libredesk/frontend/shared-ui/components/ui/form/useFormField.js

import {
  FieldContextKey,
  useFieldError,
  useIsFieldDirty,
  useIsFieldTouched,
  useIsFieldValid
} from 'vee-validate'
import { inject } from 'vue'
import { FORM_ITEM_INJECTION_KEY } from './injectionKeys'

export function useFormField() {
  const fieldContext = inject(FieldContextKey)
  const fieldItemContext = inject(FORM_ITEM_INJECTION_KEY)

  if (!fieldContext) throw new Error('useFormField should be used within <FormField>')

  const { name } = fieldContext
  const id = fieldItemContext

  const fieldState = {
    valid: useIsFieldValid(name),
    isDirty: useIsFieldDirty(name),
    isTouched: useIsFieldTouched(name),
    error: useFieldError(name)
  }

  return {
    id,
    name,
    formItemId: `${id}-form-item`,
    formDescriptionId: `${id}-form-item-description`,
    formMessageId: `${id}-form-item-message`,
    ...fieldState
  }
}