Commit | Line | Data |
---|---|---|
32a1eb7a | 1 | import { WebSocketCloseEventStatusString } from '../types/WebSocket'; |
6af9012e | 2 | import { v4 as uuid } from 'uuid'; |
7dde0b73 | 3 | |
3f40bc9c | 4 | export default class Utils { |
6af9012e | 5 | static generateUUID(): string { |
2e3ac96d | 6 | return uuid(); |
7dde0b73 JB |
7 | } |
8 | ||
9ac86a7e JB |
9 | static async sleep(milliSeconds: number): Promise<NodeJS.Timeout> { |
10 | return new Promise((resolve) => setTimeout(resolve, milliSeconds)); | |
7dde0b73 JB |
11 | } |
12 | ||
9ac86a7e JB |
13 | static secondsToHHMMSS(seconds: number): string { |
14 | return new Date(seconds * 1000).toISOString().substr(11, 8); | |
15 | } | |
16 | ||
17 | static milliSecondsToHHMMSS(milliSeconds: number): string { | |
18 | return new Date(milliSeconds).toISOString().substr(11, 8); | |
7dde0b73 JB |
19 | } |
20 | ||
ca64a820 | 21 | static removeExtraEmptyLines(tab: string[]): void { |
7dde0b73 JB |
22 | // Start from the end |
23 | for (let i = tab.length - 1; i > 0; i--) { | |
24 | // Two consecutive empty lines? | |
25 | if (tab[i].length === 0 && tab[i - 1].length === 0) { | |
26 | // Remove the last one | |
27 | tab.splice(i, 1); | |
28 | } | |
29 | // Check last line | |
30 | if (i === 1 && tab[i - 1].length === 0) { | |
31 | // Remove the first one | |
32 | tab.splice(i - 1, 1); | |
33 | } | |
34 | } | |
35 | } | |
36 | ||
6af9012e | 37 | static convertToDate(value): Date { |
560bcf5b | 38 | // Check |
6af9012e JB |
39 | if (!value) { |
40 | return value; | |
560bcf5b JB |
41 | } |
42 | // Check Type | |
6af9012e JB |
43 | if (!(value instanceof Date)) { |
44 | return new Date(value); | |
7dde0b73 | 45 | } |
6af9012e | 46 | return value; |
7dde0b73 JB |
47 | } |
48 | ||
6af9012e | 49 | static convertToInt(value): number { |
72766a82 JB |
50 | let changedValue = value; |
51 | if (!value) { | |
7dde0b73 JB |
52 | return 0; |
53 | } | |
72766a82 JB |
54 | if (Number.isSafeInteger(value)) { |
55 | return value; | |
56 | } | |
7dde0b73 | 57 | // Check |
72766a82 | 58 | if (typeof value === 'string') { |
7dde0b73 | 59 | // Create Object |
72766a82 | 60 | changedValue = parseInt(value); |
7dde0b73 | 61 | } |
72766a82 | 62 | return changedValue; |
7dde0b73 JB |
63 | } |
64 | ||
6af9012e | 65 | static convertToFloat(value): number { |
72766a82 JB |
66 | let changedValue = value; |
67 | if (!value) { | |
7dde0b73 JB |
68 | return 0; |
69 | } | |
70 | // Check | |
72766a82 | 71 | if (typeof value === 'string') { |
7dde0b73 | 72 | // Create Object |
72766a82 | 73 | changedValue = parseFloat(value); |
7dde0b73 | 74 | } |
72766a82 | 75 | return changedValue; |
7dde0b73 JB |
76 | } |
77 | ||
6af9012e | 78 | static convertToBoolean(value): boolean { |
a6e68f34 JB |
79 | let result = false; |
80 | // Check boolean | |
81 | if (value) { | |
82 | // Check the type | |
83 | if (typeof value === 'boolean') { | |
84 | // Already a boolean | |
85 | result = value; | |
86 | } else { | |
87 | // Convert | |
88 | result = (value === 'true'); | |
89 | } | |
90 | } | |
91 | return result; | |
92 | } | |
93 | ||
6af9012e | 94 | static getRandomFloat(max: number, min = 0): number { |
fee83021 | 95 | return Math.random() < 0.5 ? (1 - Math.random()) * (max - min) + min : Math.random() * (max - min) + min; |
560bcf5b JB |
96 | } |
97 | ||
6af9012e | 98 | static getRandomInt(max: number, min = 0): number { |
7dde0b73 | 99 | if (min) { |
fee83021 | 100 | return Math.floor(Math.random() * (max - min + 1) + min); |
7dde0b73 | 101 | } |
fee83021 | 102 | return Math.floor(Math.random() * max + 1); |
560bcf5b JB |
103 | } |
104 | ||
6af9012e | 105 | static roundTo(number: number, scale: number): number { |
ad3de6c4 JB |
106 | const roundPower = Math.pow(10, scale); |
107 | return Math.round(number * roundPower) / roundPower; | |
560bcf5b JB |
108 | } |
109 | ||
6d3a11a0 JB |
110 | static truncTo(number: number, scale: number): number { |
111 | const truncPower = Math.pow(10, scale); | |
112 | return Math.trunc(number * truncPower) / truncPower; | |
113 | } | |
114 | ||
6af9012e | 115 | static getRandomFloatRounded(max: number, min = 0, scale = 2): number { |
560bcf5b JB |
116 | if (min) { |
117 | return Utils.roundTo(Utils.getRandomFloat(max, min), scale); | |
118 | } | |
119 | return Utils.roundTo(Utils.getRandomFloat(max), scale); | |
7dde0b73 JB |
120 | } |
121 | ||
6af9012e | 122 | static logPrefix(prefixString = ''): string { |
7dde0b73 | 123 | const date = new Date(); |
4455e614 | 124 | return date.toLocaleString() + prefixString; |
7dde0b73 | 125 | } |
1d7ca20c | 126 | |
e56aa9a4 JB |
127 | static cloneObject<T>(object: T): T { |
128 | return JSON.parse(JSON.stringify(object)) as T; | |
2e6f5966 | 129 | } |
facd8ebd | 130 | |
6af9012e | 131 | static isIterable(obj): boolean { |
67e9cccf JB |
132 | if (obj) { |
133 | return typeof obj[Symbol.iterator] === 'function'; | |
134 | } | |
135 | return false; | |
136 | } | |
137 | ||
6af9012e | 138 | static isEmptyJSon(document): boolean { |
67e9cccf JB |
139 | // Empty? |
140 | if (!document) { | |
141 | return true; | |
142 | } | |
143 | // Check type | |
144 | if (typeof document !== 'object') { | |
145 | return true; | |
146 | } | |
147 | // Check | |
148 | return Object.keys(document).length === 0; | |
149 | } | |
150 | ||
6af9012e | 151 | static isString(value): boolean { |
560bcf5b JB |
152 | return typeof value === 'string'; |
153 | } | |
154 | ||
7ec46a9a | 155 | static isUndefined(value): boolean { |
ead548f2 JB |
156 | return typeof value === 'undefined'; |
157 | } | |
158 | ||
6af9012e | 159 | static isNullOrUndefined(value): boolean { |
32a1eb7a | 160 | // eslint-disable-next-line no-eq-null, eqeqeq |
ead548f2 | 161 | if (value == null) { |
facd8ebd JB |
162 | return true; |
163 | } | |
164 | return false; | |
165 | } | |
4a56deef | 166 | |
6af9012e | 167 | static isEmptyArray(object): boolean { |
fd1ee77c JB |
168 | if (!object) { |
169 | return true; | |
170 | } | |
4a56deef JB |
171 | if (Array.isArray(object) && object.length > 0) { |
172 | return false; | |
173 | } | |
174 | return true; | |
175 | } | |
7abfea5f | 176 | |
6af9012e | 177 | static isEmptyObject(obj): boolean { |
7abfea5f JB |
178 | return !Object.keys(obj).length; |
179 | } | |
7ec46a9a JB |
180 | |
181 | static insertAt = (str: string, subStr: string, pos: number): string => `${str.slice(0, pos)}${subStr}${str.slice(pos)}`; | |
032d6efc JB |
182 | |
183 | /** | |
184 | * @param {number} [retryNumber=0] | |
185 | * @return {number} - delay in milliseconds | |
186 | */ | |
187 | static exponentialDelay(retryNumber = 0): number { | |
188 | const delay = Math.pow(2, retryNumber) * 100; | |
189 | const randomSum = delay * 0.2 * Math.random(); // 0-20% of the delay | |
190 | return delay + randomSum; | |
191 | } | |
32a1eb7a JB |
192 | |
193 | static getWebSocketCloseEventStatusString(code: number): string { | |
194 | if (code >= 0 && code <= 999) { | |
195 | return '(Unused)'; | |
196 | } else if (code >= 1016) { | |
197 | if (code <= 1999) { | |
198 | return '(For WebSocket standard)'; | |
199 | } else if (code <= 2999) { | |
200 | return '(For WebSocket extensions)'; | |
201 | } else if (code <= 3999) { | |
202 | return '(For libraries and frameworks)'; | |
203 | } else if (code <= 4999) { | |
204 | return '(For applications)'; | |
205 | } | |
206 | } | |
207 | if (!Utils.isUndefined(WebSocketCloseEventStatusString[code])) { | |
208 | return WebSocketCloseEventStatusString[code]; | |
209 | } | |
210 | return '(Unknown)'; | |
211 | } | |
7dde0b73 | 212 | } |