import 'package:flutter/material.dart';

import '../../../core/models/models.dart';
import '../../../core/models/severity_mapping.dart';
import '../../../core/theme/theme_x.dart';
import '../../../core/widgets/data_table_scaffold.dart';
import '../../../core/widgets/empty_state.dart';
import '../../../core/widgets/mono_text.dart';
import '../../../core/widgets/status_pill.dart';

class ServicesTable extends StatelessWidget {
  const ServicesTable({
    super.key,
    required this.services,
    required this.onRowTap,
    required this.onToggleRunning,
    required this.busyServiceIds,
  });

  final List<Service> services;
  final void Function(Service service) onRowTap;
  final void Function(Service service) onToggleRunning;
  final Set<String> busyServiceIds;

  String _backupSummary(Service service) {
    final targets = service.backup?.targets ?? const [];
    if (targets.isEmpty) return 'none';
    if (targets.length == 1) return targets.first.method.name;
    return '${targets.length} targets';
  }

  @override
  Widget build(BuildContext context) {
    return DataTableScaffold(
      empty: const EmptyState(
        icon: Icons.layers_outlined,
        title: 'No services yet',
        message: 'Scan a compose folder from the Dashboard, or add one manually.',
      ),
      columns: const [
        DataColumn(label: Text('Service')),
        DataColumn(label: Text('Status')),
        DataColumn(label: Text('Compose file')),
        DataColumn(label: Text('Backup')),
        DataColumn(label: Text('')),
      ],
      rows: [
        for (final service in services)
          DataRow(
            onSelectChanged: (_) => onRowTap(service),
            cells: [
              DataCell(
                Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Text(service.name, style: context.text.labelLarge),
                    Text(
                      service.composeType?.isNotEmpty == true ? service.composeType! : 'docker compose',
                      style: context.text.bodySmall,
                    ),
                  ],
                ),
              ),
              DataCell(
                StatusPill(label: service.status, severity: severityForServiceStatus(service.status)),
              ),
              DataCell(MonoText(service.composeFile)),
              DataCell(
                _backupSummary(service) == 'none'
                    ? Text('none', style: context.text.bodySmall)
                    : Text(_backupSummary(service), style: context.text.bodyMedium),
              ),
              DataCell(
                busyServiceIds.contains(service.id)
                    ? const SizedBox(width: 18, height: 18, child: CircularProgressIndicator(strokeWidth: 2))
                    : IconButton(
                        tooltip: service.status == 'up' ? 'Stop' : 'Start',
                        icon: Icon(service.status == 'up' ? Icons.stop_rounded : Icons.play_arrow_rounded, size: 20),
                        onPressed: () => onToggleRunning(service),
                      ),
              ),
            ],
          ),
      ],
    );
  }
}