import { Picker } from "emoji-mart"; import emojiShortName from "emoji-short-name"; import { BlockCommunityResponse, BlockPersonResponse, CommentAggregates, Comment as CommentI, CommentReplyView, CommentReportView, CommentSortType, CommentView, CommunityModeratorView, CommunityView, CustomEmojiView, GetSiteMetadata, GetSiteResponse, Language, LemmyHttp, MyUserInfo, Person, PersonMentionView, PersonView, PostReportView, PostView, PrivateMessageReportView, PrivateMessageView, RegistrationApplicationView, Search, SearchType, SortType, } from "lemmy-js-client"; import { default as MarkdownIt } from "markdown-it"; import markdown_it_container from "markdown-it-container"; import markdown_it_emoji from "markdown-it-emoji/bare"; import markdown_it_footnote from "markdown-it-footnote"; import markdown_it_html5_embed from "markdown-it-html5-embed"; import markdown_it_sub from "markdown-it-sub"; import markdown_it_sup from "markdown-it-sup"; import Renderer from "markdown-it/lib/renderer"; import Token from "markdown-it/lib/token"; import moment from "moment"; import tippy from "tippy.js"; import Toastify from "toastify-js"; import { getHttpBase } from "./env"; import { i18n } from "./i18next"; import { CommentNodeI, DataType, IsoData, VoteType } from "./interfaces"; import { HttpService, UserService } from "./services"; let Tribute: any; if (isBrowser()) { Tribute = require("tributejs"); } export const favIconUrl = "/static/assets/icons/favicon.svg"; export const favIconPngUrl = "/static/assets/icons/apple-touch-icon.png"; // TODO // export const defaultFavIcon = `${window.location.protocol}//${window.location.host}${favIconPngUrl}`; export const repoUrl = "https://github.com/LemmyNet"; export const joinLemmyUrl = "https://join-lemmy.org"; export const donateLemmyUrl = `${joinLemmyUrl}/donate`; export const docsUrl = `${joinLemmyUrl}/docs/en/index.html`; export const helpGuideUrl = `${joinLemmyUrl}/docs/en/users/01-getting-started.html`; // TODO find a way to redirect to the non-en folder export const markdownHelpUrl = `${joinLemmyUrl}/docs/en/users/02-media.html`; export const sortingHelpUrl = `${joinLemmyUrl}/docs/en/users/03-votes-and-ranking.html`; export const archiveTodayUrl = "https://archive.today"; export const ghostArchiveUrl = "https://ghostarchive.org"; export const webArchiveUrl = "https://web.archive.org"; export const elementUrl = "https://element.io"; export const postRefetchSeconds: number = 60 * 1000; export const fetchLimit = 40; export const trendingFetchLimit = 6; export const mentionDropdownFetchLimit = 10; export const commentTreeMaxDepth = 8; export const markdownFieldCharacterLimit = 50000; export const maxUploadImages = 20; export const concurrentImageUpload = 4; export const updateUnreadCountsInterval = 30000; export const relTags = "noopener nofollow"; export const emDash = "\u2014"; export type ThemeColor = | "primary" | "secondary" | "light" | "dark" | "success" | "danger" | "warning" | "info" | "blue" | "indigo" | "purple" | "pink" | "red" | "orange" | "yellow" | "green" | "teal" | "cyan" | "white" | "gray" | "gray-dark"; export interface ErrorPageData { error?: string; adminMatrixIds?: string[]; } const customEmojis: EmojiMartCategory[] = []; export let customEmojisLookup: Map = new Map< string, CustomEmojiView >(); const DEFAULT_ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; function getRandomCharFromAlphabet(alphabet: string): string { return alphabet.charAt(Math.floor(Math.random() * alphabet.length)); } export function getIdFromString(id?: string): number | undefined { return id && id !== "0" && !Number.isNaN(Number(id)) ? Number(id) : undefined; } export function getPageFromString(page?: string): number { return page && !Number.isNaN(Number(page)) ? Number(page) : 1; } export function randomStr( idDesiredLength = 20, alphabet = DEFAULT_ALPHABET ): string { /** * Create n-long array and map it to random chars from given alphabet. * Then join individual chars as string */ return Array.from({ length: idDesiredLength }) .map(() => { return getRandomCharFromAlphabet(alphabet); }) .join(""); } const html5EmbedConfig = { html5embed: { useImageSyntax: true, // Enables video/audio embed with ![]() syntax (default) attributes: { audio: 'controls preload="metadata"', video: 'width="100%" max-height="100%" controls loop preload="metadata"', }, }, }; const spoilerConfig = { validate: (params: string) => { return params.trim().match(/^spoiler\s+(.*)$/); }, render: (tokens: any, idx: any) => { var m = tokens[idx].info.trim().match(/^spoiler\s+(.*)$/); if (tokens[idx].nesting === 1) { // opening tag return `
${md.utils.escapeHtml(m[1])} \n`; } else { // closing tag return "
\n"; } }, }; export let md: MarkdownIt = new MarkdownIt(); export let mdNoImages: MarkdownIt = new MarkdownIt(); export function hotRankComment(comment_view: CommentView): number { return hotRank(comment_view.counts.score, comment_view.comment.published); } export function hotRankActivePost(post_view: PostView): number { return hotRank(post_view.counts.score, post_view.counts.newest_comment_time); } export function hotRankPost(post_view: PostView): number { return hotRank(post_view.counts.score, post_view.post.published); } export function hotRank(score: number, timeStr: string): number { // Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity const date: Date = new Date(timeStr + "Z"); // Add Z to convert from UTC date const now: Date = new Date(); const hoursElapsed: number = (now.getTime() - date.getTime()) / 36e5; const rank = (10000 * Math.log10(Math.max(1, 3 + Number(score)))) / Math.pow(hoursElapsed + 2, 1.8); // console.log(`Comment: ${comment.content}\nRank: ${rank}\nScore: ${comment.score}\nHours: ${hoursElapsed}`); return rank; } export function mdToHtml(text: string) { return { __html: md.render(text) }; } export function mdToHtmlNoImages(text: string) { return { __html: mdNoImages.render(text) }; } export function mdToHtmlInline(text: string) { return { __html: md.renderInline(text) }; } export function getUnixTime(text?: string): number | undefined { return text ? new Date(text).getTime() / 1000 : undefined; } export function futureDaysToUnixTime(days?: number): number | undefined { return days ? Math.trunc( new Date(Date.now() + 1000 * 60 * 60 * 24 * days).getTime() / 1000 ) : undefined; } export function canMod( creator_id: number, mods?: CommunityModeratorView[], admins?: PersonView[], myUserInfo = UserService.Instance.myUserInfo, onSelf = false ): boolean { // You can do moderator actions only on the mods added after you. let adminsThenMods = admins ?.map(a => a.person.id) .concat(mods?.map(m => m.moderator.id) ?? []) ?? []; if (myUserInfo) { const myIndex = adminsThenMods.findIndex( id => id == myUserInfo.local_user_view.person.id ); if (myIndex == -1) { return false; } else { // onSelf +1 on mod actions not for yourself, IE ban, remove, etc adminsThenMods = adminsThenMods.slice(0, myIndex + (onSelf ? 0 : 1)); return !adminsThenMods.includes(creator_id); } } else { return false; } } export function canAdmin( creatorId: number, admins?: PersonView[], myUserInfo = UserService.Instance.myUserInfo, onSelf = false ): boolean { return canMod(creatorId, undefined, admins, myUserInfo, onSelf); } export function isMod( creatorId: number, mods?: CommunityModeratorView[] ): boolean { return mods?.map(m => m.moderator.id).includes(creatorId) ?? false; } export function amMod( mods?: CommunityModeratorView[], myUserInfo = UserService.Instance.myUserInfo ): boolean { return myUserInfo ? isMod(myUserInfo.local_user_view.person.id, mods) : false; } export function isAdmin(creatorId: number, admins?: PersonView[]): boolean { return admins?.map(a => a.person.id).includes(creatorId) ?? false; } export function amAdmin(myUserInfo = UserService.Instance.myUserInfo): boolean { return myUserInfo?.local_user_view.person.admin ?? false; } export function amCommunityCreator( creator_id: number, mods?: CommunityModeratorView[], myUserInfo = UserService.Instance.myUserInfo ): boolean { const myId = myUserInfo?.local_user_view.person.id; // Don't allow mod actions on yourself return myId == mods?.at(0)?.moderator.id && myId != creator_id; } export function amSiteCreator( creator_id: number, admins?: PersonView[], myUserInfo = UserService.Instance.myUserInfo ): boolean { const myId = myUserInfo?.local_user_view.person.id; return myId == admins?.at(0)?.person.id && myId != creator_id; } export function amTopMod( mods: CommunityModeratorView[], myUserInfo = UserService.Instance.myUserInfo ): boolean { return mods.at(0)?.moderator.id == myUserInfo?.local_user_view.person.id; } const imageRegex = /(http)?s?:?(\/\/[^"']*\.(?:jpg|jpeg|gif|png|svg|webp))/; const videoRegex = /(http)?s?:?(\/\/[^"']*\.(?:mp4|webm))/; const tldRegex = /([a-z0-9]+\.)*[a-z0-9]+\.[a-z]+/; export function isImage(url: string) { return imageRegex.test(url); } export function isVideo(url: string) { return videoRegex.test(url); } export function validURL(str: string) { try { new URL(str); return true; } catch (_) { return false; } } export function validInstanceTLD(str: string) { return tldRegex.test(str); } export function communityRSSUrl(actorId: string, sort: string): string { const url = new URL(actorId); return `${url.origin}/feeds${url.pathname}.xml?sort=${sort}`; } export function validEmail(email: string) { const re = /^(([^\s"(),.:;<>@[\\\]]+(\.[^\s"(),.:;<>@[\\\]]+)*)|(".+"))@((\[(?:\d{1,3}\.){3}\d{1,3}])|(([\dA-Za-z\-]+\.)+[A-Za-z]{2,}))$/; return re.test(String(email).toLowerCase()); } export function capitalizeFirstLetter(str: string): string { return str.charAt(0).toUpperCase() + str.slice(1); } export async function getSiteMetadata(url: string) { const form: GetSiteMetadata = { url }; const client = new LemmyHttp(getHttpBase()); return client.getSiteMetadata(form); } export function getDataTypeString(dt: DataType) { return dt === DataType.Post ? "Post" : "Comment"; } export function debounce( func: (...e: T) => R, wait = 1000, immediate = false ) { // 'private' variable for instance // The returned function will be able to reference this due to closure. // Each call to the returned function will share this common timer. let timeout: NodeJS.Timeout | null; // Calling debounce returns a new anonymous function return function () { // reference the context and args for the setTimeout function const args = arguments; // Should the function be called now? If immediate is true // and not already in a timeout then the answer is: Yes const callNow = immediate && !timeout; // This is the basic debounce behavior where you can call this // function several times, but it will only execute once // [before or after imposing a delay]. // Each time the returned function is called, the timer starts over. clearTimeout(timeout ?? undefined); // Set the new timeout timeout = setTimeout(function () { // Inside the timeout function, clear the timeout variable // which will let the next execution run when in 'immediate' mode timeout = null; // Check if the function already ran with the immediate flag if (!immediate) { // Call the original function with apply // apply lets you define the 'this' object as well as the arguments // (both captured before setTimeout) func.apply(this, args); } }, wait); // Immediate mode and no wait timer? Execute the function.. if (callNow) func.apply(this, args); } as (...e: T) => R; } export async function fetchThemeList(): Promise { return fetch("/css/themelist").then(res => res.json()); } export async function setTheme(theme: string, forceReload = false) { if (!isBrowser()) { return; } if (theme === "browser" && !forceReload) { return; } // This is only run on a force reload if (theme == "browser") { theme = "darkly"; } const themeList = await fetchThemeList(); // Unload all the other themes for (var i = 0; i < themeList.length; i++) { const styleSheet = document.getElementById(themeList[i]); if (styleSheet) { styleSheet.setAttribute("disabled", "disabled"); } } document .getElementById("default-light") ?.setAttribute("disabled", "disabled"); document.getElementById("default-dark")?.setAttribute("disabled", "disabled"); // Load the theme dynamically const cssLoc = `/css/themes/${theme}.css`; loadCss(theme, cssLoc); document.getElementById(theme)?.removeAttribute("disabled"); } export function loadCss(id: string, loc: string) { if (!document.getElementById(id)) { var head = document.getElementsByTagName("head")[0]; var link = document.createElement("link"); link.id = id; link.rel = "stylesheet"; link.type = "text/css"; link.href = loc; link.media = "all"; head.appendChild(link); } } export function objectFlip(obj: any) { const ret = {}; Object.keys(obj).forEach(key => { ret[obj[key]] = key; }); return ret; } export function showAvatars( myUserInfo = UserService.Instance.myUserInfo ): boolean { return myUserInfo?.local_user_view.local_user.show_avatars ?? true; } export function showScores( myUserInfo = UserService.Instance.myUserInfo ): boolean { return myUserInfo?.local_user_view.local_user.show_scores ?? true; } export function isCakeDay(published: string): boolean { // moment(undefined) or moment.utc(undefined) returns the current date/time // moment(null) or moment.utc(null) returns null const createDate = moment.utc(published).local(); const currentDate = moment(new Date()); return ( createDate.date() === currentDate.date() && createDate.month() === currentDate.month() && createDate.year() !== currentDate.year() ); } export function toast(text: string, background: ThemeColor = "success") { if (isBrowser()) { const backgroundColor = `var(--${background})`; Toastify({ text: text, backgroundColor: backgroundColor, gravity: "bottom", position: "left", duration: 5000, }).showToast(); } } export function pictrsDeleteToast(filename: string, deleteUrl: string) { if (isBrowser()) { const clickToDeleteText = i18n.t("click_to_delete_picture", { filename }); const deletePictureText = i18n.t("picture_deleted", { filename, }); const failedDeletePictureText = i18n.t("failed_to_delete_picture", { filename, }); const backgroundColor = `var(--light)`; const toast = Toastify({ text: clickToDeleteText, backgroundColor: backgroundColor, gravity: "top", position: "right", duration: 10000, onClick: () => { if (toast) { fetch(deleteUrl).then(res => { toast.hideToast(); if (res.ok === true) { alert(deletePictureText); } else { alert(failedDeletePictureText); } }); } }, close: true, }); toast.showToast(); } } export function setupTribute() { return new Tribute({ noMatchTemplate: function () { return ""; }, collection: [ // Emojis { trigger: ":", menuItemTemplate: (item: any) => { const shortName = `:${item.original.key}:`; return `${item.original.val} ${shortName}`; }, selectTemplate: (item: any) => { const customEmoji = customEmojisLookup.get( item.original.key )?.custom_emoji; if (customEmoji == undefined) return `${item.original.val}`; else return `![${customEmoji.alt_text}](${customEmoji.image_url} "${customEmoji.shortcode}")`; }, values: Object.entries(emojiShortName) .map(e => { return { key: e[1], val: e[0] }; }) .concat( Array.from(customEmojisLookup.entries()).map(k => ({ key: k[0], val: `${k[1].custom_emoji.alt_text}`, })) ), allowSpaces: false, autocompleteMode: true, // TODO // menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, // Persons { trigger: "@", selectTemplate: (item: any) => { const it: PersonTribute = item.original; return `[${it.key}](${it.view.person.actor_id})`; }, values: debounce(async (text: string, cb: any) => { cb(await personSearch(text)); }), allowSpaces: false, autocompleteMode: true, // TODO // menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, // Communities { trigger: "!", selectTemplate: (item: any) => { const it: CommunityTribute = item.original; return `[${it.key}](${it.view.community.actor_id})`; }, values: debounce(async (text: string, cb: any) => { cb(await communitySearch(text)); }), allowSpaces: false, autocompleteMode: true, // TODO // menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, ], }); } function setupEmojiDataModel(custom_emoji_views: CustomEmojiView[]) { const groupedEmojis = groupBy( custom_emoji_views, x => x.custom_emoji.category ); for (const [category, emojis] of Object.entries(groupedEmojis)) { customEmojis.push({ id: category, name: category, emojis: emojis.map(emoji => ({ id: emoji.custom_emoji.shortcode, name: emoji.custom_emoji.shortcode, keywords: emoji.keywords.map(x => x.keyword), skins: [{ src: emoji.custom_emoji.image_url }], })), }); } customEmojisLookup = new Map( custom_emoji_views.map(view => [view.custom_emoji.shortcode, view]) ); } export function updateEmojiDataModel(custom_emoji_view: CustomEmojiView) { const emoji: EmojiMartCustomEmoji = { id: custom_emoji_view.custom_emoji.shortcode, name: custom_emoji_view.custom_emoji.shortcode, keywords: custom_emoji_view.keywords.map(x => x.keyword), skins: [{ src: custom_emoji_view.custom_emoji.image_url }], }; const categoryIndex = customEmojis.findIndex( x => x.id == custom_emoji_view.custom_emoji.category ); if (categoryIndex == -1) { customEmojis.push({ id: custom_emoji_view.custom_emoji.category, name: custom_emoji_view.custom_emoji.category, emojis: [emoji], }); } else { const emojiIndex = customEmojis[categoryIndex].emojis.findIndex( x => x.id == custom_emoji_view.custom_emoji.shortcode ); if (emojiIndex == -1) { customEmojis[categoryIndex].emojis.push(emoji); } else { customEmojis[categoryIndex].emojis[emojiIndex] = emoji; } } customEmojisLookup.set( custom_emoji_view.custom_emoji.shortcode, custom_emoji_view ); } export function removeFromEmojiDataModel(id: number) { let view: CustomEmojiView | undefined; for (const item of customEmojisLookup.values()) { if (item.custom_emoji.id === id) { view = item; break; } } if (!view) return; const categoryIndex = customEmojis.findIndex( x => x.id == view?.custom_emoji.category ); const emojiIndex = customEmojis[categoryIndex].emojis.findIndex( x => x.id == view?.custom_emoji.shortcode ); customEmojis[categoryIndex].emojis = customEmojis[ categoryIndex ].emojis.splice(emojiIndex, 1); customEmojisLookup.delete(view?.custom_emoji.shortcode); } function setupMarkdown() { const markdownItConfig: MarkdownIt.Options = { html: false, linkify: true, typographer: true, }; const emojiDefs = Array.from(customEmojisLookup.entries()).reduce( (main, [key, value]) => ({ ...main, [key]: value }), {} ); md = new MarkdownIt(markdownItConfig) .use(markdown_it_sub) .use(markdown_it_sup) .use(markdown_it_footnote) .use(markdown_it_html5_embed, html5EmbedConfig) .use(markdown_it_container, "spoiler", spoilerConfig) .use(markdown_it_emoji, { defs: emojiDefs, }); mdNoImages = new MarkdownIt(markdownItConfig) .use(markdown_it_sub) .use(markdown_it_sup) .use(markdown_it_footnote) .use(markdown_it_html5_embed, html5EmbedConfig) .use(markdown_it_container, "spoiler", spoilerConfig) .use(markdown_it_emoji, { defs: emojiDefs, }) .disable("image"); const defaultRenderer = md.renderer.rules.image; md.renderer.rules.image = function ( tokens: Token[], idx: number, options: MarkdownIt.Options, env: any, self: Renderer ) { //Provide custom renderer for our emojis to allow us to add a css class and force size dimensions on them. const item = tokens[idx] as any; const title = item.attrs.length >= 3 ? item.attrs[2][1] : ""; const src: string = item.attrs[0][1]; const isCustomEmoji = customEmojisLookup.get(title) != undefined; if (!isCustomEmoji) { return defaultRenderer?.(tokens, idx, options, env, self) ?? ""; } const alt_text = item.content; return `${alt_text}`; }; md.renderer.rules.table_open = function () { return ''; }; } export function getEmojiMart( onEmojiSelect: (e: any) => void, customPickerOptions: any = {} ) { const pickerOptions = { ...customPickerOptions, onEmojiSelect: onEmojiSelect, custom: customEmojis, }; return new Picker(pickerOptions); } var tippyInstance: any; if (isBrowser()) { tippyInstance = tippy("[data-tippy-content]"); } export function setupTippy() { if (isBrowser()) { tippyInstance.forEach((e: any) => e.destroy()); tippyInstance = tippy("[data-tippy-content]", { delay: [500, 0], // Display on "long press" touch: ["hold", 500], }); } } interface PersonTribute { key: string; view: PersonView; } async function personSearch(text: string): Promise { const usersResponse = await fetchUsers(text); return usersResponse.map(pv => ({ key: `@${pv.person.name}@${hostname(pv.person.actor_id)}`, view: pv, })); } interface CommunityTribute { key: string; view: CommunityView; } async function communitySearch(text: string): Promise { const communitiesResponse = await fetchCommunities(text); return communitiesResponse.map(cv => ({ key: `!${cv.community.name}@${hostname(cv.community.actor_id)}`, view: cv, })); } export function getRecipientIdFromProps(props: any): number { return props.match.params.recipient_id ? Number(props.match.params.recipient_id) : 1; } export function getIdFromProps(props: any): number | undefined { const id = props.match.params.post_id; return id ? Number(id) : undefined; } export function getCommentIdFromProps(props: any): number | undefined { const id = props.match.params.comment_id; return id ? Number(id) : undefined; } type ImmutableListKey = | "comment" | "comment_reply" | "person_mention" | "community" | "private_message" | "post" | "post_report" | "comment_report" | "private_message_report" | "registration_application"; function editListImmutable< T extends { [key in F]: { id: number } }, F extends ImmutableListKey >(fieldName: F, data: T, list: T[]): T[] { return [ ...list.map(c => (c[fieldName].id === data[fieldName].id ? data : c)), ]; } export function editComment( data: CommentView, comments: CommentView[] ): CommentView[] { return editListImmutable("comment", data, comments); } export function editCommentReply( data: CommentReplyView, replies: CommentReplyView[] ): CommentReplyView[] { return editListImmutable("comment_reply", data, replies); } interface WithComment { comment: CommentI; counts: CommentAggregates; my_vote?: number; saved: boolean; } export function editMention( data: PersonMentionView, comments: PersonMentionView[] ): PersonMentionView[] { return editListImmutable("person_mention", data, comments); } export function editCommunity( data: CommunityView, communities: CommunityView[] ): CommunityView[] { return editListImmutable("community", data, communities); } export function editPrivateMessage( data: PrivateMessageView, messages: PrivateMessageView[] ): PrivateMessageView[] { return editListImmutable("private_message", data, messages); } export function editPost(data: PostView, posts: PostView[]): PostView[] { return editListImmutable("post", data, posts); } export function editPostReport( data: PostReportView, reports: PostReportView[] ) { return editListImmutable("post_report", data, reports); } export function editCommentReport( data: CommentReportView, reports: CommentReportView[] ): CommentReportView[] { return editListImmutable("comment_report", data, reports); } export function editPrivateMessageReport( data: PrivateMessageReportView, reports: PrivateMessageReportView[] ): PrivateMessageReportView[] { return editListImmutable("private_message_report", data, reports); } export function editRegistrationApplication( data: RegistrationApplicationView, apps: RegistrationApplicationView[] ): RegistrationApplicationView[] { return editListImmutable("registration_application", data, apps); } export function editWith( { comment, counts, saved, my_vote }: D, list: L[] ) { return [ ...list.map(c => c.comment.id === comment.id ? { ...c, comment, counts, saved, my_vote } : c ), ]; } export function updatePersonBlock( data: BlockPersonResponse, myUserInfo: MyUserInfo | undefined = UserService.Instance.myUserInfo ) { if (myUserInfo) { if (data.blocked) { myUserInfo.person_blocks.push({ person: myUserInfo.local_user_view.person, target: data.person_view.person, }); toast(`${i18n.t("blocked")} ${data.person_view.person.name}`); } else { myUserInfo.person_blocks = myUserInfo.person_blocks.filter( i => i.target.id !== data.person_view.person.id ); toast(`${i18n.t("unblocked")} ${data.person_view.person.name}`); } } } export function updateCommunityBlock( data: BlockCommunityResponse, myUserInfo: MyUserInfo | undefined = UserService.Instance.myUserInfo ) { if (myUserInfo) { if (data.blocked) { myUserInfo.community_blocks.push({ person: myUserInfo.local_user_view.person, community: data.community_view.community, }); toast(`${i18n.t("blocked")} ${data.community_view.community.name}`); } else { myUserInfo.community_blocks = myUserInfo.community_blocks.filter( i => i.community.id !== data.community_view.community.id ); toast(`${i18n.t("unblocked")} ${data.community_view.community.name}`); } } } export function commentsToFlatNodes(comments: CommentView[]): CommentNodeI[] { const nodes: CommentNodeI[] = []; for (const comment of comments) { nodes.push({ comment_view: comment, children: [], depth: 0 }); } return nodes; } export function convertCommentSortType(sort: SortType): CommentSortType { if ( sort == "TopAll" || sort == "TopDay" || sort == "TopWeek" || sort == "TopMonth" || sort == "TopYear" ) { return "Top"; } else if (sort == "New") { return "New"; } else if (sort == "Hot" || sort == "Active") { return "Hot"; } else { return "Hot"; } } export function buildCommentsTree( comments: CommentView[], parentComment: boolean ): CommentNodeI[] { const map = new Map(); const depthOffset = !parentComment ? 0 : getDepthFromComment(comments[0].comment) ?? 0; for (const comment_view of comments) { const depthI = getDepthFromComment(comment_view.comment) ?? 0; const depth = depthI ? depthI - depthOffset : 0; const node: CommentNodeI = { comment_view, children: [], depth, }; map.set(comment_view.comment.id, { ...node }); } const tree: CommentNodeI[] = []; // if its a parent comment fetch, then push the first comment to the top node. if (parentComment) { const cNode = map.get(comments[0].comment.id); if (cNode) { tree.push(cNode); } } for (const comment_view of comments) { const child = map.get(comment_view.comment.id); if (child) { const parent_id = getCommentParentId(comment_view.comment); if (parent_id) { const parent = map.get(parent_id); // Necessary because blocked comment might not exist if (parent) { parent.children.push(child); } } else { if (!parentComment) { tree.push(child); } } } } return tree; } export function getCommentParentId(comment?: CommentI): number | undefined { const split = comment?.path.split("."); // remove the 0 split?.shift(); return split && split.length > 1 ? Number(split.at(split.length - 2)) : undefined; } export function getDepthFromComment(comment?: CommentI): number | undefined { const len = comment?.path.split(".").length; return len ? len - 2 : undefined; } // TODO make immutable export function insertCommentIntoTree( tree: CommentNodeI[], cv: CommentView, parentComment: boolean ) { // Building a fake node to be used for later const node: CommentNodeI = { comment_view: cv, children: [], depth: 0, }; const parentId = getCommentParentId(cv.comment); if (parentId) { const parent_comment = searchCommentTree(tree, parentId); if (parent_comment) { node.depth = parent_comment.depth + 1; parent_comment.children.unshift(node); } } else if (!parentComment) { tree.unshift(node); } } export function searchCommentTree( tree: CommentNodeI[], id: number ): CommentNodeI | undefined { for (const node of tree) { if (node.comment_view.comment.id === id) { return node; } for (const child of node.children) { const res = searchCommentTree([child], id); if (res) { return res; } } } return undefined; } export const colorList: string[] = [ hsl(0), hsl(50), hsl(100), hsl(150), hsl(200), hsl(250), hsl(300), ]; function hsl(num: number) { return `hsla(${num}, 35%, 50%, 0.5)`; } export function hostname(url: string): string { const cUrl = new URL(url); return cUrl.port ? `${cUrl.hostname}:${cUrl.port}` : `${cUrl.hostname}`; } export function validTitle(title?: string): boolean { // Initial title is null, minimum length is taken care of by textarea's minLength={3} if (!title || title.length < 3) return true; const regex = new RegExp(/.*\S.*/, "g"); return regex.test(title); } export function siteBannerCss(banner: string): string { return ` \ background-image: linear-gradient( rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8) ) ,url("${banner}"); \ background-attachment: fixed; \ background-position: top; \ background-repeat: no-repeat; \ background-size: 100% cover; \ width: 100%; \ max-height: 100vh; \ `; } export function isBrowser() { return typeof window !== "undefined"; } export function setIsoData(context: any): IsoData { // If its the browser, you need to deserialize the data from the window if (isBrowser()) { return window.isoData; } else return context.router.staticContext; } moment.updateLocale("en", { relativeTime: { future: "in %s", past: "%s ago", s: "<1m", ss: "%ds", m: "1m", mm: "%dm", h: "1h", hh: "%dh", d: "1d", dd: "%dd", w: "1w", ww: "%dw", M: "1M", MM: "%dM", y: "1Y", yy: "%dY", }, }); export function saveScrollPosition(context: any) { const path: string = context.router.route.location.pathname; const y = window.scrollY; sessionStorage.setItem(`scrollPosition_${path}`, y.toString()); } export function restoreScrollPosition(context: any) { const path: string = context.router.route.location.pathname; const y = Number(sessionStorage.getItem(`scrollPosition_${path}`)); window.scrollTo(0, y); } export function showLocal(isoData: IsoData): boolean { return isoData.site_res.site_view.local_site.federation_enabled; } export interface Choice { value: string; label: string; disabled?: boolean; } export function getUpdatedSearchId(id?: number | null, urlId?: number | null) { return id === null ? undefined : ((id ?? urlId) === 0 ? undefined : id ?? urlId)?.toString(); } export function communityToChoice(cv: CommunityView): Choice { return { value: cv.community.id.toString(), label: communitySelectName(cv), }; } export function personToChoice(pvs: PersonView): Choice { return { value: pvs.person.id.toString(), label: personSelectName(pvs), }; } function fetchSearchResults(q: string, type_: SearchType) { const form: Search = { q, type_, sort: "TopAll", listing_type: "All", page: 1, limit: fetchLimit, auth: myAuth(), }; return HttpService.client.search(form); } export async function fetchCommunities(q: string) { const res = await fetchSearchResults(q, "Communities"); return res.state === "success" ? res.data.communities : []; } export async function fetchUsers(q: string) { const res = await fetchSearchResults(q, "Users"); return res.state === "success" ? res.data.users : []; } export function communitySelectName(cv: CommunityView): string { return cv.community.local ? cv.community.title : `${hostname(cv.community.actor_id)}/${cv.community.title}`; } export function personSelectName({ person: { display_name, name, local, actor_id }, }: PersonView): string { const pName = display_name ?? name; return local ? pName : `${hostname(actor_id)}/${pName}`; } export function initializeSite(site?: GetSiteResponse) { UserService.Instance.myUserInfo = site?.my_user; i18n.changeLanguage(); if (site) { setupEmojiDataModel(site.custom_emojis ?? []); } setupMarkdown(); } const SHORTNUM_SI_FORMAT = new Intl.NumberFormat("en-US", { maximumSignificantDigits: 3, //@ts-ignore notation: "compact", compactDisplay: "short", }); export function numToSI(value: number): string { return SHORTNUM_SI_FORMAT.format(value); } export function isBanned(ps: Person): boolean { const expires = ps.ban_expires; // Add Z to convert from UTC date // TODO this check probably isn't necessary anymore if (expires) { if (ps.banned && new Date(expires + "Z") > new Date()) { return true; } else { return false; } } else { return ps.banned; } } export function myAuth(): string | undefined { return UserService.Instance.auth(); } export function myAuthRequired(): string { return UserService.Instance.auth(true) ?? ""; } export function enableDownvotes(siteRes: GetSiteResponse): boolean { return siteRes.site_view.local_site.enable_downvotes; } export function enableNsfw(siteRes: GetSiteResponse): boolean { return siteRes.site_view.local_site.enable_nsfw; } export function postToCommentSortType(sort: SortType): CommentSortType { switch (sort) { case "Active": case "Hot": return "Hot"; case "New": case "NewComments": return "New"; case "Old": return "Old"; default: return "Top"; } } export function canCreateCommunity( siteRes: GetSiteResponse, myUserInfo = UserService.Instance.myUserInfo ): boolean { const adminOnly = siteRes.site_view.local_site.community_creation_admin_only; // TODO: Make this check if user is logged on as well return !adminOnly || amAdmin(myUserInfo); } export function isPostBlocked( pv: PostView, myUserInfo: MyUserInfo | undefined = UserService.Instance.myUserInfo ): boolean { return ( (myUserInfo?.community_blocks .map(c => c.community.id) .includes(pv.community.id) || myUserInfo?.person_blocks .map(p => p.target.id) .includes(pv.creator.id)) ?? false ); } /// Checks to make sure you can view NSFW posts. Returns true if you can. export function nsfwCheck( pv: PostView, myUserInfo = UserService.Instance.myUserInfo ): boolean { const nsfw = pv.post.nsfw || pv.community.nsfw; const myShowNsfw = myUserInfo?.local_user_view.local_user.show_nsfw ?? false; return !nsfw || (nsfw && myShowNsfw); } export function getRandomFromList(list: T[]): T | undefined { return list.length == 0 ? undefined : list.at(Math.floor(Math.random() * list.length)); } /** * This shows what language you can select * * Use showAll for the site form * Use showSite for the profile and community forms * Use false for both those to filter on your profile and site ones */ export function selectableLanguages( allLanguages: Language[], siteLanguages: number[], showAll?: boolean, showSite?: boolean, myUserInfo = UserService.Instance.myUserInfo ): Language[] { const allLangIds = allLanguages.map(l => l.id); let myLangs = myUserInfo?.discussion_languages ?? allLangIds; myLangs = myLangs.length == 0 ? allLangIds : myLangs; const siteLangs = siteLanguages.length == 0 ? allLangIds : siteLanguages; if (showAll) { return allLanguages; } else { if (showSite) { return allLanguages.filter(x => siteLangs.includes(x.id)); } else { return allLanguages .filter(x => siteLangs.includes(x.id)) .filter(x => myLangs.includes(x.id)); } } } interface EmojiMartCategory { id: string; name: string; emojis: EmojiMartCustomEmoji[]; } interface EmojiMartCustomEmoji { id: string; name: string; keywords: string[]; skins: EmojiMartSkin[]; } interface EmojiMartSkin { src: string; } const groupBy = ( array: T[], predicate: (value: T, index: number, array: T[]) => string ) => array.reduce((acc, value, index, array) => { (acc[predicate(value, index, array)] ||= []).push(value); return acc; }, {} as { [key: string]: T[] }); export type QueryParams> = { [key in keyof T]?: string; }; export function getQueryParams>(processors: { [K in keyof T]: (param: string) => T[K]; }): T { if (isBrowser()) { const searchParams = new URLSearchParams(window.location.search); return Array.from(Object.entries(processors)).reduce( (acc, [key, process]) => ({ ...acc, [key]: process(searchParams.get(key)), }), {} as T ); } return {} as T; } export function getQueryString>( obj: T ) { return Object.entries(obj) .filter(([, val]) => val !== undefined && val !== null) .reduce( (acc, [key, val], index) => `${acc}${index > 0 ? "&" : ""}${key}=${val}`, "?" ); } export function isAuthPath(pathname: string) { return /create_.*|inbox|settings|admin|reports|registration_applications/g.test( pathname ); } export function canShare() { return isBrowser() && !!navigator.canShare; } export function share(shareData: ShareData) { if (isBrowser()) { navigator.share(shareData); } } export function newVote(voteType: VoteType, myVote?: number): number { if (voteType == VoteType.Upvote) { return myVote == 1 ? 0 : 1; } else { return myVote == -1 ? 0 : -1; } } function sleep(millis: number): Promise { return new Promise(resolve => setTimeout(resolve, millis)); } /** * Polls / repeatedly runs a promise, every X milliseconds */ export async function poll(promiseFn: any, millis: number) { if (window.document.visibilityState !== "hidden") { await promiseFn(); } await sleep(millis); return poll(promiseFn, millis); }