X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils%2FUtils.ts;h=bc957c24a497ce38e5d02da80b1e7d3931bdf027;hb=c2d3028f2593d516d2a4e0c8d2bb646f6052a392;hp=92373cf043ba2161426ae6066c3376ef53097af4;hpb=87f1fc2acc3bfc56decd07366b6dc9466b4e267e;p=e-mobility-charging-stations-simulator.git

diff --git a/src/utils/Utils.ts b/src/utils/Utils.ts
index 92373cf0..bc957c24 100644
--- a/src/utils/Utils.ts
+++ b/src/utils/Utils.ts
@@ -1,27 +1,35 @@
-import Configuration from './Configuration';
-import { WebSocketCloseEventStatusString } from '../types/WebSocket';
-import { WorkerProcessType } from '../types/Worker';
 import crypto from 'crypto';
-import { v4 as uuid } from 'uuid';
+
+import { WebSocketCloseEventStatusString } from '../types/WebSocket';
 
 export default class Utils {
+  private constructor() {
+    // This is intentional
+  }
+
   public static logPrefix(prefixString = ''): string {
     return new Date().toLocaleString() + prefixString;
   }
 
   public static generateUUID(): string {
-    return uuid();
+    return crypto.randomUUID();
+  }
+
+  public static validateUUID(uuid: string): boolean {
+    return /^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/.test(
+      uuid
+    );
   }
 
   public static async sleep(milliSeconds: number): Promise<NodeJS.Timeout> {
-    return new Promise((resolve) => setTimeout(resolve, milliSeconds));
+    return new Promise((resolve) => setTimeout(resolve as () => void, milliSeconds));
   }
 
   public static formatDurationMilliSeconds(duration: number): string {
     duration = Utils.convertToInt(duration);
     const hours = Math.floor(duration / (3600 * 1000));
-    const minutes = Math.floor((duration / 1000 - (hours * 3600)) / 60);
-    const seconds = duration / 1000 - (hours * 3600) - (minutes * 60);
+    const minutes = Math.floor((duration / 1000 - hours * 3600) / 60);
+    const seconds = duration / 1000 - hours * 3600 - minutes * 60;
     let hoursStr = hours.toString();
     let minutesStr = minutes.toString();
     let secondsStr = seconds.toString();
@@ -93,30 +101,27 @@ export default class Utils {
         result = value;
       } else {
         // Convert
-        result = (value === 'true');
+        result = value === 'true';
       }
     }
     return result;
   }
 
-  public static getRandomFloat(max: number, min = 0, negative = false): number {
-    if (max < min || min < 0 || max < 0) {
+  public static getRandomFloat(max = Number.MAX_VALUE, min = 0, negative = false): number {
+    if (max < min || max < 0 || min < 0) {
       throw new RangeError('Invalid interval');
     }
     const randomPositiveFloat = crypto.randomBytes(4).readUInt32LE() / 0xffffffff;
-    const sign = (negative && randomPositiveFloat < 0.5) ? -1 : 1;
+    const sign = negative && randomPositiveFloat < 0.5 ? -1 : 1;
     return sign * (randomPositiveFloat * (max - min) + min);
   }
 
-  public static getRandomInt(max: number, min = 0): number {
-    if (max < 0) {
+  public static getRandomInteger(max = Number.MAX_SAFE_INTEGER, min = 0): number {
+    if (max < min || max < 0 || min < 0) {
       throw new RangeError('Invalid interval');
     }
     max = Math.floor(max);
-    if (min) {
-      if (max < min || min < 0) {
-        throw new RangeError('Invalid interval');
-      }
+    if (!Utils.isNullOrUndefined(min) && min !== 0) {
       min = Math.ceil(min);
       return Math.floor(Utils.secureRandom() * (max - min + 1)) + min;
     }
@@ -133,19 +138,27 @@ export default class Utils {
     return Math.trunc(numberValue * truncPower) / truncPower;
   }
 
-  public static getRandomFloatRounded(max: number, min = 0, scale = 2): number {
+  public static getRandomFloatRounded(max = Number.MAX_VALUE, min = 0, scale = 2): number {
     if (min) {
       return Utils.roundTo(Utils.getRandomFloat(max, min), scale);
     }
     return Utils.roundTo(Utils.getRandomFloat(max), scale);
   }
 
-  public static getRandomFloatFluctuatedRounded(staticValue: number, fluctuationPercent: number, scale = 2): number {
+  public static getRandomFloatFluctuatedRounded(
+    staticValue: number,
+    fluctuationPercent: number,
+    scale = 2
+  ): number {
     if (fluctuationPercent === 0) {
       return Utils.roundTo(staticValue, scale);
     }
     const fluctuationRatio = fluctuationPercent / 100;
-    return Utils.getRandomFloatRounded(staticValue * (1 + fluctuationRatio), staticValue * (1 - fluctuationRatio), scale);
+    return Utils.getRandomFloatRounded(
+      staticValue * (1 + fluctuationRatio),
+      staticValue * (1 - fluctuationRatio),
+      scale
+    );
   }
 
   public static cloneObject<T>(object: T): T {
@@ -153,43 +166,50 @@ export default class Utils {
   }
 
   public static isIterable<T>(obj: T): boolean {
-    if (obj) {
-      return typeof obj[Symbol.iterator] === 'function';
-    }
-    return false;
+    return obj ? typeof obj[Symbol.iterator] === 'function' : false;
   }
 
   public static isString(value: unknown): boolean {
     return typeof value === 'string';
   }
 
+  public static isEmptyString(value: unknown): boolean {
+    return Utils.isString(value) && (value as string).trim().length === 0;
+  }
+
   public static isUndefined(value: unknown): boolean {
     return typeof value === 'undefined';
   }
 
   public static isNullOrUndefined(value: unknown): boolean {
-    // eslint-disable-next-line no-eq-null, eqeqeq
-    if (value == null) {
-      return true;
-    }
-    return false;
+    // eslint-disable-next-line eqeqeq, no-eq-null
+    return value == null ? true : false;
   }
 
   public static isEmptyArray(object: unknown): boolean {
-    if (!object) {
-      return true;
+    if (!Array.isArray(object)) {
+      return false;
     }
-    if (Array.isArray(object) && object.length > 0) {
+    if ((object as unknown[]).length > 0) {
       return false;
     }
     return true;
   }
 
-  public static isEmptyObject(obj: Record<string, unknown>): boolean {
-    return !Object.keys(obj).length;
+  public static isEmptyObject(obj: object): boolean {
+    if (obj?.constructor !== Object) {
+      return false;
+    }
+    // Iterates over the keys of an object, if
+    // any exist, return false.
+    for (const _ in obj) {
+      return false;
+    }
+    return true;
   }
 
-  public static insertAt = (str: string, subStr: string, pos: number): string => `${str.slice(0, pos)}${subStr}${str.slice(pos)}`;
+  public static insertAt = (str: string, subStr: string, pos: number): string =>
+    `${str.slice(0, pos)}${subStr}${str.slice(pos)}`;
 
   /**
    * @param [retryNumber=0]
@@ -201,6 +221,54 @@ export default class Utils {
     return delay + randomSum;
   }
 
+  public static async promiseWithTimeout<T>(
+    promise: Promise<T>,
+    timeoutMs: number,
+    timeoutError: Error,
+    timeoutCallback: () => void = () => {
+      /* This is intentional */
+    }
+  ): Promise<T> {
+    // Create a timeout promise that rejects in timeout milliseconds
+    const timeoutPromise = new Promise<never>((_, reject) => {
+      setTimeout(() => {
+        timeoutCallback();
+        reject(timeoutError);
+      }, timeoutMs);
+    });
+
+    // Returns a race between timeout promise and the passed promise
+    return Promise.race<T>([promise, timeoutPromise]);
+  }
+
+  /**
+   * Generate a cryptographically secure random number in the [0,1[ range
+   *
+   * @returns
+   */
+  public static secureRandom(): number {
+    return crypto.randomBytes(4).readUInt32LE() / 0x100000000;
+  }
+
+  public static JSONStringifyWithMapSupport(
+    obj: Record<string, unknown> | Record<string, unknown>[],
+    space?: number
+  ): string {
+    return JSON.stringify(
+      obj,
+      (key, value: Record<string, unknown>) => {
+        if (value instanceof Map) {
+          return {
+            dataType: 'Map',
+            value: [...value],
+          };
+        }
+        return value;
+      },
+      space
+    );
+  }
+
   /**
    * Convert websocket error code to human readable string message
    *
@@ -226,21 +294,4 @@ export default class Utils {
     }
     return '(Unknown)';
   }
-
-  public static workerPoolInUse(): boolean {
-    return [WorkerProcessType.DYNAMIC_POOL, WorkerProcessType.STATIC_POOL].includes(Configuration.getWorkerProcess());
-  }
-
-  public static workerDynamicPoolInUse(): boolean {
-    return Configuration.getWorkerProcess() === WorkerProcessType.DYNAMIC_POOL;
-  }
-
-  /**
-   * Generate a cryptographically secure random number in the [0,1[ range
-   *
-   * @returns
-   */
-  public static secureRandom(): number {
-    return crypto.randomBytes(4).readUInt32LE() / 0x100000000;
-  }
 }