import { ArrowRight, Check, Minus } from 'lucide-react';
import type { ReactNode } from 'react';
import ScrollReveal from '@/components/ScrollReveal';

const ACCENT = '#e18300';

type CellValue = string | boolean | null;

interface SpecRow {
  label: string;
  value: CellValue;
}

const defaultSpecs: SpecRow[] = [
  { label: 'Technologie', value: 'Résine acrylique élastomère\n+ finition Top Coat anti-UV' },
  { label: 'Supports', value: 'Bitume > 1 an\nEPDM et PVC > 10 ans\nTuiles, ardoises, fibrociment' },
  { label: 'Indice de réflectivité — SRI (état neuf)', value: '107' },
  { label: 'Système pour revêtement', value: 'Base Coat 2 à 3 kg/m²\n+ voile de renfort optionnel\n+ Top Coat' },
  { label: "Couche d'entretien à prévoir dans", value: '20 ans' },
  { label: "Protection renforcée contre l'encrassement", value: true },
  { label: 'Prime CEE', value: 'Éligible' },
];

const Cell = ({ value }: { value: CellValue }) => {
  if (value === true) {
    return (
      <div className="w-6 h-6 rounded-full flex items-center justify-center bg-white/15">
        <Check className="w-3.5 h-3.5 text-white" strokeWidth={2.5} />
      </div>
    );
  }
  if (value === false || value === null) {
    return <Minus className="w-4 h-4 text-white/25" strokeWidth={1.5} />;
  }
  return (
    <span className="text-sm leading-snug whitespace-pre-line font-body text-white">
      {value}
    </span>
  );
};

interface CovaSealSpecsProps {
  badge?: string;
  titre?: ReactNode;
  intro?: ReactNode;
  specs?: SpecRow[];
  nomColonne?: string;
  footnote?: string;
}

const CovaSealSpecs = ({
  badge = 'Caractéristiques techniques',
  titre,
  intro,
  specs = defaultSpecs,
  nomColonne = 'CovaSeal 20',
  footnote = 'SRI mesuré selon norme ASTM 1980 · Garantie fabricant 20 ans · Données Covalba R&D',
}: CovaSealSpecsProps = {}) => (
  <section className="py-16 lg:py-24 bg-white" id="specs">
    <div className="container mx-auto px-4 lg:px-8 max-w-3xl">
      <ScrollReveal>
        <div className="mb-8">
          <p
            className="text-[10px] uppercase tracking-[0.25em] font-semibold font-body mb-3"
            style={{ color: ACCENT }}
          >
            {badge}
          </p>
          <h2
            className="font-satoshi text-3xl sm:text-4xl lg:text-5xl font-black text-foreground !leading-[1.05]"
            style={{ letterSpacing: '-0.03em' }}
          >
            {titre ?? (<>
            Les caractéristiques
            <br />
            <span className="text-foreground/45">de CovaSeal 20.</span>
            </>)}
          </h2>
          <p className="text-foreground/70 text-base font-body leading-relaxed mt-5 max-w-2xl">
            {intro ?? (<>
            Étanchéité certifiée, réflectivité cool roof, durabilité sur deux décennies.
            CovaSeal 20 s'adresse aux toitures industrielles et tertiaires qui demandent
            le meilleur des deux mondes sans repasser par une rénovation lourde.
            </>)}
          </p>
        </div>
      </ScrollReveal>

      <ScrollReveal>
        {/* ─── Desktop : colonne CovaSeal 20 en élévation ─── */}
        <div className="hidden sm:block">
          {/* Header */}
          <div className="grid grid-cols-[3fr_2fr]">
            <div />
            <div className="bg-foreground rounded-t-2xl px-3 pt-5 pb-5 text-center relative z-10 shadow-[0_-6px_20px_rgba(0,0,0,0.06)]">
              <p className="text-[11px] font-semibold text-white/70 font-body uppercase tracking-[0.15em] mb-2">
                {nomColonne}
              </p>
              <span
                className="inline-flex items-center text-[9px] font-bold uppercase tracking-wider px-2 py-0.5 rounded-full"
                style={{ backgroundColor: `${ACCENT}33`, color: ACCENT }}
              >
                2-en-1
              </span>
            </div>
          </div>

          {/* Rows */}
          {specs.map((s, i) => (
            <div
              key={i}
              className={`grid grid-cols-[3fr_2fr] items-stretch ${i % 2 === 0 ? 'bg-muted/40' : ''}`}
            >
              <div className="px-5 py-4 flex items-center">
                <span className="text-sm text-foreground/80 font-body font-medium">{s.label}</span>
              </div>
              <div className="px-4 py-4 flex items-center justify-center text-center bg-foreground relative z-10">
                <Cell value={s.value} />
              </div>
            </div>
          ))}

          {/* Footer CTA */}
          <div className="grid grid-cols-[3fr_2fr]">
            <div />
            <div className="bg-foreground rounded-b-2xl px-3 py-5 relative z-10 shadow-[0_6px_20px_rgba(0,0,0,0.06)] flex justify-center">
              <a
                href="/diagnostic"
                className="group inline-flex items-center gap-2 cta-gradient text-white rounded-full font-semibold pl-4 pr-1.5 py-1.5 text-[12px]"
              >
                Demander un devis
                <span className="flex items-center justify-center w-7 h-7 rounded-full bg-white/20 transition-transform duration-500 ease-[cubic-bezier(0.32,0.72,0,1)] group-hover:translate-x-0.5 group-hover:scale-105">
                  <ArrowRight className="w-3 h-3" />
                </span>
              </a>
            </div>
          </div>
        </div>

        {/* ─── Mobile : carte navy ─── */}
        <div className="sm:hidden">
          <div className="rounded-2xl bg-foreground overflow-hidden shadow-[0_20px_60px_-15px_rgba(26,42,58,0.3)]">
            <div className="px-5 py-4 text-center border-b border-white/10">
              <p className="text-[11px] font-semibold text-white/70 font-body uppercase tracking-[0.15em] mb-2">
                {nomColonne}
              </p>
              <span
                className="inline-flex items-center text-[9px] font-bold uppercase tracking-wider px-2 py-0.5 rounded-full"
                style={{ backgroundColor: `${ACCENT}33`, color: ACCENT }}
              >
                2-en-1
              </span>
            </div>
            <div className="divide-y divide-white/10">
              {specs.map((s, i) => (
                <div key={i} className="px-5 py-3 flex items-start justify-between gap-4">
                  <span className="text-xs text-white/60 font-body font-medium flex-1 leading-snug">{s.label}</span>
                  <div className="text-right max-w-[55%]">
                    <Cell value={s.value} />
                  </div>
                </div>
              ))}
            </div>
            <div className="px-5 py-4 border-t border-white/10 flex justify-center">
              <a
                href="/diagnostic"
                className="group inline-flex items-center gap-2 cta-gradient text-white rounded-full font-semibold pl-4 pr-1.5 py-1.5 text-[12px]"
              >
                Demander un devis
                <span className="flex items-center justify-center w-7 h-7 rounded-full bg-white/20 transition-transform duration-500 group-hover:translate-x-0.5">
                  <ArrowRight className="w-3 h-3" />
                </span>
              </a>
            </div>
          </div>
        </div>

        <p className="text-foreground/50 text-xs font-body mt-8 text-center sm:text-left">
          {footnote}
        </p>
      </ScrollReveal>
    </div>
  </section>
);

export default CovaSealSpecs;