import { inject, injectable } from 'inversify';
import { Navigatable, SelectableTreeNode, WidgetManager } from '@gedit/application/lib/browser';
import { Event, URI } from '@gedit/utils';
import { NavigatorTreeWidget } from './navigator-tree';

@injectable()
export class NavigatorService {
  @inject(WidgetManager) protected widgetManager: WidgetManager;
  @inject(NavigatorTreeWidget) protected readonly treeWidget: NavigatorTreeWidget;
  //
  // /**
  //  * 隐藏属性面板
  //  */
  // async closeView(): Promise<void> {
  //   await this.shell.closeWidget(NAVIGATOR_VIEW_CONTAINER_ID);
  // }
  //
  // /**
  //  * 打开属性面板
  //  */
  // async openView(args: Partial<OpenViewArguments> = {}): Promise<NavigatorViewContainer> {
  //   const shell = this.shell;
  //   const widget = this.widget = await this.widgetManager.getOrCreateWidget<NavigatorViewContainer>(NAVIGATOR_VIEW_CONTAINER_ID);
  //   const tabBar = shell.getTabBarFor(widget);
  //   // const area = shell.getAreaFor(widget)
  //   if (!tabBar) {
  //     const widgetArgs: ApplicationShell.WidgetOptions = {
  //       area: 'left', // 放到左侧面板
  //       rank: 200,
  //     };
  //     await shell.addWidget(widget, widgetArgs);
  //     widget.update();
  //   }
  //   if (widget.isAttached && args.activate) {
  //     await shell.activateWidget(NAVIGATOR_VIEW_CONTAINER_ID);
  //   } else if (widget.isAttached && args.reveal) {
  //     await shell.revealWidget(NAVIGATOR_VIEW_CONTAINER_ID);
  //   }
  //   return this.widget;
  // }
  //
  // toggleView(): Promise<NavigatorViewContainer> {
  //   return this.openView({
  //     toggle: true,
  //     activate: true
  //   });
  // }

  /**
   * 选中treeNode节点
   * @param uri
   */
  async selectTreeNode(uri: URI | Navigatable | object): Promise<void> {
    let resourceUri: URI | undefined;
    if (Navigatable.is(uri)) {
      resourceUri = uri.getResourceUri();
    }
    if (uri instanceof URI) {
      resourceUri = uri;
    }
    if (resourceUri) {
      const model = this.treeWidget.model;
      if (model) {
        const node = await model.revealFile(resourceUri);
        if (SelectableTreeNode.is(node)) {
          model.selectNode(node);
        }
      }
    }
  }
  get onSelectionChanged(): Event<ReadonlyArray<Readonly<SelectableTreeNode>>> {
    return this.treeWidget.model.onSelectionChanged;
  }

  /**
   * 刷新整个树
   */
  refreshTreeNodes(): void {
    // const model = this.navigatorViewContainer.navigatorTreeWidget.model;
    // model.refresh(model.root);
  }
  /**
   * 获取导航栏上选中的节点
   */
  getSelectedTreeNodes(): ReadonlyArray<Readonly<SelectableTreeNode>> {
    return this.treeWidget.model.selectedNodes;
  }
}