Employees.cpp

// Incluimos las librerias necesarias

#include <iostream>
#include <string>
#include <array>
#include <vector>
#include <cstdlib>
#include <cstdint>

// ----------------------------------
// ESTRUCTURAS

struct Employee
{
    std::string name{};
    std::uint16_t totalRequests{};
    float salary{};
    float bonus{};
};

// ----------------------------------
// FUNCIONES

void clearScreen()
{
    system("cls");
}

void pauseScreen()
{
    std::cout << "Press Enter to continue...";
    std::cin.ignore();
    std::cin.get();
}

float calculateBonus(std::uint16_t requests)
{

    if(requests >= 2000 && requests <= 2500)
    {
        return 1500.0f;
    }
    else if(requests >= 2501 && requests <= 3000)
    {
        return 2000.0f;
    }
    else if(requests > 3000)
    {
        return 3000.0f;
    }
    else{
        return 0.0f;
    }
}

Employee readEmployee()
{
    Employee emp;
    std::cout << "Insert name: ";
    std::cin >> std::ws;
    std::getline(std::cin, emp.name);
    std::cout << "Insert total of requests: ";
    std::cin >> emp.totalRequests;
    std::cout << "Insert salary: ";
    std::cin >> emp.salary;
    emp.bonus = calculateBonus(emp.totalRequests);
    return emp;
}

void printEmployee(const Employee& employee)
{
    std::cout << "Name: " << employee.name;
    std::cout << "\nTotal request: " << employee.totalRequests;
    std::cout << "\nSalary: " << employee.salary;
    std::cout << "\nBonus: " << employee.bonus << "\n\n";
}

void printEmployees(const std::vector<Employee> &arr)
{
    clearScreen();
    if(arr.empty())
    {
        std::cout << "There aren't employees yet!\n";
    }
    else
    {   
        for(int i = 1; Employee emp : arr)
        {
            std::cout << "EMPLOYEE NO. " << i << ": \n";
            printEmployee(emp);
            i++;
        }
    }
    pauseScreen();
}

void storeEmployee(std::vector<Employee> &arr)
{
    char band = 'n';
    do
    {
        clearScreen();
        std::cout << "--- INSERT AN EMPLOYEE ---\n\n";
        Employee emp = readEmployee();
        arr.push_back(emp);
        std::cout << "\nDo you want to insert a new employee?(s/n): ";
        std::cin >> band;

    } while (band == 's' || band == 'S');
}

std::array<Employee, 3> chooseBestThree(const std::vector<Employee>& arr)
{
    std::array<size_t, 3> bestThree{};
    std::uint8_t i{0};
    while(i < 3)
    {
        std::uint16_t higherRequests = 0;
        for(size_t j = 0; j < arr.size(); j++)
        {
            if(i == 0)
            {
                if(higherRequests < arr[j].totalRequests)
                {
                    higherRequests = arr[j].totalRequests;
                    bestThree[i] = j;
                }
            }
            else if(i == 1)
            {
                if(j == bestThree[0])
                {
                    continue;
                }
                else 
                {
                    if(higherRequests < arr[j].totalRequests)
                    {
                        higherRequests = arr[j].totalRequests;
                        bestThree[i] = j;
                    }
                }
            }
            else
            {
                if(j == bestThree[0] || j == bestThree[1])
                {
                    continue;
                }
                else
                {
                    if(higherRequests < arr[j].totalRequests)
                    {
                        higherRequests = arr[j].totalRequests;
                        bestThree[i] = j;
                    }
                }
            }
        }
        i++;
    }
    return
    {
        arr[bestThree[0]],
        arr[bestThree[1]],
        arr[bestThree[2]]
    };
}

// ----------------------------------
// FUNCION PRINCIPAL

int main()
{
    std::vector<Employee> employees;
    char bandSwitch{'y'};
    do
    {
        switch (bandSwitch)
        {
        case 'y':
            clearScreen();
            std::cout << "--- MAIN MENU ---\n\n";
            std::cout << "1. Insert an employee.\n";
            std::cout << "2. See employees. \n";
            std::cout << "3. Choose best 3.\n";
            std::cout << "4. Worst of best 3.\n";
            std::cout << "0. Exit.\n\n";
            std::cout << "Option: ";
            std::cin >> bandSwitch;
            break;

        case '1':
            storeEmployee(employees);
            bandSwitch = 'y';
            break;

        case '2':
            printEmployees(employees);
            bandSwitch = 'y';
            break;

        case '3':
        {
            std::array<Employee, 3> bestThree = chooseBestThree(employees);
            for(Employee emp : bestThree)
            {
                printEmployee(emp);
            }
            pauseScreen();
            bandSwitch = 'y';
            break;            
        }


        case '4':
            if(employees.empty())
            {
                clearScreen();
                std::cout << "There aren't employees yet!\n\n";
                pauseScreen();
                clearScreen();
            }
            else if(employees.size() < 2)
            {
                clearScreen();
                std::cout << "There aren't enough employees!\n\n";
                pauseScreen();
                clearScreen();
            }
            else{
                printEmployee(chooseBestThree(employees)[2]);
            }
            bandSwitch = 'y';
            break;

        case '0':
            clearScreen();
            std::cout << "See you later!\n";
            pauseScreen();
            clearScreen();
            bandSwitch = 'j';
            break;

        default:
            std::cout << "Invalid input, try again.\n\n";
            pauseScreen();
            clearScreen();
            bandSwitch = 'y';
            break;
        }

    } while (bandSwitch != 'j');
    return 0;
}