import type { FC, ReactElement, ReactNode, Ref, RefObject } from "react";
import { BackendFactory } from "dnd-core";
export type Square = string;
export declare enum MoveType {
    MOVE = "move",
    EXTEND = "extend"
}
export type Piece = "wP" | "wB" | "wN" | "wR" | "wQ" | "wK" | "bP" | "bB" | "bN" | "bR" | "bQ" | "bK";
export type BoardPosition = {
    [square in Square]?: Piece;
};
export type PromotionPieceOption = "wQ" | "wR" | "wN" | "wB" | "bQ" | "bR" | "bN" | "bB";
export type PromotionStyle = "default" | "vertical" | "modal";
export type CustomSquareProps = {
    children: ReactNode;
    ref: Ref<any>;
    square: Square;
    squareColor: "white" | "black";
    style: Record<string, string | number>;
};
export type CustomSquareRenderer = FC<CustomSquareProps> | keyof JSX.IntrinsicElements;
export type CustomPieceFnArgs = {
    isDragging: boolean;
    squareWidth: number;
    square?: Square;
};
export type CustomPieceFn = (args: CustomPieceFnArgs) => ReactElement;
export type CustomPieces = {
    [key in Piece]?: CustomPieceFn;
};
export type CustomSquareStyles = {
    [key in Square]?: Record<string, string | number>;
};
export type BoardOrientation = "white" | "black";
export type DropOffBoardAction = "snapback" | "trash";
export type Coords = {
    x: number;
    y: number;
};
export type Arrow = [Square, Square, string?];
export type AddUnit = {
    x: number;
    y: number;
};
export type Move = {
    type: MoveType;
    sourceSquare?: Square;
    targetSquare?: Square;
    piece?: Piece;
    expandLocation?: Square;
};
export type ChessboardProps = {
    /**
     * Whether or not the piece can be dragged outside of the board
     * @default true
     * */
    allowDragOutsideBoard?: boolean;
    /**
     * Time in milliseconds for piece to slide to target square. Only used when the position is programmatically changed. If a new position is set before the animation is complete, the board will cancel the current animation and snap to the new position.
     * @default 300
     */
    animationDuration?: number;
    /**
     * Whether or not arrows can be drawn with right click and dragging.
     * @default true
     */
    areArrowsAllowed?: boolean;
    /**
     * Whether or not all pieces are draggable.
     * @default true
     */
    arePiecesDraggable?: boolean;
    /**
     * Whether or not premoves are allowed.
     * @default false
     */
    arePremovesAllowed?: boolean;
    /**
     * Whether or not to automatically promote pawn to queen
     * @default false
     */
    autoPromoteToQueen?: boolean;
    /**
     * The orientation of the board, the chosen colour will be at the bottom of the board.
     * @default white
     */
    boardOrientation?: BoardOrientation;
    /**
     * The width of the board in pixels.
     */
    boardWidth?: number;
    /**
     * If premoves are allowed, whether or not to clear the premove queue on right click.
     * @default true
     */
    clearPremovesOnRightClick?: boolean;
    /**
     * Array where each element is a tuple containing two Square values (representing the 'from' and 'to' squares) and an optional third string element for the arrow color
     * e.g. [ ['a3', 'a5', 'red'], ['b1, 'd5] ].
     * If third element in array is missing arrow will have `customArrowColor` or default color value
     * @default []
     */
    customArrows?: Arrow[];
    /**
     * String with rgb or hex value to colour drawn arrows.
     * @default rgb(255,170,0)
     */
    customArrowColor?: string;
    /**
     * Custom board style object e.g. { borderRadius: '5px', boxShadow: '0 5px 15px rgba(0, 0, 0, 0.5)'}.
     * @default {}
     */
    customBoardStyle?: Record<string, string | number>;
    /**
     * Custom notation style object e.g. { fontSize: '12px' }
     * @default {}
     */
    customNotationStyle?: Record<string, string | number>;
    /**
     * Custom dark square style object.
     * @default { backgroundColor: "#B58863" }
     */
    customDarkSquareStyle?: Record<string, string>;
    /**
     * Custom react-dnd backend to use instead of the one provided by react-chessboard.
     */
    customDndBackend?: BackendFactory;
    /**
     * Options to use for the given custom react-dnd backend. See customDndBackend.
     */
    customDndBackendOptions?: unknown;
    /**
     * Custom drop square style object (Square being hovered over with dragged piece).
     * @default { boxShadow: "inset 0 0 1px 6px rgba(255,255,255,0.75)" }
     */
    customDropSquareStyle?: Record<string, string | number>;
    /**
     * Custom light square style object.
     * @default { backgroundColor: "#F0D9B5" }
     */
    customLightSquareStyle?: Record<string, string>;
    /**
     * Custom pieces object where each key must match a corresponding chess piece (wP, wB, wN, wR, wQ, wK, bP, bB, bN, bR, bQ, bK). The value of each piece is a function that takes in some optional arguments to use and must return JSX to render. e.g. { wK: ({ isDragging: boolean, squareWidth: number }) => jsx }.
     * @default {}
     */
    customPieces?: CustomPieces;
    /**
     * Custom premove dark square style object.
     * @default { backgroundColor: "#A42323" }
     */
    customPremoveDarkSquareStyle?: Record<string, string | number>;
    /**
     * Custom premove light square style object.
     * @default { backgroundColor: "#BD2828" }
     */
    customPremoveLightSquareStyle?: Record<string, string | number>;
    /**
     * Custom square renderer for all squares.
     * @default div
     */
    customSquare?: CustomSquareRenderer;
    /**
     * Custom styles for all squares.
     * @default {}
     */
    customSquareStyles?: CustomSquareStyles;
    /**
     * Action to take when piece is dropped off the board.
     * @default snapback
     */
    dropOffBoardAction?: DropOffBoardAction;
    /**
     * User function that is run when piece is dropped off the board.
     * @default snapback
     */
    onPieceDropOffBoard?: (sourceSquare: Square, piece: Piece) => void;
    /**
     * Board identifier, necessary if more than one board is mounted for drag and drop.
     * @default 0
     */
    id?: string | number;
    /**
     * Function called when a piece drag is attempted. Returns if piece is draggable.
     * @default () => true
     */
    isDraggablePiece?: (args: {
        piece: Piece;
        sourceSquare: Square;
    }) => boolean;
    /**
     * User function that receives current position object when position changes.
     * @default () => {}
     */
    getPositionObject?: (currentPosition: BoardPosition) => any;
    /**
     * User function is run when arrows are set on the board.
     * @default () => {}
     */
    onArrowsChange?: (squares: Arrow[]) => void;
    /**
     * Action to take when chessboard width has been changed
     * @default false
     */
    onBoardWidthChange?: (boardWidth: number) => void;
    /**
     * User function that is run when piece is dragged over a square.
     * @default () => {}
     */
    onDragOverSquare?: (square: Square) => any;
    /**
     * User function that is run when mouse leaves a square.
     * @default () => {}
     */
    onMouseOutSquare?: (square: Square) => any;
    /**
     * User function that is run when mouse is over a square.
     * @default () => {}
     */
    onMouseOverSquare?: (square: Square) => any;
    /**
     * User function that is run when piece is clicked.
     * @default () => {}
     */
    onPieceClick?: (piece: Piece, square: Square) => any;
    /**
     * User function that is run when piece is grabbed to start dragging.
     * @default () => {}
     */
    onPieceDragBegin?: (piece: Piece, sourceSquare: Square) => any;
    /**
     * User function that is run when piece is let go after dragging.
     * @default () => {}
     */
    onPieceDragEnd?: (piece: Piece, sourceSquare: Square) => any;
    /**
     * User function that is run when piece is dropped on a square. Must return whether the move was successful or not.
     * @default () => true
     */
    onPieceDrop?: (sourceSquare: Square, targetSquare: Square, piece: Piece) => boolean;
    /**
     * User function that is run when a move is made. Must return whether the move was successful or not.
     * @default () => true
     */
    onMove?: (move: Move) => boolean;
    /**
     * User function that is run when spare piece is dropped on a square. Must return whether the drop was successful or not.
     * @default () => true
     */
    onSparePieceDrop?: (piece: Piece, targetSquare: Square) => boolean;
    /**
     * User function that is run when piece is dropped. Must return whether the move results in a promotion or not.
     * @default (sourceSquare, targetSquare, piece) => (((piece === "wP" && sourceSquare[1] === "7" && targetSquare[1] === "8") ||
     *                                                  (piece === "bP" && sourceSquare[1] === "2" && targetSquare[1] === "1")) &&
     *                                                  Math.abs(sourceSquare.charCodeAt(0) - targetSquare.charCodeAt(0)) <= 1)
     */
    onPromotionCheck?: (sourceSquare: Square, targetSquare: Square, piece: string) => boolean;
    /**
     * User function that is run when a promotion piece is selected. Must return whether the move was successful or not.
     * @default () => true
     */
    onPromotionPieceSelect?: (piece?: PromotionPieceOption, promoteFromSquare?: Square, promoteToSquare?: Square) => boolean;
    /**
     * User function that is run when a square is clicked.
     * @default () => {}
     */
    onSquareClick?: (square: Square, piece: string | undefined) => any;
    /**
     * User function that is run when a square is right clicked.
     * @default () => {}
     */
    onSquareRightClick?: (square: Square) => any;
    /**
     * FEN string or position object notating where the chess pieces are on the board. Start position can also be notated with the string: 'start'.
     * @default start
     */
    position?: string | BoardPosition;
    /**
   * FEN string that supports modified FEN
   */
    modifiedFen?: string;
    /**
     * Style of promotion dialog.
     * @default default
     */
    promotionDialogVariant?: PromotionStyle;
    /**
     * The square to promote a piece to.
     * @default null
     */
    promotionToSquare?: Square | null;
    /**
     * RefObject that is sent as forwardRef to chessboard.
     */
    ref?: RefObject<HTMLDivElement>;
    /**
     * Whether or not to show the file and rank co-ordinates (a..h, 1..8).
     * @default true
     */
    showBoardNotation?: boolean;
    /**
     * Whether or not to show the promotion dialog.
     * @default false
     */
    showPromotionDialog?: boolean;
    /**
     * Whether or not to center dragged pieces on the mouse cursor.
     * @default true
     */
    snapToCursor?: boolean;
    /**
     * The maximum number of columns the board can be extended to in each horizontal direction.
     * @default 6
     */
    horizontalExtendLimit?: number;
    /**
     * The maximum number of rows the board can be extended to in each vertical direction.
     * @default 2
     */
    verticalExtendLimit?: number;
    /**
     * The add unit for the top and bottom of the chess board
     */
    verticalAddUnit: AddUnit;
    /**
     * The add unit for the left and right of the chess board
     */
    horizontalAddUnit: AddUnit;
};
export type ChessboardDnDProviderProps = {
    children: ReactNode;
    backend?: BackendFactory;
    context?: unknown;
    options?: unknown;
    debugMode?: boolean;
};