#pragma once

#include <GCS_MAVLink/GCS.h>

class GCS_MAVLINK_Tracker : public GCS_MAVLINK
{

public:

protected:

    // telem_delay is not used by Tracker but is pure virtual, thus
    // this implementaiton.  it probably *should* be used by Tracker,
    // as currently Tracker may brick XBees
    uint32_t telem_delay() const override { return 0; }

    Compass *get_compass() const override;
    AP_Mission *get_mission() override { return nullptr; };
    AP_Rally *get_rally() const override { return nullptr; };
    AP_Camera *get_camera() const override { return nullptr; };
    const AP_FWVersion &get_fwver() const override;

    uint8_t sysid_my_gcs() const override;

    bool set_mode(uint8_t mode) override;

    MAV_RESULT _handle_command_preflight_calibration_baro() override;

    int32_t global_position_int_relative_alt() const {
        return 0; // what if we have been picked up and carried somewhere?
    }

private:

    void packetReceived(const mavlink_status_t &status, mavlink_message_t &msg) override;
    void mavlink_check_target(const mavlink_message_t &msg);
    void handleMessage(mavlink_message_t * msg) override;
    bool handle_guided_request(AP_Mission::Mission_Command &cmd) override;
    void handle_change_alt_request(AP_Mission::Mission_Command &cmd) override;
    bool try_send_message(enum ap_message id) override;

    MAV_TYPE frame_type() const override;
    MAV_MODE base_mode() const override;
    uint32_t custom_mode() const override;
    MAV_STATE system_status() const override;
};