import React, { ReactNode, Component } from 'react'
import { PopperProps, PopperChildrenProps } from 'react-popper'
import PopperJs from 'popper.js'

declare enum TriggerType {
  click = 0,
  hover = 1,
}
interface ReactPopperProps {
  /**
   * 强制显示 popper 组件
   *
   * Force to show the popper
   * */
  forceShow?: boolean
  /**
   * 关联 dom 元素用于控制 popper 是否显示的事件
   *
   * Determine what event of reference element will make the popper show or hide
   *
   * Default: TriggerType.click
   * */
  trigger?: TriggerType
  /**
   * 延迟显示
   *
   * Delay to show
   *
   * Default: 0
   * */
  delayShow?: number
  /**
   * 延迟隐藏
   *
   * Delay to hide
   *
   * Default:
   *  If trigger === TriggerType.hover, default is 200
   *  Else default is 0
   * */
  delayHide?: number
  className?: string
  /**
   * Popper 的位置
   *
   * Placement of popper
   *
   * Default: 'bottom-start'
   * */
  placement?: PopperProps['placement']
  /**
   * 关联元素
   *
   * Reference element
   *
   * Default: The parent element of the component element
   * */
  referenceRef?:
    | PopperProps['referenceElement']
    | (() => PopperProps['referenceElement'])
  children?:
    | ((
        props: PopperChildrenProps & {
          popperRef: ReactPopper
        },
      ) => ReactNode)
    | ReactNode
  /**
   * Modifiers config of popperjs
   * See in https://popper.js.org/popper-documentation.html#Popper.Defaults.modifiers
   * */
  modifiers?: PopperProps['modifiers']
  /**
   * Default: true
   * */
  positionFixed?: PopperProps['positionFixed']
  /**
   * Arrow 箭头的问题
   *
   * Position of arrow
   *
   * Default: 'middle'
   * */
  arrowPosition?: 'start' | 'end' | 'middle'
  /**
   * Arrow 箭头的偏移量
   *
   * Position offset of arrow
   *
   * Default: 15
   * */
  arrowOffset?: number
  /**
   * popper 显示/隐藏之前触发的回调，返回值确定是否应该显示或者隐藏
   * */
  shouldToggle?(
    toVisible: boolean,
    context: ReactPopper,
    ev?: React.MouseEvent<any>,
  ): boolean
  /**
   * popper 显示/隐藏之后触发的回调
   *
   * The callback triggered after popper's show/hide
   * */
  afterToggle?(visible: boolean, context: ReactPopper): void
}

declare class ReactPopper extends Component<
  ReactPopperProps,
  {
    visible: boolean
    isMounted: boolean
  }
> {
  /**
   * scheduleUpdate of popper
   * */
  scheduleUpdate: () => void
  popperRef?: HTMLDivElement
  arrowRef?: HTMLDivElement
  timer: {
    type: 'show' | 'hide' | ''
    id: any
  }
  constructor(props: ReactPopperProps)
  readonly referenceEl: PopperProps['referenceElement']
  readonly isHover: boolean
  readonly eventName: 'mouseover' | 'click'
  readonly modifiers: PopperProps['modifiers']
  readonly visible: boolean
  readonly delayShow: number
  readonly delayHide: number
  readonly shouldToggle: NonNullable<ReactPopperProps['shouldToggle']>
  /**
   * Show the popper
   *
   * Use it outside the component:
   *
   * <ReactPopper ref={compInstance => ref = compInstance}></ReactPopper>
   * ref.show()
   * */
  show: (ev?: React.MouseEvent<any, MouseEvent> | undefined) => void
  /**
   * Hide the popper
   *
   * Use it outside the component: same as method show
   * */
  hide: (ev?: React.MouseEvent<any, MouseEvent> | undefined) => void
  /**
   * Toggle the popper
   *
   * Use it outside the component: same as method show
   * */
  toggle: (ev?: React.MouseEvent<any, MouseEvent> | undefined) => void
  componentDidMount(): void
  componentWillUnmount(): void
  render(): JSX.Element
  private eventHandler
  private afterToggle
}

declare function arrowModifier(
  arrowPosition: ReactPopperProps['arrowPosition'],
  arrowOffset: ReactPopperProps['arrowOffset'],
  ...[dataObject, options]: Parameters<
    NonNullable<NonNullable<PopperJs.Modifiers['arrow']>['fn']>
  >
): PopperJs.Data
declare function convertPos(
  data: PopperJs.Data,
  type: 'left' | 'top',
  arrowPosition?: ReactPopperProps['arrowPosition'],
  arrowOffset?: ReactPopperProps['arrowOffset'],
): number

declare function containsOrEqual(
  parent: PopperProps['referenceElement'],
  target?: HTMLElement,
): boolean
declare function getReferenceEl(
  popperRef?: HTMLElement,
  referenceRef?:
    | PopperProps['referenceElement']
    | (() => PopperProps['referenceElement']),
): PopperProps['referenceElement']

export default ReactPopper
export {
  ReactPopperProps,
  TriggerType,
  arrowModifier,
  containsOrEqual,
  convertPos,
  getReferenceEl,
}