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import React from 'react';
import clsx from 'clsx';
import { Container } from 'reactstrap';
import { TimelinePostInfo } from '../data/timeline';
import { useUser } from '../data/user';
import { useAvatarVersion } from '../user/api';
import TimelineItem from './TimelineItem';
export interface TimelinePostInfoEx extends TimelinePostInfo {
deletable: boolean;
}
export type TimelineDeleteCallback = (index: number, id: number) => void;
export interface TimelineProps {
className?: string;
posts: TimelinePostInfoEx[];
onDelete: TimelineDeleteCallback;
}
const Timeline: React.FC<TimelineProps> = (props) => {
const user = useUser();
const avatarVersion = useAvatarVersion();
const { posts, onDelete } = props;
const [indexShowDeleteButton, setIndexShowDeleteButton] = React.useState<
number
>(-1);
const onItemClick = React.useCallback(() => {
setIndexShowDeleteButton(-1);
}, []);
const onToggleDelete = React.useMemo(() => {
return posts.map((post, i) => {
return post.deletable
? () => {
setIndexShowDeleteButton((oldIndexShowDeleteButton) => {
return oldIndexShowDeleteButton !== i ? i : -1;
});
}
: undefined;
});
}, [posts]);
const onItemDelete = React.useMemo(() => {
return posts.map((post, i) => {
return () => {
onDelete(i, post.id);
};
});
}, [posts, onDelete]);
return (
<div className={clsx('pr-2', props.className)}>
<Container fluid className="d-flex flex-column">
{(() => {
const length = posts.length;
return posts.map((post, i) => {
const av: number | undefined =
user != null && user.username === post.author.username
? avatarVersion
: undefined;
const toggleMore = onToggleDelete[i];
return (
<TimelineItem
post={post}
key={post.id}
current={length - 1 === i}
more={
toggleMore
? {
isOpen: indexShowDeleteButton === i,
toggle: toggleMore,
onDelete: onItemDelete[i],
}
: undefined
}
onClick={onItemClick}
avatarVersion={av}
/>
);
});
})()}
</Container>
</div>
);
};
export default Timeline;
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