import 'package:flutter/material.dart';
import 'package:invoiceninja_flutter/ui/app/app_scrollbar.dart';

class ScrollableListView extends StatefulWidget {
  const ScrollableListView({
    Key key,
    @required this.children,
    this.scrollController,
    this.padding,
    this.hideMobileThumb = false,
  }) : super(key: key);

  final List<Widget> children;
  final ScrollController scrollController;
  final EdgeInsetsGeometry padding;
  final bool hideMobileThumb;

  @override
  _ScrollableListViewState createState() => _ScrollableListViewState();
}

class _ScrollableListViewState extends State<ScrollableListView> {
  ScrollController _scrollController;

  @override
  void initState() {
    super.initState();
    _scrollController = ScrollController();
  }

  @override
  void dispose() {
    _scrollController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return AppScrollbar(
      controller: widget.scrollController ?? _scrollController,
      hideMobileThumb: widget.hideMobileThumb,
      child: ListView(
        padding: widget.padding,
        children: widget.children,
        controller: widget.scrollController ?? _scrollController,
        shrinkWrap: true,
      ),
    );
  }
}

class ScrollableListViewBuilder extends StatefulWidget {
  const ScrollableListViewBuilder({
    Key key,
    @required this.itemBuilder,
    @required this.itemCount,
    this.separatorBuilder,
    this.scrollController,
    this.padding,
  }) : super(key: key);

  final IndexedWidgetBuilder itemBuilder;
  final IndexedWidgetBuilder separatorBuilder;
  final int itemCount;
  final ScrollController scrollController;
  final EdgeInsetsGeometry padding;

  @override
  _ScrollableListViewBuilderState createState() =>
      _ScrollableListViewBuilderState();
}

class _ScrollableListViewBuilderState extends State<ScrollableListViewBuilder> {
  ScrollController _scrollController;

  @override
  void initState() {
    super.initState();
    _scrollController = ScrollController();
  }

  @override
  void dispose() {
    _scrollController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return AppScrollbar(
      controller: widget.scrollController ?? _scrollController,
      child: widget.separatorBuilder != null
          ? ListView.separated(
              separatorBuilder: widget.separatorBuilder,
              padding: widget.padding,
              itemBuilder: widget.itemBuilder,
              itemCount: widget.itemCount,
              controller: widget.scrollController ?? _scrollController,
              shrinkWrap: true,
            )
          : ListView.builder(
              padding: widget.padding,
              itemBuilder: widget.itemBuilder,
              itemCount: widget.itemCount,
              controller: widget.scrollController ?? _scrollController,
              shrinkWrap: true,
            ),
    );
  }
}