package laboratoire4.game;

import laboratoire4.IPawn;
import laboratoire4.Player;
import laboratoire4.pawns.Pawn;
import laboratoire4.pawns.PawnMovement;
import laboratoire4.pawns.Pushed;
import laboratoire4.pawns.Pusher;
import laboratoire4.strategies.MasterStrategy;
import laboratoire4.strategies.Strategy;
import laboratoire4.strategies.EvaluationResult;

public class PusherGame implements Game {
    private final Player player;
    private Pawn[][] board;

    public PusherGame(Player player, String[] boardValues) {
        this.player = player;

        newGame(boardValues);
    }

    public void newGame(String[] boardValues) {
        this.board = new Pawn[8][8];

        int col = 0, row = 0;
        for (String boardValue : boardValues) {
            int v = Integer.parseInt(boardValue);
            if (v != 0) {
                Player pawnPlayer = (v == 1 || v == 2) ? Player.RED : Player.BLACK;
                Pawn pawn;
                if (v % 2 == 0) {    // 2 et 4 sont les pushers
                    pawn = new Pusher(pawnPlayer, row, col);
                } else {
                    pawn = new Pushed(pawnPlayer, row, col);
                }

                board[row][col] = pawn;
            }

            col++;
            if (col == board.length) {
                col = 0;
                row++;
            }
        }
    }

    public String runNextMove() {
//        MiniMaxResult result = MiniMax.miniMax(this);
        EvaluationResult result = MasterStrategy.getInstance().getNextMove(this);

        Pawn pawn = board[result.getRow()][result.getCol()];
//        System.out.println(result.getScore());

        String initialPosition = pawn.getPosition();
        move(pawn, result.getMovement());
        String nextPosition = pawn.getPosition();

        return initialPosition + "-" + nextPosition;
    }

    public void move(String move) {
        String[] split = move.trim().split(" - ");
        String from = split[0];
        String to = split[1];

        int fromCol = (int) from.charAt(0) - 65;
        int fromRow = Integer.parseInt(String.valueOf(from.charAt(1))) - 1;
        int toCol = (int) to.charAt(0) - 65;

        PawnMovement movement = PawnMovement.from(toCol - fromCol);
        move(fromRow, fromCol, movement);
    }

    public void move(int row, int col, PawnMovement movement) {
        Pawn pawn = board[row][col];
        if (pawn == null) {
            return;
        }

        move(pawn, movement);
    }

    public void move(IPawn pawn, PawnMovement movement) {
        int toRow = pawn.getRow() + pawn.getDirection();
        int toCol = pawn.getCol() + movement.getMove();

        board[pawn.getRow()][pawn.getCol()] = null;
        board[toRow][toCol] = (Pawn) pawn;
        pawn.move(movement);
    }

    public Player getPlayer() {
        return player;
    }

    public Pawn[][] getBoard() {
        return board;
    }

    public static void printBoard(Pawn[][] board) {
        for (int i = 7; i >= 0; i--) {
            for (int j = 0; j < board.length; j++) {
                if (board[i][j] != null) {
                    System.out.print(board[i][j] + " | ");
                } else {
                    System.out.print("                | ");
                }
            }
            System.out.println();
            System.out.println("----------------------------------------------------------------------------------------");
        }
    }
}