/*
 * Copyright (C) 2012 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,
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "core/timing/PerformanceEntry.h"

#include "base/atomic_sequence_num.h"
#include "bindings/core/v8/ScriptValue.h"
#include "bindings/core/v8/V8ObjectBuilder.h"

namespace blink {

namespace {
static base::AtomicSequenceNumber index_seq;
}

PerformanceEntry::PerformanceEntry(const String& name,
                                   const String& entry_type,
                                   double start_time,
                                   double finish_time)
    : name_(name),
      entry_type_(entry_type),
      start_time_(start_time),
      duration_(finish_time - start_time),
      entry_type_enum_(ToEntryTypeEnum(entry_type)),
      index_(index_seq.GetNext()) {}

PerformanceEntry::~PerformanceEntry() {}

String PerformanceEntry::name() const {
  return name_;
}

String PerformanceEntry::entryType() const {
  return entry_type_;
}

DOMHighResTimeStamp PerformanceEntry::startTime() const {
  return start_time_;
}

DOMHighResTimeStamp PerformanceEntry::duration() const {
  return duration_;
}

PerformanceEntry::EntryType PerformanceEntry::ToEntryTypeEnum(
    const String& entry_type) {
  if (entry_type == "composite")
    return kComposite;
  if (entry_type == "longtask")
    return kLongTask;
  if (entry_type == "mark")
    return kMark;
  if (entry_type == "measure")
    return kMeasure;
  if (entry_type == "render")
    return kRender;
  if (entry_type == "resource")
    return kResource;
  if (entry_type == "navigation")
    return kNavigation;
  if (entry_type == "taskattribution")
    return kTaskAttribution;
  if (entry_type == "paint")
    return kPaint;
  return kInvalid;
}

ScriptValue PerformanceEntry::toJSONForBinding(
    ScriptState* script_state) const {
  V8ObjectBuilder result(script_state);
  BuildJSONValue(result);
  return result.GetScriptValue();
}

void PerformanceEntry::BuildJSONValue(V8ObjectBuilder& builder) const {
  builder.AddString("name", name());
  builder.AddString("entryType", entryType());
  builder.AddNumber("startTime", startTime());
  builder.AddNumber("duration", duration());
}

}  // namespace blink