FreekakeApp/lib/screen/pustaka/pustaka_detail_screen.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_html/flutter_html.dart';

class ListPustakaDetailScreen extends StatefulWidget {
  final String title;
  final String imagePath;
  final String paragraphs;
  final String filepath;

  const ListPustakaDetailScreen({
    super.key,
    required this.title,
    required this.imagePath,
    required this.paragraphs,
    required this.filepath,
  });

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

class _ListDetailScreenState extends State<ListPustakaDetailScreen> {
  late List<bool> _readStatus;
  String _htmlContent = '';

  @override
  void initState() {
    super.initState();
    _readStatus = List.generate(widget.paragraphs.length, (index) => false);
    loadHtml();
  }

  void _toggleReadStatus(int index) {
    setState(() {
      _readStatus[index] = !_readStatus[index];
    });
  }

  Future<void> loadHtml() async {
    String html = await DefaultAssetBundle.of(
      context,
    ).loadString(widget.filepath);

    html = html.replaceAllMapped(
      RegExp(r'<div class="gizi-grid">(.*?)</div>', dotAll: true),
      (match) => '<gizi-grid>${match.group(1)}</gizi-grid>',
    );
    setState(() {
      _htmlContent = html;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      appBar: AppBar(
        title: Text(widget.title),
        backgroundColor: Color.fromARGB(225, 79, 76, 182),
      ),
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          SizedBox(
            height: 10,
            child: Container(
              decoration: BoxDecoration(
                borderRadius: BorderRadius.only(
                  bottomLeft: Radius.circular(40),
                  bottomRight: Radius.circular(40),
                ),
                color: Color.fromARGB(225, 79, 76, 182),
              ),
            ),
          ),
          const SizedBox(height: 0),
          Expanded(
            child: SingleChildScrollView(
              padding: const EdgeInsets.only(left: 18.0, right: 18, bottom: 18),
              child: htmlBody(),
            ),
          ),
        ],
      ),
      // ),
    );
  }

  Html htmlBody() {
    return Html(
      style: {"body": Style(color: const Color.fromRGBO(0, 0, 0, 1))},
      // data: widget.paragraphs,
      data: _htmlContent,
      extensions: [
        TagExtension(
          tagsToExtend: {"img"},
          builder: (ExtensionContext context) {
            final attrs = context.attributes;
            final src = attrs['src'] ?? '';

            if (src.isNotEmpty) {
              if (src.startsWith('assets/html/')) {
                return Image.asset(
                  src,
                  width: 100,
                  errorBuilder:
                      (context, error, stackTrace) =>
                          const Text('Image not found'),
                );
              } else if (!src.startsWith('http')) {
                return Image.asset(
                  'assets/images/$src',
                  width: 100,
                  errorBuilder:
                      (context, error, stackTrace) =>
                          const Text('Image not found'),
                );
              } else {
                return Image.network(
                  src,
                  width: 100,
                  errorBuilder:
                      (context, error, stackTrace) =>
                          const Text('Image failed to load'),
                );
              }
            }
            return const SizedBox();
          },
        ),
        TagExtension(
          tagsToExtend: {"gizi-grid"},
          builder: (context) {
            final spans = context.inlineSpanChildren ?? [];

            final widgets =
                spans.map((span) {
                  if (span is WidgetSpan) return span.child;
                  return const SizedBox();
                }).toList();

            return Wrap(
              spacing: 12,
              runSpacing: 12,
              children:
                  widgets.map((child) {
                    return SizedBox(width: 160, child: child);
                  }).toList(),
            );
          },
        ),
      ],
    );
  }
}