X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils%2FUtils.ts;h=2dff293af5f31479f5c8fde2f6cc43b3b84dc346;hb=9d73266c8bb85d7e2bc1fab9954a76910fd689eb;hp=f6565cc53c3f1cbaeef542d36f6ced8d247cce55;hpb=d10397af9d19f1607a187c749eefd160c9ef7392;p=e-mobility-charging-stations-simulator.git

diff --git a/src/utils/Utils.ts b/src/utils/Utils.ts
index f6565cc5..2dff293a 100644
--- a/src/utils/Utils.ts
+++ b/src/utils/Utils.ts
@@ -1,10 +1,14 @@
-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;
   }
@@ -14,17 +18,17 @@ export default class Utils {
   }
 
   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);
-    let hoursStr: string = hours.toString();
-    let minutesStr: string = minutes.toString();
-    let secondsStr: string = seconds.toString();
+    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();
 
     if (hours < 10) {
       hoursStr = '0' + hours.toString();
@@ -33,31 +37,15 @@ export default class Utils {
       minutesStr = '0' + minutes.toString();
     }
     if (seconds < 10) {
-      secondsStr = ('0' + seconds.toString()).substring(0, 6);
+      secondsStr = '0' + seconds.toString();
     }
-    return hoursStr + ':' + minutesStr + ':' + secondsStr;
+    return hoursStr + ':' + minutesStr + ':' + secondsStr.substring(0, 6);
   }
 
   public static formatDurationSeconds(duration: number): string {
     return Utils.formatDurationMilliSeconds(duration * 1000);
   }
 
-  public static removeExtraEmptyLines(tab: string[]): void {
-    // Start from the end
-    for (let i = tab.length - 1; i > 0; i--) {
-      // Two consecutive empty lines?
-      if (tab[i].length === 0 && tab[i - 1].length === 0) {
-        // Remove the last one
-        tab.splice(i, 1);
-      }
-      // Check last line
-      if (i === 1 && tab[i - 1].length === 0) {
-        // Remove the first one
-        tab.splice(i - 1, 1);
-      }
-    }
-  }
-
   public static convertToDate(value: unknown): Date {
     // Check
     if (!value) {
@@ -109,21 +97,30 @@ 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) {
+      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 {
+  public static getRandomInteger(max: number, min = 0): number {
+    if (max < 0) {
+      throw new RangeError('Invalid interval');
+    }
     max = Math.floor(max);
     if (min) {
+      if (max < min || min < 0) {
+        throw new RangeError('Invalid interval');
+      }
       min = Math.ceil(min);
       return Math.floor(Utils.secureRandom() * (max - min + 1)) + min;
     }
@@ -147,12 +144,20 @@ export default class Utils {
     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 {
@@ -160,39 +165,24 @@ export default class Utils {
   }
 
   public static isIterable<T>(obj: T): boolean {
-    if (obj) {
-      return typeof obj[Symbol.iterator] === 'function';
-    }
-    return false;
-  }
-
-  public static isEmptyJSon(document: unknown): boolean {
-    // Empty?
-    if (!document) {
-      return true;
-    }
-    // Check type
-    if (typeof document !== 'object') {
-      return true;
-    }
-    // Check
-    return Object.keys(document).length === 0;
+    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).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 {
@@ -205,11 +195,12 @@ export default class Utils {
     return true;
   }
 
-  public static isEmptyObject(obj: Record<string, unknown>): boolean {
+  public static isEmptyObject(obj: object): boolean {
     return !Object.keys(obj).length;
   }
 
-  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]
@@ -221,6 +212,54 @@ 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
    *
@@ -246,21 +285,4 @@ 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;
-  }
 }