export function arraysEqual(a, b) {
  if (a === b) return true
  if (a == null || b == null) return false
  if (a.length != b.length) return false

  const aIncludeB = a.every((element) => b.indexOf(element) > -1)
  if (!aIncludeB) return false

  const bIncludeA = b.every((element) => a.indexOf(element) > -1)
  return bIncludeA
}

/**
 * Simple object check.
 * @param item
 * @returns {boolean}
 */
function isObject(item) {
  return item && typeof item === 'object' && !Array.isArray(item)
}

/**
 * Deep merge two objects.
 * @param target
 * @param ...sources
 */
export function mergeDeep(target, ...sources) {
  if (!sources.length) return target
  const source = sources.shift()

  if (isObject(target) && isObject(source)) {
    for (const key in source) {
      if (isObject(source[key])) {
        if (!target[key]) Object.assign(target, { [key]: {} })
        mergeDeep(target[key], source[key])
      } else {
        Object.assign(target, { [key]: source[key] })
      }
    }
  }

  return mergeDeep(target, ...sources)
}

/**
 * Change value of different types to array.
 * @param value
 */
export function anyToArray(value) {
  if (isObject(value)) {
    value = Object.values(value)
  }
  return [].concat(value)
}