feat: apply merge strategy on env

npm/ng-packs/packages/core/src/lib/utils/environment-utils.ts

@@ -5,6 +5,7 @@ import { catchError, switchMap } from 'rxjs/operators';
 import { SetEnvironment } from '../actions/config.actions';
 import { Config } from '../models/config';
 import { RestOccurError } from '../actions/rest.actions';
+import { deepMerge } from './object-utils';
 
 export function getRemoteEnv(injector: Injector, environment: Partial<Config.Environment>) {
   const { remoteEnv } = environment;
@@ -18,7 +19,22 @@ export function getRemoteEnv(injector: Injector, environment: Partial<Config.Env
     .request<Config.Environment>(method, url, { headers })
     .pipe(
       catchError(err => store.dispatch(new RestOccurError(err))), // TODO: Condiser get handle function from a provider
-      switchMap(env => store.dispatch(new SetEnvironment({ ...environment, ...env }))),
+      switchMap(env => store.dispatch(mergeEnvironments(environment, env, remoteEnv))),
     )
     .toPromise();
 }
+
+function mergeEnvironments(
+  local: Partial<Config.Environment>,
+  remote: any,
+  config: Config.RemoteEnv,
+) {
+  switch (config.mergeStrategy) {
+    case 'deepmerge':
+      return new SetEnvironment(deepMerge(local, remote));
+    case 'overwrite':
+      return new SetEnvironment(remote);
+    default:
+      return new SetEnvironment(config.mergeStrategy(local, remote));
+  }
+}