//nauczyć atakować AI
//uniemożliwienie AI stawianie kółek na krzyżyki

#include <iostream>
#include <cstdlib>
#include <math.h>

using namespace std;

char board[10] = {'0','1','2','3','4','5','6','7','8','9'};
int win = 0;
int c;
int choice;
int turn = 1;

void display_board(){

    cout << "-------------" << endl;

    cout << "|" << " " << board[1] << " " << "|" << " " << board[2] << " " << "|" << " " << board[3] << " " << "|" << endl;
    cout << "|---|---|---|" << endl;

    cout << "|" << " " << board[4] << " " << "|" << " " << board[5] << " " << "|" << " " << board[6] << " " << "|" << endl;
    cout << "|---|---|---|" << endl;

    cout << "|" << " " << board[7] << " " << "|" << " " << board[8] << " " << "|" << " " << board[9] << " " << "|" << endl;

    cout << "-------------" << endl;
}

bool check_winner(){

    for (int i = 1; i <=3; i++){
        if(board[i] == board[i+1] && board[i+1] == board[i+2]) return true;
    }
    for (int i = 1; i <=3; i++){
        if(board[i] == board[i+3] && board[i+3] == board[i+6]) return true;
    }
    if (board[1] == board[5] && board[5] == board[9]) return true;

    else if (board[3] == board[5] && board[5] == board[7]) return true;

    else if (board[1] != '1' && board[2] != '2' && board[3] != '3'
             && board[4] != '4' && board[5] != '5' && board[6] != '6'
             && board[7] != '7' && board[8] != '8' && board[9] != '9')
    {
        cout << "REMIS" << endl;
        return true;
    }

   else return false;
}

void player_move(){

    cout << "Podaj gdzie chcesz wykonac ruch: ";
    cin >> choice;

    c = check_winner();

    if(board[choice] == 'X' || board[choice] == 'O'){
        cout << "te miejsce jest juz zajete!" << endl;
        cout << "Podaj gdzie chcesz wykonac ruch: ";
        cin >> choice;
    }

    else if (choice >0 && choice < 10/*choice == 1 || choice == 2 || choice == 3 || choice == 4 || choice == 5 || choice == 6 || choice == 7 || choice == 8 || choice == 9*/){
        board[choice] = 'X';
        check_winner();
        display_board();
    }
    else{
        cout << "Podales bledne miejsce" << endl;
    }
}

void body(int i){
    board[i] = 'O';
    cout << "AI wybral pole nr: " << i << endl;
    display_board();
}
void horizontal(){
    int i = 0;
    while(i<9){
        string temp_str_h = "";
        temp_str_h = temp_str_h + board[i];
        temp_str_h = temp_str_h + board[i + 1];
        temp_str_h = temp_str_h + board[i + 2];

        if(temp_str_h == "XX3") {
            body(3);
        }
        else if(temp_str_h == "X2X") {
            body(2);
        }
        else if(temp_str_h == "1XX") {
            body(1);
        }
        else if(temp_str_h == "XX6") {
            body(6);
        }
        else if(temp_str_h == "X5X") {
            body(5);
        }
        else if(temp_str_h == "4XX") {
            body(4);
        }
        else if(temp_str_h == "XX9") {
            body(9);
        }
        else if(temp_str_h == "X8X") {
            body(8);
        }
        else if(temp_str_h == "7XX") {
            body(7);
        }
        i++;
    }
}
void vertical(){
    int i=0;
    while(i<9){
        string temp_str_h = "";
        temp_str_h = temp_str_h + board[i];
        temp_str_h = temp_str_h + board[i + 3];
        temp_str_h = temp_str_h + board[i + 6];

        if(temp_str_h == "XX7") {
            body(7);
        }
        else if(temp_str_h == "X4X") {
            body(4);
        }
        else if(temp_str_h == "1XX") {
            body(1);
        }
        else if(temp_str_h == "XX8") {
            body(8);
        }
        else if(temp_str_h == "X5X") {
            body(5);
        }
        else if(temp_str_h == "2XX") {
            body(2);
        }
        else if(temp_str_h == "XX9") {
            body(9);
        }
        else if(temp_str_h == "X6X") {
            body(6);
        }
        else if(temp_str_h == "3XX") {
            body(3);
        }
        i++;
    }
}
void diagonal_rd(){
    string temp_str_h = "";
    temp_str_h = temp_str_h + board[1] + board[5] + board[9];

    if(temp_str_h == "XX9") {
        body(9);
    }
    else if(temp_str_h == "X5X") {
        body(5);
    }
    else if(temp_str_h == "1XX") {
        body(1);
    }
}
void diagonal_ld(){
    string temp_str_h = "";
    temp_str_h = temp_str_h + board[3] + board[5] + board[7];

    if(temp_str_h == "XX7") {
        body(7);
    }
    else if(temp_str_h == "X5X") {
        body(5);
    }
    else if(temp_str_h == "3XX") {
        body(3);
    }
}
void ai_move(){

    vertical();
    horizontal();
    diagonal_rd();
    diagonal_ld();


}

void game(){
    srand( time( NULL ) );

    display_board();

    while(c == false){

        if(check_winner() == true){
            cout << "KONIEC GRY";
            break;
        }
        if(turn % 2 == 0){
            if(turn == 2){
                int ai_choice = (rand() % 9) + 1;

                while(board[ai_choice - 1] == 'O'){
                    if(board[ai_choice - 1] == 'X' || board[ai_choice - 1] == 'O'){
                        ai_choice = (rand() % 9) + 1;

                    }
                }
                board[ai_choice] = 'O';
                cout << "AI wybral pole nr: " << ai_choice << endl;
                display_board();
            }else{
                ai_move();
            }
        }else {
            player_move();
        }
        turn++;
    }

}

int main(){

    game();
    return 0;
}