#ifndef CHESS_ENGINE_PIECE_HPP
#define CHESS_ENGINE_PIECE_HPP

#include <optional>
#include <iosfwd>

enum class PieceColor {
    White = 0,
    Black = 1,
};

enum class PieceType {
    Pawn = 0b000,
    Knight = 0b010,
    Bishop = 0b100,
    Rook = 0b110,
    Queen = 0b1000,
    King = 0b1010
};

class Piece {

public:

    using Optional = std::optional<Piece>;

    Piece(PieceColor color, PieceType type);

    static Optional fromSymbol(char symbol);

    static std::optional<PieceType> pieceTypeFromSymbol(char symbol);

    PieceColor color() const;
    PieceType type() const;
    int colorVal() const;
    int typeVal() const;

private:
    const PieceColor mColor;
    const PieceType mType;
};

bool operator==(const Piece &lhs, const Piece &rhs);
std::ostream &operator<<(std::ostream &os, const Piece &piece);

// Invert a color (White becomes Black and vice versa)
PieceColor operator!(PieceColor color);

#endif