feat(store): add, remove, get loaders

Author: rbalet

projects/ngx-translate/src/lib/translate.service.ts

@@ -227,7 +227,7 @@ export class TranslateService implements ITranslateService, OnDestroy {
     }
 
     constructor() {
-        this._addLoader();
+        this._loaderIndex = this.store.addLoader();
 
         const config: TranslateServiceConfig = {
             extend: false,
@@ -251,15 +251,8 @@ export class TranslateService implements ITranslateService, OnDestroy {
         }
     }
 
-    private _addLoader() {
-        while (this.store.loaders.has(this._loaderIndex)) {
-            this._loaderIndex++;
-        }
-        this.store.loaders.set(this._loaderIndex, this.currentLoader);
-    }
-
     ngOnDestroy() {
-        this.store.loaders.delete(this._loaderIndex);
+        this.store.removeLoader(this._loaderIndex);
     }
 
     /**

projects/ngx-translate/src/lib/translate.store.ts

@@ -1,4 +1,4 @@
-import { Injectable } from "@angular/core";
+import { inject, Injectable } from "@angular/core";
 import { Observable, Subject } from "rxjs";
 import { TranslateLoader } from "./translate.loader";
 import {
@@ -31,6 +31,31 @@ export class TranslateStore {
 
     loaders = new Map<number, TranslateLoader>();
 
+    /**
+     * Adds a new loader to the store
+     * @returns the index of the newly added loader
+     */
+    addLoader() {
+        let loaderIndex = 0;
+        while (this.loaders.has(loaderIndex)) {
+            loaderIndex++;
+        }
+        this.loaders.set(loaderIndex, inject(TranslateLoader));
+        return loaderIndex;
+    }
+
+    removeLoader(loaderIndex: number) {
+        if (this.loaders.has(loaderIndex)) this.loaders.delete(loaderIndex);
+    }
+
+    getLoaders() {
+        return this.loaders;
+    }
+
+    getLoader(loaderIndex: number) {
+        return this.loaders.get(loaderIndex);
+    }
+
     public getTranslations(language: Language): DeepReadonly<InterpolatableTranslationObject> {
         return this.translations[language];
     }