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import { I18n } from '@ngx-translate/i18n-polyfill'
import { Validators, ValidatorFn } from '@angular/forms'
import { Injectable } from '@angular/core'
import { BuildFormValidator, validateHost } from '@app/shared'
@Injectable()
export class BatchDomainsValidatorsService {
readonly DOMAINS: BuildFormValidator
constructor (private i18n: I18n) {
this.DOMAINS = {
VALIDATORS: [ Validators.required, this.validDomains, this.isHostsUnique ],
MESSAGES: {
'required': this.i18n('Domain is required.'),
'validDomains': this.i18n('Domains entered are invalid.'),
'uniqueDomains': this.i18n('Domains entered contain duplicates.')
}
}
}
getNotEmptyHosts (hosts: string) {
return hosts
.split('\n')
.filter((host: string) => host && host.length !== 0) // Eject empty hosts
}
private validDomains: ValidatorFn = (control) => {
if (!control.value) return null
const newHostsErrors = []
const hosts = this.getNotEmptyHosts(control.value)
for (const host of hosts) {
if (validateHost(host) === false) {
newHostsErrors.push(this.i18n('{{host}} is not valid', { host }))
}
}
/* Is not valid. */
if (newHostsErrors.length !== 0) {
return {
'validDomains': {
reason: 'invalid',
value: newHostsErrors.join('. ') + '.'
}
}
}
/* Is valid. */
return null
}
private isHostsUnique: ValidatorFn = (control) => {
if (!control.value) return null
const hosts = this.getNotEmptyHosts(control.value)
if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
return null
} else {
return {
'uniqueDomains': {
reason: 'invalid'
}
}
}
}
}
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