import { Component, OnInit } from '@angular/core'
import { NotificationsService } from 'angular2-notifications'
import { UserCreate } from '../../../../shared'
import { FormReactive, UserService, UserValidatorsService } from '../shared'
import { RedirectService, ServerService } from '@app/core'
import { I18n } from '@ngx-translate/i18n-polyfill'
import { FormValidatorService } from '@app/shared/forms/form-validators/form-validator.service'

@Component({
  selector: 'my-signup',
  templateUrl: './signup.component.html',
  styleUrls: [ './signup.component.scss' ]
})
export class SignupComponent extends FormReactive implements OnInit {
  error: string = null

  constructor (
    protected formValidatorService: FormValidatorService,
    private userValidatorsService: UserValidatorsService,
    private notificationsService: NotificationsService,
    private userService: UserService,
    private serverService: ServerService,
    private redirectService: RedirectService,
    private i18n: I18n
  ) {
    super()
  }

  get instanceHost () {
    return window.location.host
  }

  get requiresEmailVerification () {
    return this.serverService.getConfig().signup.requiresEmailVerification
  }

  ngOnInit () {
    this.buildForm({
      username: this.userValidatorsService.USER_USERNAME,
      password: this.userValidatorsService.USER_PASSWORD,
      email: this.userValidatorsService.USER_EMAIL,
      terms: this.userValidatorsService.USER_TERMS
    })
  }

  signup () {
    this.error = null

    const userCreate: UserCreate = this.form.value

    this.userService.signup(userCreate).subscribe(
      () => {
        if (this.requiresEmailVerification) {
          this.notificationsService.alert(
            this.i18n('Welcome'),
            this.i18n('Please check your email to verify your account and complete signup.')
          )
        } else {
          this.notificationsService.success(
            this.i18n('Success'),
            this.i18n('Registration for {{username}} complete.', { username: userCreate.username })
          )
        }
        this.redirectService.redirectToHomepage()
      },

      err => this.error = err.message
    )
  }
}