// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_NTP_TILES_METRICS_H_
#define COMPONENTS_NTP_TILES_METRICS_H_

#include <utility>
#include <vector>

#include "components/ntp_tiles/ntp_tile.h"
#include "components/ntp_tiles/tile_visual_type.h"
#include "url/gurl.h"

namespace rappor {
class RapporService;
}  // namespace rappor

namespace ntp_tiles {
namespace metrics {

struct TileImpression {
  TileImpression(TileSource source, TileVisualType type, const GURL& url)
      : source(source), type(type), url(url) {}

  TileSource source;
  TileVisualType type;
  GURL url;
};

// Records an NTP impression, after all tiles have loaded.
// Includes the visual types (see above) of all visible tiles. If
// |rappor_service| is null, no rappor metrics will be reported.
void RecordPageImpression(const std::vector<TileImpression>& tiles,
                          rappor::RapporService* rappor_service);

// Records a click on a tile.
void RecordTileClick(int index, TileSource source, TileVisualType tile_type);

}  // namespace metrics
}  // namespace ntp_tiles

#endif