#include "pch.h"
#include <iostream>
#include <fstream>
#include <string>

using namespace std;
/*
	This is just a function implementation of a
	section of project.
	need to read a file ( attached ) , update
	the amount of the specified client given the client id in the file. Then write back to the file  */

class editor {
private:
	fstream fs;
	ofstream ofs_1;
public:
	editor()
	{
		fs.open("users.txt", ios::ios_base::in || ios::ios_base::out);
		ofs_1.open("users1.txt", ios::ios_base::app);
		unsigned int stat_cap, id, acc_no;
		string fname, lname;
		if (ofs_1.is_open())
		{
			if (fs.is_open())
			{
				while (fs >> id >> fname >> lname >> acc_no >> stat_cap)
				{
					if (id == get_id())
					{
						std::cout << id << "  " << fname + " " + lname << "  " << acc_no << "  " << stat_cap << std::endl;
						std::cout << "editing ..." << std::endl;
						edit(std::ref(stat_cap));
						ofs_1 << id << fname + " " + lname << "  " << acc_no << "  " << stat_cap << std::endl;
					}
					ofs_1 << id << fname + " " + lname << "  " << acc_no << "  " << stat_cap << std::endl;
				}
			}
			else
			{
				perror("Read file could not open");
			}
		}
		else
		{
			perror("Write file could not open");
		}
	}
	unsigned int get_id()
	{
		unsigned int passed_id;
		std::cout << " Enter your id : ";
		cin >> passed_id;

		return passed_id;
	}
  unsigned int edit(unsigned int &stat_cap)
{
	unsigned int *ptr = NULL;
	ptr = &stat_cap;
	stat_cap = *ptr + 10000;
	return stat_cap;
}
};


int main()
{
	int status;
	editor edit_it;
	status = remove("users.txt");
	if (status == 0)
	{
		std::cout << " Original file deleted successfully" << std::endl;
	}
	else
	{
		std::cout << " Error ! original file could not be deleted  " << std::endl;
	}
	return 0;
}