declare var socketlib: SocketLib;
export let socket: Socket | null = null;

export function registerSocket(): void {
    socket = socketlib.registerModule("pf2e-table-mode");
    socket.register("tokenMove", tokenMove);
}

async function tokenMove(data: { tokenId: string, direction: string}): Promise<void> {
    const token = canvas.tokens.get(data.tokenId);
    const size = canvas.grid.size;
    const dx = (data.direction === "left" ? -1 : (data.direction === "right" ? 1 : 0));
    const dy = (data.direction === "up" ? -1 : (data.direction === "down" ? 1 : 0));

    await token.document.update({
        x: token.document.x + dx * size,
        y: token.document.y + dy * size
    });
}