import * as vscode from 'vscode';

export class SidebarMenuProvider implements vscode.TreeDataProvider<TreeItem> {
  onDidChangeTreeData?: vscode.Event<TreeItem | null | undefined> | undefined;

  data: TreeItem[];

  constructor() {
    const itemDocumentation = new TreeItem('Documentation');
    itemDocumentation.command = {
      command: 'paypay.devtool.url.documentation',
      title: 'Open Documentation',
    };
    const itemStartSimulator = new TreeItem('Start');
    itemStartSimulator.command = {
      command: 'paypay.devtool.simulator.start',
      title: 'Start',
    };
    const itemStopSimulator = new TreeItem('Stop');
    itemStopSimulator.command = {
      command: 'paypay.devtool.simulator.stop',
      title: 'Stop',
    };
    /*const itemOpenSimulator = new TreeItem('Open Preview');
    itemOpenSimulator.command = {
      command: 'paypay.devtool.simulator.preview',
      title: 'Open Preview',
    };*/
    var itemGenerateSampleProject = new TreeItem('Generate Sample Project');
    itemGenerateSampleProject.command = {
      command: 'paypay.devtool.workspace.generatesampleproject',
      title: 'Generate Sample Project',
    };
    this.data = [
      new TreeItem('Actions', [itemDocumentation, itemGenerateSampleProject]),
      new TreeItem('Simulator', [
        itemStartSimulator,
        itemStopSimulator,
        //itemOpenSimulator,
      ]),
    ];
  }

  getTreeItem(element: TreeItem): vscode.TreeItem | Thenable<vscode.TreeItem> {
    return element;
  }

  getChildren(
    element?: TreeItem | undefined
  ): vscode.ProviderResult<TreeItem[]> {
    if (element === undefined) {
      return this.data;
    }
    return element.children;
  }
}

export class TreeItem extends vscode.TreeItem {
  children: TreeItem[] | undefined;

  constructor(label: string, children?: TreeItem[]) {
    super(
      label,
      children === undefined
        ? vscode.TreeItemCollapsibleState.None
        : vscode.TreeItemCollapsibleState.Expanded
    );
    this.children = children;
  }
}