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import { Component } from 'inferno';
import { Link } from 'inferno-router';
import { Post, SortType } from '../interfaces';
import { postSort } from '../utils';
import { PostListing } from './post-listing';
import { i18n } from '../i18next';
import { T } from 'inferno-i18next';
interface PostListingsProps {
posts: Array<Post>;
showCommunity?: boolean;
removeDuplicates?: boolean;
sort?: SortType;
enableDownvotes: boolean;
enableNsfw: boolean;
}
export class PostListings extends Component<PostListingsProps, any> {
constructor(props: any, context: any) {
super(props, context);
}
render() {
return (
<div>
{this.props.posts.length > 0 ? (
this.outer().map(post => (
<>
<PostListing
post={post}
showCommunity={this.props.showCommunity}
enableDownvotes={this.props.enableDownvotes}
enableNsfw={this.props.enableNsfw}
/>
<hr class="my-3" />
</>
))
) : (
<>
<div>{i18n.t('no_posts')}</div>
{this.props.showCommunity !== undefined && (
<T i18nKey="subscribe_to_communities">
#<Link to="/communities">#</Link>
</T>
)}
</>
)}
</div>
);
}
outer(): Array<Post> {
let out = this.props.posts;
if (this.props.removeDuplicates) {
out = this.removeDuplicates(out);
}
if (this.props.sort !== undefined) {
postSort(out, this.props.sort, this.props.showCommunity == undefined);
}
return out;
}
removeDuplicates(posts: Array<Post>): Array<Post> {
// A map from post url to list of posts (dupes)
let urlMap = new Map<string, Array<Post>>();
// Loop over the posts, find ones with same urls
for (let post of posts) {
if (
post.url &&
!post.deleted &&
!post.removed &&
!post.community_deleted &&
!post.community_removed
) {
if (!urlMap.get(post.url)) {
urlMap.set(post.url, [post]);
} else {
urlMap.get(post.url).push(post);
}
}
}
// Sort by oldest
// Remove the ones that have no length
for (let e of urlMap.entries()) {
if (e[1].length == 1) {
urlMap.delete(e[0]);
} else {
e[1].sort((a, b) => a.published.localeCompare(b.published));
}
}
for (let i = 0; i < posts.length; i++) {
let post = posts[i];
if (post.url) {
let found = urlMap.get(post.url);
if (found) {
// If its the oldest, add
if (post.id == found[0].id) {
post.duplicates = found.slice(1);
}
// Otherwise, delete it
else {
posts.splice(i--, 1);
}
}
}
}
return posts;
}
}