use standard environments

src/config/config.util.ts

@@ -0,0 +1,37 @@
+import * as merge from 'deepmerge';
+
+import { environment } from '../environments/environment';
+
+import { hasNoValue } from '../app/shared/empty.util';
+
+import { AppConfig } from './app-config.interface';
+import { ThemeConfig } from './theme.model';
+
+const extendEnvironmentWithAppConfig = (env: any, appConfig: AppConfig): void => {
+  extendConfig(env, appConfig);
+  console.log(`Environment extended with app config`);
+};
+
+const extendConfig = (config: any, appConfig: AppConfig): void => {
+  const mergeOptions = {
+    arrayMerge: (destinationArray, sourceArray, options) => sourceArray
+  };
+  Object.assign(config, merge.all([
+    config,
+    appConfig
+  ], mergeOptions));
+};
+
+const getDefaultThemeConfig = (): ThemeConfig => {
+  return environment.themes.find((themeConfig: any) =>
+    hasNoValue(themeConfig.regex) &&
+    hasNoValue(themeConfig.handle) &&
+    hasNoValue(themeConfig.uuid)
+  );
+};
+
+export {
+  extendEnvironmentWithAppConfig,
+  extendConfig,
+  getDefaultThemeConfig
+};