class CheckListStatusItem extends StatelessWidget {
  Task task;
  Widget expansion_panel_body;
  List<TaskStatusItem> item;

  CheckListStatusItem(this.task) {
    expansion_panel_body = new Column(
      children: <Widget>[
        new Text(TaskStatus.TODO.toString().split(".")[1]),
        new Text(TaskStatus.IN_PROGRESS.toString().split(".")[1]),
        new Text(TaskStatus.DONE.toString().split(".")[1]),
      ],
    );
    item = <TaskStatusItem>[new TaskStatusItem(false, task.status.toString().split(".")[1], expansion_panel_body)];
  }

  @override
  Widget build(BuildContext context) {
    return new ListTile(
      leading: new Icon(Icons.list),
      title: new Text(task.summary),
      trailing: new ExpansionPanelList(
        expansionCallback: (int panelIndex, bool isExpanded) => item[panelIndex].isExpanded = !item[panelIndex].isExpanded,
        children: item.map((TaskStatusItem item) {
            return new ExpansionPanel(
                headerBuilder: (BuildContext context, bool isExpanded) => new Text(item.header),
                isExpanded: item.isExpanded,
                body: item.body,
                );
        }).toList(),
        ),
      );
  }
}