import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../core/app_colors.dart';
import '../../core/navigation_provider.dart';
import '../../providers/data_providers.dart' show adminServiceProvider;

class AdminDoctorsPage extends ConsumerStatefulWidget {
  const AdminDoctorsPage({super.key});
  @override
  ConsumerState<AdminDoctorsPage> createState() => _AdminDoctorsPageState();
}

class _AdminDoctorsPageState extends ConsumerState<AdminDoctorsPage> {
  List<Map<String, dynamic>> _doctors = [];
  bool _loading = true;

  @override
  void initState() {
    super.initState();
    _load();
  }

  Future<void> _load() async {
    setState(() => _loading = true);
    try {
      final res = await ref.read(adminServiceProvider).getDoctors();
      if (res['code'] == 0 && mounted) {
        setState(() {
          _doctors = List<Map<String, dynamic>>.from(res['data'] ?? []);
          _loading = false;
        });
      }
    } catch (_) {
      if (mounted) setState(() => _loading = false);
    }
  }

  Future<void> _toggleActive(String id) async {
    try {
      await ref.read(adminServiceProvider).toggleDoctorActive(id);
      _load();
    } catch (_) {}
  }

  Future<void> _delete(String id) async {
    final ok = await showDialog<bool>(
      context: context,
      builder: (ctx) => AlertDialog(
        title: const Text('确认删除'),
        content: const Text('删除后患者关联将被清除，确定吗？'),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(ctx, false),
            child: const Text('取消'),
          ),
          TextButton(
            onPressed: () => Navigator.pop(ctx, true),
            child: const Text('删除'),
            style: TextButton.styleFrom(foregroundColor: AppColors.error),
          ),
        ],
      ),
    );
    if (ok == true) {
      try {
        await ref.read(adminServiceProvider).deleteDoctor(id);
        _load();
      } catch (_) {}
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: AppColors.pageGrey,
      floatingActionButton: FloatingActionButton(
        backgroundColor: AppColors.primary,
        onPressed: () => pushRoute(ref, 'adminAddDoctor'),
        child: const Icon(Icons.add, color: Colors.white),
      ),
      body: _loading
          ? const Center(child: CircularProgressIndicator())
          : _doctors.isEmpty
          ? const Center(
              child: Text(
                '暂无医生',
                style: TextStyle(color: AppColors.textHint, fontSize: 16),
              ),
            )
          : ListView.builder(
              padding: const EdgeInsets.all(16),
              itemCount: _doctors.length,
              itemBuilder: (_, i) {
                final d = _doctors[i];
                final active = d['isActive'] != false;
                return Card(
                  margin: const EdgeInsets.only(bottom: 10),
                  elevation: 0,
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(14),
                    side: const BorderSide(color: AppColors.border),
                  ),
                  child: Padding(
                    padding: const EdgeInsets.all(14),
                    child: Row(
                      children: [
                        CircleAvatar(
                          backgroundColor: active
                              ? AppColors.successLight
                              : AppColors.background,
                          child: Icon(
                            Icons.local_hospital,
                            size: 20,
                            color: active
                                ? AppColors.success
                                : AppColors.textHint,
                          ),
                        ),
                        const SizedBox(width: 12),
                        Expanded(
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Row(
                                children: [
                                  Text(
                                    d['name'] ?? '',
                                    style: const TextStyle(
                                      fontSize: 16,
                                      fontWeight: FontWeight.w600,
                                    ),
                                  ),
                                  const SizedBox(width: 8),
                                  if (!active)
                                    Container(
                                      padding: const EdgeInsets.symmetric(
                                        horizontal: 6,
                                        vertical: 2,
                                      ),
                                      decoration: BoxDecoration(
                                        color: AppColors.errorLight,
                                        borderRadius: BorderRadius.circular(4),
                                      ),
                                      child: const Text(
                                        '已停用',
                                        style: TextStyle(
                                          fontSize: 10,
                                          color: AppColors.error,
                                        ),
                                      ),
                                    ),
                                ],
                              ),
                              const SizedBox(height: 4),
                              Text(
                                '${d['title'] ?? ''} 路 ${d['department'] ?? ''}',
                                style: const TextStyle(
                                  fontSize: 13,
                                  color: AppColors.textSecondary,
                                ),
                              ),
                              if (d['professionalDirection'] != null)
                                Text(
                                  d['professionalDirection']!,
                                  style: const TextStyle(
                                    fontSize: 12,
                                    color: AppColors.textHint,
                                  ),
                                ),
                            ],
                          ),
                        ),
                        PopupMenuButton<String>(
                          onSelected: (v) {
                            if (v == 'toggle') _toggleActive(d['id']);
                            if (v == 'delete') _delete(d['id']);
                          },
                          itemBuilder: (_) => [
                            PopupMenuItem(
                              value: 'toggle',
                              child: Text(active ? '停用' : '启用'),
                            ),
                            const PopupMenuItem(
                              value: 'delete',
                              child: Text(
                                '删除',
                                style: TextStyle(color: AppColors.error),
                              ),
                            ),
                          ],
                        ),
                      ],
                    ),
                  ),
                );
              },
            ),
    );
  }
}