/*
 * W1CounterDevice.cc
 *
 *  Created on: Oct 30, 2010
 *      Author: lamikr
 */

#include <iostream>
#include <fstream>
#include <sstream>
#include <iomanip>

#include <vector>

#include <plp/log.h>

#include "W1CounterDevice.hh"

using namespace std;
using namespace w1;

template <class NumberDataType>
bool string_to_number(NumberDataType& result,
                 const std::string& string_param,
                 std::ios_base& (*format)(std::ios_base&))
{
	std::istringstream iss(string_param);
	return !(iss >> format >> result).fail();
}

W1CounterDevice::W1CounterDevice(string device_id_param,
		string device_type_param,
		dirent *direntry_param): W1Device(device_id_param, device_type_param, direntry_param) {
	string text;

	ifstream ifs(slave_file.c_str());
	if (ifs.is_open() == false) {
		log_error("%s: %s failed to read data from file: %s\n", id.c_str(), get_type().c_str(), slave_file.c_str());
		log_error("Verify that you have w1_ds2423 kernel module loaded.\n");
		ifs.close();
	}
}

W1CounterDevice::~W1CounterDevice() {
	// TODO Auto-generated destructor stub
}

vector<double> *W1CounterDevice::get_raw_data() {
	int		pos;
	int		b_cnt;
	string		val_str;
	int		val_int;
	vector<double>	*ret_val;

	ret_val	= NULL;
	ifstream ifs(slave_file.c_str());
	if (ifs.is_open() == true) {
		while(getline(ifs, val_str)) {
			b_cnt	= val_str.length();
			if (b_cnt > 0) {
				pos	= val_str.find("crc=YES c=");
				if ((pos >= 0) &&
				    ((pos + 10) < b_cnt)) {
					if (ret_val == NULL) {
						ret_val	= new vector<double>();
					}
					val_str	= val_str.substr(pos + 10);
					string_to_number<int>(val_int, val_str, dec);
					ret_val->push_back(val_int);
				}
			}
		}
		ifs.close();
	}
	return ret_val;
}

string W1CounterDevice::get_unit() {
	return "";
}

unsigned int W1CounterDevice::get_data_decimal_precision() {
	return 0;
}