feat: Migrate Logger to Typescript (#1120) SDKE-605

src/batchUploader.ts

@@ -257,15 +257,15 @@ export class BatchUploader {
             return;
         }
 
-        const { verbose } = this.mpInstance.Logger;
+        const { Logger } = this.mpInstance;
 
         this.eventsQueuedForProcessing.push(event);
         if (this.offlineStorageEnabled && this.eventVault) {
             this.eventVault.store(this.eventsQueuedForProcessing);
         }
 
-        verbose(`Queuing event: ${JSON.stringify(event)}`);
-        verbose(`Queued event count: ${this.eventsQueuedForProcessing.length}`);
+        Logger.verbose(`Queuing event: ${JSON.stringify(event)}`);
+        Logger.verbose(`Queued event count: ${this.eventsQueuedForProcessing.length}`);
 
         if (this.shouldTriggerImmediateUpload(event.EventDataType)) {
             this.prepareAndUpload(false, false);

src/identityApiClient.ts

@@ -88,12 +88,12 @@ export default function IdentityAPIClient(
         aliasRequest: IAliasRequest,
         aliasCallback: IAliasCallback
     ) {
-        const { verbose, error } = mpInstance.Logger;
+        const { Logger } = mpInstance;
         const { invokeAliasCallback } = mpInstance._Helpers;
         const { aliasUrl } = mpInstance._Store.SDKConfig;
         const { devToken: apiKey } = mpInstance._Store;
 
-        verbose(Messages.InformationMessages.SendAliasHttp);
+        Logger.verbose(Messages.InformationMessages.SendAliasHttp);
 
         // https://go.mparticle.com/work/SQDSDKS-6750
         const uploadUrl = `https://${aliasUrl}${apiKey}/Alias`;
@@ -136,7 +136,7 @@ export default function IdentityAPIClient(
                         try {
                             aliasResponseBody = await response.json();
                         } catch (e) {
-                            verbose('The request has no response body');
+                            Logger.verbose('The request has no response body');
                         }
                     } else {
                         // https://go.mparticle.com/work/SQDSDKS-6568
@@ -171,11 +171,11 @@ export default function IdentityAPIClient(
 
             }
 
-            verbose(message);
+            Logger.verbose(message);
             invokeAliasCallback(aliasCallback, response.status, errorMessage);
         } catch (e) {
             const errorMessage = (e as Error).message || e.toString();
-            error('Error sending alias request to mParticle servers. ' + errorMessage);
+            Logger.error('Error sending alias request to mParticle servers. ' + errorMessage);
             invokeAliasCallback(
                 aliasCallback,
                 HTTPCodes.noHttpCoverage,
@@ -193,15 +193,14 @@ export default function IdentityAPIClient(
         mpid: MPID,
         knownIdentities: UserIdentities
     ) {
-        const { verbose, error } = mpInstance.Logger;
         const { invokeCallback } = mpInstance._Helpers;
-
-        verbose(Messages.InformationMessages.SendIdentityBegin);
+        const { Logger } = mpInstance;
+        Logger.verbose(Messages.InformationMessages.SendIdentityBegin);
         if (!identityApiRequest) {
-            error(Messages.ErrorMessages.APIRequestEmpty);
+            Logger.error(Messages.ErrorMessages.APIRequestEmpty);
             return;
         }
-        verbose(Messages.InformationMessages.SendIdentityHttp);
+        Logger.verbose(Messages.InformationMessages.SendIdentityHttp);
 
         if (mpInstance._Store.identityCallInFlight) {
             invokeCallback(
@@ -289,7 +288,7 @@ export default function IdentityAPIClient(
 
             mpInstance._Store.identityCallInFlight = false;
 
-            verbose(message);
+            Logger.verbose(message);
             parseIdentityResponse(
                 identityResponse,
                 previousMPID,
@@ -304,7 +303,7 @@ export default function IdentityAPIClient(
 
             const errorMessage = (err as Error).message || err.toString();
 
-            error('Error sending identity request to servers' + ' - ' + errorMessage);
+            Logger.error('Error sending identity request to servers' + ' - ' + errorMessage);
             invokeCallback(
                 callback,
                 HTTPCodes.noHttpCoverage,

src/logger.ts

@@ -0,0 +1,66 @@
+import { LogLevelType, SDKInitConfig, SDKLoggerApi } from './sdkRuntimeModels';
+
+export type ILoggerConfig = Pick<SDKInitConfig, 'logLevel' | 'logger'>;
+export type IConsoleLogger = Partial<Pick<SDKLoggerApi, 'error' | 'warning' | 'verbose'>>;
+
+export class Logger {
+    private logLevel: LogLevelType;
+    private logger: IConsoleLogger;
+
+    constructor(config: ILoggerConfig) {
+        this.logLevel = config.logLevel ?? LogLevelType.Warning;
+        this.logger = config.logger ?? new ConsoleLogger();
+    }
+
+    public verbose(msg: string): void {
+        if(this.logLevel === LogLevelType.None) 
+            return;
+
+        if (this.logger.verbose && this.logLevel === LogLevelType.Verbose) {
+            this.logger.verbose(msg);
+        }
+    }
+
+    public warning(msg: string): void {
+        if(this.logLevel === LogLevelType.None) 
+            return;
+
+        if (this.logger.warning && 
+            (this.logLevel === LogLevelType.Verbose || this.logLevel === LogLevelType.Warning)) {
+            this.logger.warning(msg);
+        }
+    }
+
+    public error(msg: string): void {
+        if(this.logLevel === LogLevelType.None) 
+            return;
+
+        if (this.logger.error) {
+            this.logger.error(msg);
+        }
+    }
+
+    public setLogLevel(newLogLevel: LogLevelType): void {
+        this.logLevel = newLogLevel;
+    }
+}
+
+export class ConsoleLogger implements IConsoleLogger {
+    public verbose(msg: string): void {
+        if (console && console.info) {
+            console.info(msg);
+        }
+    }
+
+    public error(msg: string): void {
+        if (console && console.error) {
+            console.error(msg);
+        }
+    }
+
+    public warning(msg: string): void {
+        if (console && console.warn) {
+            console.warn(msg);
+        }
+    }
+}

src/mp-instance.ts

@@ -25,7 +25,7 @@ import CookieSyncManager, { ICookieSyncManager } from './cookieSyncManager';
 import SessionManager, { ISessionManager } from './sessionManager';
 import Ecommerce from './ecommerce';
 import Store, { IStore } from './store';
-import Logger from './logger';
+import { Logger } from './logger';
 import Persistence from './persistence';
 import Events from './events';
 import Forwarders from './forwarders';
@@ -227,6 +227,7 @@ export default function mParticleInstance(this: IMParticleWebSDKInstance, instan
         if (instance._Store) {
             delete instance._Store;
         }
+        instance.Logger = new Logger(config);
         instance._Store = new Store(config, instance);
         instance._Store.isLocalStorageAvailable = instance._Persistence.determineLocalStorageAvailability(
             window.localStorage

src/sdkRuntimeModels.ts

@@ -40,6 +40,7 @@ import {  SDKECommerceAPI } from './ecommerce.interfaces';
 import { IErrorLogMessage, IMParticleWebSDKInstance, IntegrationDelays } from './mp-instance';
 import Constants from './constants';
 import RoktManager, { IRoktLauncherOptions } from './roktManager';
+import { IConsoleLogger } from './logger';
 
 // TODO: Resolve this with version in @mparticle/web-sdk
 export type SDKEventCustomFlags = Dictionary<any>;
@@ -259,7 +260,13 @@ export interface IMParticleInstanceManager extends MParticleWebSDK {
 export type BooleanStringLowerCase = 'false' | 'true';
 export type BooleanStringTitleCase = 'False' | 'True';
 
-export type LogLevelType = 'none' | 'verbose' | 'warning' | 'error';
+export type LogLevelType = (typeof LogLevelType)[keyof typeof LogLevelType];
+export const LogLevelType = {
+    None: 'none',
+    Verbose: 'verbose',
+    Warning: 'warning',
+    Error: 'error',
+} as const;
 
 // TODO: This should eventually be moved into wherever init logic lives
 // TODO: Replace/Merge this with MPConfiguration in @types/mparticle__web-sdk
@@ -306,6 +313,7 @@ export interface SDKInitConfig
     launcherOptions?: IRoktLauncherOptions;
 
     rq?: Function[] | any[];
+    logger?: IConsoleLogger;
 }
 
 export interface DataPlanConfig {