D-Net

import {Component, Input, OnDestroy, OnInit} from "@angular/core";

import {AbstractControl, FormBuilder, FormGroup, ValidationErrors, Validators} from "@angular/forms";

import {Subscriber} from "rxjs";

import {StringUtils} from "../../utils/string-utils.class";

import {Email} from "../../utils/email/email";

import {Body} from "../../utils/email/body";

import {CommunityService} from "../../connect/community/community.service";

import {Composer} from "../../utils/email/composer";

import {User} from "../../login/utils/helper.class";

import {EmailService} from "../../utils/email/email.service";

import {properties} from "../../../../environments/environment";

declare var UIkit;

@Component({

  selector: 'subscriber-invite',

  template: `

    <div class="uk-grid uk-child-width-1-1" uk-grid [formGroup]="inviteForm">

      <div dashboard-input [formInput]="inviteForm.get('name')" [gridSmall]="true">

        <div class="uk-text-bold field-label">

          From *:

        </div>

      </div>

      <div dashboard-input [formInput]="inviteForm.get('recipients')" [gridSmall]="true" note="Separate multiple emails with a comma">

        <div class="uk-text-bold field-label uk-margin-bottom">

          To *:

        </div>

      </div>

      <div class="uk-grid uk-grid-small" uk-grid>

        <div class="uk-text-bold field-label">

          Message *:

        </div>

        <div class="uk-width-expand">

          <ckeditor class="form-control" formControlName="message" id="message"

                    debounce="400"

                    [config]="{ extraAllowedContent: '* [uk-*](*) ; span', disallowedContent: 'script; *[on*]', removeButtons: 'Save,NewPage,DocProps,Preview,Print',

                                                                   extraPlugins: 'divarea'}"></ckeditor>

          <div class="uk-margin-top">

            {{body.signature}}

            <span *ngIf="body.fromName == ''" class="uk-text-muted">

              <i>{{body.fromMessage}}...</i>

            </span>

            <span *ngIf="body.fromName !=''">

              {{body.fromMessage}}

              <b>{{body.fromName}}</b>

            </span><br>

            <a href="https://www.openaire.eu">www.openaire.eu</a>

          </div>

        </div>

      </div>

    </div>

  `,

  styleUrls: ['subscriber-invite.component.css']

})

export class SubscriberInviteComponent implements OnInit, OnDestroy {

  @Input()

  public user: User;

  public inviteForm: FormGroup;

  public email: Email;

  public body: Body;

  public loading: boolean = false;

  private subscriptions: any[] = [];

  constructor(private fb: FormBuilder,

              private emailService: EmailService,

              private communityService: CommunityService) {

  }

  ngOnInit() {

    this.reset();

  }

  ngOnDestroy() {

    this.unsubscribe();

  }

  unsubscribe() {

    this.subscriptions.forEach(subscription => {

      if(subscription instanceof Subscriber) {

        subscription.unsubscribe();

      }

    });

  }

  reset() {

    this.unsubscribe();

    this.inviteForm = this.fb.group({

      name: this.fb.control('', Validators.required),

      recipients: this.fb.control('', [Validators.required, this.emailsValidator]),

      message: this.fb.control('', Validators.required)

    });

    this.subscriptions.push(this.communityService.getCommunityAsObservable().subscribe(community => {

      this.inviteForm.get('name').enable();

      this.inviteForm.get('name').setValue(this.user.fullname);

      this.inviteForm.get('name').disable();

      this.body = Composer.initializeInvitationsBody(community.communityId, community.title, this.user.fullname);

      this.email = Composer.initializeInvitationsEmail(community.title);

      this.inviteForm.get('message').setValue(this.body.paragraphs);

    }));

  }

  emailsValidator(control: AbstractControl): ValidationErrors | null {

    if (control.value === '' || !control.value || StringUtils.validateEmails(control.value)) {

      return null;

    }

    return { emails: true };

  }

  invite() {

    this.loading = true;

    this.parseRecipients();

    this.body.paragraphs = this.inviteForm.value.message;

    this.email.body = Composer.formatEmailBodyForInvitation(this.body);

    this.subscriptions.push(this.emailService.sendEmail(properties, this.email).subscribe(res => {

      if(res['success']) {

        UIkit.notification('Invitation to subscribe has been <b>sent</b>', {

          status: 'success',

          timeout: 6000,

          pos: 'bottom-right'

        });

      } else {

        UIkit.notification('An error has occurred. Please try again later', {

          status: 'danger',

          timeout: 6000,

          pos: 'bottom-right'

        });

      }

      this.loading = false;

    },error => {

      UIkit.notification('An error has occurred. Please try again later', {

        status: 'danger',

        timeout: 6000,

        pos: 'bottom-right'

      });

      this.loading = false;

    }));

  }

  public parseRecipients() {

    // remove spaces

    let emails = this.inviteForm.get('recipients').value.replace(/\s/g, '');

    // remove commas

    emails = emails.split(",");

    // remove empty fields

    for (let i = 0; i < emails.length; i++) {

      if (!(emails[i] == "")) {

        this.email.recipients.push(emails[i]);

      }

    }

  }

  get valid() {

    return this.inviteForm && this.inviteForm.valid;

  }

}