#include "stdafx.h"
#include <stdio.h>
#include <iostream>
#include <conio.h>
#include <fstream>
#include <string.h>
#include <iomanip>
using namespace std;

struct employee
{
	char name[100];
	float salary;
	int stage;
};

int i = 0, n, kol;
char filename[50]; char surname[30];

void inputfile(employee x[])
{
	ifstream fin;
	fin.open(filename, ios_base::in);
	if (fin.fail()) { cout << "Error! The file is not found"; _getch();  exit(0); }
	else {
		cout << "The file has been successfully opened!" << endl;
		while (!fin.eof())
		{
			fin >> x[i].name >> surname >> x[i].salary >> x[i].stage;
			strcat_s(x[i].name, " ");
			strcat_s(x[i].name, surname);
			i++;
		}
	}
	fin.close();
	n = i;
}

void output(employee x[])
{
	kol = 0;
	cout << "\nThe list of employees:\n" << endl;
	for (i = 0; i < n; i++) {
		kol++;
		cout << setw(10) << kol << ". " << setw(20) << x[i].name << setw(10) << x[i].salary << " " << setw(5) << x[i].stage << endl;
	}
}

void add(employee x[]) {
	int k = 0;
	cout << "\nHow many people are going to be added? "; cin >> k;
	if (k == 0) cout << "No new employees are going to be added to the list.";
	else {
		ofstream fout;
		fout.open(filename, ios_base::app);
		if (!fout.is_open()) { cout << "\tFile Error!"; }
		else {
			for (i = n; i < n + k; i++) {
				cout << "\nEnter the name:";
				cin >> x[i].name;
				cout << " and surname:"; cin >> surname;
				strcat_s(x[i].name, " ");
				strcat_s(x[i].name, surname);
				cout << "\nSalary:";
				cin >> x[i].salary;
				cout << "\nWork experience:";
				cin >> x[i].stage;
				fout << "\n" << x[i].name << " " << x[i].salary << " " << x[i].stage;
			}
		}
		fout.close();
		ifstream fin;
		fin.open(filename, ios_base::in);
		while (!fin.eof())
		{
			fin >> x[i].name >> surname >> x[i].salary >> x[i].stage;
			strcat_s(x[i].name, " ");
			strcat_s(x[i].name, surname);
			i++;
		}
		fin.close();
		kol = 0;	n += k;
		cout << "\nThe new list of employees:\n" << endl;
		for (i = 0; i < n; i++) {
			kol++;
			cout << setw(10) << kol << ". " << setw(20) << x[i].name << setw(10) << x[i].salary << " " << setw(5) << x[i].stage << endl;
		}
	}

}

void poisk(employee x[])
{
	cout << "\nEmployees, whose stage > 10 and  salary > 15 000:" << endl;
	char fl = 'L';
	kol = 0;
	for (i = 0; i < n; i++) {
		if ((x[i].stage > 10) && (x[i].salary>15000)) {
			kol++;
			cout << setw(10) << kol << ". " << setw(20) << x[i].name << setw(10) << x[i].salary << " " << setw(5) << x[i].stage << endl;
		}
	}
}

void sort(employee x[])
{
	cout << "\nThe sorted list of employees, based on their salary:\n" << endl;
	employee temp;
	for (int m = 0; m < i - 1; m++) {
		for (int j = 0; j < i - m - 1; j++) {
			if (x[j].salary > x[j + 1].salary) {
				temp = x[j];
				x[j] = x[j + 1];
				x[j + 1] = temp;

			}
		}
	}
	kol = 0;
	for (i = 0; i < n; i++) {
		kol++;
		cout << setw(10) << kol << ". " << setw(20) << x[i].name << setw(10) << x[i].salary << " " << setw(5) << x[i].stage << endl;
	}
}

void del(employee x[]) {
	int s; i = 0; kol = 0;
	cout << "\nWhich string should be deleted? #";
	cin >> s;
	if (s == 0) cout << "None.";
	else {
		s--;
		n--;
		for (int c = s; c < n; c++)
		{
			x[c].salary = x[c + 1].salary;
			x[c].stage = x[c + 1].stage;
			for (int p = 0; p<100; p++)x[c].name[p] = x[c + 1].name[p];
		}
		i--;
		ofstream fout;
		fout.open(filename, ios_base::out | ios_base::trunc);
		for (i = 0; i < n; i++) {
			fout << x[i].name << " " << x[i].salary << " " << x[i].stage << endl;;
		}
		fout.close();
		ifstream fin;
		fin.open(filename, ios_base::in);
		while (!fin.eof())
		{
			fin >> x[i].name >> surname >> x[i].salary >> x[i].stage;
			strcat_s(x[i].name, " ");
			strcat_s(x[i].name, surname);
			i++;
		}
		fin.close();
		cout << "\nThe new list without the deleted string:" << endl;
		for (i = 0; i < n; i++) {
			kol++;
			cout << setw(10) << kol << ". " << setw(20) << x[i].name << setw(10) << x[i].salary << " " << setw(5) << x[i].stage << endl;
		}
	}
}
int _tmain(int argc, _TCHAR argv[])
{
	employee a[20];
	cout << "File's address: ";
	cin >> filename;
	inputfile(a);
	output(a); cout << endl;
	add(a); cout << endl;
	poisk(a); cout << endl;
	sort(a); cout << endl;
	del(a); cout << endl;
	_getch();
	return 0;
}