#pragma once
#include <vector>
#include <fstream>
#include <time.h>
#include <sstream>
#include <chrono>



class FileTools
{
private:
	std::string mPath;
public:
	FileTools(std::string path){
		mPath = path;
	}
	void createLog(std::string log)
	{
		time_t now = time(0);
		tm *ltm = localtime(&now);
		char loc_date[30];
		sprintf(loc_date, "%d%02d%02d  %d:%d:%d", 1900 + ltm->tm_year, 1 + ltm->tm_mon, ltm->tm_mday,ltm->tm_hour, ltm->tm_min, ltm->tm_sec);
		std::ofstream ofs(mPath);
		ofs << loc_date << ":	" << log << std::endl;
		ofs.close();
	}
	void appendLog(std::string log, bool printTime = true)
	{
		std::ofstream ofs(mPath, std::ios::app);
		if(printTime){
		time_t now = time(0);
		tm *ltm = localtime(&now);
		char loc_date[30];
		sprintf(loc_date, "%d%02d%02d  %d:%d:%d", 1900 + ltm->tm_year, 1 + ltm->tm_mon, ltm->tm_mday,ltm->tm_hour, ltm->tm_min, ltm->tm_sec);
		ofs << loc_date << ":	" << log << std::endl;
		}else{
		ofs << "	" << log << std::endl;
		}
		ofs.close();
	}
};


class StopWatch
{
public:
	StopWatch() {
		_start = std::chrono::steady_clock::now();
	}

	void reset() {
		_start = std::chrono::steady_clock::now();
	}

	double elapsed_s() {
		return std::chrono::duration<double>(std::chrono::steady_clock::now() - _start).count();
	}

	double elapsed_ms() {
		return std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - _start).count();
	}

	double elapsed_us() {
		return std::chrono::duration<double, std::micro>(std::chrono::steady_clock::now() - _start).count();
	}

	double elapsed_ns() {
		return std::chrono::duration<double, std::nano>(std::chrono::steady_clock::now() - _start).count();
	}

private:
	std::chrono::steady_clock::time_point _start;
};