starter/src/components/organisms/widgets/TopBar/index.tsx

import * as React from 'react'
import styled from 'styled-components'
import * as T from '@tesseract-design/react-common'

const Base = styled('div')({
	'--width-base': '360px',
	'--height-topbar': '4rem',
	position: 'fixed',
	top: 0,
	left: 0,
	width: '100%',
	height: 'var(--height-topbar, 4rem)',
	backgroundColor: 'var(--color-bg, white)',
	zIndex: 1,
	'@media (prefers-color-scheme: dark)': {
		backgroundColor: 'var(--color-bg, black)',
	},
	'~ *': {
		paddingTop: 'var(--height-topbar, 4rem)',
	},
})

const Container = styled('div')({
	padding: '0 1rem',
	boxSizing: 'border-box',
	margin: '0 auto',
	maxWidth: 'calc(var(--width-base, 360px) * 2)',
	width: '100%',
	height: '100%',
	display: 'flex',
	alignItems: 'center',
})

const BrandContainer = styled('div')({
	width: '6rem',
	'@media (min-width: 720px)': {
		width: '8rem',
	},
})

const SearchContainer = styled('form')({
	flex: 'auto',
	padding: '0 1rem',
	boxSizing: 'border-box',
})

const UserContainer = styled('div')({
	textAlign: 'right',
	'@media (min-width: 720px)': {
		minWidth: '8rem',
	},
})

type Props = {
	query?: string,
	onSearch?: React.FormEventHandler,
	searchLabel?: string,
	searchName?: string,
	searchHint?: string,
}

const TopBar: React.FC<Props> = ({
	query,
	onSearch,
	searchLabel = 'Search',
	searchName = 'q',
	searchHint = 'e.g. keywords, names…',
}) => {
	return (
		<Base>
			<Container>
				<BrandContainer>
					Brand
				</BrandContainer>
				<SearchContainer
					onSubmit={onSearch}
				>
					<T.TextInput
						name={searchName}
						label={searchLabel}
						hint={searchHint}
						defaultValue={query}
						border
						alternate
					/>
				</SearchContainer>
				<UserContainer>
					User
				</UserContainer>
			</Container>
		</Base>
	)
}

export default TopBar