import emojiShortName from "emoji-short-name"; import { BlockCommunityResponse, BlockPersonResponse, Comment as CommentI, CommentNode as CommentNodeI, CommentReportView, CommentSortType, CommentView, CommunityModeratorView, CommunityView, GetSiteMetadata, GetSiteResponse, Language, LemmyHttp, LemmyWebsocket, ListingType, PersonSafe, PersonViewSafe, PostReportView, PostView, PrivateMessageReportView, PrivateMessageView, RegistrationApplicationView, Search, SearchType, SortType, UploadImageResponse, } from "lemmy-js-client"; import { default as MarkdownIt } from "markdown-it"; import markdown_it_container from "markdown-it-container"; 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 moment from "moment"; import { Subscription } from "rxjs"; import { delay, retryWhen, take } from "rxjs/operators"; import tippy from "tippy.js"; import Toastify from "toastify-js"; import { httpBase } from "./env"; import { i18n, languages } from "./i18next"; import { DataType, IsoData } from "./interfaces"; import { UserService, WebSocketService } from "./services"; var Tribute: any; if (isBrowser()) { Tribute = require("tributejs"); } export const wsClient = new LemmyWebsocket(); 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/about/guide.html`; // TODO find a way to redirect to the non-en folder export const markdownHelpUrl = `${helpGuideUrl}#using-markdown`; export const sortingHelpUrl = `${helpGuideUrl}#sorting`; 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 relTags = "noopener nofollow"; const DEFAULT_ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; function getRandomCharFromAlphabet(alphabet: string): string { return alphabet.charAt(Math.floor(Math.random() * alphabet.length)); } 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"; } }, }; const markdownItConfig: MarkdownIt.Options = { html: false, linkify: true, typographer: true, }; export const 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); export const 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) .disable("image"); 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 let date: Date = new Date(timeStr + "Z"); // Add Z to convert from UTC date let now: Date = new Date(); let hoursElapsed: number = (now.getTime() - date.getTime()) / 36e5; let rank = (10000 * Math.log10(Math.max(1, 3 + 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?: PersonViewSafe[], 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) { let 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?: PersonViewSafe[], 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?: PersonViewSafe[]): 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 { let 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?: PersonViewSafe[], myUserInfo = UserService.Instance.myUserInfo ): boolean { let 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))/; export function isImage(url: string) { return imageRegex.test(url); } export function isVideo(url: string) { return videoRegex.test(url); } export function validURL(str: string) { return !!new URL(str); } export function communityRSSUrl(actorId: string, sort: string): string { let url = new URL(actorId); return `${url.origin}/feeds${url.pathname}.xml?sort=${sort}`; } export function validEmail(email: string) { let 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 function routeSortTypeToEnum(sort: string): SortType { return SortType[sort]; } export function listingTypeFromNum(type_: number): ListingType { return Object.values(ListingType)[type_]; } export function sortTypeFromNum(type_: number): SortType { return Object.values(SortType)[type_]; } export function routeListingTypeToEnum(type: string): ListingType { return ListingType[type]; } export function routeDataTypeToEnum(type: string): DataType { return DataType[capitalizeFirstLetter(type)]; } export function routeSearchTypeToEnum(type: string): SearchType { return SearchType[type]; } export async function getSiteMetadata(url: string) { let form: GetSiteMetadata = { url }; let client = new LemmyHttp(httpBase); return client.getSiteMetadata(form); } export function debounce(func: any, 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: any; // Calling debounce returns a new anonymous function return function () { // reference the context and args for the setTimeout function var args = arguments; // Should the function be called now? If immediate is true // and not already in a timeout then the answer is: Yes var callNow = immediate && !timeout; // This is the basic debounce behaviour 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); // 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); }; } export function getLanguages( override?: string, myUserInfo = UserService.Instance.myUserInfo ): string[] { let myLang = myUserInfo?.local_user_view.local_user.interface_language; let lang = override || myLang || "browser"; if (lang == "browser" && isBrowser()) { return getBrowserLanguages(); } else { return [lang]; } } function getBrowserLanguages(): string[] { // Intersect lemmy's langs, with the browser langs let langs = languages ? languages.map(l => l.code) : ["en"]; // NOTE, mobile browsers seem to be missing this list, so append en let allowedLangs = navigator.languages .concat("en") .filter(v => langs.includes(v)); return allowedLangs; } 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"; } let themeList = await fetchThemeList(); // Unload all the other themes for (var i = 0; i < themeList.length; i++) { let 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 let 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 = "success") { if (isBrowser()) { let backgroundColor = `var(--${background})`; Toastify({ text: text, backgroundColor: backgroundColor, gravity: "bottom", position: "left", duration: 5000, }).showToast(); } } export function pictrsDeleteToast( clickToDeleteText: string, deletePictureText: string, failedDeletePictureText: string, deleteUrl: string ) { if (isBrowser()) { let backgroundColor = `var(--light)`; let toast = Toastify({ text: clickToDeleteText, backgroundColor: backgroundColor, gravity: "top", position: "right", duration: 10000, onClick: () => { if (toast) { fetch(deleteUrl).then(res => { toast.hideToast(); if (res.ok === true) { alert(deletePictureText); } else { alert(failedDeletePictureText); } }); } }, close: true, }); toast.showToast(); } } interface NotifyInfo { name: string; icon?: string; link: string; body?: string; } export function messageToastify(info: NotifyInfo, router: any) { if (isBrowser()) { let htmlBody = info.body ? md.render(info.body) : ""; let backgroundColor = `var(--light)`; let toast = Toastify({ text: `${htmlBody}
${info.name}`, avatar: info.icon, backgroundColor: backgroundColor, className: "text-dark", close: true, gravity: "top", position: "right", duration: 5000, escapeMarkup: false, onClick: () => { if (toast) { toast.hideToast(); router.history.push(info.link); } }, }); toast.showToast(); } } export function notifyPost(post_view: PostView, router: any) { let info: NotifyInfo = { name: post_view.community.name, icon: post_view.community.icon, link: `/post/${post_view.post.id}`, body: post_view.post.name, }; notify(info, router); } export function notifyComment(comment_view: CommentView, router: any) { let info: NotifyInfo = { name: comment_view.creator.name, icon: comment_view.creator.avatar, link: `/comment/${comment_view.comment.id}`, body: comment_view.comment.content, }; notify(info, router); } export function notifyPrivateMessage(pmv: PrivateMessageView, router: any) { let info: NotifyInfo = { name: pmv.creator.name, icon: pmv.creator.avatar, link: `/inbox`, body: pmv.private_message.content, }; notify(info, router); } function notify(info: NotifyInfo, router: any) { messageToastify(info, router); if (Notification.permission !== "granted") Notification.requestPermission(); else { var notification = new Notification(info.name, { ...{ body: info.body }, ...(info.icon && { icon: info.icon }), }); notification.onclick = (ev: Event): any => { ev.preventDefault(); router.history.push(info.link); }; } } export function setupTribute() { return new Tribute({ noMatchTemplate: function () { return ""; }, collection: [ // Emojis { trigger: ":", menuItemTemplate: (item: any) => { let shortName = `:${item.original.key}:`; return `${item.original.val} ${shortName}`; }, selectTemplate: (item: any) => { return `${item.original.val}`; }, values: Object.entries(emojiShortName).map(e => { return { key: e[1], val: e[0] }; }), allowSpaces: false, autocompleteMode: true, // TODO // menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, // Persons { trigger: "@", selectTemplate: (item: any) => { let 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) => { let 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, }, ], }); } 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: PersonViewSafe; } async function personSearch(text: string): Promise { let users = (await fetchUsers(text)).users; let persons: PersonTribute[] = users.map(pv => { let tribute: PersonTribute = { key: `@${pv.person.name}@${hostname(pv.person.actor_id)}`, view: pv, }; return tribute; }); return persons; } interface CommunityTribute { key: string; view: CommunityView; } async function communitySearch(text: string): Promise { let comms = (await fetchCommunities(text)).communities; let communities: CommunityTribute[] = comms.map(cv => { let tribute: CommunityTribute = { key: `!${cv.community.name}@${hostname(cv.community.actor_id)}`, view: cv, }; return tribute; }); return communities; } export function getListingTypeFromProps( props: any, defaultListingType: ListingType, myUserInfo = UserService.Instance.myUserInfo ): ListingType { let myLt = myUserInfo?.local_user_view.local_user.default_listing_type; return props.match.params.listing_type ? routeListingTypeToEnum(props.match.params.listing_type) : myLt ? Object.values(ListingType)[myLt] : defaultListingType; } export function getListingTypeFromPropsNoDefault(props: any): ListingType { return props.match.params.listing_type ? routeListingTypeToEnum(props.match.params.listing_type) : ListingType.Local; } export function getDataTypeFromProps(props: any): DataType { return props.match.params.data_type ? routeDataTypeToEnum(props.match.params.data_type) : DataType.Post; } export function getSortTypeFromProps( props: any, myUserInfo = UserService.Instance.myUserInfo ): SortType { let mySortType = myUserInfo?.local_user_view.local_user.default_sort_type; return props.match.params.sort ? routeSortTypeToEnum(props.match.params.sort) : mySortType ? Object.values(SortType)[mySortType] : SortType.Active; } export function getPageFromProps(props: any): number { return props.match.params.page ? Number(props.match.params.page) : 1; } 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 { let id = props.match.params.post_id; return id ? Number(id) : undefined; } export function getCommentIdFromProps(props: any): number | undefined { let id = props.match.params.comment_id; return id ? Number(id) : undefined; } export function getUsernameFromProps(props: any): string { return props.match.params.username; } export function editCommentRes(data: CommentView, comments?: CommentView[]) { let found = comments?.find(c => c.comment.id == data.comment.id); if (found) { found.comment.content = data.comment.content; found.comment.distinguished = data.comment.distinguished; found.comment.updated = data.comment.updated; found.comment.removed = data.comment.removed; found.comment.deleted = data.comment.deleted; found.counts.upvotes = data.counts.upvotes; found.counts.downvotes = data.counts.downvotes; found.counts.score = data.counts.score; } } export function saveCommentRes(data: CommentView, comments?: CommentView[]) { let found = comments?.find(c => c.comment.id == data.comment.id); if (found) { found.saved = data.saved; } } export function updatePersonBlock( data: BlockPersonResponse, myUserInfo = UserService.Instance.myUserInfo ) { let mui = myUserInfo; if (mui) { if (data.blocked) { mui.person_blocks.push({ person: mui.local_user_view.person, target: data.person_view.person, }); toast(`${i18n.t("blocked")} ${data.person_view.person.name}`); } else { mui.person_blocks = mui.person_blocks.filter( i => i.target.id != data.person_view.person.id ); toast(`${i18n.t("unblocked")} ${data.person_view.person.name}`); } } } export function updateCommunityBlock( data: BlockCommunityResponse, myUserInfo = UserService.Instance.myUserInfo ) { let mui = myUserInfo; if (mui) { if (data.blocked) { mui.community_blocks.push({ person: mui.local_user_view.person, community: data.community_view.community, }); toast(`${i18n.t("blocked")} ${data.community_view.community.name}`); } else { mui.community_blocks = mui.community_blocks.filter( i => i.community.id != data.community_view.community.id ); toast(`${i18n.t("unblocked")} ${data.community_view.community.name}`); } } } export function createCommentLikeRes( data: CommentView, comments?: CommentView[] ) { let found = comments?.find(c => c.comment.id === data.comment.id); if (found) { found.counts.score = data.counts.score; found.counts.upvotes = data.counts.upvotes; found.counts.downvotes = data.counts.downvotes; if (data.my_vote !== null) { found.my_vote = data.my_vote; } } } export function createPostLikeFindRes(data: PostView, posts?: PostView[]) { let found = posts?.find(p => p.post.id == data.post.id); if (found) { createPostLikeRes(data, found); } } export function createPostLikeRes(data: PostView, post_view?: PostView) { if (post_view) { post_view.counts.score = data.counts.score; post_view.counts.upvotes = data.counts.upvotes; post_view.counts.downvotes = data.counts.downvotes; if (data.my_vote !== null) { post_view.my_vote = data.my_vote; } } } export function editPostFindRes(data: PostView, posts?: PostView[]) { let found = posts?.find(p => p.post.id == data.post.id); if (found) { editPostRes(data, found); } } export function editPostRes(data: PostView, post: PostView) { if (post) { post.post.url = data.post.url; post.post.name = data.post.name; post.post.nsfw = data.post.nsfw; post.post.deleted = data.post.deleted; post.post.removed = data.post.removed; post.post.featured_community = data.post.featured_community; post.post.featured_local = data.post.featured_local; post.post.body = data.post.body; post.post.locked = data.post.locked; post.saved = data.saved; } } // TODO possible to make these generic? export function updatePostReportRes( data: PostReportView, reports?: PostReportView[] ) { let found = reports?.find(p => p.post_report.id == data.post_report.id); if (found) { found.post_report = data.post_report; } } export function updateCommentReportRes( data: CommentReportView, reports?: CommentReportView[] ) { let found = reports?.find(c => c.comment_report.id == data.comment_report.id); if (found) { found.comment_report = data.comment_report; } } export function updatePrivateMessageReportRes( data: PrivateMessageReportView, reports?: PrivateMessageReportView[] ) { let found = reports?.find( c => c.private_message_report.id == data.private_message_report.id ); if (found) { found.private_message_report = data.private_message_report; } } export function updateRegistrationApplicationRes( data: RegistrationApplicationView, applications?: RegistrationApplicationView[] ) { let found = applications?.find( ra => ra.registration_application.id == data.registration_application.id ); if (found) { found.registration_application = data.registration_application; found.admin = data.admin; found.creator_local_user = data.creator_local_user; } } export function commentsToFlatNodes(comments: CommentView[]): CommentNodeI[] { let nodes: CommentNodeI[] = []; for (let comment of comments) { nodes.push({ comment_view: comment, children: [], depth: 0 }); } return nodes; } export function convertCommentSortType(sort: SortType): CommentSortType { if ( sort == SortType.TopAll || sort == SortType.TopDay || sort == SortType.TopWeek || sort == SortType.TopMonth || sort == SortType.TopYear ) { return CommentSortType.Top; } else if (sort == SortType.New) { return CommentSortType.New; } else if (sort == SortType.Hot || sort == SortType.Active) { return CommentSortType.Hot; } else { return CommentSortType.Hot; } } export function buildCommentsTree( comments: CommentView[], parentComment: boolean ): CommentNodeI[] { let map = new Map(); let depthOffset = !parentComment ? 0 : getDepthFromComment(comments[0].comment) ?? 0; for (let comment_view of comments) { let depthI = getDepthFromComment(comment_view.comment) ?? 0; let depth = depthI ? depthI - depthOffset : 0; let node: CommentNodeI = { comment_view, children: [], depth, }; map.set(comment_view.comment.id, { ...node }); } let tree: CommentNodeI[] = []; // if its a parent comment fetch, then push the first comment to the top node. if (parentComment) { let cNode = map.get(comments[0].comment.id); if (cNode) { tree.push(cNode); } } for (let comment_view of comments) { let child = map.get(comment_view.comment.id); if (child) { let parent_id = getCommentParentId(comment_view.comment); if (parent_id) { let 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 { let 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 { let len = comment?.path.split(".").length; return len ? len - 2 : undefined; } export function insertCommentIntoTree( tree: CommentNodeI[], cv: CommentView, parentComment: boolean ) { // Building a fake node to be used for later let node: CommentNodeI = { comment_view: cv, children: [], depth: 0, }; let parentId = getCommentParentId(cv.comment); if (parentId) { let 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 (let node of tree) { if (node.comment_view.comment.id === id) { return node; } for (const child of node.children) { let 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%, 1)`; } export function hostname(url: string): string { let 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()) { let json = window.isoData; let routeData = json.routeData; let site_res = json.site_res; let isoData: IsoData = { path: json.path, site_res, routeData, }; return isoData; } else return context.router.staticContext; } export function wsSubscribe(parseMessage: any): Subscription | undefined { if (isBrowser()) { return WebSocketService.Instance.subject .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10)))) .subscribe( msg => parseMessage(msg), err => console.error(err), () => console.log("complete") ); } else { return undefined; } } 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) { let path: string = context.router.route.location.pathname; let y = window.scrollY; sessionStorage.setItem(`scrollPosition_${path}`, y.toString()); } export function restoreScrollPosition(context: any) { let path: string = context.router.route.location.pathname; let y = Number(sessionStorage.getItem(`scrollPosition_${path}`)); window.scrollTo(0, y); } export function showLocal(isoData: IsoData): boolean { let linked = isoData.site_res.federated_instances?.linked; return linked ? linked.length > 0 : false; } export interface ChoicesValue { value: string; label: string; } export function communityToChoice(cv: CommunityView): ChoicesValue { let choice: ChoicesValue = { value: cv.community.id.toString(), label: communitySelectName(cv), }; return choice; } export function personToChoice(pvs: PersonViewSafe): ChoicesValue { let choice: ChoicesValue = { value: pvs.person.id.toString(), label: personSelectName(pvs), }; return choice; } export async function fetchCommunities(q: string) { let form: Search = { q, type_: SearchType.Communities, sort: SortType.TopAll, listing_type: ListingType.All, page: 1, limit: fetchLimit, auth: myAuth(false), }; let client = new LemmyHttp(httpBase); return client.search(form); } export async function fetchUsers(q: string) { let form: Search = { q, type_: SearchType.Users, sort: SortType.TopAll, listing_type: ListingType.All, page: 1, limit: fetchLimit, auth: myAuth(false), }; let client = new LemmyHttp(httpBase); return client.search(form); } export const choicesConfig = { shouldSort: false, searchResultLimit: fetchLimit, classNames: { containerOuter: "choices custom-select px-0", containerInner: "choices__inner bg-secondary border-0 py-0 modlog-choices-font-size", input: "form-control", inputCloned: "choices__input--cloned", list: "choices__list", listItems: "choices__list--multiple", listSingle: "choices__list--single py-0", listDropdown: "choices__list--dropdown", item: "choices__item bg-secondary", itemSelectable: "choices__item--selectable", itemDisabled: "choices__item--disabled", itemChoice: "choices__item--choice", placeholder: "choices__placeholder", group: "choices__group", groupHeading: "choices__heading", button: "choices__button", activeState: "is-active", focusState: "is-focused", openState: "is-open", disabledState: "is-disabled", highlightedState: "text-info", selectedState: "text-info", flippedState: "is-flipped", loadingState: "is-loading", noResults: "has-no-results", noChoices: "has-no-choices", }, }; export function communitySelectName(cv: CommunityView): string { return cv.community.local ? cv.community.title : `${hostname(cv.community.actor_id)}/${cv.community.title}`; } export function personSelectName(pvs: PersonViewSafe): string { let pName = pvs.person.display_name ?? pvs.person.name; return pvs.person.local ? pName : `${hostname(pvs.person.actor_id)}/${pName}`; } export function initializeSite(site: GetSiteResponse) { UserService.Instance.myUserInfo = site.my_user; i18n.changeLanguage(getLanguages()[0]); } 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: PersonSafe): boolean { let 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 pushNotNull(array: any[], new_item?: any) { if (new_item) { array.push(...new_item); } } export function myAuth(throwErr = true): string | undefined { return UserService.Instance.auth(throwErr); } 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 { if ([SortType.Active, SortType.Hot].includes(sort)) { return CommentSortType.Hot; } else if ([SortType.New, SortType.NewComments].includes(sort)) { return CommentSortType.New; } else if (sort == SortType.Old) { return CommentSortType.Old; } else { return CommentSortType.Top; } } export function myFirstDiscussionLanguageId( allLanguages: Language[], siteLanguages: number[], myUserInfo = UserService.Instance.myUserInfo ): number | undefined { return selectableLanguages( allLanguages, siteLanguages, false, false, myUserInfo ).at(0)?.id; } export function canCreateCommunity( siteRes: GetSiteResponse, myUserInfo = UserService.Instance.myUserInfo ): boolean { let adminOnly = siteRes.site_view.local_site.community_creation_admin_only; return !adminOnly || amAdmin(myUserInfo); } export function isPostBlocked( pv: PostView, myUserInfo = 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 { let nsfw = pv.post.nsfw || pv.community.nsfw; let myShowNsfw = myUserInfo?.local_user_view.local_user.show_nsfw ?? false; return !nsfw || (nsfw && myShowNsfw); } export function getRandomFromList(list?: T[]): T | undefined { return 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[] { let allLangIds = allLanguages.map(l => l.id); let myLangs = myUserInfo?.discussion_languages ?? allLangIds; myLangs = myLangs.length == 0 ? allLangIds : myLangs; let 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)); } } } export function uploadImage(image: File): Promise { const client = new LemmyHttp(httpBase); return client.uploadImage({ image }); }