#ifndef B15F_h
#define B15F_h

#include <iostream>
#include <bits/stdc++.h>
#include <string>
#include <fstream>
#include <cstdlib>
#include <chrono>
#include <cstdint>

#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
#include "driverexception.h"

class B15F
{
private:
	B15F(void); // privater Konstruktor
public:
	// Grundfunktionen
	void init(void);
	void reconnect(void);
	void discard(void);
	bool testConnection(void);
	bool testIntConv(void);
	
	// Board Befehle
	bool digitaleAusgabe0(uint8_t);
	bool digitaleAusgabe1(uint8_t);
	uint8_t digitaleEingabe0(void);
	uint8_t digitaleEingabe1(void);
	bool analogeAusgabe0(uint16_t);
	bool analogeAusgabe1(uint16_t);
	uint16_t analogeEingabe(uint8_t);
	bool analogEingabeSequenz(uint8_t channel_a, uint16_t* buffer_a, uint32_t offset_a, uint8_t channel_b, uint16_t* buffer_b, uint32_t offset_b, uint16_t start, int16_t delta, uint16_t count);
	
	// Serielle Verbindung
	inline void writeByte(uint8_t);
	inline void writeInt(uint16_t);
	inline uint8_t readByte(void);
	inline uint16_t readInt(void);
	
	
	void delay(uint16_t);
		
	static B15F& getInstance(void);

private:
	int usart = -1;
	uint16_t timeout = 1000;

	static B15F* instance;

	// CONSTANTS
	const std::string PRE = "[B15F] ";
	const std::string SERIAL_DEVICE = "/dev/ttyUSB0";
	constexpr static uint8_t MSG_OK = 0xFF;
	constexpr static uint8_t MSG_FAIL = 0xFE;
	constexpr static uint16_t RECONNECT_TIMEOUT = 32; // ms
	constexpr static uint8_t RECONNECT_TRIES = 3;
	constexpr static uint32_t BAUDRATE = 115200;
	
	// REQUESTS
	constexpr static uint8_t RQ_DISC = 0;
	constexpr static uint8_t RQ_TEST = 1;
	constexpr static uint8_t RQ_INFO = 2;
	constexpr static uint8_t RQ_INT  = 3;
	constexpr static uint8_t RQ_BA0  = 5;
	constexpr static uint8_t RQ_BA1  = 6;
	constexpr static uint8_t RQ_BE0  = 7;
	constexpr static uint8_t RQ_BE1  = 8;
	constexpr static uint8_t RQ_AA0  = 9;
	constexpr static uint8_t RQ_AA1  = 10;
	constexpr static uint8_t RQ_ADC  = 11;
	constexpr static uint8_t RQ_ADC_DAC_STROKE  = 12;
};

#endif // B15F_h