open-consul/ui/packages/consul-ui/app/validations/intention-permission.js

import {
  validateInclusion,
  validatePresence,
  validateFormat,
} from 'ember-changeset-validations/validators';
import validateSometimes from 'ember-changeset-conditional-validations/validators/sometimes';

const name = 'intention-permission';
export default (schema) => ({
  '*': validateSometimes([validatePresence(true)], function () {
    const methods = this.get('HTTP.Methods') || [];
    const headers = this.get('HTTP.Header') || [];
    const pathType = this.get('HTTP.PathType') || 'NoPath';
    const path = this.get('HTTP.Path') || '';
    const isValid = [
      methods.length !== 0,
      headers.length !== 0,
      pathType !== 'NoPath' && path !== '',
    ].includes(true);
    return !isValid;
  }),
  Action: [validateInclusion({ in: schema[name].Action.allowedValues })],
  HTTP: {
    Path: validateSometimes([validateFormat({ regex: /^\// })], function () {
      const pathType = this.get('HTTP.PathType');
      return typeof pathType !== 'undefined' && pathType !== 'NoPath';
    }),
  },
});