1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
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 '<details><summary>' + md.utils.escapeHtml(m[1]) + '</summary>\n';
} else {
// closing tag
return '</details>\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: ${hoursElapsed}`);
return rank;
}
export function mdToHtml(text: string) {
return {__html: md.render(text)};
}
export function getUnixTime(text: string): number {
return text ? new Date(text).getTime()/1000 : undefined;
}
export function addTypeInfo<T>(arr: Array<T>, name: string): Array<{type_: string, data: T}> {
return arr.map(e => {return {type_: name, data: e}});
}
export function canMod(user: User, modIds: Array<number>, creator_id: number): boolean {
// You can do moderator actions only on the mods added after you.
if (user) {
let yourIndex = modIds.findIndex(id => id == user.id);
if (yourIndex == -1) {
return false;
} else {
modIds = modIds.slice(0, yourIndex+1); // +1 cause you cant mod yourself
return !modIds.includes(creator_id);
}
} else {
return false;
}
}
export function isMod(modIds: Array<number>, creator_id: number): boolean {
return modIds.includes(creator_id);
}
var imageRegex = new RegExp(`(http)?s?:?(\/\/[^"']*\.(?:png|jpg|jpeg|gif|png|svg))`);
export function isImage(url: string) {
return imageRegex.test(url);
}
export function validURL(str: string) {
var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol
'((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // domain name
'((\\d{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path
'(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string
'(\\#[-a-z\\d_]*)?$','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() {
return (navigator.language || navigator.userLanguage);
}
|
