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79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
#pragma once
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#include "indexer/feature_decl.hpp"
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#include <chrono>
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#include <functional>
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#include <list>
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#include <map>
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#include <vector>
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namespace df
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{
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using EventClock = std::chrono::system_clock;
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using EventTimestamp = EventClock::time_point;
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struct OverlayShowEvent
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{
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FeatureID m_feature;
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uint8_t m_zoomLevel;
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EventTimestamp m_timestamp;
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bool m_hasMyPosition;
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m2::PointD m_myPosition;
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double m_gpsAccuracy;
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OverlayShowEvent(FeatureID const & feature, uint8_t zoomLevel,
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EventTimestamp const & timestamp, bool hasMyPosition,
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m2::PointD const & myPosition, double gpsAccuracy)
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: m_feature(feature)
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, m_zoomLevel(zoomLevel)
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, m_timestamp(timestamp)
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, m_hasMyPosition(hasMyPosition)
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, m_myPosition(myPosition)
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, m_gpsAccuracy(gpsAccuracy)
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{}
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};
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using OverlaysShowStatsCallback = std::function<void(std::list<OverlayShowEvent> &&)>;
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int constexpr kMinZoomLevel = 10;
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class OverlaysTracker
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{
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public:
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OverlaysTracker() = default;
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void SetTrackedOverlaysFeatures(std::vector<FeatureID> && ids);
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bool StartTracking(int zoomLevel, bool hasMyPosition,
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m2::PointD const & myPosition, double gpsAccuracy);
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void Track(FeatureID const & fid);
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void FinishTracking();
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std::list<OverlayShowEvent> Collect();
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bool IsValid() const { return !m_data.empty(); }
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private:
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enum class OverlayStatus
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{
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Invisible,
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InvisibleCandidate,
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Visible,
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};
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struct OverlayInfo
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{
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EventTimestamp m_timestamp;
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OverlayStatus m_status = OverlayStatus::Invisible;
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bool m_tracked = false;
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};
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std::map<FeatureID, OverlayInfo> m_data;
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std::list<OverlayShowEvent> m_events;
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int m_zoomLevel = -1;
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bool m_hasMyPosition = false;
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m2::PointD m_myPosition = m2::PointD::Zero();
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double m_gpsAccuracy = 0.0;
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};
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} // namespace df
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