#define _CRT_SECURE_NO_WARNINGS
#define EXIT 4
#define SIZE_STR 20

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
int printMenu(void);
int searchFile(FILE* file);
void cleanBuffer(char* buffer, int* indexBuffer);
int main(int argc, char** argv)
{
	FILE* csvfile;
	int choice = 0, flag = 0;
	csvfile = fopen("C:\\Users\\ronra\\Desktop\\example2.csv", "r");
	while (choice != EXIT)
	{
		choice = printMenu();
		switch (choice)
		{
		case 1:
		{
			flag = searchFile(csvfile);
			if (flag != 0)
			{
				printf("Value was found in row %d\n", flag);
			}
			else
			{
				printf("Value Wasn't Found");
			}
			break;
		}
		case 2:
		{
			break;
		}
		case 3:
			printf("");
			{
				printf("");
				break;
			}
		case EXIT:
		{
			printf("Good bye!");
		}
		default:
		{
			printf("Try agian.");
			break;
		}
		}
	}
	fclose(csvfile);
	getchar();
}
int printMenu(void)
{
	int choice = 0;
	printf("Please enter your choice:\n1 - Search a term in the document.\n2 - change a value in a specific place.\n3 - copy a value from one place to another\n4- Exit\n");
	scanf("%d", &choice);
	getchar();
	return choice;
}
int searchFile(FILE* file)
{
	int c, rowInsexOrflag = 1, row = 1, indexBuffer = 0, flag = 0;
	char str[SIZE_STR] = { 0 };
	char buffer[SIZE_STR] = { 0 };
	int indexRowOrFlag = 0;
	printf("Enter value to search: ");
	fgets(str, SIZE_STR, stdin);
	str[strlen(str) - 1] = '\0';
	while (buffer[indexBuffer] != EOF)
	{
		buffer[indexBuffer] = fgetc(file);
		if (buffer[indexBuffer] == ',' || buffer[indexBuffer] == '\n' || buffer[indexBuffer] == EOF)
		{
			if (buffer[indexBuffer] == '\n')
			{
				flag++;
			}
			buffer[indexBuffer] = 0;
			indexBuffer--;
			if (strcmp(str, buffer) == 0)
			{
				rowInsexOrflag = row;
				return rowInsexOrflag;
			}
			cleanBuffer(&buffer, &indexBuffer);
			indexBuffer--;
			if (flag == 1)
			{
				flag--;
				row++;
			}
		}
		indexBuffer++;
	}
	indexRowOrFlag = 0;
	return indexRowOrFlag;
}
void cleanBuffer(char* buffer, int* indexBuffer)
{
	for (int i = 0; i < strlen(buffer); i++)
	{
		buffer[i] = '\0';
	}
	*indexBuffer = 0;
}