discourse/app/assets/javascripts/admin/controllers/admin-email-index.js.es6

import { ajax } from "discourse/lib/ajax";
export default Ember.Controller.extend({
  /**
    Is the "send test email" button disabled?

    @property sendTestEmailDisabled
  **/
  sendTestEmailDisabled: Em.computed.empty("testEmailAddress"),

  /**
    Clears the 'sentTestEmail' property on successful send.

    @method testEmailAddressChanged
  **/
  testEmailAddressChanged: function() {
    this.set("sentTestEmail", false);
  }.observes("testEmailAddress"),

  actions: {
    /**
      Sends a test email to the currently entered email address

      @method sendTestEmail
    **/
    sendTestEmail: function() {
      this.setProperties({
        sendingEmail: true,
        sentTestEmail: false
      });

      var self = this;
      ajax("/admin/email/test", {
        type: "POST",
        data: { email_address: this.get("testEmailAddress") }
      })
        .then(
          function() {
            self.set("sentTestEmail", true);
          },
          function(e) {
            if (e.responseJSON && e.responseJSON.errors) {
              bootbox.alert(
                I18n.t("admin.email.error", {
                  server_error: e.responseJSON.errors[0]
                })
              );
            } else {
              bootbox.alert(I18n.t("admin.email.test_error"));
            }
          }
        )
        .finally(function() {
          self.set("sendingEmail", false);
        });
    }
  }
});