@projectcaluma/ember-form-builder/addon/utils/and.js

Ember engine for building Caluma forms.

import { typeOf } from "@ember/utils";
import { isPromise } from "validated-changeset";

function notTrue(value) {
  return typeOf(value) !== "boolean" || !value;
}

function handleResult(result) {
  if (notTrue(result)) throw result;
  return true;
}

/**
 * Accepts an array of ember-changeset-validations validation functions.
 *
 * Copied and updated from nucleartide/ember-changeset-hofs
 * @module and
 */
export default function and(...validators) {
  return (key, newValue, oldValue, changes, object) => {
    for (let i = 0; i < validators.length; i++) {
      const validation = validators[i](
        key,
        newValue,
        oldValue,
        changes,
        object,
      );

      if (isPromise(validation)) {
        let promise = validation.then(handleResult);

        for (let j = i + 1; j < validators.length; j++) {
          promise = promise
            .then(() => validators[j](key, newValue, oldValue, changes, object))
            .then(handleResult);
        }

        return promise.catch((err) => err);
      }

      if (notTrue(validation)) return validation;
    }

    return true;
  };
}