/* 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/. */

#include "PageInformation.h"

#include "mozilla/BaseProfiler.h"
#include "mozilla/BaseProfileJSONWriter.h"

namespace mozilla {
namespace baseprofiler {

PageInformation::PageInformation(uint64_t aTabID, uint64_t aInnerWindowID,
                                 const std::string& aUrl,
                                 uint64_t aEmbedderInnerWindowID)
    : mTabID(aTabID),
      mInnerWindowID(aInnerWindowID),
      mUrl(aUrl),
      mEmbedderInnerWindowID(aEmbedderInnerWindowID),
      mRefCnt(0) {}

bool PageInformation::Equals(PageInformation* aOtherPageInfo) const {
  // It's enough to check inner window IDs because they are unique for each
  // page. Therefore, we don't have to check the tab ID or url.
  return InnerWindowID() == aOtherPageInfo->InnerWindowID();
}

void PageInformation::StreamJSON(SpliceableJSONWriter& aWriter) const {
  aWriter.StartObjectElement();
  // Here, we are converting uint64_t to double. Both tab and Inner
  // Window IDs are created using `nsContentUtils::GenerateProcessSpecificId`,
  // which is specifically designed to only use 53 of the 64 bits to be lossless
  // when passed into and out of JS as a double.
  aWriter.DoubleProperty("tabID", TabID());
  aWriter.DoubleProperty("innerWindowID", InnerWindowID());
  aWriter.StringProperty("url", Url());
  aWriter.DoubleProperty("embedderInnerWindowID", EmbedderInnerWindowID());
  aWriter.EndObject();
}

size_t PageInformation::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
  return aMallocSizeOf(this);
}

}  // namespace baseprofiler
}  // namespace mozilla