Commit | Line | Data |
---|---|---|
a4624c96 | 1 | import Configuration from './Configuration'; |
32a1eb7a | 2 | import { WebSocketCloseEventStatusString } from '../types/WebSocket'; |
a4624c96 | 3 | import { WorkerProcessType } from '../types/Worker'; |
c37528f1 | 4 | import crypto from 'crypto'; |
6af9012e | 5 | import { v4 as uuid } from 'uuid'; |
7dde0b73 | 6 | |
3f40bc9c | 7 | export default class Utils { |
0f16a662 | 8 | public static logPrefix(prefixString = ''): string { |
147d0e0f JB |
9 | return new Date().toLocaleString() + prefixString; |
10 | } | |
11 | ||
0f16a662 | 12 | public static generateUUID(): string { |
2e3ac96d | 13 | return uuid(); |
7dde0b73 JB |
14 | } |
15 | ||
0f16a662 | 16 | public static async sleep(milliSeconds: number): Promise<NodeJS.Timeout> { |
9ac86a7e | 17 | return new Promise((resolve) => setTimeout(resolve, milliSeconds)); |
7dde0b73 JB |
18 | } |
19 | ||
0f16a662 | 20 | public static secondsToHHMMSS(seconds: number): string { |
a9dc13ad | 21 | return Utils.milliSecondsToHHMMSS(seconds * 1000); |
9ac86a7e JB |
22 | } |
23 | ||
0f16a662 | 24 | public static milliSecondsToHHMMSS(milliSeconds: number): string { |
9ac86a7e | 25 | return new Date(milliSeconds).toISOString().substr(11, 8); |
7dde0b73 JB |
26 | } |
27 | ||
0f16a662 | 28 | public static removeExtraEmptyLines(tab: string[]): void { |
7dde0b73 JB |
29 | // Start from the end |
30 | for (let i = tab.length - 1; i > 0; i--) { | |
31 | // Two consecutive empty lines? | |
32 | if (tab[i].length === 0 && tab[i - 1].length === 0) { | |
33 | // Remove the last one | |
34 | tab.splice(i, 1); | |
35 | } | |
36 | // Check last line | |
37 | if (i === 1 && tab[i - 1].length === 0) { | |
38 | // Remove the first one | |
39 | tab.splice(i - 1, 1); | |
40 | } | |
41 | } | |
42 | } | |
43 | ||
0f16a662 | 44 | public static convertToDate(value: unknown): Date { |
560bcf5b | 45 | // Check |
6af9012e | 46 | if (!value) { |
73d09045 | 47 | return value as Date; |
560bcf5b JB |
48 | } |
49 | // Check Type | |
6af9012e | 50 | if (!(value instanceof Date)) { |
73d09045 | 51 | return new Date(value as string); |
7dde0b73 | 52 | } |
6af9012e | 53 | return value; |
7dde0b73 JB |
54 | } |
55 | ||
0f16a662 | 56 | public static convertToInt(value: unknown): number { |
73d09045 | 57 | let changedValue: number = value as number; |
72766a82 | 58 | if (!value) { |
7dde0b73 JB |
59 | return 0; |
60 | } | |
72766a82 | 61 | if (Number.isSafeInteger(value)) { |
95926c9b | 62 | return value as number; |
72766a82 | 63 | } |
7dde0b73 | 64 | // Check |
087a502d | 65 | if (Utils.isString(value)) { |
7dde0b73 | 66 | // Create Object |
73d09045 | 67 | changedValue = parseInt(value as string); |
7dde0b73 | 68 | } |
72766a82 | 69 | return changedValue; |
7dde0b73 JB |
70 | } |
71 | ||
0f16a662 | 72 | public static convertToFloat(value: unknown): number { |
73d09045 | 73 | let changedValue: number = value as number; |
72766a82 | 74 | if (!value) { |
7dde0b73 JB |
75 | return 0; |
76 | } | |
77 | // Check | |
087a502d | 78 | if (Utils.isString(value)) { |
7dde0b73 | 79 | // Create Object |
73d09045 | 80 | changedValue = parseFloat(value as string); |
7dde0b73 | 81 | } |
72766a82 | 82 | return changedValue; |
7dde0b73 JB |
83 | } |
84 | ||
0f16a662 | 85 | public static convertToBoolean(value: unknown): boolean { |
a6e68f34 JB |
86 | let result = false; |
87 | // Check boolean | |
88 | if (value) { | |
89 | // Check the type | |
90 | if (typeof value === 'boolean') { | |
91 | // Already a boolean | |
92 | result = value; | |
93 | } else { | |
94 | // Convert | |
95 | result = (value === 'true'); | |
96 | } | |
97 | } | |
98 | return result; | |
99 | } | |
100 | ||
fd00fa2e JB |
101 | public static getRandomFloat(max: number, min = 0, negative = false): number { |
102 | const randomPositiveFloat = crypto.randomBytes(4).readUInt32LE() / 0xffffffff; | |
103 | const sign = (negative && randomPositiveFloat < 0.5) ? 1 : -1; | |
104 | return sign * (randomPositiveFloat * (max - min) + min); | |
560bcf5b JB |
105 | } |
106 | ||
0f16a662 | 107 | public static getRandomInt(max: number, min = 0): number { |
fd00fa2e | 108 | max = Math.floor(max); |
7dde0b73 | 109 | if (min) { |
fd00fa2e | 110 | min = Math.ceil(min); |
c37528f1 | 111 | return Math.floor(Utils.secureRandom() * (max - min + 1)) + min; |
7dde0b73 | 112 | } |
c37528f1 | 113 | return Math.floor(Utils.secureRandom() * (max + 1)); |
560bcf5b JB |
114 | } |
115 | ||
0f16a662 | 116 | public static roundTo(numberValue: number, scale: number): number { |
ad3de6c4 | 117 | const roundPower = Math.pow(10, scale); |
035742f7 | 118 | return Math.round(numberValue * roundPower) / roundPower; |
560bcf5b JB |
119 | } |
120 | ||
0f16a662 | 121 | public static truncTo(numberValue: number, scale: number): number { |
6d3a11a0 | 122 | const truncPower = Math.pow(10, scale); |
035742f7 | 123 | return Math.trunc(numberValue * truncPower) / truncPower; |
6d3a11a0 JB |
124 | } |
125 | ||
0f16a662 | 126 | public static getRandomFloatRounded(max: number, min = 0, scale = 2): number { |
560bcf5b JB |
127 | if (min) { |
128 | return Utils.roundTo(Utils.getRandomFloat(max, min), scale); | |
129 | } | |
130 | return Utils.roundTo(Utils.getRandomFloat(max), scale); | |
7dde0b73 JB |
131 | } |
132 | ||
0f16a662 | 133 | public static getRandomFloatFluctuatedRounded(staticValue: number, fluctuationPercent: number, scale = 2): number { |
9ccca265 JB |
134 | if (fluctuationPercent === 0) { |
135 | return Utils.roundTo(staticValue, scale); | |
136 | } | |
97ef739c JB |
137 | const fluctuationRatio = fluctuationPercent / 100; |
138 | return Utils.getRandomFloatRounded(staticValue * (1 + fluctuationRatio), staticValue * (1 - fluctuationRatio), scale); | |
9ccca265 JB |
139 | } |
140 | ||
0f16a662 | 141 | public static cloneObject<T>(object: T): T { |
e56aa9a4 | 142 | return JSON.parse(JSON.stringify(object)) as T; |
2e6f5966 | 143 | } |
facd8ebd | 144 | |
0f16a662 | 145 | public static isIterable<T>(obj: T): boolean { |
67e9cccf JB |
146 | if (obj) { |
147 | return typeof obj[Symbol.iterator] === 'function'; | |
148 | } | |
149 | return false; | |
150 | } | |
151 | ||
0f16a662 | 152 | public static isEmptyJSon(document: unknown): boolean { |
67e9cccf JB |
153 | // Empty? |
154 | if (!document) { | |
155 | return true; | |
156 | } | |
157 | // Check type | |
158 | if (typeof document !== 'object') { | |
159 | return true; | |
160 | } | |
161 | // Check | |
162 | return Object.keys(document).length === 0; | |
163 | } | |
164 | ||
0f16a662 | 165 | public static isString(value: unknown): boolean { |
560bcf5b JB |
166 | return typeof value === 'string'; |
167 | } | |
168 | ||
0f16a662 | 169 | public static isUndefined(value: unknown): boolean { |
ead548f2 JB |
170 | return typeof value === 'undefined'; |
171 | } | |
172 | ||
0f16a662 | 173 | public static isNullOrUndefined(value: unknown): boolean { |
32a1eb7a | 174 | // eslint-disable-next-line no-eq-null, eqeqeq |
ead548f2 | 175 | if (value == null) { |
facd8ebd JB |
176 | return true; |
177 | } | |
178 | return false; | |
179 | } | |
4a56deef | 180 | |
0f16a662 | 181 | public static isEmptyArray(object: unknown): boolean { |
fd1ee77c JB |
182 | if (!object) { |
183 | return true; | |
184 | } | |
4a56deef JB |
185 | if (Array.isArray(object) && object.length > 0) { |
186 | return false; | |
187 | } | |
188 | return true; | |
189 | } | |
7abfea5f | 190 | |
0f16a662 | 191 | public static isEmptyObject(obj: Record<string, unknown>): boolean { |
7abfea5f JB |
192 | return !Object.keys(obj).length; |
193 | } | |
7ec46a9a | 194 | |
0f16a662 | 195 | public static insertAt = (str: string, subStr: string, pos: number): string => `${str.slice(0, pos)}${subStr}${str.slice(pos)}`; |
032d6efc JB |
196 | |
197 | /** | |
81797102 JB |
198 | * @param [retryNumber=0] |
199 | * @returns delay in milliseconds | |
032d6efc | 200 | */ |
0f16a662 | 201 | public static exponentialDelay(retryNumber = 0): number { |
032d6efc | 202 | const delay = Math.pow(2, retryNumber) * 100; |
c37528f1 | 203 | const randomSum = delay * 0.2 * Utils.secureRandom(); // 0-20% of the delay |
032d6efc JB |
204 | return delay + randomSum; |
205 | } | |
32a1eb7a | 206 | |
e71cccf3 JB |
207 | /** |
208 | * Convert websocket error code to human readable string message | |
209 | * | |
81797102 JB |
210 | * @param code websocket error code |
211 | * @returns human readable string message | |
e71cccf3 | 212 | */ |
0f16a662 | 213 | public static getWebSocketCloseEventStatusString(code: number): string { |
32a1eb7a JB |
214 | if (code >= 0 && code <= 999) { |
215 | return '(Unused)'; | |
216 | } else if (code >= 1016) { | |
217 | if (code <= 1999) { | |
218 | return '(For WebSocket standard)'; | |
219 | } else if (code <= 2999) { | |
220 | return '(For WebSocket extensions)'; | |
221 | } else if (code <= 3999) { | |
222 | return '(For libraries and frameworks)'; | |
223 | } else if (code <= 4999) { | |
224 | return '(For applications)'; | |
225 | } | |
226 | } | |
227 | if (!Utils.isUndefined(WebSocketCloseEventStatusString[code])) { | |
17991e8c | 228 | return WebSocketCloseEventStatusString[code] as string; |
32a1eb7a JB |
229 | } |
230 | return '(Unknown)'; | |
231 | } | |
a4624c96 | 232 | |
0f16a662 | 233 | public static workerPoolInUse(): boolean { |
9ab7950c | 234 | return [WorkerProcessType.DYNAMIC_POOL, WorkerProcessType.STATIC_POOL].includes(Configuration.getWorkerProcess()); |
a4624c96 | 235 | } |
059f35a5 | 236 | |
0f16a662 | 237 | public static workerDynamicPoolInUse(): boolean { |
059f35a5 JB |
238 | return Configuration.getWorkerProcess() === WorkerProcessType.DYNAMIC_POOL; |
239 | } | |
c37528f1 JB |
240 | |
241 | /** | |
0f16a662 | 242 | * Generate a cryptographically secure random number in the [0,1[ range |
c37528f1 JB |
243 | * |
244 | * @returns | |
245 | */ | |
0f16a662 | 246 | public static secureRandom(): number { |
c37528f1 JB |
247 | return crypto.randomBytes(4).readUInt32LE() / 0x100000000; |
248 | } | |
7dde0b73 | 249 | } |