noo/lib/widgets/details/details_activity_tab.dart

import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:provider/provider.dart';
import '../../models/nextcloud_item.dart';
import '../../providers/item_operations.dart';

/// Per-file activity feed — same list-item look as the account-wide
/// Activity tab (activity_view.dart), scoped to a single item.
class DetailsActivityTab extends StatefulWidget {
  final NextcloudItem item;

  const DetailsActivityTab({super.key, required this.item});

  @override
  State<DetailsActivityTab> createState() => _DetailsActivityTabState();
}

class _DetailsActivityTabState extends State<DetailsActivityTab> {
  bool _requested = false;
  bool _isLoading = true;
  List<NextcloudActivity> _activities = [];

  Future<void> _load() async {
    final ops = context.read<ItemOperations>();
    final result = await ops.fetchFileActivity(widget.item);
    if (!mounted) return;
    setState(() {
      _activities = result;
      _isLoading = false;
    });
  }

  @override
  Widget build(BuildContext context) {
    if (!_requested) {
      _requested = true;
      WidgetsBinding.instance.addPostFrameCallback((_) => _load());
    }
    final theme = Theme.of(context);
    final colorScheme = theme.colorScheme;

    if (_isLoading) {
      return const Center(child: CircularProgressIndicator());
    }
    if (_activities.isEmpty) {
      return Center(
        child: Text(
          'No recent activity',
          style: theme.textTheme.titleMedium?.copyWith(
            color: colorScheme.onSurfaceVariant,
          ),
        ),
      );
    }

    return ListView.builder(
      padding: const EdgeInsets.fromLTRB(20, 12, 20, 24),
      itemCount: _activities.length,
      itemBuilder: (context, index) {
        final act = _activities[index];
        return Padding(
          padding: const EdgeInsets.only(bottom: 12),
          child: Container(
            padding: const EdgeInsets.all(16),
            decoration: BoxDecoration(
              color: colorScheme.surfaceContainerLow,
              borderRadius: BorderRadius.circular(20),
              border: Border.all(
                color: colorScheme.outlineVariant.withValues(alpha: 0.2),
              ),
            ),
            child: Row(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Container(
                  padding: const EdgeInsets.all(10),
                  decoration: BoxDecoration(
                    color: colorScheme.primaryContainer,
                    shape: BoxShape.circle,
                  ),
                  child: Icon(
                    act.icon,
                    color: colorScheme.onPrimaryContainer,
                    size: 20,
                  ),
                ),
                const SizedBox(width: 14),
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Expanded(
                            child: Text(
                              act.title,
                              style: theme.textTheme.titleMedium?.copyWith(
                                fontWeight: FontWeight.w600,
                                fontSize: 14,
                              ),
                            ),
                          ),
                          const SizedBox(width: 8),
                          Text(
                            DateFormat.jm().format(act.timestamp),
                            style: theme.textTheme.bodySmall?.copyWith(
                              color: colorScheme.onSurfaceVariant,
                              fontSize: 11,
                            ),
                          ),
                        ],
                      ),
                      const SizedBox(height: 4),
                      Text(
                        act.subject,
                        style: theme.textTheme.bodyMedium?.copyWith(
                          color: colorScheme.onSurfaceVariant,
                          fontSize: 13,
                        ),
                      ),
                      const SizedBox(height: 6),
                      Text(
                        'By ${act.author} • ${DateFormat.MMMd().format(act.timestamp)}',
                        style: theme.textTheme.bodySmall?.copyWith(
                          color: colorScheme.primary,
                          fontWeight: FontWeight.w500,
                          fontSize: 11,
                        ),
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}