#include <default.c>
#include <stdio.h>
#include <windows.h>

typedef struct SYSTEMTIME {
	WORD wYear;
	WORD wMonth;
	WORD wDayOfWeek;
	WORD wDay;
	WORD wHour;
	WORD wMinute;
	WORD wSecond;
	WORD wMilliseconds;
} SYSTEMTIME;

int _stdcall SystemTimeToVariantTime(SYSTEMTIME *lpSystemTime, DATE *pvtime);

DATE ConvertTime(int year, int month, int day, int hour, int minute, int second)
{
	SYSTEMTIME Time;
	DATE vTime;

	memset(&Time, 0, sizeof(SYSTEMTIME));
	Time.wYear = year;
	Time.wMonth = month;
	Time.wDay = day;
	Time.wHour = hour;
	Time.wMinute = minute;
	Time.wSecond = second;

	SystemTimeToVariantTime(&Time, &vTime);
	return vTime;
}

function main()
{
	FILE *in, *tmp, *out;

	if (!(in = fopen("EURUSD_M1_201312.csv", "r"))) {
		printf("\ncan't open input file");
		return;
	}

	if (!(tmp = tmpfile())) {
		printf("\ncan't open temporary file");
		return;
	}

	if (!(out = fopen("export.bar", "wb"))) {
		printf("\ncan't open output file");
		return;
	}

	char line[64];
	TICK tick;

	int lines = 0, errors = 0;
	while (fgets(line, 64, in)) {
		int year, month, day, hour, minute, second;
		if (sscanf(line, "%4d%2d%2d %2d%2d%2d;%f;%f;%f;%f;",
			&year, &month, &day, &hour, &minute, &second,
			&tick.fOpen, &tick.fHigh, &tick.fLow, &tick.fClose) == 10) {
			tick.time = ConvertTime(year, month, day, hour, minute, second);
			if (!fwrite(&tick, sizeof(TICK), 1, tmp)) {
				printf("\nwrite error");
				return;
			}
		} else {
			errors++;
		}
		lines++;
	}

	printf("\nStep 1/2: %d lines parsed (%d errors)", lines, errors);	

	int offset, bars = 0;
	for (offset = ftell(tmp) - sizeof(TICK); offset >= 0; offset -= sizeof(TICK)) {
		fseek(tmp, offset, SEEK_SET);
		if (fread(&tick, sizeof(TICK), 1, tmp)) {
			if (!fwrite(&tick, sizeof(TICK), 1, out)) {
				printf("\nwrite error");
				return;
			}
			bars++;
		}			
	}

	fclose(out);
	printf("\nStep 2/2: %d bars saved", bars);	
}