/**
 * @file outputBuf.h
 * @author Alexander Klein (alex@kleiax.de)
 * @brief Contains a small class that provide a streambuf
 * 
 * The streambuf is used to double the std::cout to consol
 * and MQTT.
 * 
 * @version 0.1
 * @date 2022-02-14
 * 
 * @copyright Copyright (c) 2022
 * 
 */

#ifndef OUTPUT_STREAM_MQTT_H
#define OUTPUT_STREAM_MQTT_H

#include <iostream>
#include <streambuf>
#include <locale>
#include <cstdio>

#include "debugMqtt.h"

#include <BluetoothSerial.h>

/**
 * @brief A alternativ streambuf for std::cout
 * 
 * The streambuf is used to double the std::cout to consol
 * and MQTT.
 * 
 */
class OutputBuf : public std::streambuf {
    public:
        /**
         * @brief Construct a new Output Buf Mqtt object
         * 
         * @param debugMqtt 
         * @param serialBT
         */
        OutputBuf(DebugMqtt* debugMqtt = nullptr, BluetoothSerial* serialBT = nullptr);

        /**
         * @brief Activate the mqtt output
         * 
         * This only works if the DebugMqtt is set by
         * setDebugMqtt. 
         * 
         * @param status 
         */
        void activateMqtt(bool status);

        /**
         * @brief Active the output over the bluetooth serial consol
         * 
         * This only works if BluetoothSerial is set by
         * setSerialBT.
         * 
         * @param status 
         */
        void activateSerialBT(bool status);

        void setDebugMqtt(DebugMqtt* debugMqtt);
        void setSerialBT(BluetoothSerial* serialBT);


    protected:
        /**
         * @brief 
         * 
         * @param c 
         * @return std::streambuf::int_type 
         */
        virtual std::streambuf::int_type overflow(std::streambuf::int_type c);

    private:
        bool isMqttActive = false;
        bool isSerialBTActive = false;

        DebugMqtt* debugMqtt;
        BluetoothSerial* serialBT;
};

#endif // OUTPUT_STREAM_MQTT_H