add admin interface, angular migration

src/app/services/admin/permission.management.service.ts

@@ -0,0 +1,40 @@
+import { Injectable } from '@angular/core';
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { environment } from '../../../environments/environment';
+
+@Injectable({
+    providedIn: 'root',
+})
+export class PermissionManagementService {
+
+    constructor(private http: HttpClient) {
+    }
+
+    getPermissionsForUser(username: string, sort: string = 'name', ignoreStart: boolean = true) {
+        let params = new HttpParams()
+            .set('sort', sort)
+            .set('ignoreStart', ignoreStart.toString());
+        return this.http.get(environment.apiUrl + "/permissions/manage/" + username, { params });
+    }
+
+    getAllPermissionsForUser(username: string, sort: string = 'name') {
+        let params = new HttpParams().set('sort', sort);
+        return this.http.get(environment.apiUrl + "/permissions/manage/" + username + "/all", { params });
+    }
+
+    createPermission(permission: any) {
+        return this.http.post(environment.apiUrl + "/permissions/manage", permission);
+    }
+
+    createMultiple(permissionList: any[]) {
+        return this.http.post(environment.apiUrl + "/permissions/manage/multiple", permissionList);
+    }
+
+    updatePermission(permission: any) {
+        return this.http.patch(environment.apiUrl + "/permissions/manage", permission);
+    }
+
+    deletePermission(permission: any) {
+        return this.http.delete(environment.apiUrl + "/permissions/manage", { body: permission });
+    }
+}