#include <iostream>
#include <vector>
#include <stdlib.h>
#include <stdio.h>
#include "Engine.h"


Engine::Engine(){
	Board* brd = new Board();
	b = brd;
}

void Engine::startGame(){
	cout<<"WELCOME\n";
	
	cout<<"1. Play against AI?\n";
	cout<<"2. Play against a human?\n";
	//cout<<"CHANGE THIS TO PARSE THINGS\n";
	cout<<"Enter choice: \n";

	int choice = -1;
	cin >> choice;
	cout << "OK" << endl;

	string move;

	bool gameOver = false; 
	vector<Board> record;
	b->snapshot(record, *b);

	while (gameOver != true)
	{
		gameOver = b->isGameOver();
		
		while(b->getTurn() == 'O' )
		{
			b->displayBoard();
			cout<<"\nEnter command: ";
			cin>>move;
			b->interpret(move, *b);
		}

		while(b->getTurn() == 'X' )
		{
			AI();
		}
		
		gameOver = b->isGameOver();
		
		b->snapshot(record, *b);
	}

	//for debugging purposes
	cout<<"Record:"<<endl;


	cout<<record.size();
	for (int i = 0; i < record.size(); ++i)
	{
		record[i].displayBoard();
	}
}

void Engine::easyAI()
{
	//1) see all possible movements
	vector<moves> listOfMoves = b->viewPossibleMoves();
	
	//obvious moves
	if (false){
		b->changeTurns();
	}

	//random
	else { 
		srand(time(NULL));
		int randomChoice = rand() % (listOfMoves.size()-1) - 0; // choose a move betwen listOfMoves[0] to last element
		
		//3) execute movement
		int temp = randomChoice;
		b->move(listOfMoves[randomChoice]);
	}
}

void Engine::AI(){
	vector<moves> listOfMoves = b->viewPossibleMoves();
	//
}

void Engine::minMax(){
	//do more things here
}