import { UserOperation, Comment, User, SortType, ListingType } from './interfaces'; import * as markdown_it from 'markdown-it'; import * as markdown_it_container from 'markdown-it-container'; export let repoUrl = 'https://github.com/dessalines/lemmy'; export function msgOp(msg: any): UserOperation { let opStr: string = msg.op; return UserOperation[opStr]; } var md = new markdown_it({ html: true, linkify: true, typographer: true }).use(markdown_it_container, 'spoiler', { validate: function(params: any) { return params.trim().match(/^spoiler\s+(.*)$/); }, render: function (tokens: any, idx: any) { var m = tokens[idx].info.trim().match(/^spoiler\s+(.*)$/); if (tokens[idx].nesting === 1) { // opening tag return '
' + md.utils.escapeHtml(m[1]) + '\n'; } else { // closing tag return '
\n'; } } }); export function hotRank(comment: Comment): number { // Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity let date: Date = new Date(comment.published + '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 + comment.score))) / Math.pow(hoursElapsed + 2, 1.8); // console.log(`Comment: ${comment.content}\nRank: ${rank}\nScore: ${comment.score}\nHours: ${hoursElapsed}`); return rank; } export function mdToHtml(text: string) { return {__html: md.render(text)}; } export function getUnixTime(text: string): number { return text ? new Date(text).getTime()/1000 : undefined; } export function addTypeInfo(arr: Array, name: string): Array<{type_: string, data: T}> { return arr.map(e => {return {type_: name, data: e}}); } export function canMod(user: User, modIds: Array, creator_id: number): boolean { // You can do moderator actions only on the mods added after you. if (user) { let yourIndex = modIds.findIndex(id => id == user.id); if (yourIndex == -1) { return false; } else { modIds = modIds.slice(0, yourIndex+1); // +1 cause you cant mod yourself return !modIds.includes(creator_id); } } else { return false; } } export function isMod(modIds: Array, creator_id: number): boolean { return modIds.includes(creator_id); } var imageRegex = new RegExp(`(http)?s?:?(\/\/[^"']*\.(?:png|jpg|jpeg|gif|png|svg))`); export function isImage(url: string) { return imageRegex.test(url); } export function validURL(str: string) { var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol '((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // domain name '((\\d{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address '(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path '(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string '(\\#[-a-z\\d_]*)?$','i'); // fragment locator return !!pattern.test(str); } export let fetchLimit: number = 20; export function capitalizeFirstLetter(str: string): string { return str.charAt(0).toUpperCase() + str.slice(1); } export function routeSortTypeToEnum(sort: string): SortType { if (sort == 'new') { return SortType.New; } else if (sort == 'hot') { return SortType.Hot; } else if (sort == 'topday') { return SortType.TopDay; } else if (sort == 'topweek') { return SortType.TopWeek; } else if (sort == 'topmonth') { return SortType.TopMonth; } else if (sort == 'topall') { return SortType.TopAll; } } export function routeListingTypeToEnum(type: string): ListingType { return ListingType[capitalizeFirstLetter(type)]; } export async function getPageTitle(url: string) { let res = await fetch(`https://textance.herokuapp.com/title/${url}`); let data = await res.text(); return data; } export function debounce(func: any, wait: number = 500, immediate: boolean = 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: number; // Calling debounce returns a new anonymous function return function() { // reference the context and args for the setTimeout function var context = this, 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(context, args); } }, wait); // Immediate mode and no wait timer? Execute the function.. if (callNow) func.apply(context, args); } } export function getLanguage(): string { return (navigator.language || navigator.userLanguage); } export function getMomentLanguage(): string { let lang = getLanguage(); if (lang.startsWith('zh')) { lang = 'zh-cn'; } else if (lang.startsWith('sv')) { lang = 'sv'; } else if (lang.startsWith('fr')) { lang = 'fr'; } else if (lang.startsWith('de')) { lang = 'de'; } else if (lang.startsWith('ru')) { lang = 'ru'; } else { lang = 'en'; } return lang; }