'use client';

import { motion } from 'framer-motion';
import { ArrowUpRight, Factory, ShoppingCart, Heart, GraduationCap, Shield, Truck, type LucideIcon } from 'lucide-react';
import { StaticLink } from '@/components/ui/static-link';
import { CTAButton } from '@/components/ui/cta-button';
import { type Solution } from '@/lib/constants/solutions';
import type { Product } from '@/lib/constants/products';

const EASE_OUT = [0.22, 1, 0.36, 1] as const;

type PageCopy = Record<string, unknown>;

const INDUSTRY_ICONS: Record<string, LucideIcon> = {
  制造业: Factory,
  贸易零售: ShoppingCart,
  医疗健康: Heart,
  教育培训: GraduationCap,
  金融服务: Shield,
  物流运输: Truck,
};

function HeroSection({ pageCopy }: { pageCopy?: PageCopy | null }) {
  const heroTitle1 = (pageCopy?.solutionsHeroTitle1 as string) || '专注行业场景的';
  const heroTitle2 = (pageCopy?.solutionsHeroTitle2 as string) || '解决方案';
  const heroDescriptionLines = ((pageCopy?.solutionsHeroDescription as string) ||
    '端到端交付可量化的业务成果。\n基于自研产品矩阵，为制造、零售、教育、医疗、金融、物流六大行业沉淀最佳实践。').split('\n');
  const ctaPrimary = (pageCopy?.solutionsCtaPrimary as string) || '立即咨询';
  const ctaSecondary = (pageCopy?.solutionsCtaSecondary as string) || '浏览产品';

  return (
    <section className="relative min-h-[85vh] flex items-center overflow-hidden bg-bg-primary">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10 w-full py-28 sm:py-36 md:py-44 lg:py-56">
        <div className="max-w-4xl">
          <motion.h1
            initial={{ opacity: 0, y: 40 }}
            animate={{ opacity: 1, y: 0 }}
            transition={{ duration: 0.3, delay: 0.2, ease: EASE_OUT }}
            className="text-4xl sm:text-5xl md:text-6xl lg:text-7xl xl:text-8xl font-black text-ink leading-[0.92] tracking-tightest mb-10 sm:mb-12 md:mb-16"
          >
            <div className="block">{heroTitle1}</div>
            <div className="block mt-4 sm:mt-6">
              <span className="relative inline-block">
                <span className="relative text-brand font-black">
                  {heroTitle2}
                  <motion.span
                    className="absolute -bottom-2 left-0 w-full h-[3px] bg-brand"
                    style={{ transformOrigin: 'left' }}
                    initial={{ scaleX: 0 }}
                    animate={{ scaleX: 1 }}
                    transition={{ duration: 0.3, delay: 1.2, ease: EASE_OUT }}
                  />
                </span>
              </span>
            </div>
          </motion.h1>

          <motion.p
            initial={{ opacity: 0, y: 30 }}
            animate={{ opacity: 1, y: 0 }}
            transition={{ duration: 0.3, delay: 0.5, ease: EASE_OUT }}
            className="text-lg md:text-xl text-text-secondary max-w-2xl leading-relaxed mb-12 sm:mb-16"
          >
            {heroDescriptionLines.map((line, i) => (
              <span key={i}>
                {i > 0 && <br className="hidden sm:block" />}
                {line}
              </span>
            ))}
          </motion.p>

          <motion.div
            initial={{ opacity: 0, y: 30 }}
            animate={{ opacity: 1, y: 0 }}
            transition={{ duration: 0.3, delay: 0.7, ease: EASE_OUT }}
            className="flex flex-col sm:flex-row gap-4 sm:gap-6"
          >
            <CTAButton href="/contact" dataTestId="solutions-hero-primary" className="min-h-[52px]">
              {ctaPrimary}
            </CTAButton>
            <CTAButton href="/products" variant="secondary" dataTestId="solutions-hero-secondary" className="min-h-[52px]">
              {ctaSecondary}
            </CTAButton>
          </motion.div>

          <motion.div
            initial={{ opacity: 0, y: 30 }}
            animate={{ opacity: 1, y: 0 }}
            transition={{ duration: 0.3, delay: 0.9, ease: EASE_OUT }}
            className="grid grid-cols-3 gap-8 mt-20 pt-12 border-t border-border-primary max-w-xl"
          >
            <div>
              <div className="text-3xl sm:text-4xl font-black text-ink tracking-tight leading-none mb-2">
                6<span className="text-brand">大</span>
              </div>
              <div className="text-sm text-text-muted">行业覆盖</div>
            </div>
            <div>
              <div className="text-3xl sm:text-4xl font-black text-ink tracking-tight leading-none mb-2">
                端到<span className="text-brand">端</span>
              </div>
              <div className="text-sm text-text-muted">交付模式</div>
            </div>
            <div>
              <div className="text-3xl sm:text-4xl font-black text-ink tracking-tight leading-none mb-2">
                定制<span className="text-brand">化</span>
              </div>
              <div className="text-sm text-text-muted">方案特点</div>
            </div>
          </motion.div>
        </div>
      </div>
    </section>
  );
}

function SolutionCard({ solution, index, products, featured = false }: { solution: Solution; index: number; products?: Product[]; featured?: boolean }) {
  const productLookup = products ?? [];
  const Icon = INDUSTRY_ICONS[solution.industry] || Factory;
  const recommendedProductNames = (solution.recommendedProducts ?? [])
    .map((pid) => productLookup.find((p) => p.id === pid)?.title)
    .filter(Boolean) as string[];

  return (
    <motion.div
      data-testid={`solution-card-${solution.id}`}
      data-featured={featured ? 'true' : 'false'}
      className={featured ? 'md:col-span-2 bg-bg-elevated' : 'md:col-span-1 bg-bg-elevated'}
      initial={{ opacity: 0, y: 30 }}
      whileInView={{ opacity: 1, y: 0 }}
      viewport={{ once: true, margin: '-60px' }}
      transition={{ duration: 0.3, delay: index * 0.06, ease: EASE_OUT }}
    >
      <StaticLink
        href={`/solutions/${solution.id}`}
        className="group relative block transition-all duration-300 hover:bg-bg-secondary hover:shadow-lg hover:-translate-y-1 bg-bg-elevated border border-border-primary hover:border-brand/20 after:absolute after:bottom-0 after:left-0 after:h-0.5 after:w-full after:origin-left after:scale-x-0 after:bg-brand after:transition-transform after:duration-300 group-hover:after:scale-x-100"
      >
        <div className="relative z-10 p-8 sm:p-10 md:p-12">
          <div className="flex items-center gap-3 mb-6">
            <Icon className="w-5 h-5 text-text-muted" strokeWidth={1.5} />
            <h3 className="text-lg font-bold text-text-primary">
              {solution.industry}
            </h3>
          </div>

          <div className="mb-4">
            <div className="text-xs text-text-muted mb-2">核心痛点</div>
            <p className="text-sm text-text-secondary leading-relaxed">
              {solution.painPoints?.join('、')}
            </p>
          </div>

          <div className="grid grid-cols-2 gap-2 mb-4">
            {solution.outcomes?.map((o) => (
              <div key={o.label} className="p-2 bg-bg-secondary">
                <div className="text-base font-bold text-brand">{o.value}</div>
                <div className="text-xs text-text-muted">{o.label}</div>
              </div>
            ))}
          </div>

          <div className="pt-4 border-t border-border-primary">
            <div className="text-xs text-text-muted mb-2">推荐产品组合</div>
            <div className="flex flex-wrap gap-2">
              {recommendedProductNames.map((name) => (
                <span key={name} className="px-2 py-1 text-xs bg-bg-secondary text-text-secondary">
                  {name.replace('睿新', '')}
                </span>
              ))}
            </div>
          </div>

          <div className="inline-flex items-center gap-2 text-sm font-semibold text-text-secondary group-hover:text-brand transition-colors duration-300 mt-6">
            <span>了解详情</span>
            <ArrowUpRight className="w-4 h-4 group-hover:translate-x-0.5 group-hover:-translate-y-0.5 transition-transform duration-300" />
          </div>
        </div>
      </StaticLink>
    </motion.div>
  );
}

function SolutionsGridSection({ solutions, products, pageCopy }: { solutions: Solution[]; products?: Product[]; pageCopy?: PageCopy | null }) {
  const gridTitle = (pageCopy?.solutionsGridTitle as string) || '行业解决方案';
  const gridDescription = (pageCopy?.solutionsGridDescription as string) || '每个方案都明确推荐产品组合和服务包，确保落地效果';
  return (
    <section className="relative py-20 sm:py-28 md:py-36 lg:py-44 overflow-hidden bg-bg-secondary">
      <div className="absolute top-0 left-0 right-0 h-px bg-border-primary" />
      <div className="absolute bottom-0 left-0 right-0 h-px bg-border-primary" />

      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10">
        <motion.div
          initial={{ opacity: 0, y: 30 }}
          whileInView={{ opacity: 1, y: 0 }}
          viewport={{ once: true, margin: '-80px' }}
          transition={{ duration: 0.3, ease: EASE_OUT }}
          className="max-w-3xl mb-16 sm:mb-20 md:mb-24"
        >
          <h2 className="text-3xl sm:text-4xl md:text-5xl lg:text-6xl font-extrabold text-ink tracking-tight leading-[0.95]">
            {gridTitle}
          </h2>
          <p className="mt-6 text-lg text-text-secondary leading-relaxed">
            {gridDescription}
          </p>
        </motion.div>

        <div className="grid md:grid-cols-2 gap-px bg-border-primary">
          {solutions.map((solution, index) => (
            <SolutionCard key={solution.id} solution={solution} index={index} products={products} featured={index === 0} />
          ))}
        </div>
      </div>
    </section>
  );
}

function CTASection({ pageCopy }: { pageCopy?: PageCopy | null }) {
  const ctaTitle = (pageCopy?.solutionsCtaTitle as string) || '告诉我们您的行业场景';
  const ctaDescription = (pageCopy?.solutionsCtaDescription as string) || '无论您处于哪个行业、哪个数字化阶段，我们都能为您推荐最合适的产品组合和服务包。';
  return (
    <section className="relative py-20 sm:py-28 md:py-36 lg:py-44 overflow-hidden bg-bg-primary">
      <div className="max-w-container mx-auto px-4 sm:px-6 lg:px-10 relative z-10">
        <motion.div
          initial={{ opacity: 0, y: 30 }}
          whileInView={{ opacity: 1, y: 0 }}
          viewport={{ once: true, margin: '-80px' }}
          transition={{ duration: 0.3, ease: EASE_OUT }}
          className="max-w-3xl"
        >
          <h2 className="text-3xl sm:text-4xl md:text-5xl lg:text-6xl font-extrabold text-ink tracking-tight leading-[0.95] mb-8">
            {ctaTitle}
          </h2>
          <p className="text-lg text-text-secondary leading-relaxed mb-10">
            {ctaDescription}
          </p>
          <div className="flex flex-col sm:flex-row gap-4 sm:gap-6">
            <CTAButton href="/contact" dataTestId="solutions-bottom-primary" className="min-h-[52px]">
              获取定制方案
            </CTAButton>
            <CTAButton href="/products" variant="secondary" dataTestId="solutions-bottom-secondary" className="min-h-[52px]">
              浏览产品
            </CTAButton>
          </div>
        </motion.div>
      </div>
    </section>
  );
}

export default function SolutionsContentV3({ solutions: solutionsProp, products, pageCopy }: { solutions?: Solution[]; products?: Product[]; pageCopy?: PageCopy | null }) {
  const solutions = solutionsProp ?? [];

  return (
    <main className="bg-bg-primary text-ink">
      <HeroSection pageCopy={pageCopy} />
      <SolutionsGridSection solutions={solutions} products={products} pageCopy={pageCopy} />
      <CTASection pageCopy={pageCopy} />
    </main>
  );
}