import 'package:shadcn_flutter/shadcn_flutter.dart';

class SidebarSwiper extends StatefulWidget {
  const SidebarSwiper({
    required this.sidebar,
    required this.child,
    super.key,
  });

  final Widget sidebar;
  final Widget child;

  @override
  State<SidebarSwiper> createState() => _SidebarSwiperState();
}

class _SidebarSwiperState extends State<SidebarSwiper> {
  final _controller = PageController(initialPage: 1);

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      child: PageView(
        controller: _controller,
        physics: const ClampingScrollPhysics(),
        children: [
          // page 0 - sidebar
          Row(
            children: [
              Expanded(child: _KeepAlive(child: Scaffold(child: widget.sidebar))),
              const VerticalDivider(width: 1),
            ],
          ),

          // page 1 - main content
          _KeepAlive(child: widget.child),
        ],
      ),
    );
  }
}

class _KeepAlive extends StatefulWidget {
  const _KeepAlive({required this.child});
  final Widget child;

  @override
  State<_KeepAlive> createState() => _KeepAliveState();
}

class _KeepAliveState extends State<_KeepAlive>
    with AutomaticKeepAliveClientMixin {

  @override
  bool get wantKeepAlive => true;

  @override
  Widget build(BuildContext context) {
    super.build(context);
    return SizedBox.expand(child: widget.child);
  }
}