/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2010, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "stats.h"
#include <fstream>
#include "data.h"
#include "core/log.h"


namespace Stats
{


std::string stats_file;


void ReadStats(std::ifstream & file)
{
	file >> stats_start;
	file >> stat_global.all;
	file >> stat_global.unique;
	file >> stat_global.google;
	file >> stat_global.yahoo;

	size_t len;
	file >> len;

	Stats s;
	long item_id;

	for(size_t i = 0 ; i<len && !file.eof() ; ++i)
	{
		file >> item_id;
		file >> s.all;
		file >> s.google;
		file >> s.yahoo;

		stats_tab.insert( std::make_pair(item_id, s) );
	}
}




void ReadStats()
{
	if( stats_file.empty() )
		return;
	
	std::ifstream file(stats_file.c_str());

	if( !file )
	{
		log << log1 << "Stats: I cannot open the stats file: " << stats_file << logend;
		return;
	}

	ReadStats(file);
	file.close();

	log << log3 << "Stats: statistics loaded from: " << stats_file
		<< " (" << stats_tab.size() << " items)" << logend;
}




void SaveStats(std::ofstream & file)
{
	file << stats_start << std::endl;

	file << stat_global.all		<< ' ';
	file << stat_global.unique	<< ' ';
	file << stat_global.google	<< ' ';
	file << stat_global.yahoo	<< ' ';
	file << std::endl;

	file << stats_tab.size() << std::endl;

	std::map<long, Stats>::iterator i = stats_tab.begin();

	for( ; i != stats_tab.end() ; ++i)
	{
		file << i->first			<< ' ';
		file << i->second.all		<< ' ';
		file << i->second.google	<< ' ';
		file << i->second.yahoo		<< ' ';
		file << std::endl;
	}
}


void SaveStats()
{
	if( stats_file.empty() )
		return;
	
	std::ofstream file(stats_file.c_str());

	if( !file )
	{
		log << log1 << "Stats: I cannot open the stats file: " << stats_file << logend;
		return;
	}

	SaveStats(file);
	file.close();

	log << log3 << "Stats: statistics saved to: " << stats_file << logend;
}

} // namespace