import 'package:flutter/material.dart';

import '../../../models/profile.model.dart';
import '../../../utils/programmer_task_ledger.dart';
import '../../../widgets/app_section_header.dart';
import '../../../widgets/m3_card.dart';

/// Per-contributor time breakdown for a task: the assignee's running duration
/// plus each helper's logged minutes, and the total.
class TimeLedgerCard extends StatelessWidget {
  const TimeLedgerCard({
    super.key,
    required this.ledger,
    required this.profileById,
  });

  final TaskTimeLedger ledger;
  final Map<String, Profile> profileById;

  @override
  Widget build(BuildContext context) {
    if (ledger.total == Duration.zero) return const SizedBox.shrink();
    final tt = Theme.of(context).textTheme;
    final cs = Theme.of(context).colorScheme;

    return M3Card.outlined(
      child: Padding(
        padding: const EdgeInsets.all(14),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            AppSectionHeader(
              'Time ledger',
              trailing: Text(
                formatDurationHm(ledger.total),
                style: tt.titleSmall?.copyWith(fontWeight: FontWeight.w700),
              ),
            ),
            for (final entry in ledger.all)
              Padding(
                padding: const EdgeInsets.symmetric(vertical: 4),
                child: Row(
                  children: [
                    Icon(
                      entry.isAssignee
                          ? Icons.play_circle_outline
                          : Icons.volunteer_activism_outlined,
                      size: 16,
                      color: cs.onSurfaceVariant,
                    ),
                    const SizedBox(width: 8),
                    Expanded(
                      child: Text(
                        profileById[entry.userId]?.fullName ?? 'Unknown',
                        style: tt.bodyMedium,
                        overflow: TextOverflow.ellipsis,
                      ),
                    ),
                    if (entry.isAssignee)
                      Padding(
                        padding: const EdgeInsets.only(right: 8),
                        child: Text('assignee',
                            style: tt.bodySmall
                                ?.copyWith(color: cs.onSurfaceVariant)),
                      ),
                    Text(
                      formatDurationHm(entry.duration),
                      style: tt.bodyMedium?.copyWith(fontWeight: FontWeight.w600),
                    ),
                  ],
                ),
              ),
          ],
        ),
      ),
    );
  }
}