Lab_10/6 var (IIl semester)

//Lab_10_var8
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <windows.h>
#include <fstream>
#include <string>
using namespace std;

struct Schoolboy
{
    string name, surname, Сlass;
    string phone;
    int grades[4];
};
Schoolboy x[100];
int countRow = 0;
void outputScreen()
{
    cout << " Structure Schoolboy" << endl;
    cout << " __________________________________________________________________________" << endl;
    cout << " |№ |    Name    |  Surname   |    Сlass   |    Phone    | M | P | R | L | " << endl;
    cout << " |--|------------|------------|------------|-------------|---|---|---|---|" << endl;
    for (int i = 0; i < countRow; i++)
    {
        cout << left << " |" << setw(2) << i + 1 << "|" << setw(12) << x[i].name << "|" << setw(12)
            << x[i].surname << "|" << setw(12) << x[i].Сlass << "|" << setw(13) << x[i].phone
            << "|" << setw(3) << x[i].grades[0] << "|" << setw(3) << x[i].grades[1] << "|"
            << setw(3) << x[i].grades[2] << "|" << setw(3) << x[i].grades[3] << "|" << endl;
    }
    cout << " __________________________________________________________________________" << endl;
}
void inputFile()
{
    ifstream input;
    input.open("Input.txt", ios::in);
    if (input.fail()) {
        cout << "Could not open file" << endl;
        system("pause");
    }
    do
    {
        input >> x[countRow].name >> x[countRow].surname >> x[countRow].Сlass >> x[countRow].phone >> x[countRow].grades[0]
            >> x[countRow].grades[1] >> x[countRow].grades[2] >> x[countRow].grades[3];
        countRow++;
    } while (!input.eof());
    input.close();
    cout << "\nFile read out. Number of items = " << countRow << endl;
    outputScreen();
}

void outputFile()
{
    ofstream output;
    output.open("Output.txt", ios::out);
    if (output.fail())
    {
        cout << "Could not create file" << endl;
        system("pause");
    }
    for (int i = 0; i<countRow; i++)
    {
        output << setw(10) << x[i].surname << " " << setw(10) << x[i].name << " " << setw(10) << x[i].Сlass << " " << setw(11) << x[i].phone << " " << setw(11) << x[i].grades;
        if (i != countRow - 1)
            output << endl;
        if (output.fail())
            break;
    }
    output.close();
    cout << "File created" << endl;
}

void addSchoolboy()
{
    int countAddRow;
    cout << "How many lines to add: ";
    cin >> countAddRow;
    for (int j = 0; j<countAddRow; j++)
    {
        cout << "-Enter Schoolboy Data-" << endl;
        cout << "Surname: ";
        cin >> x[countRow].surname;
        cout << "Name: ";
        cin >> x[countRow].name;
        cout << "Сlass: ";
        cin >> x[countRow].Сlass;
        cout << "Phone: ";
        cin >> x[countRow].phone;
        cout << "Mathematics: ";
        cin >> x[countRow].grades[0];
        cout << "Physics: ";
        cin >> x[countRow].grades[1];
        cout << "Russian language: ";
        cin >> x[countRow].grades[2];
        cout << "Literature: ";
        cin >> x[countRow].grades[3];
        countRow++;
    }
    outputScreen();
}


void deleteSchoolboy()
{
    int ptr = 0;
    for (int i = 0; i < countRow; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            if (x[i].grades[j] == 2)
            {
                for (int ii = i; ii <= countRow; ii++)
                    x[ii] = x[ii + 1];
                i--;
                countRow--;
            }
        }
    }
    outputScreen();
}

int main()
{
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);
    setlocale(LC_ALL, 0);
    int option;
    cout << "Structure Schoolboy" << endl;
    while (1)
    {
        cout << "1-Input from a text file" << endl;
        cout << "2-View data" << endl;
        cout << "3-Saving to text file" << endl;
        cout << "4-Add K elements to the end of the file" << endl;
        cout << "5-Delete all items that have 2 at least one school subject" << endl;
        cout << "6-Exit" << endl;
        cout << "Your choice (1-6): ";
        cin >> option;
        switch (option)
        {
        case 1: inputFile(); break;
        case 2: outputScreen(); break;
        case 3: outputFile(); break;
        case 4: addSchoolboy(); break;
        case 5: deleteSchoolboy(); break;
        case 6: exit(0);
        default: cout << "Invalid value entered" << endl;
            break;
        }
    }
}