import 'package:flutter/material.dart';
import 'package:test_sa/extensions/context_extension.dart';
import'package:test_sa/extensions/int_extensions.dart';
import 'package:test_sa/extensions/text_extensions.dart';
import 'package:test_sa/new_views/app_style/app_color.dart';
import 'package:test_sa/new_views/common_widgets/app_filled_button.dart';

typedef SelectionBuilderString = String Function(dynamic);

class SelectionBottomSheet<T> extends StatefulWidget {
  final List<T> items;
  final T? selectedItem; // Now nullable
  final String title;
  final SelectionBuilderString builderString;

  const SelectionBottomSheet({Key? key, this.items = const [], this.selectedItem, this.title = "", required this.builderString}) : super(key: key);

  @override
  _SelectionBottomSheetState createState() => _SelectionBottomSheetState<T>();
}

class _SelectionBottomSheetState<T> extends State<SelectionBottomSheet<T>> {
  T? _selectedValue; // Now nullable

  String query = "";

  List<T> get filteredList => widget.items.where((element) => widget.builderString(element).toLowerCase().contains(query.toLowerCase())).toList();

  @override
  void initState() {
    _selectedValue = widget.selectedItem;
    super.initState();
  }

  FocusNode searchFocusNode = FocusNode();

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

  @override
  Widget build(BuildContext context) {
    return Container(
      height: MediaQuery.of(context).size.height * .7,
      padding: const EdgeInsets.all(21),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          widget.title.heading5(context),
          16.height,
          TextField(
            onChanged: (queryString) {
              query = queryString;
              setState(() {});
            },
            style: const TextStyle(fontSize: 14),
            focusNode: searchFocusNode,
            decoration: InputDecoration(
              hintText: 'Search by name',
              labelText: 'Search',
              hintStyle: const TextStyle(fontSize: 14),
              focusedBorder: OutlineInputBorder(
                borderSide: BorderSide(color: AppColor.blueStatus(context), width: 2.0),
                borderRadius: const BorderRadius.all(Radius.circular(12.0)),
              ),
              enabledBorder: OutlineInputBorder(
                borderSide: BorderSide(color: AppColor.blueStatus(context), width: 1.0),
                borderRadius: const BorderRadius.all(Radius.circular(12.0)),
              ),
              contentPadding: const EdgeInsets.symmetric(vertical: 8.0, horizontal: 16.0),
            ),
          ),
          8.height,
          Expanded(
            // Wrap ListView with Expanded
            child: ListView.builder(
              itemCount: filteredList.length,
              padding: const EdgeInsets.only(top: 8),
              itemBuilder: (cxt, index) => RadioListTile<T>(
                // Specify type for RadioListTile
                value: filteredList[index],
                dense: true,
                contentPadding: EdgeInsets.zero,
                groupValue: _selectedValue,
                activeColor: Colors.black87,
                onChanged: (value) {
                  _selectedValue = value;
                  searchFocusNode.unfocus();
                  setState(() {});
                },
                title: Text(
                  widget.builderString(filteredList[index]).cleanupWhitespace?.capitalizeFirstOfEach ?? "",
                  style: Theme.of(context).textTheme.bodyLarge,
                ),
              ),
            ),
          ),
          8.height,
          if (_selectedValue != null)
            AppFilledButton(
              label: context.translation.select,
              maxWidth: true,
              onPressed: () {
                Navigator.pop(context, _selectedValue);
              },
            ),
        ],
      ),
    );
  }
}