src/app/utilities/show-vdu-console/ShowVduConsoleComponent.ts

/*
 Copyright 2020 TATA ELXSI

 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.

 Author: I.Lloret <illoret@minsait.com>
*/
/**
 * @file ShowVduConsoleComponent Component
 */
import { HttpHeaders } from '@angular/common/http';
import { Component, Injector, Input, OnInit } from '@angular/core';
import { AbstractControl, FormBuilder, FormGroup, Validators } from '@angular/forms';
import { Router } from '@angular/router';
import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
import { TranslateService } from '@ngx-translate/core';
import { NotifierService } from 'angular-notifier';
import { APIURLHEADER, ERRORDATA, MODALCLOSERESPONSEDATA, URLPARAMS } from 'CommonModel';
import { environment } from 'environment';
import { ShowVduConsole, OperateVnfResult } from 'NSInstanceModel';
import { RestService } from 'RestService';
import { SharedService, isNullOrUndefined } from 'SharedService';
import { DF, VNFD } from 'VNFDModel';
import { InstanceData, VDUR, VNFInstanceDetails } from 'VNFInstanceModel';

/**
 * Creating component
 * @Component takes ShowVduConsoleComponent.html as template url
 */
@Component({
    selector: 'app-show-vdu-console',
    templateUrl: './ShowVduConsoleComponent.html',
    styleUrls: ['./ShowVduConsoleComponent.scss']
})
export class ShowVduConsoleComponent implements OnInit {
    /** To inject services @public */
    public injector: Injector;
    /** Instance for active modal service @public */
    public activeModal: NgbActiveModal;
    /** Check the loading results @public */
    public isLoadingResults: Boolean = false;
    /** Give the message for the loading @public */
    public message: string = 'PLEASEWAIT';
    /** FormGroup instance added to the form @ html @public */
    public consoleForm: FormGroup;
    /** Items for the memberVNFIndex @public */
    public memberTypes: {}[];
    /** Contains MemberVNFIndex values @public */
    public memberVnfIndex: {}[] = [];
    /** Contains vnfInstanceId of the selected MemberVnfIndex  @public */
    public instanceId: string;
    /** Items for vduId & countIndex @public */
    public vdu: {}[];
    /** Selected VNFInstanceId @public */
    public selectedvnfId: string = '';
    /** Check day1-2 operation  @public */
    /** TODO - show remove this probably */
    public 'day1-2': boolean;
    /** Array holds VNFR Data filtered with nsr ID @public */
    public nsIdFilteredData: {}[] = [];
    /** Form valid on submit trigger @public */
    public submitted: boolean = false;
    /** Contains vduId @public */
    public vduId: {};
    /** Items for countIndex @public */
    public countIndex: {}[];
    /** Input contains component objects @private */
    @Input() private params: URLPARAMS;
    /** FormBuilder instance added to the formBuilder @private */
    private formBuilder: FormBuilder;
    /** Instance of the rest service @private */
    private restService: RestService;
    /** Notifier service to popup notification @private */
    private notifierService: NotifierService;
    /** Contains tranlsate instance @private */
    private translateService: TranslateService;
    /** Controls the header form @private */
    private headers: HttpHeaders;
    private consoleRequestStartTime: number;
    /** Contains all methods related to shared @private */
    private sharedService: SharedService;
    /** Holds the instance of AuthService class of type AuthService @private */
    private router: Router;
    constructor(injector: Injector) {
        this.injector = injector;
        this.restService = this.injector.get(RestService);
        this.notifierService = this.injector.get(NotifierService);
        this.translateService = this.injector.get(TranslateService);
        this.activeModal = this.injector.get(NgbActiveModal);
        this.formBuilder = this.injector.get(FormBuilder);
        this.sharedService = this.injector.get(SharedService);
        this.router = this.injector.get(Router);
    }
    /** convenience getter for easy access to form fields */
    get f(): FormGroup['controls'] { return this.consoleForm.controls; }
    /**
     * Lifecyle Hooks the trigger before component is instantiate
     */
    public ngOnInit(): void {
        this.initializeForm();
        this.getMemberVnfIndex();
        this.headers = new HttpHeaders({
            'Content-Type': 'application/json',
            Accept: 'application/json',
            'Cache-Control': 'no-cache, no-store, must-revalidate, max-age=0'
        });
    }
    /** Initialize start, stop or rebuild Forms @public */
    public initializeForm(): void {
        this.consoleForm = this.formBuilder.group({
            memberVnfIndex: [null, [Validators.required]],
            vduId: [null, [Validators.required]],
            countIndex: [null, [Validators.required]]
        });
    }

    /** Getting MemberVnfIndex using VNFInstances API @public */
    public getMemberVnfIndex(): void {
        this.isLoadingResults = true;
        const vnfInstanceData: {}[] = [];
        this.restService.getResource(environment.VNFINSTANCES_URL).subscribe((vnfInstancesData: VNFInstanceDetails[]): void => {
            vnfInstancesData.forEach((vnfData: VNFInstanceDetails): void => {
                const vnfdRef: string = 'vnfd-ref';
                const memberIndex: string = 'member-vnf-index-ref';
                const nsrId: string = 'nsr-id-ref';
                const vnfId: string = 'vnfd-id';
                const vnfDataObj: {} =
                {
                    // eslint-disable-next-line security/detect-object-injection
                    VNFD: vnfData[vnfdRef],
                    VNFInstanceId: vnfData._id,
                    // eslint-disable-next-line security/detect-object-injection
                    MemberIndex: vnfData[memberIndex],
                    // eslint-disable-next-line security/detect-object-injection
                    NS: vnfData[nsrId],
                    // eslint-disable-next-line security/detect-object-injection
                    VNFID: vnfData[vnfId]
                };
                vnfInstanceData.push(vnfDataObj);
            });
            const nsId: string = 'NS';
            // eslint-disable-next-line security/detect-object-injection
            this.nsIdFilteredData = vnfInstanceData.filter((vnfdData: {}[]): boolean => vnfdData[nsId] === this.params.id);
            this.nsIdFilteredData.forEach((resVNF: InstanceData): void => {
                const assignMemberIndex: {} = {
                    id: resVNF.MemberIndex,
                    vnfinstanceId: resVNF.VNFInstanceId
                };
                this.memberVnfIndex.push(assignMemberIndex);
            });
            this.memberTypes = this.memberVnfIndex;
            this.isLoadingResults = false;
        }, (error: ERRORDATA): void => {
            this.restService.handleError(error, 'get');
            this.isLoadingResults = false;
        });
    }

    /** Getting vdu-id & count-index from VNFInstance API */
    public getVdu(id: string): void {
        const vnfInstanceData: {}[] = [];
        this.getFormControl('vduId').setValue(null);
        this.getFormControl('countIndex').setValue(null);
        if (!isNullOrUndefined(id)) {
            this.restService.getResource(environment.VNFINSTANCES_URL + '/' + id).
                subscribe((vnfInstanceDetail: VNFInstanceDetails[]): void => {
                    this.instanceId = id;
                    this.selectedvnfId = vnfInstanceDetail['vnfd-ref'];
                    const VDU: string = 'vdur';
                    // eslint-disable-next-line security/detect-object-injection
                    if (vnfInstanceDetail[VDU] !== undefined) {
                        // eslint-disable-next-line security/detect-object-injection
                        vnfInstanceDetail[VDU].forEach((vdu: VDUR): void => {
                            const vnfInstanceDataObj: {} =
                            {
                                'count-index': vdu['count-index'],
                                VDU: vdu['vdu-id-ref']
                            };
                            vnfInstanceData.push(vnfInstanceDataObj);
                        });
                        this.vdu = vnfInstanceData;
                        const vduName: string = 'VDU';
                        this.vduId = this.vdu.filter((vdu: {}, index: number, self: {}[]): {} =>
                            index === self.findIndex((t: {}): {} => (
                                // eslint-disable-next-line security/detect-object-injection
                                t[vduName] === vdu[vduName]
                            ))
                        );
                    }
                    this.checkDay12Operation(this.selectedvnfId);
                }, (error: ERRORDATA): void => {
                    this.restService.handleError(error, 'get');
                    this.isLoadingResults = false;
                });
        }
    }

    /** Getting count-index by filtering id */
    public getCountIndex(id: string): void {
        const VDU: string = 'VDU';
        // eslint-disable-next-line security/detect-object-injection
        this.countIndex = this.vdu.filter((vnfdData: {}[]): boolean => vnfdData[VDU] === id);
    }

    /** To check primitve actions from VNFR  */
    public checkDay12Operation(id: string): void {
        const apiUrl: string = environment.VNFPACKAGES_URL + '?id=' + id;
        this.restService.getResource(apiUrl).subscribe((vnfdInfo: VNFD[]): void => {
            const vnfInstances: VNFD = vnfdInfo[0];
            if (!isNullOrUndefined(vnfInstances.df)) {
                vnfInstances.df.forEach((df: DF): void => {
                    if (df['lcm-operations-configuration'] !== undefined) {
                        if (df['lcm-operations-configuration']['operate-vnf-op-config']['day1-2'] !== undefined) {
                            this['day1-2'] = true;
                        }
                    } else {
                        this['day1-2'] = false;
                    }
                });
            }
        }, (error: ERRORDATA): void => {
            this.isLoadingResults = false;
            this.restService.handleError(error, 'get');
        });
    }

    /** Check and sends a request to get console */
    public prepareGetConsole(): void {
        this.submitted = true;
        this.sharedService.cleanForm(this.consoleForm);
        if (this.consoleForm.invalid) { return; } // Proceed, onces form is valid
        const prepareConsolePayload: ShowVduConsole = {
            updateType: 'OPERATE_VNF',
            operateVnfData: {
                vnfInstanceId: this.instanceId,
                changeStateTo: 'console',
                additionalParam: {
                    'run-day1': false,
                    vdu_id: this.consoleForm.value.vduId,
                    'count-index': this.consoleForm.value.countIndex
                }
            }
        };
        this.startGetConsole(prepareConsolePayload);
    }

    /** Initialize get console operation @public */
    public startGetConsole(prepareConsolePayload: object): void {
        this.message = 'LAUNCHINGCONSOLE';
        this.consoleRequestStartTime = Date.now();
        this.isLoadingResults = true;
        const apiURLHeader: APIURLHEADER = {
            url: environment.NSDINSTANCES_URL + '/' + this.params.id + '/update',
            httpOptions: { headers: this.headers }
        };
        const modalData: MODALCLOSERESPONSEDATA = {
            message: 'Done'
        };
        this.restService.postResource(apiURLHeader, prepareConsolePayload).subscribe((result: OperateVnfResult): void => {
            // Start waiting for the operation to complete
            this.waitOperationCompleted(result.id);
        }, (error: ERRORDATA): void => {
            this.restService.handleError(error, 'post');
            this.isLoadingResults = false;
        });
    }

    private waitOperationCompleted(operationId: string): void {
        let elapsedTime = 0;
        const interval = 3000; // 3 seconds interval between status checks
        const maxWaitTime = 2 * 60 * 1000; // 2 minutes in milliseconds

        // Set interval to periodically check if the operation is completed
        const checkInterval = setInterval(() => {
            if (elapsedTime >= maxWaitTime) {
                clearInterval(checkInterval); // Stop polling after 2 minutes
                this.notifierService.notify('error', this.translateService.instant('OPERATIONFAILED'));
                this.isLoadingResults = false;
                return;
            }

            this.getOperationStatus(operationId).subscribe((operationData: any) => {
                if (operationData && operationData.operationState === 'COMPLETED') {
                    clearInterval(checkInterval); // Stop polling when operation is completed
                    elapsedTime = (Date.now() - this.consoleRequestStartTime);
                    this.openVmrcConsole(operationData.operationResultData.url);
                    // Close the modal window now
                    const modalData: MODALCLOSERESPONSEDATA = {
                        message: 'Done'
                    };
                    this.activeModal.close(modalData);
                    this.router.navigate(['/instances/ns/']).catch((): void => {
                        // Catch Navigation Error
                    });
                } else if (operationData && operationData.operationState === 'FAILED') {
                    clearInterval(checkInterval); // Stop polling on error
                    this.notifierService.notify('error', this.translateService.instant('OPERATIONFAILED'));
                    this.isLoadingResults = false;
                }
            }, (error: ERRORDATA) => {
                clearInterval(checkInterval); // Stop polling on error
                this.restService.handleError(error, 'post');
                this.isLoadingResults = false;
            });
            elapsedTime += interval;
        }, interval);
    }

    /** obtain the status of the getconsole operation */
    private getOperationStatus(operationId: string) {
        const operationQueryUrl: string = environment.NSHISTORYOPERATIONS_URL + '/' + operationId;
        // Make GET request to check operation status
        return this.restService.getResource(operationQueryUrl);
    }

    private openVmrcConsole(vmrcUrl) {
        const link = document.createElement('a');
        link.href = vmrcUrl;
        link.style.display = 'none';
        document.body.appendChild(link);
        link.click();
        document.body.removeChild(link);
    }

    /** Used to get the AbstractControl of controlName passed @private */
    private getFormControl(controlName: string): AbstractControl {
        // eslint-disable-next-line security/detect-object-injection
        return this.consoleForm.controls[controlName];
    }
}