import { h, createApp, reactive, createCommentVNode } from 'vue'
import { defineVxeComponent } from '../ui/src/comp'
import { VxeUI } from '@vxe-ui/core'

import type { VxeModalDefines, VxeDrawerDefines, VxeLoadingProps, VxeWatermarkProps, VxeContextMenuProps, VxeContextMenuDefines, VxeContextMenuEventProps } from '../../types'

let dynamicContainerElem: HTMLElement

export const dynamicStore = reactive<{
  modals: VxeModalDefines.ModalOptions[]
  drawers: VxeDrawerDefines.DrawerOptions[]
  globalLoading: null | VxeLoadingProps
  globalWatermark: null | VxeWatermarkProps
  globalContextMenu: null |(VxeContextMenuProps & VxeContextMenuDefines.ContextMenuOpenOptions)
    }>({
      modals: [],
      drawers: [],
      globalLoading: null,
      globalWatermark: null,
      globalContextMenu: null
    })

/**
 * 动态组件
 */
const VxeDynamics = defineVxeComponent({
  setup () {
    const VxeUIModalComponent = VxeUI.getComponent('vxe-modal')
    const VxeUIDrawerComponent = VxeUI.getComponent('vxe-drawer')
    const VxeUILoadingComponent = VxeUI.getComponent('vxe-loading')
    const VxeUIWatermarkComponent = VxeUI.getComponent('vxe-watermark')
    const VxeUIContextMenuComponent = VxeUI.getComponent('vxe-context-menu')

    return () => {
      const { modals, drawers, globalWatermark, globalLoading, globalContextMenu } = dynamicStore
      let cmOpts: (VxeContextMenuProps & VxeContextMenuEventProps) | null = globalContextMenu
      if (globalContextMenu) {
        const events = globalContextMenu.events || {}
        const { optionClick, show, hide } = events
        cmOpts = Object.assign({}, globalContextMenu, {
          onShow (params: VxeContextMenuDefines.ShowEventParams) {
            if (show) {
              show(params)
            }
          },
          onHide (params: VxeContextMenuDefines.HideEventParams) {
            if (hide) {
              hide(params)
            }
            dynamicStore.globalContextMenu = null
          },
          onOptionClick (params: VxeContextMenuDefines.OptionClickEventParams) {
            if (optionClick) {
              optionClick(params)
            }
          }
        }, { events: undefined })
      }
      return [
        modals.length
          ? h('div', {
            key: 1,
            class: 'vxe-dynamics--modal'
          }, modals.map((item) => h(VxeUIModalComponent, item)))
          : createCommentVNode(),
        drawers.length
          ? h('div', {
            key: 2,
            class: 'vxe-dynamics--drawer'
          }, drawers.map((item) => h(VxeUIDrawerComponent, item)))
          : createCommentVNode(),
        globalWatermark ? h(VxeUIWatermarkComponent, globalWatermark) : createCommentVNode(),
        globalLoading ? h(VxeUILoadingComponent, globalLoading) : createCommentVNode(),
        globalContextMenu ? h(VxeUIContextMenuComponent, cmOpts) : createCommentVNode()
      ]
    }
  }
})

export const dynamicApp = createApp(VxeDynamics)

export function checkDynamic () {
  if (!dynamicContainerElem) {
    dynamicContainerElem = document.createElement('div')
    dynamicContainerElem.className = 'vxe-dynamics'
    document.body.appendChild(dynamicContainerElem)
    dynamicApp.mount(dynamicContainerElem)
  }
}