patronum/spread/index.js

☄️ Effector utility library delivering modularity and convenience

import { createEvent, sample } from 'effector';
var hasPropBase = {}.hasOwnProperty;
var hasOwnProp = (object, key) => hasPropBase.call(object, key);

/**
 * @example
 * spread({
 *   source: dataObject,
 *   targets: { first: targetA, second: [target1, target2] },
 * })
 *
 * sample({
 *   source: dataObject,
 *   target: spread({ targets: { first: targetA, second: [target1, target2] } })
 * })
 *
 * sample({
 *   source: dataObject,
 *   target: spread({ first: targetA, second: [target1, target2] })
 * })
 */

export function spread(args) {
  var argsShape = isTargets(args) ? {
    targets: args
  } : args;
  var {
    targets,
    source = createEvent({
      name: "source",
      sid: "-u92i8l"
    })
  } = argsShape;
  var _loop = function _loop(targetKey) {
    if (hasOwnProp(targets, targetKey)) {
      var currentTarget = targets[targetKey];
      sample({
        and: [{
          source,
          filter: object => {
            return typeof object === 'object' && object !== null && targetKey in object;
          },
          fn: object => object[targetKey],
          target: currentTarget,
          batch: false
        }],
        or: {
          sid: "motx3n"
        }
      });
    }
  };
  for (var targetKey in targets) {
    _loop(targetKey);
  }
  return source;
}
function isTargets(args) {
  return !Object.keys(args).some(key => ['targets', 'source'].includes(key));
}