fix: add openingHours config and catch its errors

package.json

@@ -89,7 +89,7 @@
     "ngx-logger": "4.1.9",
     "ngx-markdown": "9.1.1",
     "ngx-moment": "5.0.0",
-    "opening_hours": "3.6.0",
+    "opening_hours": "3.7.0",
     "rxjs": "6.6.3",
     "tslib": "1.14.1",
     "zone.js": "0.11.4"

src/app/translation/common-string-pipes.ts

@@ -20,7 +20,7 @@ import {Subscription} from 'rxjs';
 import {logger} from '../_helpers/ts-logger';
 
 // eslint-disable-next-line @typescript-eslint/no-var-requires, unicorn/prefer-module
-const openingHoursFn = require('opening_hours');
+const ohFunction = require('opening_hours');
 
 @Injectable()
 @Pipe({
@@ -96,7 +96,7 @@ export class StringSplitPipe implements PipeTransform {
 @Injectable()
 @Pipe({
   name: 'openingHours',
-  pure: false,
+  pure: true,
 })
 export class OpeningHoursPipe implements PipeTransform, OnDestroy {
   locale: string;
@@ -140,10 +140,20 @@ export class OpeningHoursPipe implements PipeTransform, OnDestroy {
 
       return;
     }
-    const openingHours = new openingHoursFn(aString);
+    let openingHours;
 
-    if ((openingHours.getWarnings() as string[]).length > 0) {
-      logger.warn((openingHours.getWarnings() as string[]).join('. '));
+    try {
+      openingHours = new ohFunction(aString, {
+        address: {
+          country_code: 'de',
+          state: 'Hessen',
+        },
+        lon: 8.667_97,
+        lat: 50.129_16,
+      });
+    } catch (error) {
+      logger.warn(error);
+      this.value = '';
 
       return;
     }