import { isObject } from '@wry-smile/utils-is'
import { intersectionWith, isArray, isEqual, mergeWith, unionWith } from 'lodash-es'
import { unref } from 'vue'

/**
 * @description:  Set ui mount node
 */
export function getPopupContainer(node?: HTMLElement): HTMLElement {
  return (node?.parentNode as HTMLElement) ?? document.body
}

/**
 *
 * @param source 合并的源对象
 * @param target 目标对象, 合并结果存放在此对象中
 * @param mergeArrays - 合并策略
 *        - "union": 并集
 *        - "intersection": 交集
 *        - "concat": 连接
 *        - "replace": 替换
 * @returns
 */
export function deepMerge<T extends object | null | undefined, U extends object | null | undefined>(
  source: T,
  target: U,
  mergeArrays: 'union' | 'intersection' | 'concat' | 'replace' = 'replace',
): T & U {
  if (!target)
    return source as T & U

  if (!source)
    return target as T & U

  return mergeWith({}, source, target, (sourceValue, targetValue) => {
    if (isArray(targetValue) && isArray(sourceValue)) {
      switch (mergeArrays) {
        case 'union':
          return unionWith(sourceValue, targetValue, isEqual)
        case 'intersection':
          return intersectionWith(sourceValue, targetValue, isEqual)
        case 'concat':
          return sourceValue.concat(targetValue)
        case 'replace':
          return targetValue
        default:
          throw new Error(`Unknown merge array strategy: ${mergeArrays as string}`)
      }
    }
    if (isObject(targetValue) && isObject(sourceValue))
      return deepMerge(sourceValue, targetValue, mergeArrays)

    return undefined
  })
}

// dynamic use hook props
export function getDynamicProps<T extends Record<string, unknown>, U>(props: T): Partial<U> {
  const ret: Recordable = {}

  Object.keys(props).forEach((key) => {
    ret[key] = unref((props as Recordable)[key])
  })

  return ret as Partial<U>
}

/**
 * Add the object as a parameter to the URL
 * @param baseUrl url
 * @param obj
 * @returns {string}
 * eg:
 *  let obj = {a: '3', b: '4'}
 *  setObjToUrlParams('www.baidu.com', obj)
 *  ==>www.baidu.com?a=3&b=4
 */
export function setObjToUrlParams(baseUrl: string, obj: any): string {
  let parameters = ''
  for (const key in obj)
    parameters += `${key}=${encodeURIComponent(obj[key])}&`

  parameters = parameters.replace(/&$/, '')
  return /\?$/.test(baseUrl) ? baseUrl + parameters : baseUrl.replace(/\/?$/, '?') + parameters
}