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

/// 医生列表页
class DoctorListPage extends ConsumerWidget {
  const DoctorListPage({super.key});
  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final doctors = ref.watch(doctorListProvider);
    return Scaffold(
      appBar: AppBar(title: const Text('选择医生')),
      body: doctors.when(
        data: (list) {
          if (list.isEmpty) {
            return Center(
              child: Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Icon(Icons.person_search, size: 64, color: Colors.grey[300]),
                  const SizedBox(height: 12),
                  Text('暂无可用医生', style: Theme.of(context).textTheme.bodyMedium),
                ],
              ),
            );
          }
          return ListView.builder(
            itemCount: list.length,
            itemBuilder: (ctx, i) {
              final d = list[i];
              return Card(
                margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                child: Padding(
                  padding: const EdgeInsets.all(16),
                  child: Row(children: [
                    CircleAvatar(
                      radius: 28,
                      backgroundColor: const Color(0xFFE6FAF6),
                      child: Text(
                        (d['name'] as String?)?.isNotEmpty == true ? d['name']![0] : '?',
                        style: const TextStyle(fontSize: 22, color: Color(0xFF14B8A6)),
                      ),
                    ),
                    const SizedBox(width: 16),
                    Expanded(
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Row(children: [
                            Text(d['name'] ?? '', style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
                            const SizedBox(width: 8),
                            Text(d['title'] ?? '', style: const TextStyle(fontSize: 14, color: Color(0xFF666666))),
                          ]),
                          const SizedBox(height: 4),
                          Text(d['department'] ?? '', style: const TextStyle(fontSize: 14, color: Color(0xFF14B8A6))),
                          const SizedBox(height: 2),
                          Text(d['introduction'] ?? '', style: const TextStyle(fontSize: 14, color: Color(0xFF999999))),
                        ],
                      ),
                    ),
                    ElevatedButton(
                      onPressed: () => pushRoute(ref, 'consultation', params: {'id': d['id']?.toString() ?? ''}),
                      child: const Text('咨询'),
                    ),
                  ]),
                ),
              );
            },
          );
        },
        loading: () => const Center(child: CircularProgressIndicator()),
        error: (_, _) => Center(
          child: Text('加载失败', style: Theme.of(context).textTheme.bodyMedium),
        ),
      ),
    );
  }
}

/// 问诊对话页
class DoctorChatPage extends ConsumerWidget {
  final String id;
  const DoctorChatPage({super.key, required this.id});
  @override
  Widget build(BuildContext context, WidgetRef ref) => Scaffold(
    appBar: AppBar(title: const Text('问诊对话')),
    body: Center(
      child: Text('问诊 #$id', style: Theme.of(context).textTheme.bodyLarge),
    ),
  );
}