// Eryn Wells <eryn@erynwells.me>

use crate::Move;
use chessfriend_board::{board::HalfMoveClock, Board, CastleRights};
use chessfriend_core::{Color, Piece, Square};

/// A record of a move made on a board. This struct contains all the information
/// necessary to restore the board position to its state immediately before the
/// move was made.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct MoveRecord {
    /// The color of the player who made the move
    pub color: Color,

    /// The move played
    pub ply: Move,

    /// The en passant square when the move was made
    pub en_passant_target: Option<Square>,

    /// Castling rights for all players when the move was made
    pub castling_rights: CastleRights,

    /// The half move clock when the move was made
    pub half_move_clock: HalfMoveClock,

    /// The piece captured by the move, if any
    pub captured_piece: Option<Piece>,
}

impl MoveRecord {
    #[must_use]
    pub fn new(board: &Board, ply: Move, capture: Option<Piece>) -> Self {
        Self {
            color: board.active_color(),
            ply,
            en_passant_target: board.en_passant_target(),
            castling_rights: board.castling_rights(),
            half_move_clock: board.half_move_clock,
            captured_piece: capture,
        }
    }
}