#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <strings.h>
#include <inttypes.h>
#include "ui.h"
#include "hvc.h"
#include "printx.h"
#include "serial.h"

#define	DEVICE1				"/dev/ttyACM1"
#define	SPEED				B19200
#define HVC_POLLING_TIME	500000
#define	WAIT_BEFORE_RETRY	5000
#define	GET_DEVICE_MODEL	'A'
#define	DEVICE_MODEL_HVC	'C'
#define	GET_TEMP			'H'

// Globals
int		hvc_fd = -1;
bool	hvcStop = false;
bool	sPump = false;
bool	sHeat = false;
struct	termios hvcSaveterm;

bool initHVC()
{
	unsigned char data;
	printx(DEBUG, HVC, "Connecting to interface 1\n");
	if(init_serial(DEVICE1, SPEED, &hvc_fd, &hvcSaveterm))
	{
		printx(DEBUG, HVC, "Connected to an interface\n");
		sendData(&hvc_fd, GET_DEVICE_MODEL);
		printx(DEBUG, HVC, "Sended identification request %02x\n", GET_DEVICE_MODEL);
		data = getData(&hvc_fd);
		if(data == DEVICE_MODEL_HVC)
			printx(INFO, HVC, "HVC Arduino connected\n");
		else
			printx(DEBUG, HVC, "HVC Arduino not found, response was %02x\n", data);
	}
	else
	{
		printx(WARNING, HVC, "Unable to connect to such interface\n");
		return false;
	}

	return true;
}

void* processHVC(void* we)
{
	uint8_t data;

	while(!hvcStop)
	{
		printx(DEBUG, HVC, "Querying data\n");
		sendData(&hvc_fd, GET_TEMP);
		data = getData(&hvc_fd);
		setTemp(data);

		usleep(HVC_POLLING_TIME);
	}

	return NULL;
}