/*!
 * @license
 * Copyright 2016 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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.
 */

import { Injectable } from '@angular/core';
import {
    AlfrescoApi,
    ContentApi,
    FavoritesApi,
    NodesApi,
    PeopleApi,
    RenditionsApi,
    SharedlinksApi,
    SitesApi,
    VersionsApi,
    ClassesApi,
    SearchApi,
    GroupsApi,
    MinimalNodeEntryEntity
} from 'alfresco-js-api';
import * as alfrescoApi from 'alfresco-js-api';
import { AppConfigService, AppConfigValues } from '../app-config/app-config.service';
import { StorageService } from './storage.service';
import { Subject } from 'rxjs';
import { OauthConfigModel } from '../models/oauth-config.model';

/* tslint:disable:adf-file-name */

@Injectable()
export class AlfrescoApiService {
    /**
     * Publish/subscribe to events related to node updates.
     */
    nodeUpdated = new Subject<MinimalNodeEntryEntity>();

    protected alfrescoApi: AlfrescoApi;

    getInstance(): AlfrescoApi {
        return this.alfrescoApi;
    }

    get taskApi(): alfrescoApi.TaskApi {
        return this.getInstance().activiti.taskApi;
    }

    get modelsApi(): alfrescoApi.ModelsApi {
        return this.getInstance().activiti.modelsApi;
    }

    get contentApi(): ContentApi {
        return this.getInstance().content;
    }

    get nodesApi(): NodesApi {
        return this.getInstance().nodes;
    }

    get renditionsApi(): RenditionsApi {
        return this.getInstance().core.renditionsApi;
    }

    get sharedLinksApi(): SharedlinksApi {
        return this.getInstance().core.sharedlinksApi;
    }

    get sitesApi(): SitesApi {
        return this.getInstance().core.sitesApi;
    }

    get favoritesApi(): FavoritesApi {
        return this.getInstance().core.favoritesApi;
    }

    get peopleApi(): PeopleApi {
        return this.getInstance().core.peopleApi;
    }

    get searchApi(): SearchApi {
        return this.getInstance().search.searchApi;
    }

    get versionsApi(): VersionsApi {
        return this.getInstance().core.versionsApi;
    }

    get classesApi(): ClassesApi {
        return this.getInstance().core.classesApi;
    }

    get groupsApi(): GroupsApi {
        return this.getInstance().core.groupsApi;
    }

    constructor(protected appConfig: AppConfigService,
                protected storage: StorageService) {
    }

    async load() {
        await this.appConfig.load().then(() => {
            this.initAlfrescoApi();
        });
    }

    async reset() {
        this.initAlfrescoApi();
    }

    protected initAlfrescoApi() {
        let oauth: OauthConfigModel = Object.assign({}, this.appConfig.get<OauthConfigModel>(AppConfigValues.OAUTHCONFIG, null));
        if (oauth) {
            oauth.redirectUri = window.location.origin + (oauth.redirectUri || '/');
            oauth.redirectUriLogout = window.location.origin + (oauth.redirectUriLogout || '/');
        }

        const config = {
            provider: this.getProvider(),
            hostEcm: this.appConfig.get<string>(AppConfigValues.ECMHOST),
            hostBpm: this.appConfig.get<string>(AppConfigValues.BPMHOST),
            authType: this.appConfig.get<string>(AppConfigValues.AUTHTYPE, 'BASIC'),
            contextRootBpm: this.appConfig.get<string>(AppConfigValues.CONTEXTROOTBPM),
            contextRoot: this.appConfig.get<string>(AppConfigValues.CONTEXTROOTECM),
            disableCsrf: this.getDisableCSRF(),
            oauth2: oauth
        };

        if (this.alfrescoApi) {
            this.alfrescoApi.configureJsApi(config);
        } else {
            this.alfrescoApi = <AlfrescoApi> new alfrescoApi(config);
        }
    }

    // @deprecated 3.0.0 get only from app config
    private getDisableCSRF(): boolean {
        if (this.storage.getItem(AppConfigValues.DISABLECSRF) === 'true') {
            return true;
        } else {
            return this.appConfig.get<boolean>(AppConfigValues.DISABLECSRF);
        }
    }

    // @deprecated 3.0.0 get only from app config
    private getProvider() {
        return this.storage.getItem(AppConfigValues.PROVIDERS) || this.appConfig.get<string>(AppConfigValues.PROVIDERS);
    }
}