feat: create environment.service

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

@@ -0,0 +1,36 @@
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+import { map } from 'rxjs/operators';
+import { Apis, Environment } from '../models/environment';
+import { InternalStore } from '../utils/internal-store-utils';
+
+@Injectable({ providedIn: 'root' })
+export class EnvironmentService {
+  private readonly store = new InternalStore({} as Environment);
+
+  get onUpdate$() {
+    return this.store.sliceUpdate;
+  }
+
+  getEnvironment$(): Observable<Environment> {
+    return this.store.sliceState(state => state);
+  }
+
+  getEnvironment(): Environment {
+    return this.store.state;
+  }
+
+  getApiUrl(key?: string) {
+    return (this.store.state.apis[key || 'default'] || this.store.state.apis.default).url;
+  }
+
+  getApiUrl$(key?: string) {
+    return this.store
+      .sliceState(state => state.apis)
+      .pipe(map((apis: Apis) => (apis[key || 'default'] || apis.default).url));
+  }
+
+  setState(environment: Environment) {
+    this.store.patch(environment);
+  }
+}