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/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#pragma once

#include <vector>

#include "Sensor.h"
#include "V2_1/SubHal.h"

namespace android {
namespace hardware {
namespace sensors {
namespace V2_1 {
namespace subhal {
namespace implementation {

using ::android::hardware::sensors::V1_0::OperationMode;
using ::android::hardware::sensors::V1_0::RateLevel;
using ::android::hardware::sensors::V1_0::Result;
using ::android::hardware::sensors::V1_0::SharedMemInfo;
using ::android::hardware::sensors::V2_1::Event;
using ::android::hardware::sensors::V2_1::implementation::IHalProxyCallback;
using ::android::hardware::sensors::V2_1::implementation::ISensorsSubHal;

class SensorsSubHal : public ISensorsSubHal, public ISensorsEventCallback {
  public:
    SensorsSubHal();

    Return<void> getSensorsList_2_1(ISensors::getSensorsList_2_1_cb _hidl_cb);
    Return<Result> injectSensorData_2_1(const Event& event);
    Return<Result> initialize(const sp<IHalProxyCallback>& halProxyCallback);

    virtual Return<Result> setOperationMode(OperationMode mode);

    OperationMode getOperationMode() const { return mCurrentOperationMode; }

    Return<Result> activate(int32_t sensorHandle, bool enabled);

    Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs, int64_t maxReportLatencyNs);

    Return<Result> flush(int32_t sensorHandle);

    Return<void> registerDirectChannel(const SharedMemInfo& mem,
                                       ISensors::registerDirectChannel_cb _hidl_cb);

    Return<Result> unregisterDirectChannel(int32_t channelHandle);

    Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
                                    ISensors::configDirectReport_cb _hidl_cb);

    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args);

    const std::string getName() { return "FakeSubHal"; }

    void postEvents(const std::vector<Event>& events, bool wakeup) override;

  protected:
    template <class SensorType>
    void AddSensor() {
        std::shared_ptr<SensorType> sensor =
            std::make_shared<SensorType>(mNextHandle++ /* sensorHandle */, this /* callback */);
        mSensors[sensor->getSensorInfo().sensorHandle] = sensor;
    }

    std::map<int32_t, std::shared_ptr<Sensor>> mSensors;

    sp<IHalProxyCallback> mCallback;

  private:
    OperationMode mCurrentOperationMode = OperationMode::NORMAL;

    int32_t mNextHandle;
};

}  // namespace implementation
}  // namespace subhal
}  // namespace V2_1
}  // namespace sensors
}  // namespace hardware
}  // namespace android