import { Component } from "inferno"; import { T } from "inferno-i18next-dess"; import { Link } from "inferno-router"; import { Language, PostView } from "lemmy-js-client"; import { i18n } from "../../i18next"; import { PostListing } from "./post-listing"; interface PostListingsProps { posts: PostView[]; allLanguages: Language[]; siteLanguages: number[]; showCommunity?: boolean; removeDuplicates?: boolean; enableDownvotes?: boolean; enableNsfw?: boolean; } export class PostListings extends Component { duplicatesMap = new Map(); constructor(props: any, context: any) { super(props, context); } get posts() { return this.props.removeDuplicates ? this.removeDuplicates() : this.props.posts; } render() { return (
{this.posts.length > 0 ? ( this.posts.map(post_view => ( <>
)) ) : ( <>
{i18n.t("no_posts")}
{this.props.showCommunity && ( ## )} )}
); } removeDuplicates(): PostView[] { // Must use a spread to clone the props, because splice will fail below otherwise. const posts = [...this.props.posts]; // A map from post url to list of posts (dupes) const urlMap = new Map(); // Loop over the posts, find ones with same urls for (const pv of posts) { const url = pv.post.url; if ( !pv.post.deleted && !pv.post.removed && !pv.community.deleted && !pv.community.removed && url ) { if (!urlMap.get(url)) { urlMap.set(url, [pv]); } else { urlMap.get(url)?.push(pv); } } } // Sort by oldest // Remove the ones that have no length for (const e of urlMap.entries()) { if (e[1].length == 1) { urlMap.delete(e[0]); } else { e[1].sort((a, b) => a.post.published.localeCompare(b.post.published)); } } for (let i = 0; i < posts.length; i++) { const pv = posts[i]; const url = pv.post.url; if (url) { const found = urlMap.get(url); if (found) { // If its the oldest, add if (pv.post.id == found[0].post.id) { this.duplicatesMap.set(pv.post.id, found.slice(1)); } // Otherwise, delete it else { posts.splice(i--, 1); } } } } return posts; } }