import {Component, Input, OnInit} from "@angular/core";
import {FormBuilder, FormControl, Validators} from "@angular/forms";
import {UserRegistryService} from "../services/user-registry.service";

@Component({
  selector: 'verification',
  template: `
    <div *ngIf="loading" class="loading-gif"></div>
    <div *ngIf="name && !loading" class="uk-text-center uk-text-large">
      <ng-container *ngIf="state === 'default'">
        <div>
          You have been invited to join <span class="uk-text-bold">{{name}}</span> as Manager;<br>
          Fill in the verification code, sent to your email, to accept the invitation request.
        </div>
        <div class="uk-margin-medium-top">
          <input [formControl]="code" class="uk-input uk-width-small" [class.uk-form-danger]="code.invalid">
        </div>
        <div class="uk-margin-medium-top">
          <button class="uk-button" [class.portal-button]="code.valid" [class.uk-disabled]="code.invalid"
                  (click)="verify()">Accept
          </button>
          <button class="uk-button uk-button-danger uk-margin-medium-left" (click)="reject()">Reject</button>
        </div>
      </ng-container>
      <ng-container *ngIf="state === 'verified'">
        <div>
          You are now manager of {{name}}.
        </div>
      </ng-container>
      <ng-container *ngIf="state === 'refused'">
        <div>
          You have been refused to be manager of {{name}}.
        </div>
      </ng-container>
    </div>
  `
})
export class VerificationComponent implements OnInit {
  
  @Input()
  public name: string;
  @Input()
  public invitation;
  public code: FormControl;
  public loading = false;
  public state: 'default' | 'verified' | 'refused' | 'error' = 'default';
  
  constructor(private fb: FormBuilder,
              private userRegistryService: UserRegistryService) {
  }
  
  ngOnInit() {
    this.code = this.fb.control('', [Validators.required, Validators.pattern('^[+0-9]{6}$')]);
  }
  
  verify() {
    this.loading = true;
    this.userRegistryService.verify(this.invitation.id, this.code.value).subscribe(() => {
      this.state = 'verified';
      this.loading = false;
    });
  }
  
  reject() {
    this.loading = true;
    this.userRegistryService.deleteVerification(this.invitation.id).subscribe(() => {
      this.state = 'refused';
      this.loading = false;
    });
  }
}