'use client';

import { motion } from 'framer-motion';
import { useInView } from 'framer-motion';
import { useRef } from 'react';
import Link from 'next/link';
import { Card, CardContent } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import { CASES } from '@/lib/constants';
import { ArrowRight, Building2, TrendingUp } from 'lucide-react';

export function CasesSection() {
  const ref = useRef(null);
  const isInView = useInView(ref, { once: true, margin: '-100px' });

  const featuredCases = CASES.slice(0, 3);

  return (
    <section id="cases" 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 className="text-4xl md:text-5xl font-bold text-[#1C1C1C] mb-4">
            与谁同行，<span className="text-[#C41E3A]">决定能走多远</span>
          </h2>
          <p className="text-lg text-[#5C5C5C] max-w-2xl mx-auto">
            我们与优秀的企业同行，共同成长，共创未来
          </p>
        </motion.div>

        <div className="grid grid-cols-1 md:grid-cols-3 gap-8">
          {featuredCases.map((caseItem, index) => (
            <motion.div
              key={caseItem.id}
              initial={{ opacity: 0, y: 20 }}
              animate={isInView ? { opacity: 1, y: 0 } : {}}
              transition={{ duration: 0.5, delay: 0.1 + index * 0.1 }}
            >
              <Link href={`/cases/${caseItem.id}`}>
                <Card className="h-full group cursor-pointer border-[#E5E5E5] hover:border-[#C41E3A] transition-colors overflow-hidden">
                  <div className="relative h-40 bg-gradient-to-br from-[#F5F5F5] to-[#E5E5E5] flex items-center justify-center">
                    <Building2 className="w-16 h-16 text-[#C41E3A]/20 group-hover:scale-110 transition-transform duration-300" />
                    <div className="absolute top-4 right-4">
                      <Badge className="bg-white/90 text-[#1C1C1C] hover:bg-white">
                        {caseItem.industry}
                      </Badge>
                    </div>
                  </div>
                  <CardContent className="p-6">
                    <div className="flex items-center gap-2 mb-3">
                      <Building2 className="w-4 h-4 text-[#C41E3A]" />
                      <span className="text-sm text-[#5C5C5C]">{caseItem.client}</span>
                    </div>
                    <h3 className="text-lg font-semibold text-[#1C1C1C] mb-3 group-hover:text-[#C41E3A] transition-colors">
                      {caseItem.title}
                    </h3>
                    <p className="text-[#5C5C5C] text-sm line-clamp-2 mb-4">
                      {caseItem.description}
                    </p>
                    {caseItem.results.length > 0 && (
                      <div className="flex items-center gap-2 text-[#C41E3A]">
                        <TrendingUp className="w-4 h-4" />
                        <span className="text-sm font-medium">{caseItem.results[0].value}</span>
                        <span className="text-sm text-[#5C5C5C]">{caseItem.results[0].label}</span>
                      </div>
                    )}
                  </CardContent>
                </Card>
              </Link>
            </motion.div>
          ))}
        </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="/cases">
              查看更多案例
              <ArrowRight className="ml-2 w-4 h-4 transition-transform group-hover:translate-x-1" />
            </Link>
          </Button>
        </motion.div>
      </div>
    </section>
  );
}