#include <iostream>
#include <fstream>
#include <cstring>
#include <windows.h>
#include <cstdlib>
#include "windows.h"
#include <string.h>
#include <string>
#include <stack>
#include <sstream>
#include <vector>

using namespace std;

int main()
{
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);

    const int nameLength = 41;
    const int length_year = 5;
    const int saleryLength = 5;

    const int bufferLentgh = nameLength + length_year + saleryLength;

    struct Woker
    {
        char name[nameLength + 1];
        int birtdayData;
        int salery;
    };

    const int baseLen = 100;

    Woker baseW[baseLen];

    char buffer[bufferLentgh + 1];

    char timeName[nameLength + 1];

    ifstream file("db_otd_wokers1.txt");

    if (!file.is_open())
    {
        cout << " Error of opening!!! " << endl;

        system("pause");
        return 1;
    }
    
    int i = 0;
    while (!file.eof())
    {
        file.getline(buffer, bufferLentgh);
        strncpy(baseW[i].name, buffer, nameLength);
        baseW[i].name[nameLength] = '\0';
        baseW[i].birtdayData = atoi(&buffer[nameLength]);
        baseW[i].salery = atoi(&buffer[nameLength + length_year+1]);
        cout << " Name: " << baseW[i].name << "\t Year: " << baseW[i].birtdayData << " Salery: " << baseW[i].salery << endl;
        i++;
        if (i > baseLen)
        {
            puts(" File very big! ");
            return 1;
        }
    }
    file.close();

    int countOfWokers = i, searchingWokers = 0;
    float allSalery = 0;

    while (true)
    {
        cout << " Enter lastname of worker for searching (end if you want exit):  ";
        cin >> timeName;
        OemToChar(timeName, (LPWSTR)timeName);

        if (strcmp(timeName, "end") == 0)
        {
            break;
        }
        bool not_found = true;
        for (int k = 0; k < countOfWokers; k++)
        {
            if (strstr(baseW[k].name, timeName))
            {
                if (baseW[k].name[strlen(timeName)] == ' ')
                {
                    cout << " Name: " << baseW[k].name << "\t Year: " << baseW[k].birtdayData << " Salery: " << baseW[k].salery << endl;
                    searchingWokers++;
                    allSalery += baseW[k].salery;
                    not_found = false;
                }
            }
        }
        if (not_found)
        {
            cout << " This woker don`t exist! " << endl;
        }
    }
    if (searchingWokers > 0)
    {
        cout << " Average of salery = " << allSalery / searchingWokers << endl;
    }


    system("pause");
    return 0;
}