import { Component } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import { FileService } from '@yourcause/common';
import { AnalyticsService, EventType } from '@yourcause/common/analytics';
import { I18nService } from '@yourcause/common/i18n';
import moment from 'moment';
import { map, mergeMap, share, tap } from 'rxjs';
import { SharedDownloadsService } from '../shared-downloads.service';

@Component({
  selector: 'gc-shared-downloads-wrapper',
  templateUrl: 'shared-downloads-wrapper.component.html',
  styleUrls: ['./shared-downloads-wrapper.component.scss']
})

export class SharedDownloadsWrapperComponent {
  private url: string;
  private fileName: string;
  private urlParams$ = this.activatedRoute.queryParamMap.pipe(
    map(queryMap => ({ downloadLink: queryMap.get('downloadLink'), userGeneratedReportID: queryMap.get('userGeneratedReportId'), expirationParam: queryMap.get('expiration'), fileName: queryMap.get('fileName') })),
    mergeMap(params => this.sharedDownloadService.evaluateDownloadUrl(params)),
    tap((params) => {
      this.url = params.downloadLink;
      this.fileName = params.fileName;
    }),
    share());
  private expired$ = this.urlParams$.pipe(
    map(params => ({ params, isValid: (params.expiration.isAfter(moment()) && params.fileExists) })));
  buttonVisible$ = this.expired$.pipe(
    map(({ isValid }) => isValid));
  icon$ = this.expired$.pipe(
    map(({ isValid }) => isValid ? 'download' : 'hourglass-end'));
  buttonText = this.i18n.translate(
    'common:textDownloadReport',
    {},
    'Download report'
  );
  downloadBodyText$ = this.expired$.pipe(
  map(({ isValid, params }) => {
   if (isValid) {
    return this.i18n.translate(
      'common:textSharedDownloadBodyText',
      {
        timeRemaining: params.expiration.diff(moment(), 'h')
      },
      'Click below to download your report. To ensure that valuable report information is kept secure, reports expire after a set amount of time. This report\'s download link will expire in __timeRemaining__ hour(s).'
    );
   }

   return this.i18n.translate(
       'common:textSharedDownloadBodyTextExpired',
       {},
       'To ensure that valuable report information is kept secure, reports expire after a set amount of time. If you would like to receive this report please contact an administrator and ask to have the report manually sent to you.'
     );
  }));
  downloadHeaderText$ = this.expired$.pipe(
  map(({ isValid }) => {
    if (isValid) {
      return this.i18n.translate(
        'common:textSharedDownloadHeader',
        {},
        'Download Report'
      );
    } else {
      return this.i18n.translate(
        'common:textExpiredSharedDownloadHeader',
        {},
        'Download Expired'
      );
    }
  }));

  constructor (
    private activatedRoute: ActivatedRoute,
    private sharedDownloadService: SharedDownloadsService,
    private i18n: I18nService,
    private analyticsService: AnalyticsService,
    private fileService: FileService
  ) { }

  async handleClick () {
    await this.fileService.downloadUrlAs(this.url, this.fileName);
    this.analyticsService.emitEvent({
      eventName: 'Open shared file',
      eventType: EventType.Click,
      extras: null
    });
  }
}