Added missing file handler option (#4)

Author: bameyrick

packages/ng-lazy-translate/README.md

@@ -55,6 +55,8 @@ export const appConfig: ApplicationConfig = {
         'fr.common': 'asset/i18n/fr/common.json',
       },
       missingTranslationHandler: (language: string, key: string) => console.error(`Custom handler: Could not find ${key} in ${language}`),
+      missingFileHandler: (namespace: string, language: string) =>
+        console.error(`Custom handler: CFile with namespace ${namespace} not found for language ${language}`),
     }),
   ],
 };
@@ -136,14 +138,15 @@ export class MyService {
 
 Whether you use the standalone components or the module, the LazyTranslateModuleConfig options are the same.
 
-| Option                    | Type                                            | Description                                                                                                  | Mandatory | Default                      |
-| ------------------------- | ----------------------------------------------- | ------------------------------------------------------------------------------------------------------------ | --------- | ---------------------------- |
-| defaultLanguage           | string                                          | The default language to use if no language is specified                                                      | Yes       | N/A                          |
-| languages                 | [Language[]](#language)                         | The list of languages to support                                                                             | Yes       | N/A                          |
-| translationAssetPaths     | [TranslationAssetPaths](#translationassetpaths) | The list of translation assets to load. The key is the language and the translation file name.               | Yes       | N/A                          |
-| useDefaultLanguage        | boolean                                         | Whether to use the default language if the specified language is not found                                   | No        | `true`                       |
-| enableLogging             | boolean                                         | Whether to enable logging of missing translations                                                            | No        | `true`                       |
-| missingTranslationHandler | (language: string, key: string) => void         | A custom handler to use when a translation is not found. If not specified, the default handler will be used. | No        | Will console.error a message |
+| Option                    | Type                                            | Description                                                                                                       | Mandatory | Default                      |
+| ------------------------- | ----------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- | --------- | ---------------------------- |
+| defaultLanguage           | string                                          | The default language to use if no language is specified                                                           | Yes       | N/A                          |
+| languages                 | [Language[]](#language)                         | The list of languages to support                                                                                  | Yes       | N/A                          |
+| translationAssetPaths     | [TranslationAssetPaths](#translationassetpaths) | The list of translation assets to load. The key is the language and the translation file name.                    | Yes       | N/A                          |
+| useDefaultLanguage        | boolean                                         | Whether to use the default language if the specified language is not found                                        | No        | `true`                       |
+| enableLogging             | boolean                                         | Whether to enable logging of missing translations                                                                 | No        | `true`                       |
+| missingTranslationHandler | (language: string, key: string) => void         | A custom handler to use when a translation is not found. If not specified, the default handler will be used.      | No        | Will console.error a message |
+| missingFileHandler        | (namespace: string, language: string) => void   | A custom handler to use when a translation file is not found. If not specified, the default handler will be used. | No        | Will console.error a message |
 
 ## Language
 

packages/ng-lazy-translate/src/lib/models/index.ts

@@ -1,3 +1,4 @@
 export * from './language.model';
+export * from './missing-file-handler-fn.model';
 export * from './translate-module-config.model';
 export * from './translation-asset-paths.model';

packages/ng-lazy-translate/src/lib/models/missing-file-handler-fn.model.ts

@@ -0,0 +1 @@
+export type MissingFileHandlerFn = (namespace: string, language: string) => void;

packages/ng-lazy-translate/src/lib/models/translate-module-config.model.ts

@@ -1,5 +1,6 @@
 import { MissingTranslationHandlerFn } from '@qntm-code/translation-key-store';
 import { Language } from './language.model';
+import { MissingFileHandlerFn } from './missing-file-handler-fn.model';
 import { TranslationAssetPaths } from './translation-asset-paths.model';
 
 export interface LazyTranslateModuleConfig {
@@ -9,4 +10,5 @@ export interface LazyTranslateModuleConfig {
   useDefaultLanguage?: boolean;
   enableLogging?: boolean;
   missingTranslationHandler?: MissingTranslationHandlerFn;
+  missingFileHandler?: MissingFileHandlerFn;
 }

packages/ng-lazy-translate/src/lib/translate.service.ts

@@ -167,8 +167,12 @@ export class LazyTranslateService {
   private downloadFile(language: string, namespace: string): Observable<Record<string, unknown> | undefined> {
     const path = this.config.translationAssetPaths[`${language}.${namespace}`];
 
-    if (!path && this.config.enableLogging) {
-      console.error(`File with namespace ${namespace} not found for language ${language}`);
+    if (!path) {
+      if (this.config.missingFileHandler) {
+        this.config.missingFileHandler(namespace, language);
+      } else if (this.config.enableLogging) {
+        console.error(`File with namespace ${namespace} not found for language ${language}`);
+      }
     }
 
     let observable = this.downloadedRequests[path];