import {Component, Input} from '@angular/core';
import {Subscriber} from "rxjs";
import {HttpClient} from "@angular/common/http";
import {Validators} from "@angular/forms";
import {Location} from '@angular/common';
import {StringUtils} from "../openaireLibrary/utils/string-utils.class";
import {COOKIE, Session} from "../openaireLibrary/login/utils/helper.class";
import {UserManagementService} from "../openaireLibrary/services/user-management.service";
import {Router} from "@angular/router";
declare var UIkit;

@Component({
  selector: 'egi-transfer-data',
  template: `
      <a (click)="open()"
         [title]="'Egi Transfer service'"
         [attr.uk-tooltip]="'pos: right; cls: uk-active landing-action-tooltip landing-action-tooltip-portal uk-text-small uk-padding-small'"
      > <span icon="cloud-upload"></span>
          <span class="uk-icon-button uk-icon landing-action-button landing-action-button-portal">
                     <span uk-icon="cloud-upload"></span>
                  </span>
      </a>


      <!-- This is the modal -->
      <div id="modal-example" class="uk-modal uk-open " style="display: block" [class.uk-invisible]="!isOpen">
          <div class="uk-modal-dialog uk-modal-body uk-width-expand">
              <button class="uk-modal-close-default" type="button" uk-close (click)="close()"></button>
              <div class="uk-padding">
                  <div *ngIf="!accessToken" class="">
                      <div class="uk-width-1-1 uk-text-center">
                          <h2 class="uk-modal-title">Title</h2>
                      </div>
                      <div class="uk-width-1-1 uk-margin-top uk-margin-bottom">
                          Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut
                          labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco
                          laboris nisi ut aliquip ex ea commodo consequat.
                      </div>
                      <div class="uk-text-center">
                          <button *ngIf="!accessToken" class="uk-button uk-button-default" (click)="checkin()">EGI
                              checkin
                          </button>
                      </div>
                  </div>
                  <div *ngIf="accessToken" class="">
                      <div class="uk-width-1-1  uk-text-center">
                          <h2 class="uk-modal-title">Title</h2>
                      </div>
                      <div class="uk-width-1-1 uk-margin-top uk-margin-bottom">
                          Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut
                          labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco
                          laboris nisi ut aliquip ex ea commodo consequat.
                      </div>
                      <div class="uk-grid uk-child-width-1-2 uk-grid-divider">
                          <div class="uk-first-column">
                              <p class="uk-text-meta">Lorem ipsum ....</p>
                              <div input [(value)]="sourceUrl" placeholder="Give a Zenodo DOI url..." type="URL"
                                   label="URL" [validators]="validators"></div>
                              <!--                        <button *ngIf="!downloadElements"  (click)="parse()" class="uk-button uk-button-default uk-margin-top"  [class.uk-disabled]="sourceUrl.length == 0">Parse</button>-->
                          </div>
                          <div>
                              <p class="uk-text-meta">Lorem ipsum ....</p>
                              <div input [(value)]="destinationPath" placeholder="Give a destination path..."
                                   [validators]="validators[0]"></div>
                              <button (click)="parse()"
                                      class="uk-button uk-button-primary uk-margin-top"
                                      [class.uk-disabled]="destinationPath.length == 0 || status == 'success' ||status == 'loading' ">
                                  >> Transfer to EGI Storage
                              </button>
                          </div>
                      </div>
                      <div *ngIf="status == 'loading'" class="uk-flex uk-flex-center uk-text-muted">
                          <div>
                        <span class="uk-icon uk-spinner">
                        <svg width="60" height="60" viewBox="0 0 30 30" xmlns="http://www.w3.org/2000/svg"
                             data-svg="spinner"><circle
                            fill="none" stroke="#000" cx="15" cy="15" r="14" style="stroke-width: 2px;"></circle></svg>
                        </span>
                          </div>
                      </div>
                      <div *ngIf="message" class="uk-width-1-1 uk-alert"
                           [class.uk-alert-success]="status && status.indexOf('error')==-1"
                           [class.uk-alert-error]="status && status.indexOf('error')!=-1"
                           [innerHTML]="message">
                      </div>

                      <div class="uk-width-1-1 uk-text-right "
                           [class.uk-invisible]="!(status == 'success' || status.indexOf('error')!=-1)">
                          <button class="uk-button uk-button-default uk-margin-top " (click)="close()">Close</button>
                      </div>
                  </div>
              </div>

          </div>
      </div>


  `
})
export class EGIDataTransferComponent {
  subscriptions = [];
  accessToken =  null;
  @Input() dois;
  loginURL = "http://rudie.di.uoa.gr:8580/openid_connect_login"
  sourceUrl = null;
  destinationPath = "";
  destinationURL = "https://egi.storage.eu";
  downloadElements = null;
  @Input() isOpen = false;
  APIURL = "https://virtserver.swaggerhub.com/thebe14/eosc-future-data-transfer/1.0.0";
  status: "loading" | "success" | "errorParser" | "errorUser" | "errorTransfer" | "init" = "init";
  message;
  validators = [Validators.required, StringUtils.urlValidator()];
  constructor(private http: HttpClient, private location: Location, private userManagementsService: UserManagementService, private _router: Router) {

  }

  ngOnInit() {
    console.log(COOKIE.getCookie("EGISession"))
    this.accessToken = COOKIE.getCookie("EGISession");
    for(let doi of this.dois){
      console.log(doi)
      if(doi.indexOf("zenodo.")!=-1){
        this.sourceUrl = "https://doi.org/" + doi;
        break;
      }


    }
  }

  ngOnDestroy() {
    this.subscriptions.forEach(subscription => {
      if (subscription instanceof Subscriber) {
        subscription.unsubscribe();
      }
    });

  }
  open(){
    this.isOpen = true;
  }
  close(){
    this.isOpen = false;
    this.downloadElements = null;
    this.destinationPath = "";
    this.message = null;
    this.status = "init";
    if(this._router.url.indexOf("&egiTransfer")){
      this.location.go(this._router.url.split("&egiTransfer")[0]);
    }
    
  }
  checkin(){
    // this.loggedIn = true;

    console.log(COOKIE.getCookie("EGISession"))
    // this.accessToken = COOKIE.getCookie("EGISession");
    COOKIE.setCookie("EGISession", "test!!!!!!",10,"/" );
    this.userManagementsService.setRedirectUrl(this._router.url+"&egiTransfer=t");
    // this.location.go("/reload");
    window.location.href = "/reload";
    // window.location.href = this.loginURL;

  }
  parse(){
     this.status = "loading";
    this.subscriptions.push(this.http.get(this.APIURL + "/user/info").subscribe(
      res => {
        console.log(res)
        this.subscriptions.push(this.http.get(this.APIURL + "/parser/zenodo?source=" + this.sourceUrl ).subscribe(
          res => {
            console.log(res)
            this.downloadElements = [];
            for( let element of res['elements']){
              //TODO remove
              element.downloadUrl = "https://zenodo.org/record/6354460/files/preprocessed_data/weights/atlas_EUCP_ICTP_CMIP6_REA_tas_weights.nc?download=1";
              //TODO can we use element.name instead?
              element.filename = this.parseFilename(element.downloadUrl);
              console.log(element.filename)
              this.downloadElements.push(element)
            }

            console.log(this.downloadElements)
            this.transfer();

          }, error => {
            this.status = "errorParser";
            this.message = "Couldn't get download URLs from zenodo";
            UIkit.notification("Couldn't get download URLs from zenodo", {
              status: 'error',
              timeout: 6000,
              pos: 'bottom-right'
            });

          }
        ));
      }, error => {
        this.status = "errorUser";
        this.message = "User can't be authenticated!";
        UIkit.notification("User can't be authenticated!", {
          status: 'error',
          timeout: 6000,
          pos: 'bottom-right'
        });

      }
    ));
  }

  transfer() {

    let body = {
      "files": [],
      "params": {
        "priority": 0,
        "overwrite": true,
        "retry": 3
      }
    };
    for (let element of this.downloadElements) {

     let file = {
        "sources": [
        {
          "url": element['downloadUrl']
        }
      ],
        "destinations": [
        {
          "url": this.destinationURL + this.destinationPath + element.filename
        }
      ],
        "filesize": element['size']
      };
     //TODO priority? checksum?
     body.files.push(file);
    }



    this.subscriptions.push(this.http.post(this.APIURL + "/transfer" ,body ).subscribe(
      res => {
        console.log(res)
        UIkit.notification('Data transfer has began! ', {
          status: 'success',
          timeout: 6000,
          pos: 'bottom-right'
        });

        this.status = "success"
        this.message = `
            <div class="uk-text-large uk-margin-bottom">Data transfer has began!</div>
            <div>Transfering ` + this.downloadElements.length + ` files to <a href="`+ this.destinationURL + this.destinationPath + `" target=_blank> EGI Storage</a>: 
          <ul>
`;
        // TODO LATER we can call status for each file and see if the transfer has been complete
        for(let element of this.downloadElements){
          console.log(element)
          this.message += ` <li> `+ element.filename+ `</li>  `;

        }
        this.message += `
        </ul>  
          </div>`

      }, error => {
        this.status = "errorTransfer";
        this.message = "Couldn't transfer files";
        UIkit.notification("Couldn't transfer files", {
          status: 'error',
          timeout: 6000,
          pos: 'bottom-right'
        });

      }
    ));

  }
  private parseFilename(url){
    let filename = url.split("/")[url.split("/").length - 1];
    return filename.split("?")[0];
  }

}