add label paginator

src/app/services/i18n.service.ts

@@ -1,6 +1,8 @@
 import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 import { environment } from '../../environments/environment';
+import { MatPaginatorIntl } from '@angular/material/paginator';
+import { Subject } from 'rxjs';
 
 @Injectable({
     providedIn: 'root',
@@ -96,10 +98,48 @@ export class I18nService {
     insertArguments(label: string, args: string[]) {
         if (args) {
             for (let index in args) {
-                label = label.replace(`{${index}}`, this.get(args[ index ], []));
+                label = label.replace(`{${index}}`, this.get(args[ index ], null));
             }
         }
         return label;
     }
 
+}
+
+
+@Injectable()
+export class I18nPaginatorIntl implements MatPaginatorIntl {
+
+    changes = new Subject<void>();
+
+    i18n: I18nService;
+
+    itemsPerPageLabel: string;
+    nextPageLabel: string;
+    previousPageLabel: string;
+    firstPageLabel: string;
+    lastPageLabel: string;
+
+
+    injectI18n(i18n: I18nService) {
+        this.i18n = i18n;
+
+        this.firstPageLabel = this.i18n.get('paginator.firstPage', []);
+        this.itemsPerPageLabel = this.i18n.get('paginator.itemsPerPage', []);
+        this.lastPageLabel = this.i18n.get('paginator.lastPage', []);
+
+        this.nextPageLabel = this.i18n.get('paginator.nextPage', []);
+        this.previousPageLabel = this.i18n.get('paginator.previousPage', []);
+
+    }
+
+
+    getRangeLabel(page: number, pageSize: number, length: number): string {
+        if (length === 0) {
+            return this.i18n.get('paginator.empty', []);
+        }
+
+        const amountPages = Math.ceil(length / pageSize);
+        return this.i18n.get('paginator.range', [ page + 1 + "", amountPages + "" ]);
+    }
 }