import 'package:fading_scroll/fading_scroll.dart';
import 'package:flutter/material.dart';
import 'package:nullability/nullability.dart';
import 'package:weblibre/features/web_feed/data/models/feed_author.dart';

class AuthorsHorizontalList extends StatelessWidget {
  late final List<Widget> _authors;

  AuthorsHorizontalList({
    required List<FeedAuthor> authors,
    Set<String> selectedTags = const {},
    void Function(String tagId, bool value)? onTagSelected,
  }) {
    _authors = authors.map((author) {
      final label = Text(
        '${author.name ?? ''} ${author.email.mapNotNull((email) => '($email)') ?? ''}'
            .trim(),
      );

      return onTagSelected.mapNotNull(
            (onTagSelected) => FilterChip(
              label: label,
              selected: selectedTags.contains(author.name),
              onSelected: (value) {
                if (author.name.isNotEmpty) {
                  onTagSelected(author.name!, value);
                }
              },
            ),
          ) ??
          Chip(label: label);
    }).toList();
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      height: 48,
      child: FadingScroll(
        fadingSize: 15,
        builder: (context, controller) {
          return ListView.builder(
            itemCount: _authors.length,
            controller: controller,
            scrollDirection: Axis.horizontal,
            itemBuilder: (context, index) => _authors[index],
          );
        },
      ),
    );
  }
}
