// tslint:disable
/*
 * Copyright 2017-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
 * the License. A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
 * and limitations under the License.
 */
// tslint:enable

import { Injectable, Optional, Inject } from '@angular/core';
import { Observable, Subject } from 'rxjs';
import Amplify, { Logger, I18n } from '@aws-amplify/core';
import { AuthState } from './auth.state';
import { authDecorator } from './auth.decorator';

import { Analytics } from '@aws-amplify/analytics';

import { Auth } from '@aws-amplify/auth';
import { Storage } from '@aws-amplify/storage';
import { API } from '@aws-amplify/api';
import { PubSub } from '@aws-amplify/pubsub';
import { Interactions } from '@aws-amplify/interactions';
import { XR } from '@aws-amplify/xr';

@Injectable()
export class AmplifyService {
	private _auth: any;
	private _analytics: any;
	private _storage: any;
	private _api: any;
	private _cache: any;
	private _pubsub: any;
	private _interactions: any;
	private _logger: any;
	private _xr: any;
	private _i18n: any;
	private _authState = new Subject<AuthState>();
	authStateChange$ = this._authState.asObservable();

	constructor(
		@Inject('modules')
		@Optional()
		private modules: any = {}
	) {
		const source = modules || Amplify;

		authDecorator(this._authState, source.Auth);

		this._auth = source.Auth;
		this._analytics = source.Analytics;
		this._storage = source.Storage;
		this._api = source.API;
		this._cache = source.Cache;
		this._pubsub = source.PubSub;
		this._interactions = source.Interactions;
		this._xr = source.XR;

		// i18n and logger instantiated by default (do not change)
		this._i18n = I18n;
		this._logger = Logger;
	}

	auth(): any {
		return this._auth || Auth;
	}
	analytics(): any {
		return this._analytics || Analytics;
	}
	storage(): any {
		return this._storage || Storage;
	}
	api(): any {
		return this._api || API;
	}
	interactions(): any {
		return this._interactions || Interactions;
	}
	cache(): any {
		return this._cache;
	}
	pubsub(): any {
		return this._pubsub || PubSub;
	}
	logger(name, level?): Logger {
		return new this._logger(name, level);
	}
	xr(): any {
		return this._xr || XR;
	}
	i18n(): any {
		return this._i18n;
	}

	authState() {
		return this._authState;
	}
	setAuthState(state: AuthState) {
		this._authState.next(state);
	}
}