discourse-custom-wizard/assets/javascripts/discourse/components/wizard-subscription-container.js

import Component from '@glimmer/component';
import { computed } from "@ember/object";
import { inject as service } from "@ember/service";

export default class WizardSubscriptionContainer extends Component {
  @service subscription;

  @computed("subscription.subscribed")
  get subscribedIcon() {
    return this.subscription.subscribed ? "check" : "times";
  };

  @computed("subscription.subscribed")
  get subscribedLabel() {
    return `admin.wizard.subscription.${
      this.subscription.subscribed ? "subscribed" : "not_subscribed"
    }.label`;
  };

  @computed("subscription.subscribed")
  get subscribedTitle() {
    return `admin.wizard.subscription.${
      this.subscription.subscribed ? "subscribed" : "not_subscribed"
    }.title`;
  };
};