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// @flow
import React from 'react';
import { Spinner } from '../globals';
import { HasNextPage, NextPageButton } from './style';
import VisibilitySensor from 'react-visibility-sensor';
import { Link, type Location } from 'react-router-dom';
type Props = {
isFetchingMore?: boolean,
href?: Location,
fetchMore: () => any,
children?: string,
automatic?: boolean,
topOffset?: number,
bottomOffset?: number,
};
const NextPageButtonWrapper = (props: Props) => {
const {
isFetchingMore,
fetchMore,
href,
children,
automatic = true,
topOffset = -250,
bottomOffset = -250,
} = props;
const onChange = (isVisible: boolean) => {
if (isFetchingMore || !isVisible) return;
return fetchMore();
};
return (
<HasNextPage
as={href ? Link : 'div'}
to={href}
onClick={evt => {
evt.preventDefault();
onChange(true);
}}
data-cy="load-previous-messages"
>
<VisibilitySensor
active={automatic !== false && !isFetchingMore}
delayedCall
partialVisibility
scrollCheck
intervalDelay={150}
onChange={onChange}
offset={{
top: topOffset,
bottom: bottomOffset,
}}
>
<NextPageButton loading={isFetchingMore}>
{isFetchingMore ? (
<Spinner size={16} color={'brand.default'} />
) : (
children || 'Load more'
)}
</NextPageButton>
</VisibilitySensor>
</HasNextPage>
);
};
export default NextPageButtonWrapper;
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