import 'package:flutter/material.dart';
import 'package:p_tits_pas/models/assistante_maternelle_model.dart';
import 'package:p_tits_pas/models/dossier_list_item.dart';
import 'package:p_tits_pas/utils/am_vigilance.dart';
import 'package:p_tits_pas/services/auth_service.dart';
import 'package:p_tits_pas/services/user_service.dart';
import 'package:p_tits_pas/utils/staff_deletion_rights.dart';
import 'package:p_tits_pas/widgets/admin/common/admin_am_edit_modal.dart';
import 'package:p_tits_pas/widgets/admin/common/admin_user_card.dart';
import 'package:p_tits_pas/widgets/admin/common/suppression_confirm_dialog.dart';
import 'package:p_tits_pas/widgets/admin/common/user_list.dart';

class AssistanteMaternelleManagementWidget extends StatefulWidget {
  final String searchQuery;
  final int? capacityMin;

  const AssistanteMaternelleManagementWidget({
    super.key,
    required this.searchQuery,
    this.capacityMin,
  });

  @override
  State<AssistanteMaternelleManagementWidget> createState() =>
      _AssistanteMaternelleManagementWidgetState();
}

class _AssistanteMaternelleManagementWidgetState
    extends State<AssistanteMaternelleManagementWidget> {
  bool _isLoading = false;
  String? _error;
  List<AssistanteMaternelleModel> _assistantes = [];
  bool _canDelete = false;

  @override
  void initState() {
    super.initState();
    _loadRights();
    _loadAssistantes();
  }

  @override
  void dispose() => super.dispose();

  Future<void> _loadRights() async {
    final user = await AuthService.getCurrentUser();
    if (!mounted) return;
    setState(() => _canDelete = canDeleteMetier(user?.role));
  }

  Future<void> _loadAssistantes() async {
    setState(() {
      _isLoading = true;
      _error = null;
    });
    try {
      final list = await UserService.getAssistantesMaternelles();
      if (!mounted) return;
      setState(() {
        _assistantes = list;
        _isLoading = false;
      });
    } catch (e) {
      if (!mounted) return;
      setState(() {
        _error = e.toString();
        _isLoading = false;
      });
    }
  }

  Future<void> _confirmDelete(AssistanteMaternelleModel am) async {
    final num = (am.user.numeroDossier ?? '').trim();
    final name = formatDossierPersonLabel(
      nom: am.user.nom,
      prenom: am.user.prenom,
      email: am.user.email,
    );
    final confirmed = await showSuppressionConfirmDialog(
      context,
      title: 'Supprimer l\'assistante maternelle',
      subtitle: num.isEmpty ? null : 'Dossier $num',
      people: [SuppressionPersonLine.am(name)],
      footnotes: const [
        'Le compte et le dossier AM seront supprimés.',
        'Les enfants accueillis ne seront pas supprimés '
            '(placements clos).',
      ],
    );
    if (!confirmed || !mounted) return;

    try {
      final result = await UserService.deleteUser(am.user.id);
      if (!mounted) return;
      final msg = (result['message'] ?? 'AM supprimée.').toString();
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(msg)));
      await _loadAssistantes();
    } catch (e) {
      if (!mounted) return;
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text(
            e is Exception
                ? e.toString().replaceFirst('Exception: ', '')
                : 'Erreur suppression',
          ),
        ),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    final query = widget.searchQuery.toLowerCase();
    final filteredAssistantes = _assistantes.where((am) {
      final matchesName = am.user.fullName.toLowerCase().contains(query) ||
          am.user.email.toLowerCase().contains(query) ||
          (am.residenceCity?.toLowerCase().contains(query) ?? false);
      final matchesCapacity = widget.capacityMin == null ||
          (am.maxChildren != null && am.maxChildren! >= widget.capacityMin!);
      return matchesName && matchesCapacity;
    }).toList();

    return UserList(
      isLoading: _isLoading,
      error: _error,
      isEmpty: filteredAssistantes.isEmpty,
      emptyMessage: 'Aucune assistante maternelle trouvée.',
      itemCount: filteredAssistantes.length,
      itemBuilder: (context, index) {
        final assistante = filteredAssistantes[index];
        final vigilance = amPlacesVigilanceMessage(assistante);
        return AdminUserCard(
          title: assistante.user.fullName,
          avatarUrl: assistante.user.photoUrl,
          fallbackIcon: Icons.face,
          vigilanceTooltip: vigilance,
          onCardTap: () => _openAssistanteDetails(assistante),
          subtitleLines: [
            assistante.user.email,
            'Zone : ${assistante.residenceCity ?? 'N/A'} | Capacité : ${assistante.maxChildren ?? 0}',
          ],
          actions: [
            IconButton(
              icon: const Icon(Icons.edit),
              tooltip: 'Modifier',
              onPressed: () {
                _openAssistanteDetails(assistante);
              },
            ),
            if (_canDelete)
              suppressionIconButton(
                onPressed: () => _confirmDelete(assistante),
              ),
          ],
        );
      },
    );
  }

  void _openAssistanteDetails(AssistanteMaternelleModel assistante) {
    showDialog<void>(
      context: context,
      builder: (context) => AdminAmEditModal(
        assistante: assistante,
        onSaved: _loadAssistantes,
      ),
    );
  }
}