import Link from 'next/link'
import SeoIcon, { type SeoIconName } from '@/components/seo/SeoIcon'
import type { SeoPageProfile } from '@/lib/seoPages'
import type { SeoTemplateCopy } from '@/lib/seoTemplateCopy'

interface SectionProps {
  profile: SeoPageProfile
  copy: SeoTemplateCopy
}

export function SeoHero({ profile, copy }: SectionProps) {
  return (
    <section className="max-w-[1200px] mx-auto px-6 py-16 grid grid-cols-1 lg:grid-cols-12 gap-12 items-start mt-8">
      <div className="lg:col-span-6 z-10 flex flex-col justify-center pt-8">
        <div className="font-body text-xs font-semibold tracking-[0.1em] uppercase text-primary mb-6 seo-fade">
          {copy.hero.eyebrow}
        </div>
        <h1 className="font-display font-bold text-[40px] leading-[1.2] tracking-[-0.01em] md:text-[56px] md:leading-[1.1] md:tracking-[-0.02em] text-primary mb-6 seo-fade seo-fade-1">
          {profile.h1}
        </h1>
        <p className="font-body text-lg text-on-surface-variant mb-4 leading-relaxed seo-fade seo-fade-2">{profile.tagline}</p>
        <p className="font-body text-base text-on-surface-variant mb-10 leading-relaxed seo-fade seo-fade-2">{profile.directAnswer}</p>
        <div className="flex flex-col sm:flex-row gap-4 seo-fade seo-fade-3">
          <a
            className="inline-flex justify-center items-center px-8 py-3 bg-ink text-white rounded-full font-bold shadow-lg hover:bg-ink-soft transition-colors duration-300"
            href="#download"
          >
            {copy.hero.ctaPrimary}
          </a>
          <a
            className="inline-flex justify-center items-center px-8 py-3 bg-transparent border-2 border-ink text-ink rounded-full font-bold hover:bg-ink hover:text-white transition-colors duration-300"
            href="#methodology"
          >
            {copy.hero.ctaSecondary}
          </a>
        </div>
        <div className="mt-12 grid grid-cols-2 gap-6 pt-8 border-t border-surface-container-high seo-fade seo-fade-3">
          <div>
            <div className="font-display text-2xl font-semibold text-primary mb-1">{copy.hero.stat1Title}</div>
            <div className="text-xs font-semibold tracking-[0.1em] uppercase text-on-surface-variant">{copy.hero.stat1Label}</div>
          </div>
          <div>
            <div className="font-display text-2xl font-semibold text-primary mb-1">{copy.hero.stat2Title}</div>
            <div className="text-xs font-semibold tracking-[0.1em] uppercase text-on-surface-variant">{copy.hero.stat2Label}</div>
          </div>
        </div>
      </div>
      <div className="lg:col-span-6 flex justify-center items-center seo-fade seo-fade-2">
        <div className="relative w-full max-w-[320px] md:max-w-[380px] h-[550px] md:h-[650px] rounded-3xl overflow-hidden shadow-2xl border-[8px] border-surface-container">
          {/* eslint-disable-next-line @next/next/no-img-element */}
          <img alt={copy.hero.imageAlt} className="w-full h-full object-cover" src="/hero.jpg" />
          <div className="absolute bottom-6 left-1/2 -translate-x-1/2 w-[90%] bg-surface/95 backdrop-blur p-4 rounded-xl border border-surface-container-highest flex items-center gap-3 shadow-xl">
            <div className="w-1.5 h-8 bg-primary rounded-full"></div>
            <div>
              <div className="font-display font-semibold text-sm text-primary mb-0.5">{copy.hero.floatTitle}</div>
              <div className="text-[10px] font-semibold tracking-[0.1em] uppercase text-on-surface-variant">{copy.hero.floatLabel}</div>
            </div>
          </div>
        </div>
      </div>
    </section>
  )
}

export function SeoAdvantage({ profile, copy }: SectionProps) {
  return (
    <section className="max-w-[1200px] mx-auto px-6 py-16 grid grid-cols-1 lg:grid-cols-3 gap-12 border-t border-surface-container-high" id="advantage">
      <div className="lg:col-span-2">
        <div className="mb-8">
          <span className="text-xs font-semibold tracking-[0.1em] uppercase text-primary">{copy.advantage.eyebrow}</span>
        </div>
        <h2 className="font-display font-semibold text-[32px] leading-[1.3] text-primary mb-6">{copy.advantage.heading}</h2>
        <p className="font-body text-lg text-on-surface-variant mb-6">{profile.definitionBlock}</p>
        <div className="text-xs font-semibold tracking-[0.1em] uppercase text-on-surface-variant">
          {copy.advantage.updated}: {profile.lastUpdated}
        </div>
      </div>
      <div className="bg-surface-container rounded-xl p-8 seo-card">
        <div className="flex items-center gap-3 mb-6">
          <SeoIcon name="psychology" className="w-8 h-8 text-primary" />
          <h3 className="font-display font-semibold text-2xl text-primary">{copy.didYouKnow.title}</h3>
        </div>
        <ul className="space-y-6">
          {copy.didYouKnow.items.map((item, index) => (
            <li key={item.title} className={index < copy.didYouKnow.items.length - 1 ? 'border-b border-outline-variant/30 pb-4' : ''}>
              <strong className="block font-body text-primary mb-1">{item.title}</strong>
              <span className="text-sm text-on-surface-variant">{item.body}</span>
            </li>
          ))}
        </ul>
      </div>
    </section>
  )
}

export function SeoMethodology({ copy }: { copy: SeoTemplateCopy }) {
  return (
    <section className="bg-surface-container-low py-16 md:py-[120px]" id="methodology">
      <div className="max-w-[1200px] mx-auto px-6">
        <div className="text-center mb-16">
          <span className="text-xs font-semibold tracking-[0.1em] uppercase text-primary block mb-4">{copy.methodology.eyebrow}</span>
          <h2 className="font-display font-semibold text-[32px] md:text-[40px] leading-[1.2] text-primary">{copy.methodology.title}</h2>
          <p className="font-body text-on-surface-variant max-w-2xl mx-auto mt-4">{copy.methodology.lead}</p>
        </div>
        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-8">
          {copy.methodology.steps.map((step, index) => (
            <div key={step.title} className="bg-surface p-8 rounded-xl shadow-sm border border-surface-container-high seo-card">
              <div className="w-12 h-12 bg-primary-container text-on-primary-container rounded-full flex items-center justify-center font-display font-semibold text-xl mb-6">
                {index + 1}
              </div>
              <h3 className="font-display font-semibold text-lg text-primary mb-3">{step.title}</h3>
              <p className="font-body text-on-surface-variant text-sm">{step.body}</p>
            </div>
          ))}
        </div>
      </div>
    </section>
  )
}

const comparisonIcons: SeoIconName[] = ['check_circle', 'calendar', 'healing', 'sun']

export function SeoComparison({ profile, copy }: SectionProps) {
  const tipLink = profile.relatedLinks[0]

  return (
    <section className="py-16 md:py-24" id="comparison">
      <div className="max-w-[1200px] mx-auto px-6 grid grid-cols-1 lg:grid-cols-12 gap-12">
        <div className="lg:col-span-4">
          <div className="lg:sticky lg:top-32">
            <span className="text-xs font-semibold tracking-[0.1em] uppercase text-primary block mb-4">{copy.comparison.eyebrow}</span>
            <h2 className="font-display font-semibold text-[32px] leading-[1.3] text-primary mb-6">{profile.featureTable.title}</h2>
            <p className="font-body text-on-surface-variant mb-8">{copy.comparison.lead}</p>
            {tipLink && (
              <div className="bg-primary-container/20 p-6 rounded-lg border border-primary-container/30">
                <h4 className="font-display font-semibold text-base text-primary mb-2">{copy.comparison.tipTitle}</h4>
                <p className="text-sm text-on-surface-variant mb-3">{copy.comparison.tipBody}</p>
                <Link className="text-primary text-xs font-semibold tracking-[0.1em] uppercase hover:underline" href={tipLink.href}>
                  {tipLink.label} →
                </Link>
              </div>
            )}
          </div>
        </div>
        <div className="lg:col-span-8 flex flex-col border-t border-surface-container-highest">
          {profile.featureTable.rows.map((row, index) => (
            <div key={row.feature} className="grid grid-cols-1 md:grid-cols-2 gap-8 py-8 border-b border-surface-container-highest items-start">
              <div>
                <div className="flex items-center gap-2 mb-2">
                  <SeoIcon name={comparisonIcons[index % comparisonIcons.length]} className="w-5 h-5 text-primary" />
                  <h3 className="font-display font-semibold text-lg text-primary">{row.feature}</h3>
                </div>
                <div className="text-xs font-semibold tracking-[0.1em] uppercase text-primary mb-2">{copy.comparison.greenlens}</div>
                <p className="font-body text-on-surface-variant text-sm">{row.greenlens}</p>
              </div>
              <div className="md:pt-9">
                <div className="text-xs font-semibold tracking-[0.1em] uppercase text-on-surface-variant/60 mb-2">
                  {profile.featureTable.alternativeLabel}
                </div>
                <p className="font-body text-on-surface-variant/80 text-sm">{row.alternative}</p>
              </div>
            </div>
          ))}
        </div>
      </div>
    </section>
  )
}

export function SeoContentSections({ profile }: { profile: SeoPageProfile }) {
  if (!profile.contentSections || profile.contentSections.length === 0) return null

  return (
    <section className="bg-surface-container-low py-16">
      <div className="max-w-[1200px] mx-auto px-6 grid grid-cols-1 md:grid-cols-2 gap-8 items-start">
        {profile.contentSections.map((section) => (
          <article key={section.title} className="bg-surface p-8 rounded-xl shadow-sm border border-surface-container-high seo-card">
            <span className="text-xs font-semibold tracking-[0.1em] uppercase text-primary block mb-4">{section.eyebrow}</span>
            <h2 className="font-display font-semibold text-2xl text-primary mb-4">{section.title}</h2>
            <p className="font-body text-on-surface-variant text-sm mb-4">{section.body}</p>
            {section.bullets && (
              <ul className="space-y-3">
                {section.bullets.map((item) => (
                  <li key={item} className="flex items-start gap-2 text-sm text-on-surface-variant">
                    <SeoIcon name="check_circle" className="w-4 h-4 mt-0.5 shrink-0 text-primary" />
                    <span>{item}</span>
                  </li>
                ))}
              </ul>
            )}
          </article>
        ))}
      </div>
    </section>
  )
}

export function SeoBestFit({ profile, copy }: SectionProps) {
  return (
    <section className="max-w-[1200px] mx-auto px-6 py-16 grid grid-cols-1 md:grid-cols-2 gap-8">
      <article className="bg-secondary-container/40 rounded-xl p-8 border border-secondary-container">
        <span className="text-xs font-semibold tracking-[0.1em] uppercase text-primary block mb-3">{copy.bestFit.chooseTag}</span>
        <h2 className="font-display font-semibold text-2xl text-primary mb-6">{copy.bestFit.chooseTitle}</h2>
        <ul className="space-y-4">
          {profile.greenLensIf.map((item) => (
            <li key={item} className="flex items-start gap-3 text-sm text-on-surface-variant">
              <SeoIcon name="check_circle" className="w-5 h-5 mt-0.5 shrink-0 text-primary" />
              <span>{item}</span>
            </li>
          ))}
        </ul>
      </article>
      <article className="bg-surface-container rounded-xl p-8 border border-surface-container-high">
        <span className="text-xs font-semibold tracking-[0.1em] uppercase text-on-surface-variant block mb-3">{copy.bestFit.notTag}</span>
        <h2 className="font-display font-semibold text-2xl text-primary mb-6">{copy.bestFit.notTitle}</h2>
        <ul className="space-y-4">
          {profile.notBestIf.map((item) => (
            <li key={item} className="flex items-start gap-3 text-sm text-on-surface-variant">
              <span className="w-5 h-5 mt-0.5 shrink-0 rounded-full border border-outline-variant flex items-center justify-center text-[10px] text-on-surface-variant">
                –
              </span>
              <span>{item}</span>
            </li>
          ))}
        </ul>
      </article>
    </section>
  )
}

export function SeoFaq({ profile, copy }: SectionProps) {
  return (
    <section className="bg-surface-container py-16 md:py-24" id="faq">
      <div className="max-w-[900px] mx-auto px-6">
        <div className="text-center mb-16">
          <h2 className="font-display font-semibold text-[32px] leading-[1.3] text-primary">{copy.faq.title}</h2>
        </div>
        <div className="space-y-6">
          {profile.faqs.map((item) => (
            <div key={item.question} className="bg-surface rounded-lg p-6 shadow-sm">
              <h3 className="font-display font-semibold text-base text-primary mb-2">{item.question}</h3>
              <p className="font-body text-on-surface-variant text-sm">{item.answer}</p>
            </div>
          ))}
        </div>
      </div>
    </section>
  )
}

export function SeoRelated({ profile, copy }: SectionProps) {
  if (profile.relatedLinks.length === 0) return null

  return (
    <section className="max-w-[1200px] mx-auto px-6 py-16">
      <div className="mb-10">
        <span className="text-xs font-semibold tracking-[0.1em] uppercase text-primary block mb-3">{copy.related.tag}</span>
        <h2 className="font-display font-semibold text-[32px] leading-[1.3] text-primary">{copy.related.title}</h2>
      </div>
      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
        {profile.relatedLinks.map((link) => (
          <Link key={link.href} href={link.href} className="bg-surface p-6 rounded-xl border border-surface-container-high seo-card block">
            <h3 className="font-display font-semibold text-lg text-primary mb-2">{link.label}</h3>
            <p className="text-sm text-on-surface-variant">{link.description}</p>
          </Link>
        ))}
      </div>
    </section>
  )
}