feat: add edit center action (#1222)

Fixes: #1221

src/app/centers/common-resolvers/center-data-and-template.resolver.ts

@@ -0,0 +1,31 @@
+/** Angular Imports */
+import { Injectable } from '@angular/core';
+import { Resolve, ActivatedRouteSnapshot } from '@angular/router';
+
+/** rxjs Imports */
+import { Observable } from 'rxjs';
+
+/** Custom Services */
+import { CentersService } from '../centers.service';
+
+/**
+ * Centers data and template resolver.
+ */
+@Injectable()
+export class CenterDataAndTemplateResolver implements Resolve<Object> {
+
+    /**
+     * @param {CentersService} CentersService Centers service.
+     */
+    constructor(private centersService: CentersService) { }
+
+    /**
+     * Returns the Centers and template data.
+     * @returns {Observable<any>}
+     */
+    resolve(route: ActivatedRouteSnapshot): Observable<any> {
+        const centerId = route.parent.paramMap.get('centerId');
+        return this.centersService.getCenterAndTemplateData(centerId);
+    }
+
+}