'use client';

import { motion } from 'framer-motion';
import { useInView } from 'framer-motion';
import { useRef, useMemo } from 'react';
import Link from 'next/link';
import { Code, Cloud, BarChart3, Shield, ArrowRight } from 'lucide-react';
import { Card, CardContent } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { useServices } from '@/hooks/use-services';

const iconMap: Record<string, React.ComponentType<{ className?: string }>> = {
  Code,
  Cloud,
  BarChart3,
  Shield,
};

interface ServicesConfig {
  enabled?: boolean;
  items?: string[];
}

interface ServicesSectionProps {
  config?: ServicesConfig;
}

export function ServicesSection({ config }: ServicesSectionProps) {
  const ref = useRef(null);
  const isInView = useInView(ref, { once: true, margin: '-100px' });
  const { services, loading, error } = useServices();

  const filteredServices = useMemo(() => {
    if (!services || services.length === 0) {
      return [];
    }
    if (!config?.items || config.items.length === 0) {
      return services;
    }
    return services.filter(service => config.items?.includes(service.id));
  }, [services, config]);

  if (loading) {
    return (
      <section id="services" aria-labelledby="services-heading" className="py-24 bg-white relative overflow-hidden" ref={ref}>
        <div className="container-wide relative z-10">
          <div className="text-center">
            <p className="text-lg text-[#5C5C5C]">加载中...</p>
          </div>
        </div>
      </section>
    );
  }

  if (error) {
    return (
      <section id="services" aria-labelledby="services-heading" className="py-24 bg-white relative overflow-hidden" ref={ref}>
        <div className="container-wide relative z-10">
          <div className="text-center">
            <p className="text-lg text-red-600">加载服务信息失败，请稍后重试</p>
          </div>
        </div>
      </section>
    );
  }

  return (
    <section id="services" aria-labelledby="services-heading" className="py-24 bg-white relative overflow-hidden" ref={ref}>
      <div className="absolute top-1/3 left-0 w-[400px] h-[400px] bg-[rgba(196,30,58,0.03)] rounded-full blur-3xl" />
      <div className="absolute top-1/3 right-0 w-[300px] h-[300px] bg-[rgba(196,30,58,0.02)] rounded-full blur-3xl" />
      
      <div className="container-wide relative z-10">
        <motion.div
          initial={{ opacity: 0, y: 20 }}
          animate={isInView ? { opacity: 1, y: 0 } : {}}
          transition={{ duration: 0.6 }}
          className="text-center max-w-3xl mx-auto mb-16"
        >
          <h2 id="services-heading" className="text-4xl md:text-5xl font-bold text-[#1C1C1C] mb-4">
            我们的 <span className="text-[#C41E3A]">核心业务</span>
          </h2>
          <p className="text-lg text-[#5C5C5C] max-w-2xl mx-auto">
            专业技术团队，为您提供全方位的数字化解决方案
          </p>
        </motion.div>

        {filteredServices.length > 0 ? (
          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
            {filteredServices.map((service, index) => {
              const Icon = iconMap[service.icon];
              return (
                <motion.div
                  key={service.id}
                  initial={{ opacity: 0, y: 20 }}
                  whileInView={{ opacity: 1, y: 0 }}
                  viewport={{ once: true }}
                  transition={{ duration: 0.5, delay: index * 0.1 }}
                >
                  <Link href={`/services/${service.id}`}>
                    <Card className="p-6 h-full group cursor-pointer border-[#E5E5E5] hover:border-[#C41E3A] transition-colors">
                      <CardContent className="p-0">
                        <div className="w-12 h-12 rounded-xl bg-[#F5F5F5] flex items-center justify-center mb-4 group-hover:bg-[#C41E3A] transition-all duration-300">
                          {Icon && <Icon className="w-6 h-6 text-[#1C1C1C] group-hover:text-white transition-colors" />}
                        </div>
                        <h3 className="text-xl font-semibold text-[#1C1C1C] mb-3 group-hover:text-[#C41E3A] transition-colors">{service.title}</h3>
                        <p className="text-[#5C5C5C] text-sm leading-relaxed">{service.description}</p>
                        <div className="mt-4 flex items-center text-[#C41E3A] text-sm font-medium opacity-0 group-hover:opacity-100 transition-opacity">
                          了解详情
                          <ArrowRight className="ml-1 w-4 h-4" />
                        </div>
                      </CardContent>
                    </Card>
                  </Link>
                </motion.div>
              );
            })}
          </div>
        ) : (
          <div className="text-center py-12">
            <p className="text-lg text-[#5C5C5C]">暂无服务信息</p>
          </div>
        )}

        <motion.div
          initial={{ opacity: 0, y: 20 }}
          animate={isInView ? { opacity: 1, y: 0 } : {}}
          transition={{ duration: 0.6, delay: 0.4 }}
          className="text-center mt-12"
        >
          <Button variant="outline" size="lg" className="group" asChild>
            <Link href="/services">
              查看全部服务
              <ArrowRight className="ml-2 w-4 h-4 transition-transform group-hover:translate-x-1" />
            </Link>
          </Button>
        </motion.div>
      </div>
    </section>
  );
}