import { TreeController, TreeListener, TreeListenerManager, TreeListenType, NodeParam, TreeView, CallbackParam,
  SymbolGlyphModifier} from '@kit.ArkUI';

//@ComponentV2

@Entry
@ComponentV2
export struct LeftSideComponent {
  private treeController: TreeController = new TreeController();
  private treeListener: TreeListener = TreeListenerManager.getInstance().getTreeListener();
  @Local clickNodeId: number = 0;

  aboutToDisappear(): void {
    this.treeListener.off(TreeListenType.NODE_CLICK, undefined);
    this.treeListener.off(TreeListenType.NODE_ADD, undefined);
    this.treeListener.off(TreeListenType.NODE_DELETE, undefined);
    this.treeListener.off(TreeListenType.NODE_MOVE, undefined);
  }

  @Builder menuBuilder1() {
    Flex({ direction: FlexDirection.Column, justifyContent: FlexAlign.Center, alignItems: ItemAlign.Center }) {
      Text('新增').fontSize(16).width(100).height(30).textAlign(TextAlign.Center)
        .onClick((event: ClickEvent) => {
          this.treeController.addNode();
        })
      Divider()
      Text('删除').fontSize(16).width(100).height(30).textAlign(TextAlign.Center)
        .onClick((event: ClickEvent) => {
          this.treeController.removeNode();
        })
      Divider()
      Text('重命名').fontSize(16).width(100).height(30).textAlign(TextAlign.Center)
        .onClick((event: ClickEvent) => {
          this.treeController.modifyNode();
        })
    }.width(100).border({width: 1, color: 0x80808a, radius: '16dp'})
  }

  aboutToAppear(): void {
    this.treeListener.on(TreeListenType.NODE_CLICK, (callbackParam: CallbackParam) => {
      this.clickNodeId = callbackParam.currentNodeId;
    })
    this.treeListener.on(TreeListenType.NODE_ADD, (callbackParam: CallbackParam) => {
      this.clickNodeId = callbackParam.currentNodeId;
    })
    this.treeListener.on(TreeListenType.NODE_DELETE, (callbackParam: CallbackParam) => {
      this.clickNodeId = callbackParam.currentNodeId;
    })
    this.treeListener.once(TreeListenType.NODE_MOVE, (callbackParam: CallbackParam) => {
      this.clickNodeId = callbackParam.currentNodeId;
    })

    let normalResource: Resource = $r('sys.symbol.house');
    let selectedResource: Resource = $r('sys.symbol.car');
    let editResource: Resource = $r('sys.symbol.calendar');
    let nodeParam: NodeParam = { parentNodeId:-1, currentNodeId: 1, isFolder: true, icon: normalResource, selectedIcon: selectedResource,
      editIcon: editResource, primaryTitle: "部件历史记录",
      secondaryTitle: "0" };
    this.treeController
      .addNode(nodeParam)
      .buildDone();
    this.treeController.refreshNode(-1, "父节点", "子节点");
  }

  build() {
    Column(){
      SideBarContainer(SideBarContainerType.Embed)
      {
        TreeView({ treeController: this.treeController })
          .bindMenu(this.menuBuilder1)
      }
      .focusable(true)
      .showControlButton(false)
      .showSideBar(true)
    }
  }}