@bigfishtv/cockpit/src/utils/lifecycleUtils.js

import Immutable from 'immutable'
import { isArray } from './typeUtils'
import _get from 'lodash/get'

/**
 * Takes two objects and a list of paths and checks if any have changed
 * @param  {Object} oldValue
 * @param  {Object} newValue
 * @param  {Array}  fields   Either array of fields or string for a single field
 * @return {Boolean}
 */
export function valueChanged(oldValue = {}, newValue = {}, fields = []) {
	if (!isArray(fields)) fields = [fields]
	for (let field of fields) {
		if (isArray(field)) field = field.join('.')
		if (_get(oldValue, field) !== _get(newValue, field)) {
			return true
		}
	}
	return false
}

/**
 * Takes two form values (or prevProps and props) and checks for any differences in provided field list
 * @param  {Object} oldFormValue 	Either formValue or props object containing formValue
 * @param  {Object} newFormValue 	Either formValue or props object containing formValue
 * @param  {Array} fields 			Either array of fields or string for a single field
 * @return {Boolean}
 */
export function formValueChanged(oldFormValue, newFormValue, fields = []) {
	if ('formValue' in oldFormValue) oldFormValue = oldFormValue.formValue
	if ('formValue' in newFormValue) newFormValue = newFormValue.formValue
	oldFormValue = oldFormValue.value || {}
	newFormValue = newFormValue.value || {}
	return valueChanged(oldFormValue, newFormValue, fields)
}

/**
 * Take any array or object and get a hash string for it
 * @param {Object|Array} data
 * @returns {String}
 */
export function getDataHash(data) {
	return Immutable.fromJS(data)
		.hashCode()
		.toString()
}