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https://github.com/kidfromjupiter/nearby.git
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87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_PRESENCE_FPP_FPP_MANAGER_H_
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#define THIRD_PARTY_NEARBY_PRESENCE_FPP_FPP_MANAGER_H_
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#include <cstdint>
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#include <optional>
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#include "absl/container/flat_hash_map.h"
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#include "absl/status/status.h"
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#include "presence/fpp/fpp_c_ffi/include/presence_detector.h"
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#include "presence/implementation/sensor_fusion.h"
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#include "presence/presence_zone.h"
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namespace nearby {
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namespace presence {
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// Manages fused presence updates and serves as a sync -> async converter class
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// between fpp and NP sensor fusion
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class FppManager {
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public:
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using RangeType = PresenceZone::DistanceBoundary::RangeType;
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FppManager() { presence_detector_handle_ = presence_detector_create(); }
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~FppManager() { presence_detector_free(presence_detector_handle_); }
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/** Updates FPP with new BLE scan results. Returns status code */
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absl::Status UpdateBleScanResult(uint64_t device_id,
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std::optional<int8_t> txPower, int rssi,
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uint64_t elapsed_realtime_millis);
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/**
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* Adds callback for updates of proximity zone transitions.
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*/
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void RegisterZoneTransitionListener(uint64_t callback_id,
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ZoneTransitionCallback callback);
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/**
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* Unregister callback for updates of proximity zone transitions.
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*/
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void UnregisterZoneTransitionListener(uint64_t callback_id);
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/**
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* Clears all proximity state data
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*/
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void ResetProximityStateData();
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/*
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* Converts ProximityEstimate to a NP compatible struct
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*/
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RangingData ConvertProximityEstimateToRangingData(ProximityEstimate estimate);
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/**
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* Gets the most recent ranging data for a given device
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*/
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std::optional<RangingData> GetRangingData(uint64_t device_id);
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/*
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* Converts a status code to a string representation
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*/
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std::string GetStatusStringFromCode(int status_code);
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private:
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void CheckPresenceZoneChanged(uint64_t device_id,
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ProximityEstimate old_estimate,
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ProximityEstimate new_estimate);
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absl::flat_hash_map<uint64_t, ProximityEstimate> current_proximity_estimates_;
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absl::flat_hash_map<uint64_t, ZoneTransitionCallback>
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zone_transition_callbacks_;
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PresenceDetectorHandle presence_detector_handle_;
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};
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} // namespace presence
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_PRESENCE_FPP_FPP_MANAGER_H_
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