1 import { Err, None, Ok, Option, Result, Some } from "@sniptt/monads";
2 import { ClassConstructor, deserialize, serialize } from "class-transformer";
3 import emojiShortName from "emoji-short-name";
5 BlockCommunityResponse,
8 CommentNode as CommentNodeI,
13 CommunityModeratorView,
26 PrivateMessageReportView,
28 RegistrationApplicationView,
32 } from "lemmy-js-client";
33 import markdown_it from "markdown-it";
34 import markdown_it_container from "markdown-it-container";
35 import markdown_it_footnote from "markdown-it-footnote";
36 import markdown_it_html5_embed from "markdown-it-html5-embed";
37 import markdown_it_sub from "markdown-it-sub";
38 import markdown_it_sup from "markdown-it-sup";
39 import moment from "moment";
40 import { Subscription } from "rxjs";
41 import { delay, retryWhen, take } from "rxjs/operators";
42 import tippy from "tippy.js";
43 import Toastify from "toastify-js";
44 import { httpBase } from "./env";
45 import { i18n, languages } from "./i18next";
46 import { DataType, IsoData } from "./interfaces";
47 import { UserService, WebSocketService } from "./services";
51 Tribute = require("tributejs");
54 export const wsClient = new LemmyWebsocket();
56 export const favIconUrl = "/static/assets/icons/favicon.svg";
57 export const favIconPngUrl = "/static/assets/icons/apple-touch-icon.png";
59 // export const defaultFavIcon = `${window.location.protocol}//${window.location.host}${favIconPngUrl}`;
60 export const repoUrl = "https://github.com/LemmyNet";
61 export const joinLemmyUrl = "https://join-lemmy.org";
62 export const donateLemmyUrl = `${joinLemmyUrl}/donate`;
63 export const docsUrl = `${joinLemmyUrl}/docs/en/index.html`;
64 export const helpGuideUrl = `${joinLemmyUrl}/docs/en/about/guide.html`; // TODO find a way to redirect to the non-en folder
65 export const markdownHelpUrl = `${helpGuideUrl}#using-markdown`;
66 export const sortingHelpUrl = `${helpGuideUrl}#sorting`;
67 export const archiveTodayUrl = "https://archive.today";
68 export const ghostArchiveUrl = "https://ghostarchive.org";
69 export const webArchiveUrl = "https://web.archive.org";
70 export const elementUrl = "https://element.io";
72 export const postRefetchSeconds: number = 60 * 1000;
73 export const fetchLimit = 40;
74 export const trendingFetchLimit = 6;
75 export const mentionDropdownFetchLimit = 10;
76 export const commentTreeMaxDepth = 8;
78 export const relTags = "noopener nofollow";
80 const DEFAULT_ALPHABET =
81 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
83 function getRandomCharFromAlphabet(alphabet: string): string {
84 return alphabet.charAt(Math.floor(Math.random() * alphabet.length));
87 export function randomStr(
89 alphabet = DEFAULT_ALPHABET
92 * Create n-long array and map it to random chars from given alphabet.
93 * Then join individual chars as string
95 return Array.from({ length: idDesiredLength })
97 return getRandomCharFromAlphabet(alphabet);
102 export const md = new markdown_it({
107 .use(markdown_it_sub)
108 .use(markdown_it_sup)
109 .use(markdown_it_footnote)
110 .use(markdown_it_html5_embed, {
112 useImageSyntax: true, // Enables video/audio embed with ![]() syntax (default)
114 audio: 'controls preload="metadata"',
116 'width="100%" max-height="100%" controls loop preload="metadata"',
120 .use(markdown_it_container, "spoiler", {
121 validate: function (params: any) {
122 return params.trim().match(/^spoiler\s+(.*)$/);
125 render: function (tokens: any, idx: any) {
126 var m = tokens[idx].info.trim().match(/^spoiler\s+(.*)$/);
128 if (tokens[idx].nesting === 1) {
130 return `<details><summary> ${md.utils.escapeHtml(m[1])} </summary>\n`;
133 return "</details>\n";
138 export function hotRankComment(comment_view: CommentView): number {
139 return hotRank(comment_view.counts.score, comment_view.comment.published);
142 export function hotRankActivePost(post_view: PostView): number {
143 return hotRank(post_view.counts.score, post_view.counts.newest_comment_time);
146 export function hotRankPost(post_view: PostView): number {
147 return hotRank(post_view.counts.score, post_view.post.published);
150 export function hotRank(score: number, timeStr: string): number {
151 // Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity
152 let date: Date = new Date(timeStr + "Z"); // Add Z to convert from UTC date
153 let now: Date = new Date();
154 let hoursElapsed: number = (now.getTime() - date.getTime()) / 36e5;
157 (10000 * Math.log10(Math.max(1, 3 + score))) /
158 Math.pow(hoursElapsed + 2, 1.8);
160 // console.log(`Comment: ${comment.content}\nRank: ${rank}\nScore: ${comment.score}\nHours: ${hoursElapsed}`);
165 export function mdToHtml(text: string) {
166 return { __html: md.render(text) };
169 export function getUnixTime(text: string): number {
170 return text ? new Date(text).getTime() / 1000 : undefined;
173 export function futureDaysToUnixTime(days: number): number {
176 new Date(Date.now() + 1000 * 60 * 60 * 24 * days).getTime() / 1000
181 export function canMod(
182 mods: Option<CommunityModeratorView[]>,
183 admins: Option<PersonViewSafe[]>,
185 myUserInfo = UserService.Instance.myUserInfo,
188 // You can do moderator actions only on the mods added after you.
189 let adminsThenMods = admins
191 .map(a => a.person.id)
192 .concat(mods.unwrapOr([]).map(m => m.moderator.id));
194 return myUserInfo.match({
196 let myIndex = adminsThenMods.findIndex(
197 id => id == me.local_user_view.person.id
202 // onSelf +1 on mod actions not for yourself, IE ban, remove, etc
203 adminsThenMods = adminsThenMods.slice(0, myIndex + (onSelf ? 0 : 1));
204 return !adminsThenMods.includes(creator_id);
211 export function canAdmin(
212 admins: Option<PersonViewSafe[]>,
214 myUserInfo = UserService.Instance.myUserInfo,
217 return canMod(None, admins, creator_id, myUserInfo, onSelf);
220 export function isMod(
221 mods: Option<CommunityModeratorView[]>,
225 some: mods => mods.map(m => m.moderator.id).includes(creator_id),
230 export function amMod(
231 mods: Option<CommunityModeratorView[]>,
232 myUserInfo = UserService.Instance.myUserInfo
234 return myUserInfo.match({
235 some: mui => isMod(mods, mui.local_user_view.person.id),
240 export function isAdmin(
241 admins: Option<PersonViewSafe[]>,
244 return admins.match({
245 some: admins => admins.map(a => a.person.id).includes(creator_id),
250 export function amAdmin(myUserInfo = UserService.Instance.myUserInfo): boolean {
252 .map(mui => mui.local_user_view.person.admin)
256 export function amCommunityCreator(
257 mods: Option<CommunityModeratorView[]>,
259 myUserInfo = UserService.Instance.myUserInfo
264 .map(mui => mui.local_user_view.person.id)
267 myId == mods[0].moderator.id &&
268 // Don't allow mod actions on yourself
276 export function amSiteCreator(
277 admins: Option<PersonViewSafe[]>,
279 myUserInfo = UserService.Instance.myUserInfo
281 return admins.match({
284 .map(mui => mui.local_user_view.person.id)
287 myId == admins[0].person.id &&
288 // Don't allow mod actions on yourself
296 export function amTopMod(
297 mods: Option<CommunityModeratorView[]>,
298 myUserInfo = UserService.Instance.myUserInfo
303 some: mui => mods[0].moderator.id == mui.local_user_view.person.id,
310 const imageRegex = /(http)?s?:?(\/\/[^"']*\.(?:jpg|jpeg|gif|png|svg|webp))/;
311 const videoRegex = /(http)?s?:?(\/\/[^"']*\.(?:mp4|webm))/;
313 export function isImage(url: string) {
314 return imageRegex.test(url);
317 export function isVideo(url: string) {
318 return videoRegex.test(url);
321 export function validURL(str: string) {
322 return !!new URL(str);
325 export function communityRSSUrl(actorId: string, sort: string): string {
326 let url = new URL(actorId);
327 return `${url.origin}/feeds${url.pathname}.xml?sort=${sort}`;
330 export function validEmail(email: string) {
332 /^(([^\s"(),.:;<>@[\\\]]+(\.[^\s"(),.:;<>@[\\\]]+)*)|(".+"))@((\[(?:\d{1,3}\.){3}\d{1,3}])|(([\dA-Za-z\-]+\.)+[A-Za-z]{2,}))$/;
333 return re.test(String(email).toLowerCase());
336 export function capitalizeFirstLetter(str: string): string {
337 return str.charAt(0).toUpperCase() + str.slice(1);
340 export function routeSortTypeToEnum(sort: string): SortType {
341 return SortType[sort];
344 export function listingTypeFromNum(type_: number): ListingType {
345 return Object.values(ListingType)[type_];
348 export function sortTypeFromNum(type_: number): SortType {
349 return Object.values(SortType)[type_];
352 export function routeListingTypeToEnum(type: string): ListingType {
353 return ListingType[type];
356 export function routeDataTypeToEnum(type: string): DataType {
357 return DataType[capitalizeFirstLetter(type)];
360 export function routeSearchTypeToEnum(type: string): SearchType {
361 return SearchType[type];
364 export async function getSiteMetadata(url: string) {
365 let form = new GetSiteMetadata({
368 let client = new LemmyHttp(httpBase);
369 return client.getSiteMetadata(form);
372 export function debounce(func: any, wait = 1000, immediate = false) {
373 // 'private' variable for instance
374 // The returned function will be able to reference this due to closure.
375 // Each call to the returned function will share this common timer.
378 // Calling debounce returns a new anonymous function
380 // reference the context and args for the setTimeout function
381 var args = arguments;
383 // Should the function be called now? If immediate is true
384 // and not already in a timeout then the answer is: Yes
385 var callNow = immediate && !timeout;
387 // This is the basic debounce behaviour where you can call this
388 // function several times, but it will only execute once
389 // [before or after imposing a delay].
390 // Each time the returned function is called, the timer starts over.
391 clearTimeout(timeout);
393 // Set the new timeout
394 timeout = setTimeout(function () {
395 // Inside the timeout function, clear the timeout variable
396 // which will let the next execution run when in 'immediate' mode
399 // Check if the function already ran with the immediate flag
401 // Call the original function with apply
402 // apply lets you define the 'this' object as well as the arguments
403 // (both captured before setTimeout)
404 func.apply(this, args);
408 // Immediate mode and no wait timer? Execute the function..
409 if (callNow) func.apply(this, args);
413 export function getLanguages(
415 myUserInfo = UserService.Instance.myUserInfo
417 let myLang = myUserInfo
418 .map(m => m.local_user_view.local_user.interface_language)
419 .unwrapOr("browser");
420 let lang = override || myLang;
422 if (lang == "browser" && isBrowser()) {
423 return getBrowserLanguages();
429 function getBrowserLanguages(): string[] {
430 // Intersect lemmy's langs, with the browser langs
431 let langs = languages ? languages.map(l => l.code) : ["en"];
433 // NOTE, mobile browsers seem to be missing this list, so append en
434 let allowedLangs = navigator.languages
436 .filter(v => langs.includes(v));
440 export async function fetchThemeList(): Promise<string[]> {
441 return fetch("/css/themelist").then(res => res.json());
444 export async function setTheme(theme: string, forceReload = false) {
448 if (theme === "browser" && !forceReload) {
451 // This is only run on a force reload
452 if (theme == "browser") {
456 let themeList = await fetchThemeList();
458 // Unload all the other themes
459 for (var i = 0; i < themeList.length; i++) {
460 let styleSheet = document.getElementById(themeList[i]);
462 styleSheet.setAttribute("disabled", "disabled");
467 .getElementById("default-light")
468 ?.setAttribute("disabled", "disabled");
469 document.getElementById("default-dark")?.setAttribute("disabled", "disabled");
471 // Load the theme dynamically
472 let cssLoc = `/css/themes/${theme}.css`;
474 loadCss(theme, cssLoc);
475 document.getElementById(theme).removeAttribute("disabled");
478 export function loadCss(id: string, loc: string) {
479 if (!document.getElementById(id)) {
480 var head = document.getElementsByTagName("head")[0];
481 var link = document.createElement("link");
483 link.rel = "stylesheet";
484 link.type = "text/css";
487 head.appendChild(link);
491 export function objectFlip(obj: any) {
493 Object.keys(obj).forEach(key => {
499 export function showAvatars(
500 myUserInfo: Option<MyUserInfo> = UserService.Instance.myUserInfo
503 .map(m => m.local_user_view.local_user.show_avatars)
507 export function showScores(
508 myUserInfo: Option<MyUserInfo> = UserService.Instance.myUserInfo
511 .map(m => m.local_user_view.local_user.show_scores)
515 export function isCakeDay(published: string): boolean {
516 // moment(undefined) or moment.utc(undefined) returns the current date/time
517 // moment(null) or moment.utc(null) returns null
518 const createDate = moment.utc(published).local();
519 const currentDate = moment(new Date());
522 createDate.date() === currentDate.date() &&
523 createDate.month() === currentDate.month() &&
524 createDate.year() !== currentDate.year()
528 export function toast(text: string, background = "success") {
530 let backgroundColor = `var(--${background})`;
533 backgroundColor: backgroundColor,
540 export function pictrsDeleteToast(
541 clickToDeleteText: string,
542 deletePictureText: string,
546 let backgroundColor = `var(--light)`;
547 let toast = Toastify({
548 text: clickToDeleteText,
549 backgroundColor: backgroundColor,
555 window.location.replace(deleteUrl);
556 alert(deletePictureText);
565 interface NotifyInfo {
567 icon: Option<string>;
572 export function messageToastify(info: NotifyInfo, router: any) {
574 let htmlBody = info.body ? md.render(info.body) : "";
575 let backgroundColor = `var(--light)`;
577 let toast = Toastify({
578 text: `${htmlBody}<br />${info.name}`,
580 backgroundColor: backgroundColor,
581 className: "text-dark",
590 router.history.push(info.link);
597 export function notifyPost(post_view: PostView, router: any) {
598 let info: NotifyInfo = {
599 name: post_view.community.name,
600 icon: post_view.community.icon,
601 link: `/post/${post_view.post.id}`,
602 body: post_view.post.name,
604 notify(info, router);
607 export function notifyComment(comment_view: CommentView, router: any) {
608 let info: NotifyInfo = {
609 name: comment_view.creator.name,
610 icon: comment_view.creator.avatar,
611 link: `/comment/${comment_view.comment.id}`,
612 body: comment_view.comment.content,
614 notify(info, router);
617 export function notifyPrivateMessage(pmv: PrivateMessageView, router: any) {
618 let info: NotifyInfo = {
619 name: pmv.creator.name,
620 icon: pmv.creator.avatar,
622 body: pmv.private_message.content,
624 notify(info, router);
627 function notify(info: NotifyInfo, router: any) {
628 messageToastify(info, router);
630 if (Notification.permission !== "granted") Notification.requestPermission();
632 var notification = new Notification(info.name, {
633 ...{ body: info.body },
634 ...(info.icon.isSome() && { icon: info.icon.unwrap() }),
637 notification.onclick = (ev: Event): any => {
639 router.history.push(info.link);
644 export function setupTribute() {
646 noMatchTemplate: function () {
653 menuItemTemplate: (item: any) => {
654 let shortName = `:${item.original.key}:`;
655 return `${item.original.val} ${shortName}`;
657 selectTemplate: (item: any) => {
658 return `${item.original.val}`;
660 values: Object.entries(emojiShortName).map(e => {
661 return { key: e[1], val: e[0] };
664 autocompleteMode: true,
666 // menuItemLimit: mentionDropdownFetchLimit,
667 menuShowMinLength: 2,
672 selectTemplate: (item: any) => {
673 let it: PersonTribute = item.original;
674 return `[${it.key}](${it.view.person.actor_id})`;
676 values: debounce(async (text: string, cb: any) => {
677 cb(await personSearch(text));
680 autocompleteMode: true,
682 // menuItemLimit: mentionDropdownFetchLimit,
683 menuShowMinLength: 2,
689 selectTemplate: (item: any) => {
690 let it: CommunityTribute = item.original;
691 return `[${it.key}](${it.view.community.actor_id})`;
693 values: debounce(async (text: string, cb: any) => {
694 cb(await communitySearch(text));
697 autocompleteMode: true,
699 // menuItemLimit: mentionDropdownFetchLimit,
700 menuShowMinLength: 2,
706 var tippyInstance: any;
708 tippyInstance = tippy("[data-tippy-content]");
711 export function setupTippy() {
713 tippyInstance.forEach((e: any) => e.destroy());
714 tippyInstance = tippy("[data-tippy-content]", {
716 // Display on "long press"
717 touch: ["hold", 500],
722 interface PersonTribute {
724 view: PersonViewSafe;
727 async function personSearch(text: string): Promise<PersonTribute[]> {
728 let users = (await fetchUsers(text)).users;
729 let persons: PersonTribute[] = users.map(pv => {
730 let tribute: PersonTribute = {
731 key: `@${pv.person.name}@${hostname(pv.person.actor_id)}`,
739 interface CommunityTribute {
744 async function communitySearch(text: string): Promise<CommunityTribute[]> {
745 let comms = (await fetchCommunities(text)).communities;
746 let communities: CommunityTribute[] = comms.map(cv => {
747 let tribute: CommunityTribute = {
748 key: `!${cv.community.name}@${hostname(cv.community.actor_id)}`,
756 export function getListingTypeFromProps(
758 defaultListingType: ListingType,
759 myUserInfo = UserService.Instance.myUserInfo
761 return props.match.params.listing_type
762 ? routeListingTypeToEnum(props.match.params.listing_type)
765 Object.values(ListingType)[
766 me.local_user_view.local_user.default_listing_type
768 none: defaultListingType,
772 export function getListingTypeFromPropsNoDefault(props: any): ListingType {
773 return props.match.params.listing_type
774 ? routeListingTypeToEnum(props.match.params.listing_type)
778 // TODO might need to add a user setting for this too
779 export function getDataTypeFromProps(props: any): DataType {
780 return props.match.params.data_type
781 ? routeDataTypeToEnum(props.match.params.data_type)
785 export function getSortTypeFromProps(
787 myUserInfo = UserService.Instance.myUserInfo
789 return props.match.params.sort
790 ? routeSortTypeToEnum(props.match.params.sort)
793 Object.values(SortType)[
794 mui.local_user_view.local_user.default_sort_type
796 none: SortType.Active,
800 export function getPageFromProps(props: any): number {
801 return props.match.params.page ? Number(props.match.params.page) : 1;
804 export function getRecipientIdFromProps(props: any): number {
805 return props.match.params.recipient_id
806 ? Number(props.match.params.recipient_id)
810 export function getIdFromProps(props: any): Option<number> {
811 let id: string = props.match.params.post_id;
812 return id ? Some(Number(id)) : None;
815 export function getCommentIdFromProps(props: any): Option<number> {
816 let id: string = props.match.params.comment_id;
817 return id ? Some(Number(id)) : None;
820 export function getUsernameFromProps(props: any): string {
821 return props.match.params.username;
824 export function editCommentRes(data: CommentView, comments: CommentView[]) {
825 let found = comments.find(c => c.comment.id == data.comment.id);
827 found.comment.content = data.comment.content;
828 found.comment.distinguished = data.comment.distinguished;
829 found.comment.updated = data.comment.updated;
830 found.comment.removed = data.comment.removed;
831 found.comment.deleted = data.comment.deleted;
832 found.counts.upvotes = data.counts.upvotes;
833 found.counts.downvotes = data.counts.downvotes;
834 found.counts.score = data.counts.score;
838 export function saveCommentRes(data: CommentView, comments: CommentView[]) {
839 let found = comments.find(c => c.comment.id == data.comment.id);
841 found.saved = data.saved;
845 // TODO Should only use the return now, no state?
846 export function updatePersonBlock(
847 data: BlockPersonResponse,
848 myUserInfo = UserService.Instance.myUserInfo
849 ): Option<PersonBlockView[]> {
850 return myUserInfo.match({
851 some: (mui: MyUserInfo) => {
853 mui.person_blocks.push({
854 person: mui.local_user_view.person,
855 target: data.person_view.person,
857 toast(`${i18n.t("blocked")} ${data.person_view.person.name}`);
859 mui.person_blocks = mui.person_blocks.filter(
860 i => i.target.id != data.person_view.person.id
862 toast(`${i18n.t("unblocked")} ${data.person_view.person.name}`);
864 return Some(mui.person_blocks);
870 export function updateCommunityBlock(
871 data: BlockCommunityResponse,
872 myUserInfo = UserService.Instance.myUserInfo
873 ): Option<CommunityBlockView[]> {
874 return myUserInfo.match({
875 some: (mui: MyUserInfo) => {
877 mui.community_blocks.push({
878 person: mui.local_user_view.person,
879 community: data.community_view.community,
881 toast(`${i18n.t("blocked")} ${data.community_view.community.name}`);
883 mui.community_blocks = mui.community_blocks.filter(
884 i => i.community.id != data.community_view.community.id
886 toast(`${i18n.t("unblocked")} ${data.community_view.community.name}`);
888 return Some(mui.community_blocks);
894 export function createCommentLikeRes(
896 comments: CommentView[]
898 let found = comments.find(c => c.comment.id === data.comment.id);
900 found.counts.score = data.counts.score;
901 found.counts.upvotes = data.counts.upvotes;
902 found.counts.downvotes = data.counts.downvotes;
903 if (data.my_vote !== null) {
904 found.my_vote = data.my_vote;
909 export function createPostLikeFindRes(data: PostView, posts: PostView[]) {
910 let found = posts.find(p => p.post.id == data.post.id);
912 createPostLikeRes(data, found);
916 export function createPostLikeRes(data: PostView, post_view: PostView) {
918 post_view.counts.score = data.counts.score;
919 post_view.counts.upvotes = data.counts.upvotes;
920 post_view.counts.downvotes = data.counts.downvotes;
921 if (data.my_vote !== null) {
922 post_view.my_vote = data.my_vote;
927 export function editPostFindRes(data: PostView, posts: PostView[]) {
928 let found = posts.find(p => p.post.id == data.post.id);
930 editPostRes(data, found);
934 export function editPostRes(data: PostView, post: PostView) {
936 post.post.url = data.post.url;
937 post.post.name = data.post.name;
938 post.post.nsfw = data.post.nsfw;
939 post.post.deleted = data.post.deleted;
940 post.post.removed = data.post.removed;
941 post.post.stickied = data.post.stickied;
942 post.post.body = data.post.body;
943 post.post.locked = data.post.locked;
944 post.saved = data.saved;
948 // TODO possible to make these generic?
949 export function updatePostReportRes(
950 data: PostReportView,
951 reports: PostReportView[]
953 let found = reports.find(p => p.post_report.id == data.post_report.id);
955 found.post_report = data.post_report;
959 export function updateCommentReportRes(
960 data: CommentReportView,
961 reports: CommentReportView[]
963 let found = reports.find(c => c.comment_report.id == data.comment_report.id);
965 found.comment_report = data.comment_report;
969 export function updatePrivateMessageReportRes(
970 data: PrivateMessageReportView,
971 reports: PrivateMessageReportView[]
973 let found = reports.find(
974 c => c.private_message_report.id == data.private_message_report.id
977 found.private_message_report = data.private_message_report;
981 export function updateRegistrationApplicationRes(
982 data: RegistrationApplicationView,
983 applications: RegistrationApplicationView[]
985 let found = applications.find(
986 ra => ra.registration_application.id == data.registration_application.id
989 found.registration_application = data.registration_application;
990 found.admin = data.admin;
991 found.creator_local_user = data.creator_local_user;
995 export function commentsToFlatNodes(comments: CommentView[]): CommentNodeI[] {
996 let nodes: CommentNodeI[] = [];
997 for (let comment of comments) {
998 nodes.push({ comment_view: comment, children: [], depth: 0 });
1003 export function convertCommentSortType(sort: SortType): CommentSortType {
1005 sort == SortType.TopAll ||
1006 sort == SortType.TopDay ||
1007 sort == SortType.TopWeek ||
1008 sort == SortType.TopMonth ||
1009 sort == SortType.TopYear
1011 return CommentSortType.Top;
1012 } else if (sort == SortType.New) {
1013 return CommentSortType.New;
1014 } else if (sort == SortType.Hot || sort == SortType.Active) {
1015 return CommentSortType.Hot;
1017 return CommentSortType.Hot;
1021 export function buildCommentsTree(
1022 comments: CommentView[],
1023 parentComment: boolean
1025 let map = new Map<number, CommentNodeI>();
1026 let depthOffset = !parentComment
1028 : getDepthFromComment(comments[0].comment);
1030 for (let comment_view of comments) {
1031 let node: CommentNodeI = {
1032 comment_view: comment_view,
1034 depth: getDepthFromComment(comment_view.comment) - depthOffset,
1036 map.set(comment_view.comment.id, { ...node });
1039 let tree: CommentNodeI[] = [];
1041 // if its a parent comment fetch, then push the first comment to the top node.
1042 if (parentComment) {
1043 tree.push(map.get(comments[0].comment.id));
1046 for (let comment_view of comments) {
1047 let child = map.get(comment_view.comment.id);
1048 let parent_id = getCommentParentId(comment_view.comment);
1051 let parent = map.get(parentId);
1052 // Necessary because blocked comment might not exist
1054 parent.children.push(child);
1058 if (!parentComment) {
1068 export function getCommentParentId(comment: CommentI): Option<number> {
1069 let split = comment.path.split(".");
1073 if (split.length > 1) {
1074 return Some(Number(split[split.length - 2]));
1080 export function getDepthFromComment(comment: CommentI): number {
1081 return comment.path.split(".").length - 2;
1084 export function insertCommentIntoTree(
1085 tree: CommentNodeI[],
1087 parentComment: boolean
1089 // Building a fake node to be used for later
1090 let node: CommentNodeI = {
1096 getCommentParentId(cv.comment).match({
1098 let parentComment = searchCommentTree(tree, parentId);
1099 parentComment.match({
1101 node.depth = pComment.depth + 1;
1102 pComment.children.unshift(node);
1108 if (!parentComment) {
1115 export function searchCommentTree(
1116 tree: CommentNodeI[],
1118 ): Option<CommentNodeI> {
1119 for (let node of tree) {
1120 if (node.comment_view.comment.id === id) {
1124 for (const child of node.children) {
1125 let res = searchCommentTree([child], id);
1135 export const colorList: string[] = [
1145 function hsl(num: number) {
1146 return `hsla(${num}, 35%, 50%, 1)`;
1149 export function hostname(url: string): string {
1150 let cUrl = new URL(url);
1151 return cUrl.port ? `${cUrl.hostname}:${cUrl.port}` : `${cUrl.hostname}`;
1154 export function validTitle(title?: string): boolean {
1155 // Initial title is null, minimum length is taken care of by textarea's minLength={3}
1156 if (!title || title.length < 3) return true;
1158 const regex = new RegExp(/.*\S.*/, "g");
1160 return regex.test(title);
1163 export function siteBannerCss(banner: string): string {
1165 background-image: linear-gradient( rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8) ) ,url("${banner}"); \
1166 background-attachment: fixed; \
1167 background-position: top; \
1168 background-repeat: no-repeat; \
1169 background-size: 100% cover; \
1172 max-height: 100vh; \
1176 export function isBrowser() {
1177 return typeof window !== "undefined";
1180 export function setIsoData<Type1, Type2, Type3, Type4, Type5>(
1182 cls1?: ClassConstructor<Type1>,
1183 cls2?: ClassConstructor<Type2>,
1184 cls3?: ClassConstructor<Type3>,
1185 cls4?: ClassConstructor<Type4>,
1186 cls5?: ClassConstructor<Type5>
1188 // If its the browser, you need to deserialize the data from the window
1190 let json = window.isoData;
1191 let routeData = json.routeData;
1192 let routeDataOut: any[] = [];
1194 // Can't do array looping because of specific type constructor required
1196 routeDataOut[0] = convertWindowJson(cls1, routeData[0]);
1199 routeDataOut[1] = convertWindowJson(cls2, routeData[1]);
1202 routeDataOut[2] = convertWindowJson(cls3, routeData[2]);
1205 routeDataOut[3] = convertWindowJson(cls4, routeData[3]);
1208 routeDataOut[4] = convertWindowJson(cls5, routeData[4]);
1210 let site_res = convertWindowJson(GetSiteResponse, json.site_res);
1212 let isoData: IsoData = {
1215 routeData: routeDataOut,
1218 } else return context.router.staticContext;
1222 * Necessary since window ISOData can't store function types like Option
1224 export function convertWindowJson<T>(cls: ClassConstructor<T>, data: any): T {
1225 return deserialize(cls, serialize(data));
1228 export function wsSubscribe(parseMessage: any): Subscription {
1230 return WebSocketService.Instance.subject
1231 .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
1233 msg => parseMessage(msg),
1234 err => console.error(err),
1235 () => console.log("complete")
1242 moment.updateLocale("en", {
1263 export function saveScrollPosition(context: any) {
1264 let path: string = context.router.route.location.pathname;
1265 let y = window.scrollY;
1266 sessionStorage.setItem(`scrollPosition_${path}`, y.toString());
1269 export function restoreScrollPosition(context: any) {
1270 let path: string = context.router.route.location.pathname;
1271 let y = Number(sessionStorage.getItem(`scrollPosition_${path}`));
1272 window.scrollTo(0, y);
1275 export function showLocal(isoData: IsoData): boolean {
1276 return isoData.site_res.federated_instances
1277 .map(f => f.linked.length > 0)
1281 export interface ChoicesValue {
1286 export function communityToChoice(cv: CommunityView): ChoicesValue {
1287 let choice: ChoicesValue = {
1288 value: cv.community.id.toString(),
1289 label: communitySelectName(cv),
1294 export function personToChoice(pvs: PersonViewSafe): ChoicesValue {
1295 let choice: ChoicesValue = {
1296 value: pvs.person.id.toString(),
1297 label: personSelectName(pvs),
1302 export async function fetchCommunities(q: string) {
1303 let form = new Search({
1305 type_: Some(SearchType.Communities),
1306 sort: Some(SortType.TopAll),
1307 listing_type: Some(ListingType.All),
1309 limit: Some(fetchLimit),
1311 community_name: None,
1313 auth: auth(false).ok(),
1315 let client = new LemmyHttp(httpBase);
1316 return client.search(form);
1319 export async function fetchUsers(q: string) {
1320 let form = new Search({
1322 type_: Some(SearchType.Users),
1323 sort: Some(SortType.TopAll),
1324 listing_type: Some(ListingType.All),
1326 limit: Some(fetchLimit),
1328 community_name: None,
1330 auth: auth(false).ok(),
1332 let client = new LemmyHttp(httpBase);
1333 return client.search(form);
1336 export const choicesConfig = {
1338 searchResultLimit: fetchLimit,
1340 containerOuter: "choices custom-select px-0",
1342 "choices__inner bg-secondary border-0 py-0 modlog-choices-font-size",
1343 input: "form-control",
1344 inputCloned: "choices__input--cloned",
1345 list: "choices__list",
1346 listItems: "choices__list--multiple",
1347 listSingle: "choices__list--single py-0",
1348 listDropdown: "choices__list--dropdown",
1349 item: "choices__item bg-secondary",
1350 itemSelectable: "choices__item--selectable",
1351 itemDisabled: "choices__item--disabled",
1352 itemChoice: "choices__item--choice",
1353 placeholder: "choices__placeholder",
1354 group: "choices__group",
1355 groupHeading: "choices__heading",
1356 button: "choices__button",
1357 activeState: "is-active",
1358 focusState: "is-focused",
1359 openState: "is-open",
1360 disabledState: "is-disabled",
1361 highlightedState: "text-info",
1362 selectedState: "text-info",
1363 flippedState: "is-flipped",
1364 loadingState: "is-loading",
1365 noResults: "has-no-results",
1366 noChoices: "has-no-choices",
1370 export function communitySelectName(cv: CommunityView): string {
1371 return cv.community.local
1372 ? cv.community.title
1373 : `${hostname(cv.community.actor_id)}/${cv.community.title}`;
1376 export function personSelectName(pvs: PersonViewSafe): string {
1377 let pName = pvs.person.display_name.unwrapOr(pvs.person.name);
1378 return pvs.person.local ? pName : `${hostname(pvs.person.actor_id)}/${pName}`;
1381 export function initializeSite(site: GetSiteResponse) {
1382 UserService.Instance.myUserInfo = site.my_user;
1383 i18n.changeLanguage(getLanguages()[0]);
1386 const SHORTNUM_SI_FORMAT = new Intl.NumberFormat("en-US", {
1387 maximumSignificantDigits: 3,
1389 notation: "compact",
1390 compactDisplay: "short",
1393 export function numToSI(value: number): string {
1394 return SHORTNUM_SI_FORMAT.format(value);
1397 export function isBanned(ps: PersonSafe): boolean {
1398 let expires = ps.ban_expires;
1399 // Add Z to convert from UTC date
1400 // TODO this check probably isn't necessary anymore
1401 if (expires.isSome()) {
1402 if (ps.banned && new Date(expires.unwrap() + "Z") > new Date()) {
1412 export function pushNotNull(array: any[], new_item?: any) {
1414 array.push(...new_item);
1418 export function auth(throwErr = true): Result<string, string> {
1419 return UserService.Instance.auth(throwErr);
1422 export function enableDownvotes(siteRes: GetSiteResponse): boolean {
1423 return siteRes.site_view.map(s => s.site.enable_downvotes).unwrapOr(true);
1426 export function enableNsfw(siteRes: GetSiteResponse): boolean {
1427 return siteRes.site_view.map(s => s.site.enable_nsfw).unwrapOr(false);
1430 export function postToCommentSortType(sort: SortType): CommentSortType {
1431 if ([SortType.Active, SortType.Hot].includes(sort)) {
1432 return CommentSortType.Hot;
1433 } else if ([SortType.New, SortType.NewComments].includes(sort)) {
1434 return CommentSortType.New;
1435 } else if (sort == SortType.Old) {
1436 return CommentSortType.Old;
1438 return CommentSortType.Top;
1442 export function arrayGet<T>(arr: Array<T>, index: number): Result<T, string> {
1443 let out = arr.at(index);
1444 if (out == undefined) {
1445 return Err("Index undefined");
1451 export function myFirstDiscussionLanguageId(
1452 myUserInfo = UserService.Instance.myUserInfo
1454 return myUserInfo.andThen(mui =>
1455 arrayGet(mui.discussion_languages, 0)
1461 export function canCreateCommunity(
1462 siteRes: GetSiteResponse,
1463 myUserInfo = UserService.Instance.myUserInfo
1465 let adminOnly = siteRes.site_view
1466 .map(s => s.site.community_creation_admin_only)
1468 return !adminOnly || amAdmin(myUserInfo);
1471 export function isPostBlocked(
1473 myUserInfo = UserService.Instance.myUserInfo
1478 mui.community_blocks
1479 .map(c => c.community.id)
1480 .includes(pv.community.id) ||
1481 mui.person_blocks.map(p => p.target.id).includes(pv.creator.id)
1486 /// Checks to make sure you can view NSFW posts. Returns true if you can.
1487 export function nsfwCheck(
1489 myUserInfo = UserService.Instance.myUserInfo
1491 let nsfw = pv.post.nsfw || pv.community.nsfw;
1496 .map(m => m.local_user_view.local_user.show_nsfw)