import 'package:flutter/material.dart';
import 'medical_screen.dart';

class ServicesScreen extends StatelessWidget {
  const ServicesScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('生活服务')),
      body: Padding(
        padding: const EdgeInsets.all(20),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const Text('服务分类', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
            const SizedBox(height: 16),
            Row(
              children: [
                _serviceCard(context, '🏥', '医疗健康', true, () {
                  Navigator.push(context, MaterialPageRoute(builder: (_) => const MedicalScreen()));
                }),
                const SizedBox(width: 12),
                _serviceCard(context, '🏠', '家政服务', false, null),
                const SizedBox(width: 12),
                _serviceCard(context, '🛒', '生活消费', false, null),
                const SizedBox(width: 12),
                _serviceCard(context, '🔒', '更多', false, null),
              ],
            ),
            const SizedBox(height: 32),
            // Quick access
            const Text('快捷入口', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
            const SizedBox(height: 16),
            _quickAccess(context, Icons.local_hospital, '在线挂号', '预约三甲医院专家号', () {
              Navigator.push(context, MaterialPageRoute(builder: (_) => const MedicalScreen()));
            }),
            _quickAccess(context, Icons.chat_bubble_outline, '在线问诊', '¥19.9/次 专业医生解答', () {
              Navigator.push(context, MaterialPageRoute(builder: (_) => const MedicalScreen()));
            }),
          ],
        ),
      ),
    );
  }

  Widget _serviceCard(BuildContext context, String emoji, String label, bool active, VoidCallback? onTap) {
    return Expanded(
      child: GestureDetector(
        onTap: active ? onTap : () {
          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('$label即将开放', style: const TextStyle(fontSize: 16))));
        },
        child: Container(
          height: 100,
          decoration: BoxDecoration(
            color: active ? const Color(0xFFE3F2FD) : const Color(0xFFF5F5F5),
            borderRadius: BorderRadius.circular(12),
          ),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              Text(emoji, style: const TextStyle(fontSize: 28)),
              const SizedBox(height: 8),
              Text(label, style: TextStyle(fontSize: 13, color: active ? const Color(0xFF1976D2) : const Color(0xFF999999))),
              if (!active) const Text('即将开放', style: TextStyle(fontSize: 11, color: Color(0xFFCCCCCC))),
            ],
          ),
        ),
      ),
    );
  }

  Widget _quickAccess(BuildContext context, IconData icon, String title, String subtitle, VoidCallback onTap) {
    return Card(
      margin: const EdgeInsets.only(bottom: 12),
      child: ListTile(
        onTap: onTap,
        leading: CircleAvatar(backgroundColor: const Color(0xFFE3F2FD), child: Icon(icon, color: const Color(0xFF1976D2))),
        title: Text(title, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
        subtitle: Text(subtitle, style: const TextStyle(fontSize: 14, color: Color(0xFF999999))),
        trailing: const Icon(Icons.chevron_right),
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      ),
    );
  }
}
