MAIN

#include "BookInformation.h"
#include "Array.h"
#include "io.h"

using namespace std;

const string INVALID_OPEN = "Unable to open the file!";
const string EMPTY_FILE = "File is empty!";

void ifAuthor(string &book, const unsigned int& nOfStr, unsigned int &index);
void ifTitle(string& book, const unsigned int& nOfStr, unsigned int& index);
void ifPublishingYear(string& book, const unsigned int& nOfStr, unsigned int& index);
void ifDiscipline(string& book, const unsigned int& nOfStr, unsigned int& index);
void ifNumberOfCopies(string& book, const unsigned int& nOfStr, unsigned int& index);

int main()
{
    setlocale(LC_ALL, "ru");

    ifstream in("Books.txt");
    try
    {
        // проверка на открытие файла
        if (!in)
            throw INVALID_OPEN;

        // проверка не пуст ли файл
        in.seekg(0, ios::end);
        unsigned int size = in.tellg();
        if (!size)
            throw EMPTY_FILE;

        // инициализация массива
        unsigned int nBooksArray = 100;
        BookInformation* booksArray = new BookInformation[nBooksArray];

        // цикл считывания строк из файла
        unsigned int nOfStr = 0;
        while (!in.eof())
        {
            try
            {
                string book;
                ++nOfStr;
                getline(in, book);

                // проверка количества разделителей
                unsigned int nBars = 0;
                for (unsigned int i = 0; book[i] != '\0'; ++i)
                {
                    if (book[i] == '|')
                        ++nBars;
                    if (nBars > 5)
                        throw nOfStr;
                }
                if (nBars != 5)
                    throw nOfStr;

                unsigned int index = 0;
                ifAuthor(book, nOfStr, index);
                //ifTitle(book, nOfStr, index);
                //ifPublishingYear(book, nOfStr, index);
                //ifDiscipline(book, nOfStr, index);
                //ifNumberOfCopies(book, nOfStr, index);

            }
            catch (const unsigned int& err)
            {
                cerr << "There is an error in " << err << " string!" << endl;
            }
        }

        delete[] booksArray;
    }

    catch (const string& error)
    {
        cerr << endl << error << endl;
        return -1;
    }

    return 0;
}