import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:paperless_api/paperless_api.dart';
import 'package:paperless_mobile/features/linked_documents_preview/bloc/linked_documents_cubit.dart';
import 'package:paperless_mobile/features/linked_documents_preview/view/pages/linked_documents_page.dart';
import 'package:provider/provider.dart';

class LabelItem<T extends Label> extends StatelessWidget {
  final T label;
  final String name;
  final Widget content;
  final void Function(T) onOpenEditPage;
  final DocumentFilter Function(T) filterBuilder;
  final Widget? leading;

  const LabelItem({
    super.key,
    required this.name,
    required this.content,
    required this.onOpenEditPage,
    required this.filterBuilder,
    this.leading,
    required this.label,
  });

  @override
  Widget build(BuildContext context) {
    return ListTile(
      title: Text(name),
      subtitle: content,
      leading: leading,
      onTap: () => onOpenEditPage(label),
      trailing: _buildReferencedDocumentsWidget(context),
    );
  }

  Widget _buildReferencedDocumentsWidget(BuildContext context) {
    return TextButton.icon(
      label: const Icon(Icons.link),
      icon: Text(_formatDocumentCount(label.documentCount)),
      onPressed: (label.documentCount ?? 0) == 0
          ? null
          : () {
              final filter = filterBuilder(label);
              Navigator.push(
                context,
                MaterialPageRoute(
                  builder: (context) => BlocProvider(
                    create: (context) => LinkedDocumentsCubit(
                      context.read<PaperlessDocumentsApi>(),
                      filter,
                    ),
                    child: const LinkedDocumentsPage(),
                  ),
                ),
              );
            },
    );
  }

  String _formatDocumentCount(int? count) {
    if ((count ?? 0) > 99) {
      return "99+";
    }
    return (count ?? 0).toString().padLeft(3);
  }
}