storybook/code/renderers/web-components/template/cli/ts/Header.ts

import { html } from 'lit';

import { Button } from './Button';
import './header.css';

type User = {
  name: string;
};

export interface HeaderProps {
  user?: User;
  onLogin: () => void;
  onLogout: () => void;
  onCreateAccount: () => void;
}

export const Header = ({ user, onLogin, onLogout, onCreateAccount }: HeaderProps) => html`
  <header>
    <div class="wrapper">
      <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>
        ${user
          ? Button({ size: 'small', onClick: onLogout, label: 'Log out' })
          : html`${Button({
              size: 'small',
              onClick: onLogin,
              label: 'Log in',
            })}
            ${Button({
              primary: true,
              size: 'small',
              onClick: onCreateAccount,
              label: 'Sign up',
            })}`}
      </div>
    </div>
  </header>
`;