// ConsoleApplication5.cpp : Defines the entry point for the console application.
//

#include <iostream>
#include<fstream>
#include<string>

using namespace std;

struct korabi
{
    string marshrut;
    string ime;
    int ndata;
    int kdata;
    string kapitan;
    string konteiner;
    string sum;

};


void input(korabi[], int &n);
void output(korabi[], int &n);
void prodljitelnost(korabi k[], int &n);
int main()
{
    int n;
    int ch;
    korabi k[20];
    do {
        cout << "\n 1.Input information about shiping transports and show it to display:";
        cout << "\n 2. Search by a name:";
        cout << "\n 3. Which is biggest shipping transport:";
        cout << "\n 4.Exit.";
        cout << "\n Your choice is:";
        cin >> ch;
        switch (ch)
        {
        case 1:
            input(k, n);

            break;
        case 2:
            output(k, n);
            break;
        case 3:
            prodljitelnost(k, n);
            break;
        }
    } while (ch!=4);

    return 0;

}


void input(korabi k[], int &n)
{
    fstream fp;
    fp.open("prevozi.dat", ios::binary | ios::out);

    cout << "\n How much ships:";
    cin >> n;
    int i;
    for (i = 0; i < n; i++)
    {
        cin.ignore();
        cout << "\n What is the route of the ship:";
        getline(cin, k[i].marshrut);
        cout << "\n What is the name of the ship:";
        cin >> k[i].ime;
        cout << "\n What is the first date:";
        cin >> k[i].ndata;
        cout << "\n What is the end date:";
        cin >> k[i].kdata;
        cout << "\n What is the name of the captain:";
        cin >> k[i].kapitan;
        cout << "\n What is the count of the trailers:";
        cin >> k[i].konteiner;
        cout << "\n What is the all incoming funds:";
        cin >> k[i].sum;
    }
    for (i = 0; i < n; i++) {
        cout << "\nName: " << k[i].ime << "|" << "\nFirst date:" << k[i].ndata << "|" << "\nEnd date:" << k[i].kdata << "|" << "\nName of captain:" << k[i].kapitan << "|" << "\nCount of the trailers:" << k[i].konteiner << "|" << "\nAll funds:" << k[i].sum << endl;
    }
    fp.write((char*)(&k), n * sizeof(k));
    fp.close();
}
void output(korabi k[], int &n)
{
    fstream fp;
    fp.open("prevozi.dat", ios::binary | ios::in);
    fp.read((char*)(&k), n * sizeof(k));

    bool choice = true;
    char ch;
    while (choice)
    {
        string name;
        cout << "\n Enter name to search:";
        cin >> name;

        for (int i = 0; i < n; i++) {
            if(strcmp(k[i].ime.c_str(), name.c_str())==0)
                cout << "\nName: " << k[i].ime << "|" << "\nFirst date:" << k[i].ndata << "|" << "\nEnd date:" << k[i].kdata << "|" << "\nName of captain:" << k[i].kapitan << "|" << "\nCount of the trailers:" << k[i].konteiner << "|" << "\nAll funds:" << k[i].sum << endl;
        }
        cout << "\n Do you want a new research:";
        cin >> ch;
        if (ch == 'n')
            choice = false;
    }fp.close();
}
void prodljitelnost(korabi k[], int &n) {
    fstream fp;
    fp.open("prevozi.dat", ios::binary | ios::out);
    fp.read((char*)(&k), n * sizeof(k));

    korabi max = k[0];

    for (int i = 0; i < n; i++) {
        int diffDate_k, diffDate_max;

        if (k[i].ndata > k[i].kdata)
            diffDate_k = k[i].ndata - k[i].kdata;
        else
            diffDate_k = k[i].kdata - k[i].ndata;

        if (max.ndata > max.kdata)
            diffDate_max = max.ndata - max.kdata;
        else
            diffDate_max = max.kdata - max.ndata;

        if (diffDate_k > diffDate_max) {
            max = k[i];
        }
    }

    cout << "\nName: " << max.ime << "|" << "\nFirst date:" << max.ndata << "|" << "\nEnd date:" << max.kdata << "|" << "\nName of captain:" << max.kapitan << "|" << "\nCount of the trailers:" << max.konteiner << "|" << "\nAll funds:" << max.sum << endl;

}