import 'package:filesize/filesize.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:jiffy/jiffy.dart';

import '../../../../api/marianumcloud/webdav/queries/list_files/cacheable_file.dart';

/// Shows a modal bottom sheet with technical metadata about a single file or
/// folder: full path, MIME type, size, timestamps, ETag.
Future<void> showFileDetailsSheet(BuildContext context, CacheableFile file) {
  return showModalBottomSheet<void>(
    context: context,
    isScrollControlled: true,
    showDragHandle: true,
    builder: (context) => SafeArea(
      child: SingleChildScrollView(
        padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          mainAxisSize: MainAxisSize.min,
          children: [
            ListTile(
              leading: Icon(file.isDirectory ? Icons.folder : Icons.description_outlined, size: 32),
              title: Text(file.name, style: const TextStyle(fontWeight: FontWeight.bold)),
              subtitle: Text(file.isDirectory ? 'Ordner' : (file.mimeType ?? '–')),
            ),
            const Divider(),
            _DetailRow(label: 'Pfad', value: file.path, copyable: true),
            if (!file.isDirectory) _DetailRow(label: 'Größe', value: filesize(file.size)),
            if (file.modifiedAt != null)
              _DetailRow(
                label: 'Geändert',
                value: '${Jiffy.parseFromDateTime(file.modifiedAt!).format(pattern: 'dd.MM.yyyy HH:mm')} '
                    '(${Jiffy.parseFromDateTime(file.modifiedAt!).fromNow()})',
              ),
            if (file.createdAt != null)
              _DetailRow(
                label: 'Erstellt',
                value: Jiffy.parseFromDateTime(file.createdAt!).format(pattern: 'dd.MM.yyyy HH:mm'),
              ),
            if (file.eTag != null) _DetailRow(label: 'ETag', value: file.eTag!, copyable: true),
          ],
        ),
      ),
    ),
  );
}

class _DetailRow extends StatelessWidget {
  const _DetailRow({required this.label, required this.value, this.copyable = false});
  final String label;
  final String value;
  final bool copyable;

  @override
  Widget build(BuildContext context) => Padding(
        padding: const EdgeInsets.symmetric(vertical: 6),
        child: Row(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            SizedBox(
              width: 90,
              child: Text(label, style: TextStyle(color: Theme.of(context).colorScheme.onSurfaceVariant)),
            ),
            Expanded(child: SelectableText(value)),
            if (copyable)
              IconButton(
                tooltip: 'Kopieren',
                icon: const Icon(Icons.copy, size: 18),
                onPressed: () {
                  Clipboard.setData(ClipboardData(text: value));
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(content: Text('In Zwischenablage kopiert')),
                  );
                },
              ),
          ],
        ),
      );
}