import paper from "paper"
import { useLabelStore, useObjectStore } from "../store"
import { useOtherToolsStore } from "../useOtherToolsStore"
import {
  ensureEditablePaperPathSelected,
  usePaperStore,
} from "../usePaperStore"
import { usePaperSupportStore } from "../usePaperSupportStore"
import { useTopToolsStore } from "../useTopToolsStore"

const getTagVisibilityByConfig = (tagCategory?: string) => {
  const { showTags, showTagsConfigs } = useTopToolsStore.getState()
  if (!showTags) return false
  if (tagCategory === "mask") return showTagsConfigs.includes("外框")
  if (tagCategory === "point_text") return showTagsConfigs.includes("点ID")
  return true
}

const resetSelectedItemVisual = (item: paper.Item) => {
  if (!(item instanceof paper.Path || item instanceof paper.CompoundPath))
    return
  if (!["rectangle", "polygon"].includes(item.data?.type || "")) return
  item.fillColor = item.data?.blankColor || item.fillColor || null
}

export const getObjectTagVisibility = (
  imageId: string,
  objectId: number,
  tagCategory?: string
) => {
  const { pathStatus } = useObjectStore.getState()
  if (pathStatus[imageId + objectId]?.HIDE) return false
  return getTagVisibilityByConfig(tagCategory)
}

const setSelectedItemFalse = (id: number) => {
  if (!id) return
  const sameIdItems = usePaperStore.getState().getItemsById(id)
  sameIdItems.forEach((item) => {
    if (item.data.type === "mask" || item.data.type === "text") {
      item.remove()
    }
    resetSelectedItemVisual(item)
    if (item.data.selected) item.data.selected = false
  })
}

const clearHiddenObjectSelectionState = (imageId: string, objectId: number) => {
  const otherToolsState = useOtherToolsStore.getState()
  if (
    otherToolsState.showContextMenu &&
    otherToolsState.imageId === imageId &&
    otherToolsState.id === objectId
  ) {
    otherToolsState.setShowContextMenu({
      showContextMenu: false,
      position: {
        top: 0,
        left: 0,
      },
      imageId: "",
      operationId: "",
      id: 0,
    })
  }
}

const syncObjectItemsVisibility = (
  imageId: string,
  objectId: number,
  hide: boolean
) => {
  const sameIdItems = usePaperStore.getState().getItemsById(objectId)
  if (!sameIdItems?.length) return
  sameIdItems.forEach((item) => {
    if (hide) {
      item.visible = false
      return
    }
    if (item.data?.type === "tag") {
      item.visible = getObjectTagVisibility(
        imageId,
        objectId,
        item.data?.tag_category
      )
      return
    }
    item.visible = true
  })
}

const applySelectedItemVisual = (item: paper.Item) => {
  if (!(item instanceof paper.Path || item instanceof paper.CompoundPath))
    return
  const itemType = item.data?.type
  if (!["rectangle", "polygon", "brush", "point"].includes(itemType || ""))
    return

  const objectId = Number(item.data?.id)
  const editablePath = Number.isFinite(objectId)
    ? ensureEditablePaperPathSelected(objectId)
    : item instanceof paper.Path && !item.data?.isHollowPolygon
      ? item
      : null

  if (itemType === "rectangle" && item instanceof paper.Path) {
    item.data.selected = true
    usePaperSupportStore.getState().handleBufferPaths(item)
    usePaperSupportStore.getState().handleCircles(item)
    item.fillColor = item.data.fillColor || item.fillColor || null
  } else if (itemType === "brush") {
    item.data.selected = true
    if (editablePath) {
      usePaperSupportStore.getState().handleMask(editablePath)
      usePaperSupportStore.getState().handleBufferPaths(editablePath)
      usePaperSupportStore.getState().handleCircles(editablePath)
    }
  } else if (itemType === "point") {
    item.data.selected = true
    if (editablePath) {
      usePaperSupportStore.getState().handleMask(editablePath)
      usePaperSupportStore.getState().handleText(editablePath)
      usePaperSupportStore.getState().handleBufferPaths(editablePath)
      usePaperSupportStore.getState().handleCircles(editablePath)
    }
  } else if (itemType === "polygon") {
    item.data.selected = true
    if (editablePath) {
      usePaperSupportStore.getState().handleBufferPaths(editablePath)
      usePaperSupportStore.getState().handleCircles(editablePath)
    }
    if (!(item instanceof paper.Path) || !item.data?.isHollowPolygon) {
      item.fillColor = item.data.fillColor || item.fillColor || null
    }
  }

  item.bringToFront()
}

export const syncSelectedObjectsVisualState = (imageId: string) => {
  const group = usePaperStore.getState().group
  if (!group) return

  group
    .getItems({
      match: (item: paper.Item) => !!item.data?.selected,
    })
    .forEach((item) => {
      resetSelectedItemVisual(item)
      item.data.selected = false
    })

  usePaperSupportStore.getState().clearAll()

  const { selectedPath, pathStatus } = useObjectStore.getState()
  ;(selectedPath[imageId] || []).forEach((selectedId) => {
    if (pathStatus[imageId + selectedId]?.HIDE) return
    usePaperStore
      .getState()
      .getItemsById(selectedId)
      .forEach((item) => {
        if (item.data?.type === "tag") return
        applySelectedItemVisual(item)
      })
  })
}

export const toggleObjectHideByShortcut = (
  imageId: string,
  operationId: string,
  objectId: number,
  hide: boolean
) => {
  const { updatePathStatus, updateOperationStatus } = useObjectStore.getState()
  const storeLabel = useLabelStore.getState().label

  if (hide) {
    updatePathStatus(imageId + objectId, "HIDE", hide)
    syncObjectItemsVisibility(imageId, objectId, hide)
    setSelectedItemFalse(objectId)
    clearHiddenObjectSelectionState(imageId, objectId)
    syncSelectedObjectsVisualState(imageId)

    const operationChildren = storeLabel.get(imageId)?.get(operationId) || []
    const hasVisibleChild = operationChildren.some((child) => {
      const item = usePaperStore
        .getState()
        .getItemById(child[0]) as paper.Item | null
      return !!item?.visible
    })
    if (!hasVisibleChild) {
      updateOperationStatus(imageId + operationId, "HIDE", hide)
    }
    return
  }

  updateOperationStatus(imageId + operationId, "HIDE", hide)
  updatePathStatus(imageId + objectId, "HIDE", hide)
  syncObjectItemsVisibility(imageId, objectId, hide)
  syncSelectedObjectsVisualState(imageId)
}