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(--${background})`;
533 backgroundColor: backgroundColor,
540 export function pictrsDeleteToast(
541 clickToDeleteText: string,
542 deletePictureText: string,
543 failedDeletePictureText: string,
547 let backgroundColor = `var(--light)`;
548 let toast = Toastify({
549 text: clickToDeleteText,
550 backgroundColor: backgroundColor,
556 fetch(deleteUrl).then(res => {
558 if (res.ok === true) {
559 alert(deletePictureText);
561 alert(failedDeletePictureText);
571 interface NotifyInfo {
573 icon: Option<string>;
578 export function messageToastify(info: NotifyInfo, router: any) {
580 let htmlBody = info.body ? md.render(info.body) : "";
581 let backgroundColor = `var(--light)`;
583 let toast = Toastify({
584 text: `${htmlBody}<br />${info.name}`,
586 backgroundColor: backgroundColor,
587 className: "text-dark",
596 router.history.push(info.link);
603 export function notifyPost(post_view: PostView, router: any) {
604 let info: NotifyInfo = {
605 name: post_view.community.name,
606 icon: post_view.community.icon,
607 link: `/post/${post_view.post.id}`,
608 body: post_view.post.name,
610 notify(info, router);
613 export function notifyComment(comment_view: CommentView, router: any) {
614 let info: NotifyInfo = {
615 name: comment_view.creator.name,
616 icon: comment_view.creator.avatar,
617 link: `/comment/${comment_view.comment.id}`,
618 body: comment_view.comment.content,
620 notify(info, router);
623 export function notifyPrivateMessage(pmv: PrivateMessageView, router: any) {
624 let info: NotifyInfo = {
625 name: pmv.creator.name,
626 icon: pmv.creator.avatar,
628 body: pmv.private_message.content,
630 notify(info, router);
633 function notify(info: NotifyInfo, router: any) {
634 messageToastify(info, router);
636 if (Notification.permission !== "granted") Notification.requestPermission();
638 var notification = new Notification(info.name, {
639 ...{ body: info.body },
640 ...(info.icon.isSome() && { icon: info.icon.unwrap() }),
643 notification.onclick = (ev: Event): any => {
645 router.history.push(info.link);
650 export function setupTribute() {
652 noMatchTemplate: function () {
659 menuItemTemplate: (item: any) => {
660 let shortName = `:${item.original.key}:`;
661 return `${item.original.val} ${shortName}`;
663 selectTemplate: (item: any) => {
664 return `${item.original.val}`;
666 values: Object.entries(emojiShortName).map(e => {
667 return { key: e[1], val: e[0] };
670 autocompleteMode: true,
672 // menuItemLimit: mentionDropdownFetchLimit,
673 menuShowMinLength: 2,
678 selectTemplate: (item: any) => {
679 let it: PersonTribute = item.original;
680 return `[${it.key}](${it.view.person.actor_id})`;
682 values: debounce(async (text: string, cb: any) => {
683 cb(await personSearch(text));
686 autocompleteMode: true,
688 // menuItemLimit: mentionDropdownFetchLimit,
689 menuShowMinLength: 2,
695 selectTemplate: (item: any) => {
696 let it: CommunityTribute = item.original;
697 return `[${it.key}](${it.view.community.actor_id})`;
699 values: debounce(async (text: string, cb: any) => {
700 cb(await communitySearch(text));
703 autocompleteMode: true,
705 // menuItemLimit: mentionDropdownFetchLimit,
706 menuShowMinLength: 2,
712 var tippyInstance: any;
714 tippyInstance = tippy("[data-tippy-content]");
717 export function setupTippy() {
719 tippyInstance.forEach((e: any) => e.destroy());
720 tippyInstance = tippy("[data-tippy-content]", {
722 // Display on "long press"
723 touch: ["hold", 500],
728 interface PersonTribute {
730 view: PersonViewSafe;
733 async function personSearch(text: string): Promise<PersonTribute[]> {
734 let users = (await fetchUsers(text)).users;
735 let persons: PersonTribute[] = users.map(pv => {
736 let tribute: PersonTribute = {
737 key: `@${pv.person.name}@${hostname(pv.person.actor_id)}`,
745 interface CommunityTribute {
750 async function communitySearch(text: string): Promise<CommunityTribute[]> {
751 let comms = (await fetchCommunities(text)).communities;
752 let communities: CommunityTribute[] = comms.map(cv => {
753 let tribute: CommunityTribute = {
754 key: `!${cv.community.name}@${hostname(cv.community.actor_id)}`,
762 export function getListingTypeFromProps(
764 defaultListingType: ListingType,
765 myUserInfo = UserService.Instance.myUserInfo
767 return props.match.params.listing_type
768 ? routeListingTypeToEnum(props.match.params.listing_type)
771 Object.values(ListingType)[
772 me.local_user_view.local_user.default_listing_type
774 none: defaultListingType,
778 export function getListingTypeFromPropsNoDefault(props: any): ListingType {
779 return props.match.params.listing_type
780 ? routeListingTypeToEnum(props.match.params.listing_type)
784 export function getDataTypeFromProps(props: any): DataType {
785 return props.match.params.data_type
786 ? routeDataTypeToEnum(props.match.params.data_type)
790 export function getSortTypeFromProps(
792 myUserInfo = UserService.Instance.myUserInfo
794 return props.match.params.sort
795 ? routeSortTypeToEnum(props.match.params.sort)
798 Object.values(SortType)[
799 mui.local_user_view.local_user.default_sort_type
801 none: SortType.Active,
805 export function getPageFromProps(props: any): number {
806 return props.match.params.page ? Number(props.match.params.page) : 1;
809 export function getRecipientIdFromProps(props: any): number {
810 return props.match.params.recipient_id
811 ? Number(props.match.params.recipient_id)
815 export function getIdFromProps(props: any): Option<number> {
816 let id: string = props.match.params.post_id;
817 return id ? Some(Number(id)) : None;
820 export function getCommentIdFromProps(props: any): Option<number> {
821 let id: string = props.match.params.comment_id;
822 return id ? Some(Number(id)) : None;
825 export function getUsernameFromProps(props: any): string {
826 return props.match.params.username;
829 export function editCommentRes(data: CommentView, comments: CommentView[]) {
830 let found = comments.find(c => c.comment.id == data.comment.id);
832 found.comment.content = data.comment.content;
833 found.comment.distinguished = data.comment.distinguished;
834 found.comment.updated = data.comment.updated;
835 found.comment.removed = data.comment.removed;
836 found.comment.deleted = data.comment.deleted;
837 found.counts.upvotes = data.counts.upvotes;
838 found.counts.downvotes = data.counts.downvotes;
839 found.counts.score = data.counts.score;
843 export function saveCommentRes(data: CommentView, comments: CommentView[]) {
844 let found = comments.find(c => c.comment.id == data.comment.id);
846 found.saved = data.saved;
850 // TODO Should only use the return now, no state?
851 export function updatePersonBlock(
852 data: BlockPersonResponse,
853 myUserInfo = UserService.Instance.myUserInfo
854 ): Option<PersonBlockView[]> {
855 return myUserInfo.match({
856 some: (mui: MyUserInfo) => {
858 mui.person_blocks.push({
859 person: mui.local_user_view.person,
860 target: data.person_view.person,
862 toast(`${i18n.t("blocked")} ${data.person_view.person.name}`);
864 mui.person_blocks = mui.person_blocks.filter(
865 i => i.target.id != data.person_view.person.id
867 toast(`${i18n.t("unblocked")} ${data.person_view.person.name}`);
869 return Some(mui.person_blocks);
875 export function updateCommunityBlock(
876 data: BlockCommunityResponse,
877 myUserInfo = UserService.Instance.myUserInfo
878 ): Option<CommunityBlockView[]> {
879 return myUserInfo.match({
880 some: (mui: MyUserInfo) => {
882 mui.community_blocks.push({
883 person: mui.local_user_view.person,
884 community: data.community_view.community,
886 toast(`${i18n.t("blocked")} ${data.community_view.community.name}`);
888 mui.community_blocks = mui.community_blocks.filter(
889 i => i.community.id != data.community_view.community.id
891 toast(`${i18n.t("unblocked")} ${data.community_view.community.name}`);
893 return Some(mui.community_blocks);
899 export function createCommentLikeRes(
901 comments: CommentView[]
903 let found = comments.find(c => c.comment.id === data.comment.id);
905 found.counts.score = data.counts.score;
906 found.counts.upvotes = data.counts.upvotes;
907 found.counts.downvotes = data.counts.downvotes;
908 if (data.my_vote !== null) {
909 found.my_vote = data.my_vote;
914 export function createPostLikeFindRes(data: PostView, posts: PostView[]) {
915 let found = posts.find(p => p.post.id == data.post.id);
917 createPostLikeRes(data, found);
921 export function createPostLikeRes(data: PostView, post_view: PostView) {
923 post_view.counts.score = data.counts.score;
924 post_view.counts.upvotes = data.counts.upvotes;
925 post_view.counts.downvotes = data.counts.downvotes;
926 if (data.my_vote !== null) {
927 post_view.my_vote = data.my_vote;
932 export function editPostFindRes(data: PostView, posts: PostView[]) {
933 let found = posts.find(p => p.post.id == data.post.id);
935 editPostRes(data, found);
939 export function editPostRes(data: PostView, post: PostView) {
941 post.post.url = data.post.url;
942 post.post.name = data.post.name;
943 post.post.nsfw = data.post.nsfw;
944 post.post.deleted = data.post.deleted;
945 post.post.removed = data.post.removed;
946 post.post.stickied = data.post.stickied;
947 post.post.body = data.post.body;
948 post.post.locked = data.post.locked;
949 post.saved = data.saved;
953 // TODO possible to make these generic?
954 export function updatePostReportRes(
955 data: PostReportView,
956 reports: PostReportView[]
958 let found = reports.find(p => p.post_report.id == data.post_report.id);
960 found.post_report = data.post_report;
964 export function updateCommentReportRes(
965 data: CommentReportView,
966 reports: CommentReportView[]
968 let found = reports.find(c => c.comment_report.id == data.comment_report.id);
970 found.comment_report = data.comment_report;
974 export function updatePrivateMessageReportRes(
975 data: PrivateMessageReportView,
976 reports: PrivateMessageReportView[]
978 let found = reports.find(
979 c => c.private_message_report.id == data.private_message_report.id
982 found.private_message_report = data.private_message_report;
986 export function updateRegistrationApplicationRes(
987 data: RegistrationApplicationView,
988 applications: RegistrationApplicationView[]
990 let found = applications.find(
991 ra => ra.registration_application.id == data.registration_application.id
994 found.registration_application = data.registration_application;
995 found.admin = data.admin;
996 found.creator_local_user = data.creator_local_user;
1000 export function commentsToFlatNodes(comments: CommentView[]): CommentNodeI[] {
1001 let nodes: CommentNodeI[] = [];
1002 for (let comment of comments) {
1003 nodes.push({ comment_view: comment, children: [], depth: 0 });
1008 export function convertCommentSortType(sort: SortType): CommentSortType {
1010 sort == SortType.TopAll ||
1011 sort == SortType.TopDay ||
1012 sort == SortType.TopWeek ||
1013 sort == SortType.TopMonth ||
1014 sort == SortType.TopYear
1016 return CommentSortType.Top;
1017 } else if (sort == SortType.New) {
1018 return CommentSortType.New;
1019 } else if (sort == SortType.Hot || sort == SortType.Active) {
1020 return CommentSortType.Hot;
1022 return CommentSortType.Hot;
1026 export function buildCommentsTree(
1027 comments: CommentView[],
1028 parentComment: boolean
1030 let map = new Map<number, CommentNodeI>();
1031 let depthOffset = !parentComment
1033 : getDepthFromComment(comments[0].comment);
1035 for (let comment_view of comments) {
1036 let node: CommentNodeI = {
1037 comment_view: comment_view,
1039 depth: getDepthFromComment(comment_view.comment) - depthOffset,
1041 map.set(comment_view.comment.id, { ...node });
1044 let tree: CommentNodeI[] = [];
1046 // if its a parent comment fetch, then push the first comment to the top node.
1047 if (parentComment) {
1048 tree.push(map.get(comments[0].comment.id));
1051 for (let comment_view of comments) {
1052 let child = map.get(comment_view.comment.id);
1053 let parent_id = getCommentParentId(comment_view.comment);
1056 let parent = map.get(parentId);
1057 // Necessary because blocked comment might not exist
1059 parent.children.push(child);
1063 if (!parentComment) {
1073 export function getCommentParentId(comment: CommentI): Option<number> {
1074 let split = comment.path.split(".");
1078 if (split.length > 1) {
1079 return Some(Number(split[split.length - 2]));
1085 export function getDepthFromComment(comment: CommentI): number {
1086 return comment.path.split(".").length - 2;
1089 export function insertCommentIntoTree(
1090 tree: CommentNodeI[],
1092 parentComment: boolean
1094 // Building a fake node to be used for later
1095 let node: CommentNodeI = {
1101 getCommentParentId(cv.comment).match({
1103 let parentComment = searchCommentTree(tree, parentId);
1104 parentComment.match({
1106 node.depth = pComment.depth + 1;
1107 pComment.children.unshift(node);
1113 if (!parentComment) {
1120 export function searchCommentTree(
1121 tree: CommentNodeI[],
1123 ): Option<CommentNodeI> {
1124 for (let node of tree) {
1125 if (node.comment_view.comment.id === id) {
1129 for (const child of node.children) {
1130 let res = searchCommentTree([child], id);
1140 export const colorList: string[] = [
1150 function hsl(num: number) {
1151 return `hsla(${num}, 35%, 50%, 1)`;
1154 export function hostname(url: string): string {
1155 let cUrl = new URL(url);
1156 return cUrl.port ? `${cUrl.hostname}:${cUrl.port}` : `${cUrl.hostname}`;
1159 export function validTitle(title?: string): boolean {
1160 // Initial title is null, minimum length is taken care of by textarea's minLength={3}
1161 if (!title || title.length < 3) return true;
1163 const regex = new RegExp(/.*\S.*/, "g");
1165 return regex.test(title);
1168 export function siteBannerCss(banner: string): string {
1170 background-image: linear-gradient( rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8) ) ,url("${banner}"); \
1171 background-attachment: fixed; \
1172 background-position: top; \
1173 background-repeat: no-repeat; \
1174 background-size: 100% cover; \
1177 max-height: 100vh; \
1181 export function isBrowser() {
1182 return typeof window !== "undefined";
1185 export function setIsoData<Type1, Type2, Type3, Type4, Type5>(
1187 cls1?: ClassConstructor<Type1>,
1188 cls2?: ClassConstructor<Type2>,
1189 cls3?: ClassConstructor<Type3>,
1190 cls4?: ClassConstructor<Type4>,
1191 cls5?: ClassConstructor<Type5>
1193 // If its the browser, you need to deserialize the data from the window
1195 let json = window.isoData;
1196 let routeData = json.routeData;
1197 let routeDataOut: any[] = [];
1199 // Can't do array looping because of specific type constructor required
1201 routeDataOut[0] = convertWindowJson(cls1, routeData[0]);
1204 routeDataOut[1] = convertWindowJson(cls2, routeData[1]);
1207 routeDataOut[2] = convertWindowJson(cls3, routeData[2]);
1210 routeDataOut[3] = convertWindowJson(cls4, routeData[3]);
1213 routeDataOut[4] = convertWindowJson(cls5, routeData[4]);
1215 let site_res = convertWindowJson(GetSiteResponse, json.site_res);
1217 let isoData: IsoData = {
1220 routeData: routeDataOut,
1223 } else return context.router.staticContext;
1227 * Necessary since window ISOData can't store function types like Option
1229 export function convertWindowJson<T>(cls: ClassConstructor<T>, data: any): T {
1230 return deserialize(cls, serialize(data));
1233 export function wsSubscribe(parseMessage: any): Subscription {
1235 return WebSocketService.Instance.subject
1236 .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
1238 msg => parseMessage(msg),
1239 err => console.error(err),
1240 () => console.log("complete")
1247 moment.updateLocale("en", {
1268 export function saveScrollPosition(context: any) {
1269 let path: string = context.router.route.location.pathname;
1270 let y = window.scrollY;
1271 sessionStorage.setItem(`scrollPosition_${path}`, y.toString());
1274 export function restoreScrollPosition(context: any) {
1275 let path: string = context.router.route.location.pathname;
1276 let y = Number(sessionStorage.getItem(`scrollPosition_${path}`));
1277 window.scrollTo(0, y);
1280 export function showLocal(isoData: IsoData): boolean {
1281 return isoData.site_res.federated_instances
1282 .map(f => f.linked.length > 0)
1286 export interface ChoicesValue {
1291 export function communityToChoice(cv: CommunityView): ChoicesValue {
1292 let choice: ChoicesValue = {
1293 value: cv.community.id.toString(),
1294 label: communitySelectName(cv),
1299 export function personToChoice(pvs: PersonViewSafe): ChoicesValue {
1300 let choice: ChoicesValue = {
1301 value: pvs.person.id.toString(),
1302 label: personSelectName(pvs),
1307 export async function fetchCommunities(q: string) {
1308 let form = new Search({
1310 type_: Some(SearchType.Communities),
1311 sort: Some(SortType.TopAll),
1312 listing_type: Some(ListingType.All),
1314 limit: Some(fetchLimit),
1316 community_name: None,
1318 auth: auth(false).ok(),
1320 let client = new LemmyHttp(httpBase);
1321 return client.search(form);
1324 export async function fetchUsers(q: string) {
1325 let form = new Search({
1327 type_: Some(SearchType.Users),
1328 sort: Some(SortType.TopAll),
1329 listing_type: Some(ListingType.All),
1331 limit: Some(fetchLimit),
1333 community_name: None,
1335 auth: auth(false).ok(),
1337 let client = new LemmyHttp(httpBase);
1338 return client.search(form);
1341 export const choicesConfig = {
1343 searchResultLimit: fetchLimit,
1345 containerOuter: "choices custom-select px-0",
1347 "choices__inner bg-secondary border-0 py-0 modlog-choices-font-size",
1348 input: "form-control",
1349 inputCloned: "choices__input--cloned",
1350 list: "choices__list",
1351 listItems: "choices__list--multiple",
1352 listSingle: "choices__list--single py-0",
1353 listDropdown: "choices__list--dropdown",
1354 item: "choices__item bg-secondary",
1355 itemSelectable: "choices__item--selectable",
1356 itemDisabled: "choices__item--disabled",
1357 itemChoice: "choices__item--choice",
1358 placeholder: "choices__placeholder",
1359 group: "choices__group",
1360 groupHeading: "choices__heading",
1361 button: "choices__button",
1362 activeState: "is-active",
1363 focusState: "is-focused",
1364 openState: "is-open",
1365 disabledState: "is-disabled",
1366 highlightedState: "text-info",
1367 selectedState: "text-info",
1368 flippedState: "is-flipped",
1369 loadingState: "is-loading",
1370 noResults: "has-no-results",
1371 noChoices: "has-no-choices",
1375 export function communitySelectName(cv: CommunityView): string {
1376 return cv.community.local
1377 ? cv.community.title
1378 : `${hostname(cv.community.actor_id)}/${cv.community.title}`;
1381 export function personSelectName(pvs: PersonViewSafe): string {
1382 let pName = pvs.person.display_name.unwrapOr(pvs.person.name);
1383 return pvs.person.local ? pName : `${hostname(pvs.person.actor_id)}/${pName}`;
1386 export function initializeSite(site: GetSiteResponse) {
1387 UserService.Instance.myUserInfo = site.my_user;
1388 i18n.changeLanguage(getLanguages()[0]);
1391 const SHORTNUM_SI_FORMAT = new Intl.NumberFormat("en-US", {
1392 maximumSignificantDigits: 3,
1394 notation: "compact",
1395 compactDisplay: "short",
1398 export function numToSI(value: number): string {
1399 return SHORTNUM_SI_FORMAT.format(value);
1402 export function isBanned(ps: PersonSafe): boolean {
1403 let expires = ps.ban_expires;
1404 // Add Z to convert from UTC date
1405 // TODO this check probably isn't necessary anymore
1406 if (expires.isSome()) {
1407 if (ps.banned && new Date(expires.unwrap() + "Z") > new Date()) {
1417 export function pushNotNull(array: any[], new_item?: any) {
1419 array.push(...new_item);
1423 export function auth(throwErr = true): Result<string, string> {
1424 return UserService.Instance.auth(throwErr);
1427 export function enableDownvotes(siteRes: GetSiteResponse): boolean {
1428 return siteRes.site_view.map(s => s.site.enable_downvotes).unwrapOr(true);
1431 export function enableNsfw(siteRes: GetSiteResponse): boolean {
1432 return siteRes.site_view.map(s => s.site.enable_nsfw).unwrapOr(false);
1435 export function postToCommentSortType(sort: SortType): CommentSortType {
1436 if ([SortType.Active, SortType.Hot].includes(sort)) {
1437 return CommentSortType.Hot;
1438 } else if ([SortType.New, SortType.NewComments].includes(sort)) {
1439 return CommentSortType.New;
1440 } else if (sort == SortType.Old) {
1441 return CommentSortType.Old;
1443 return CommentSortType.Top;
1447 export function arrayGet<T>(arr: Array<T>, index: number): Result<T, string> {
1448 let out = arr.at(index);
1449 if (out == undefined) {
1450 return Err("Index undefined");
1456 export function myFirstDiscussionLanguageId(
1457 myUserInfo = UserService.Instance.myUserInfo
1459 return myUserInfo.andThen(mui =>
1460 arrayGet(mui.discussion_languages, 0)
1466 export function canCreateCommunity(
1467 siteRes: GetSiteResponse,
1468 myUserInfo = UserService.Instance.myUserInfo
1470 let adminOnly = siteRes.site_view
1471 .map(s => s.site.community_creation_admin_only)
1473 return !adminOnly || amAdmin(myUserInfo);
1476 export function isPostBlocked(
1478 myUserInfo = UserService.Instance.myUserInfo
1483 mui.community_blocks
1484 .map(c => c.community.id)
1485 .includes(pv.community.id) ||
1486 mui.person_blocks.map(p => p.target.id).includes(pv.creator.id)
1491 /// Checks to make sure you can view NSFW posts. Returns true if you can.
1492 export function nsfwCheck(
1494 myUserInfo = UserService.Instance.myUserInfo
1496 let nsfw = pv.post.nsfw || pv.community.nsfw;
1501 .map(m => m.local_user_view.local_user.show_nsfw)