/*
 * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
 *
 * 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.
 */

#ifndef TMCAGLWM_LOW_CAN_CLIENT_HPP
#define TMCAGLWM_LOW_CAN_CLIENT_HPP


#include <string>
#include <vector>
#include <json-c/json.h>


namespace wm {

class LowCanClient {

public:
    explicit LowCanClient();
    ~LowCanClient() = default;

    void initialize();
    void analyzeCanSignal(struct json_object *object);
    bool isChangedLampState();
    bool isChangedParkingBrakeState();
    bool isChangedAccelPedalState();
    bool isChangedCarState();
    const char* getCurrentLampState();
    const char* getCurrentParkingBrakeState();
    const char* getCurrentAccelPedalState();
    const char* getCurrentCarState();

private:
    // Disable copy and move
    LowCanClient(LowCanClient const &) = delete;
    LowCanClient &operator=(LowCanClient const &) = delete;
    LowCanClient(LowCanClient &&) = delete;
    LowCanClient &operator=(LowCanClient &&) = delete;

    const std::vector<const char*> kEventName_{
        "vehicle.speed",
        "transmission_gear_position",
        "headlamp_status",
        "parking_brake_status",
        "accelerator.pedal.position",
    };

    int vehicle_speed_;
    int trans_gear_pos_;
    json_bool headlamp_status_;
    json_bool parking_brake_status_;
    double accel_pedal_pos_;

    std::string prv_lamp_state_;
    std::string crr_lamp_state_;
    std::string prv_parking_brake_state_;
    std::string crr_parking_brake_state_;
    std::string prv_accel_pedal_state_;
    std::string crr_accel_pedal_state_;
    std::string prv_car_state_;
    std::string crr_car_state_;

    bool is_changed_lamp_state_;
    bool is_changed_parking_brake_state_;
    bool is_changed_accel_pedal_state_;
    bool is_changed_car_state_;
};

} // namespace wm


#endif  // TMCAGLWM_LOW_CAN_CLIENT_HPP