{
    if (!m_frames.size())
        return nullptr;

    for (const auto& frame : m_frames) {
        if (!frame.isNative())
            return &frame;
    }

    return nullptr;
}

void ScriptCallStack::append(const ScriptCallFrame& frame)
{
    m_frames.append(frame);
}

void ScriptCallStack::removeParentStackTrace()
{
    m_parentStackTrace = nullptr;
}

bool ScriptCallStack::isEqual(ScriptCallStack* o) const
{
    if (!o)
        return false;

    size_t frameCount = o->m_frames.size();
    if (frameCount != m_frames.size())
        return false;

    for (size_t i = 0; i < frameCount; ++i) {
        if (!m_frames[i].isEqual(o->m_frames[i]))
            return false;
    }

    return true;
}

Ref<JSON::ArrayOf<Protocol::Console::CallFrame>> ScriptCallStack::buildInspectorArray() const
{
    auto frames = JSON::ArrayOf<Protocol::Console::CallFrame>::create();
    for (size_t i = 0; i < m_frames.size(); i++)
        frames->addItem(m_frames.at(i).buildInspectorObject());
    return frames;
}

Ref<Protocol::Console::StackTrace> ScriptCallStack::buildInspectorObject() const
{
    auto frames = JSON::ArrayOf<Protocol::Console::CallFrame>::create();
    for (const auto& item : m_frames)
        frames->addItem(item.buildInspectorObject());

    auto stackTrace = Protocol::Console::StackTrace::create()
        .setCallFrames(WTF::move(frames))
        .release();

    if (m_truncated)
        stackTrace->setTruncated(true);

    if (m_parentStackTrace) {
        if (auto parentStackTrace = m_parentStackTrace->buildInspectorObject())
            stackTrace->setParentStackTrace(parentStackTrace.releaseNonNull());
    }

    return stackTrace;
}

} // namespace Inspector