#include <iostream>
#include <windows.h>
#include <iomanip>
#include <map>
#include <vector>

using namespace std;


string spielfeld[3][3] = {
    {" ", " ", " "},
    {" ", " ", " "},
    {" ", " ", " "}
};

struct userInput {
    bool ok;
    int spalte;
    int zeile;
};

void render() {
    system("cls");

    cout << "  | 1 | 2 | 3 |" << endl;
    cout << "---------------" << endl;
    for (int i = 0; i < 3; i++) {
        cout << i+1 << " | ";
        for (int j = 0; j < 3; j++) {
            cout << spielfeld[i][j] << " | ";
        }
        cout << endl;
        cout << "---------------" << endl;
    }
}

userInput getUserInput() {
    int inputSpalte, inputZeile;
    cout << "Zeile: ";
    cin >> inputZeile;
    cout << "Spalte: ";
    cin >> inputSpalte;
    cout << endl;
    if (spielfeld[inputSpalte-1][inputZeile-1] == " ") {
        return {true, inputSpalte-1, inputZeile-1};
    } else {
        cout << endl << "Input konnte nicht gelesen werden" << endl;
        return getUserInput();
    }
}

void checkforWin() {
    // TODO: check for win or fail and return a game struct.
}

int main() {
    SetConsoleOutputCP(CP_UTF8);
    cout << fixed << setprecision(2);

    int counter = 1;
    while (true) {
        render();
        string current_player = counter++ % 2 == 1 ? "X" : "O";
        cout << endl << "Am Zug ist Spieler: " << current_player << endl;
        if (auto [ok, spalte, zeile] = getUserInput(); ok) {
            spielfeld[zeile][spalte] = current_player;
        }
    }
    return 0;
}