using System.Diagnostics;
using FourInARow;
using MinMaxAB;

internal class Program
{
    const int depth = 9;
    const bool maxPlayer = false;
    const int alpha = int.MinValue;
    const int beta = int.MaxValue;

    private static void Main()
    {
        var board = new GameBoard(new(7, 6));
        var minmax = new MinMaxABFourInARowBoard();
        while (true)
        {
            AiMove(board, minmax);

            HumanMove(board, minmax);
        }
    }

    private static void AiMove(GameBoard board, MinMaxABFourInARowBoard minmax)
    {
        //Console.WriteLine(board);
        Console.WriteLine("Thinking...");

        var sw = new Stopwatch();
        sw.Start();
        var move = minmax.GetBestMove(board, depth);
        sw.Stop();
        Console.WriteLine($"Decision made in {sw.Elapsed}");

        //Console.Clear();

        board.PlaceCoin(Player.Computer, move);

        Console.WriteLine($"AI Moves {move + 1}");

        //Console.WriteLine(board);

        if (board.GetWinner() == Player.Computer)
        {
            Console.WriteLine("AI Wins");
            Environment.Exit(0);
        }

        if (!board.HasEmptyColumns())
        {
            Console.WriteLine("TIE");
            Environment.Exit(0);
        }
    }

    private static void HumanMove(GameBoard board, MinMaxABFourInARowBoard minmax)
    {
        Console.WriteLine(board);

        Console.Write("Your move: ");
        GC.Collect(2, GCCollectionMode.Aggressive);
        GC.WaitForFullGCComplete();
        board.PlaceCoin(Player.Human, int.Parse(Console.ReadLine()!) - 1);

        Console.Clear();

        if (board.GetWinner() == Player.Human)
        {
            Console.WriteLine("Human Wins");
            Environment.Exit(0);
        }

        if (!board.HasEmptyColumns())
        {
            Console.WriteLine("TIE");
            Environment.Exit(0);
        }
    }
}