src/app/utilities/compose-packages/ComposePackages.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: KUMARAN M (kumaran.m@tataelxsi.co.in), RAJESH S (rajesh.s@tataelxsi.co.in), BARATH KUMAR R (barath.r@tataelxsi.co.in)
 */
/**
 * @file Info Compose Package Model
 */
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Component, ElementRef, Injector, Input, OnInit, ViewChild } 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 { DataService } from 'DataService';
import { environment } from 'environment';
import * as jsyaml from 'js-yaml';
import { NSConfigData } from 'NSCONFIGTEMPLATEMODEL';
import { NSDDetails } from 'NSDModel';
import * as pako from 'pako';
import { RestService } from 'RestService';
import { SharedService, isNullOrUndefined } from 'SharedService';

/** This is added globally by the tar.js library */
// eslint-disable-next-line @typescript-eslint/no-explicit-any
declare const Tar: any;

/**
 * Creating component
 * @Component takes ComposePackages.html as template url
 */
@Component({
  templateUrl: './ComposePackages.html',
  styleUrls: ['./ComposePackages.scss']
})
/** Exporting a class @exports ComposePackages */
// eslint-disable-next-line @angular-eslint/component-class-suffix
export class ComposePackages implements OnInit {
  /** Invoke service injectors @public */
  public injector: Injector;

  /** dataService to pass the data from one component to another @public */
  public dataService: DataService;

  /** Varaibles to hold http client @public */
  public httpClient: HttpClient;

  /** Instance for active modal service @public */
  public activeModal: NgbActiveModal;

  /** FormGroup instance added to the form @ html @public */
  public packagesForm: FormGroup;

  /** Form submission Add */
  public submitted = false;

  /** To handle loader status for API call @public */
  public isLoadingResults = false;

  /** Give the message for the loading @public */
  public message = 'PLEASEWAIT';

  /** contains NSD name @public */
  public nsName: {}[] = [];

  /** contains NSD details @public */
  public nsdDetails: {}[];

  /** contains NSD details filtered by id @public */
  public nsdName: string;

  /** Contains config details @public */
  public config: string;

  /** contains NSD details filtered by name @public */
  public nsId: string;

  /** Check if template or not @public */
  public template = false;

  /** Data of NS config @public */
  public details: NSConfigData;

  /** Data of NF packages @public */
  public nsConfigData: NSConfigData[] = [];

  /** Element ref for fileInputConfig @public */
  @ViewChild('fileInputConfig') fileInputConfig: ElementRef<HTMLInputElement>;

  /** Element ref for fileInputConfigLabel @public */
  @ViewChild('fileInputConfigLabel') fileInputConfigLabel: ElementRef<HTMLLabelElement>;

  /** 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;

  /** Controls the header form @private */
  private headers: HttpHeaders;

  /** Input contains component objects @public */
  @Input() public params: URLPARAMS;

  /** Holds the end point @private */
  private endPoint: string;

  /** ModalData instance of modal @private  */
  private modalData: MODALCLOSERESPONSEDATA;

  /** Contains all methods related to shared @private */
  private sharedService: SharedService;

  /** Holds teh instance of AuthService class of type AuthService @private */
  private router: Router;

  /** Contains tranlsate instance @private */
  private translateService: TranslateService;

  constructor(injector: Injector) {
    this.injector = injector;
    this.dataService = this.injector.get(DataService);
    this.restService = this.injector.get(RestService);
    this.activeModal = this.injector.get(NgbActiveModal);
    this.notifierService = this.injector.get(NotifierService);
    this.formBuilder = this.injector.get(FormBuilder);
    this.router = this.injector.get(Router);
    this.translateService = this.injector.get(TranslateService);
    this.sharedService = this.injector.get(SharedService);
  }

  /** convenience getter for easy access to form fields */
  get f(): FormGroup['controls'] { return this.packagesForm.controls; }

  /**
   * Lifecyle Hooks the trigger before component is instantiate
   */
  public ngOnInit(): void {
    this.initializeForm();
    if (this.params.page === 'ns-config-template') {
      this.template = true;
      this.getNsdPackageDetails();
    } else if (this.params.page === 'ns-config-template-edit') {
      this.template = true;
      this.getNsdPackageDetails();
      this.getFormControl('nsdId').disable();
    } else {
      this.getFormControl('nsdId').disable();
      this.getFormControl('config').disable();
    }
  }

  /** initialize Forms @public */
  public initializeForm(): void {
    this.packagesForm = this.formBuilder.group({
      name: ['', [Validators.required]],
      nsdId: [null, [Validators.required]],
      config: [null]
    });
  }

  /** Get NSD Package details @public */
  public getNsdPackageDetails(): void {
    this.restService.getResource(environment.NSDESCRIPTORSCONTENT_URL)
      .subscribe((nsdPackageData: NSDDetails[]): void => {
        nsdPackageData.forEach((nsData: NSDDetails): void => {
          const names: {} = {
            nsName: nsData.name,
            nsId: nsData._id
          };
          this.nsName.push(names);
        });
        this.nsdDetails = this.nsName;
        if (this.params.page === 'ns-config-template-edit') {
          this.getNSConfigDetails(environment.NSCONFIGTEMPLATE_URL + '/' + this.params.id, this.nsdDetails);
        }
      }, (error: ERRORDATA): void => {
        this.restService.handleError(error, 'get');
      });
  }

  /** Get the NSD Content List & patch value in edit form @public */
  public getNSConfigDetails(URL: string, name: {}[]): void {
    this.restService.getResource(URL).subscribe((content: NSConfigData): void => {
      this.nsConfigData.push(content);
      this.details = this.nsConfigData[0];
      const nsId: string = 'nsId';
      // eslint-disable-next-line security/detect-object-injection
      const nsdId: {}[] = name.filter((nsdData: {}[]): boolean => nsdData[nsId] === this.details.nsdId);
      const nsName: string = 'nsName';
      for (const data of nsdId) {
        // eslint-disable-next-line security/detect-object-injection
        this.nsdName = data[nsName];
      }
      if (!isNullOrUndefined(this.details.config)) {
        this.config = jsyaml.dump(this.details.config);
      }
      this.packagesForm.patchValue({ name: this.details.name, nsdId: this.nsdName, config: this.config });
      this.isLoadingResults = false;
    }, (error: ERRORDATA): void => {
      this.restService.handleError(error, 'get');
      this.isLoadingResults = false;
    });
  }

  /** Create packages @public */
  public createPackages(): void {
    this.submitted = true;
    this.modalData = {
      message: 'Done'
    };
    this.sharedService.cleanForm(this.packagesForm);
    if (!this.packagesForm.invalid) {
      this.isLoadingResults = true;
      if (this.params.page === 'ns-package' || this.params.page === 'vnf-package') {
        if (this.params.page === 'ns-package') {
          this.endPoint = environment.NSDESCRIPTORSCONTENT_URL;
        } else if (this.params.page === 'vnf-package') {
          this.endPoint = environment.VNFPACKAGESCONTENT_URL;
        }
        const descriptor: string = this.packageYaml(this.params.page);
        try {
          // eslint-disable-next-line @typescript-eslint/no-explicit-any
          const tar: any = new Tar();
          const out: Uint8Array = tar.append(this.packagesForm.value.name + '/' + this.packagesForm.value.name + '.yaml',
            descriptor, { type: '0' });
          const gzipContent: Uint8Array = pako.gzip(out);
          this.createPackageApi(gzipContent.buffer);
        } catch (e) {
          this.isLoadingResults = false;
          this.notifierService.notify('error', this.translateService.instant('ERROR'));
        }
      } else {
        try {
          this.headers = new HttpHeaders({
            Accept: 'application/json',
            'Cache-Control': 'no-cache, no-store, must-revalidate, max-age=0'
          });
          if (this.params.page === 'ns-config-template') {
            this.endPoint = environment.NSCONFIGTEMPLATE_URL;
            this.createTemplate(this.endPoint);
          } else if (this.params.page === 'ns-config-template-edit') {
            this.endPoint = environment.NSCONFIGTEMPLATE_URL + '/' + this.params.id + '/' + 'template_content';
            this.editTemplate(this.endPoint);
          }
        } catch (e) {
          this.isLoadingResults = false;
          this.notifierService.notify('error', this.translateService.instant('ERROR'));
        }
      }
    }
  }

  /** Post config template @public */
  public createTemplate(urlHeader: string): void {
    this.isLoadingResults = true;
    const apiURLHeader: APIURLHEADER = {
      url: urlHeader,
      httpOptions: { headers: this.headers }
    };
    if (isNullOrUndefined(this.packagesForm.value.config) || this.packagesForm.value.config === '') {
      delete this.packagesForm.value.config;
    } else {
      const validJSON: boolean = this.sharedService.checkJson(this.packagesForm.value.config);
      if (validJSON) {
        this.packagesForm.value.config = JSON.parse(this.packagesForm.value.config);
      } else {
        const getConfigJson: string = jsyaml.load(this.packagesForm.value.config, { json: true });
        this.packagesForm.value.config = getConfigJson;
      }
    }
    const nsName: string = 'nsName';
    // eslint-disable-next-line security/detect-object-injection
    const nsdId: {}[] = this.nsdDetails.filter((nsdData: {}[]): boolean => nsdData[nsName] === this.packagesForm.value.nsdId);
    for (const data of nsdId) {
      // eslint-disable-next-line @typescript-eslint/dot-notation
      this.nsId = data['nsId'];
    }
    this.packagesForm.value.nsdId = this.nsId;
    this.restService.postResource(apiURLHeader, (this.packagesForm.value)).subscribe((result: {}): void => {
      this.activeModal.close(this.modalData);
      this.isLoadingResults = false;
      this.notifierService.notify('success', this.translateService.instant('PAGE.NSCONFIGTEMPLATE.TEMPLATECREATEDSUCCESSFULLY'));
    }, (error: ERRORDATA): void => {
      this.restService.handleError(error, 'post');
      this.isLoadingResults = false;
    });
  }

  /** Edit config template @public */
  public editTemplate(urlHeader: string): void {
    this.isLoadingResults = true;
    const apiURLHeader: APIURLHEADER = {
      url: urlHeader,
      httpOptions: { headers: this.headers }
    };
    if (isNullOrUndefined(this.packagesForm.value.config) || this.packagesForm.value.config === '') {
      delete this.packagesForm.value.config;
    } else {
      const validJSON: boolean = this.sharedService.checkJson(this.packagesForm.value.config);
      if (validJSON) {
        this.packagesForm.value.config = JSON.parse(this.packagesForm.value.config);
      } else {
        const getConfigJson: string = jsyaml.load(this.packagesForm.value.config, { json: true });
        this.packagesForm.value.config = getConfigJson;
      }
    }
    this.restService.putResource(apiURLHeader, (this.packagesForm.value)).subscribe((result: {}): void => {
      this.activeModal.close(this.modalData);
      this.isLoadingResults = false;
      this.notifierService.notify('success', this.translateService.instant('PAGE.NSCONFIGTEMPLATE.TEMPLATEEDITEDSUCCESSFULLY'));
    }, (error: ERRORDATA): void => {
      this.restService.handleError(error, 'post');
      this.isLoadingResults = false;
    });
  }
  /** Create packages @public */
  private createPackageApi(packageContent: ArrayBuffer | SharedArrayBuffer): void {
    this.headers = new HttpHeaders({
      'Content-Type': 'application/gzip',
      Accept: 'application/json',
      'Cache-Control': 'no-cache, no-store, must-revalidate, max-age=0'
    });
    const apiURLHeader: APIURLHEADER = {
      url: this.endPoint,
      httpOptions: { headers: this.headers }
    };
    this.restService.postResource(apiURLHeader, packageContent).subscribe((result: { id: string }): void => {
      this.isLoadingResults = false;
      this.activeModal.close();
      this.composeNSPackages(result.id);
    }, (error: ERRORDATA): void => {
      this.isLoadingResults = false;
      this.restService.handleError(error, 'post');
    });
  }
  /** Config file process @private */
  public configFile(files: FileList): void {
    if (files && files.length === 1) {
      const fileFormat: string = this.sharedService.fetchFileExtension(files).toLocaleLowerCase();
      if (fileFormat === 'yaml' || fileFormat === 'yml') {
        this.sharedService.getFileString(files, 'yaml').then((fileContent: string): void => {
          this.packagesForm.get('config').setValue(fileContent);
        }).catch((err: string): void => {
          if (err === 'typeError') {
            this.notifierService.notify('error', this.translateService.instant('YAMLFILETYPEERRROR'));
          } else {
            this.notifierService.notify('error', this.translateService.instant('ERROR'));
          }
          this.fileInputConfigLabel.nativeElement.innerText = this.translateService.instant('CHOOSEFILE');
          this.fileInputConfig.nativeElement.value = null;
        });
      } else if (fileFormat === 'json') {
        this.sharedService.getFileString(files, 'json').then((fileContent: string): void => {
          const getConfigJson: string = jsyaml.load(fileContent, { json: true });
          this.packagesForm.get('config').setValue(JSON.stringify(getConfigJson));
        }).catch((err: string): void => {
          if (err === 'typeError') {
            this.notifierService.notify('error', this.translateService.instant('JSONFILETYPEERRROR'));
          } else {
            this.notifierService.notify('error', this.translateService.instant('ERROR'));
          }
          this.fileInputConfigLabel.nativeElement.innerText = this.translateService.instant('CHOOSEFILE');
          this.fileInputConfig.nativeElement.value = null;
        });
      }
    } else if (files && files.length > 1) {
      this.notifierService.notify('error', this.translateService.instant('DROPFILESVALIDATION'));
    }
    this.fileInputConfigLabel.nativeElement.innerText = files[0].name;
    this.fileInputConfig.nativeElement.value = null;
  }
  /** Compose NS Packages @private */
  private composeNSPackages(id: string): void {
    let packageUrl: string;
    if (this.params.page === 'ns-package') {
      packageUrl = '/packages/ns/compose/';
      this.notifierService.notify('success', this.packagesForm.value.name + ' ' +
        this.translateService.instant('PAGE.NSPACKAGE.CREATEDSUCCESSFULLY'));
    } else if (this.params.page === 'vnf-package') {
      packageUrl = '/packages/vnf/compose/';
      this.notifierService.notify('success', this.packagesForm.value.name + ' ' +
        this.translateService.instant('PAGE.VNFPACKAGE.CREATEDSUCCESSFULLY'));
    }
    this.router.navigate([packageUrl, id]).catch((): void => {
      // Catch Navigation Error
    });
  }
  /** Deafult template for NS and VNF Packages @private */
  private packageYaml(descriptorType: string): string {
    let packageYaml: {} = {};
    const composerName: string = 'NGUI Composer';
    const composerDefaultVersion: string = '1.0';
    if (descriptorType === 'ns-package') {
      packageYaml = {
        nsd: {
          nsd: [
            {
              id: this.packagesForm.value.name,
              name: this.packagesForm.value.name,
              version: composerDefaultVersion,
              description: this.packagesForm.value.name + ' descriptor',
              designer: composerName,
              df: [
                {
                  id: 'default-df',
                  'vnf-profile': []
                }
              ]
            }
          ]
        }
      };
    } else {
      packageYaml = {
        vnfd: {
          id: this.packagesForm.value.name,
          'product-name': this.packagesForm.value.name,
          version: composerDefaultVersion,
          description: this.packagesForm.value.name + ' descriptor',
          provider: composerName,
          df: [
            {
              id: 'default-df',
              'instantiation-level': [],
              'vdu-profile': []
            }
          ],
          'ext-cpd': [],
          vdu: [],
          'sw-image-desc': [],
          'virtual-storage-desc': []
        }
      };
    }
    return jsyaml.dump(packageYaml, { sortKeys: true });
  }

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