revite/src/components/ui/Overline.tsx

import styled, { css } from 'styled-components';
import { Children } from '../../types/Preact';

interface Props {
    block?: boolean;
    error?: Children;
    children?: Children;
    type?: "default" | "subtle" | "error";
}

const OverlineBase = styled.div<Omit<Props, 'children' | 'error'>>`
    display: inline;
    margin: 0.4em 0;
    margin-top: 0.8em;

    font-size: 14px;
    font-weight: 600;
    color: var(--foreground);
    text-transform: uppercase;

    ${ props => props.type === 'subtle' && css`
        font-size: 12px;
        color: var(--secondary-foreground);
    ` }

    ${ props => props.type === 'error' && css`
        font-size: 12px;
        font-weight: 400;
        color: var(--error);
    ` }

    ${ props => props.block && css`display: block;` }
`;

export default function Overline(props: Props) {
    return (
        <OverlineBase {...props}>
            { props.children }
            { props.children && props.error && <> &middot; </> }
            { props.error && (
                <Overline type="error">
                    { props.error }
                </Overline>
            ) }
        </OverlineBase>
    )
}