| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556 | import React from 'react';import { Button } from './Button';import './header.css';type User = {  name: string;};interface HeaderProps {  user?: User;  onLogin: () => void;  onLogout: () => void;  onCreateAccount: () => void;}export const Header = ({ user, onLogin, onLogout, onCreateAccount }: HeaderProps) => (  <header>    <div className="storybook-header">      <div>        <svg width="32" height="32" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg">          <g fill="none" fillRule="evenodd">            <path              d="M10 0h12a10 10 0 0110 10v12a10 10 0 01-10 10H10A10 10 0 010 22V10A10 10 0 0110 0z"              fill="#FFF"            />            <path              d="M5.3 10.6l10.4 6v11.1l-10.4-6v-11zm11.4-6.2l9.7 5.5-9.7 5.6V4.4z"              fill="#555AB9"            />            <path              d="M27.2 10.6v11.2l-10.5 6V16.5l10.5-6zM15.7 4.4v11L6 10l9.7-5.5z"              fill="#91BAF8"            />          </g>        </svg>        <h1>Acme</h1>      </div>      <div>        {user ? (          <>            <span className="welcome">              Welcome, <b>{user.name}</b>!            </span>            <Button size="small" onClick={onLogout} label="Log out" />          </>        ) : (          <>            <Button size="small" onClick={onLogin} label="Log in" />            <Button primary size="small" onClick={onCreateAccount} label="Sign up" />          </>        )}      </div>    </div>  </header>);
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