/* 
 * File:   Piece.hpp
 * Author: amr
 *
 * Created on July 30, 2025, 9:21 PM
 */

#ifndef PIECE_HPP
#define PIECE_HPP
#pragma once

#include <cstdint>
#include <utility>
#include <memory>
#include <vector>
#include "Board.hpp"
class Board;

enum PieceType { PAWN, BISHOP, KNIGHT, ROOK, QUEEN, KING, EMPTY };
enum PieceColour { PIECE_WHITE, PIECE_BLACK, PIECE_EMPTY };
enum Rank { R1 = 0, R2 = 1, R3 = 2, R4 = 3, R5 = 4, R6 = 5, R7 = 6, R8 = 7 };
enum File { A = 0, B = 1, C = 2, D = 3, E = 4, F = 5, G = 6, H = 7 };
struct Square {
  Rank rank;
  File file;
    bool isValid() const {
        return rank >= 0 && rank < 8 && file >= 0 && file < 8;
    }
};
struct Move {
    Square from;
    Square to;
};
class Piece {
protected:
  PieceColour colour;

public:
  // methods
  Piece(PieceColour pColour) : colour(pColour) {}
  virtual ~Piece();
  virtual std::vector<Move> getLegalMoves(const Square &from, const Board &board) const;
  PieceColour getColour() const { return colour; }
};

class King : public Piece {
    King(PieceColour colour) : Piece(colour) {}
    virtual std::vector<Move> getLegalMoves(const Square &from, const Board &board) const override;
};

class Rook : public Piece {
    Rook(PieceColour colour) : Piece(colour) {}
    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
};

class Queen : public Piece {
    Queen(PieceColour colour) : Piece(colour) {}
    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
};

class Knight: public Piece {
    Knight(PieceColour colour) : Piece(colour) {}
    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
};

class Bishop : public Piece {
    Bishop(PieceColour colour) : Piece(colour) {}
    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
};

class Pawn : public Piece {
    Pawn(PieceColour colour) : Piece(colour) {}
    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
};
#endif // PIECE_HPP