/*
 * W1Store.cc
 *
 *  Created on: Oct 31, 2010
 *      Author: lamikr
 */

#include <list>
#include <string>
#include <iostream>
#include <fstream>

#include <time.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#include "W1Store.hh"

using namespace std;
using namespace w1;

std::string W1Store::location = "/tmp/";

W1Store::W1Store() {
	// TODO Auto-generated constructor stub
}

W1Store::~W1Store() {
	// TODO Auto-generated destructor stub
}

void W1Store::set_location(string location_param) {
	string::size_type pos;

	location	= location_param;
	pos		= location.find_last_of("/");
	if (pos != location.length()) {
		location	= location + "/";
	}

}

void W1Store::store(std::string device_id, std::list<std::string> *string_list) {

	string file_path;
	string text_line;

	time_t 		wtime;
	struct tm 	*ltime;
	char 		buffer[80];
	string		year;
	string		month;
	string		date;

	time(&wtime);
	ltime	= localtime(&wtime);
	strftime(buffer, 80, "%Y", ltime);
	year	= buffer;
	strftime(buffer, 80, "%m", ltime);
	month	= buffer;
	strftime(buffer, 80, "%Y-%m-%d", ltime);
	date	= buffer;

	struct tm * gmtime(const time_t *timer);
	struct tm * localtime(const time_t * timer);
	struct stat st;

	file_path 	= location + year;
	if (stat(file_path.c_str() ,&st) != 0) {
		mkdir(file_path.c_str(), 0755);
	}
	file_path	= file_path + "/" + month;
	if (stat(file_path.c_str() ,&st) != 0) {
	        mkdir(file_path.c_str(), 0755);
	}
	file_path	= file_path + "/" + device_id + "_" + date + ".txt";
	ofstream data_file(file_path.c_str(), ios::app);
	cout << "storing to " << file_path << ", data size " << string_list->size() << endl;
	// TODO: add mutex to protect string_list while it's read and emptied
	if (data_file.is_open()) {
		while(string_list->size() > 0) {
			text_line	= string_list->front();
			string_list->pop_front();
			if (text_line.length() > 0) {
				cout << "storing line: " << text_line << endl;
				data_file << text_line << endl;
			}
		}
		data_file.close();
	}
	else {
		cout << "could not open file " << file_path << " for writing data." << endl;
	}
}