---
import type { Sneaker } from '../data/mock';
import WatchlistButtonStatic from './WatchlistButtonStatic.astro';

function getDiscountPercent(sneaker: { originalPrice: number; lowestPrice: number }): number {
  return Math.round(((sneaker.originalPrice - sneaker.lowestPrice) / sneaker.originalPrice) * 100);
}

interface Props {
  sneaker: Sneaker;
  index?: number;
}

const { sneaker, index = 0 } = Astro.props;
const displayName = sneaker.displayName || `${sneaker.brand} ${sneaker.name}`;
const discount = getDiscountPercent(sneaker);

// Build model page URL for color variants link
const modelSlug = sneaker.model
  ? sneaker.model.replace(/[^a-zA-Z0-9]+/g, '-').replace(/(^-|-$)/g, '').toLowerCase()
  : null;
const modelPageUrl = modelSlug ? `/merken/${sneaker.brandSlug}/${modelSlug}` : null;
const colorCount = sneaker.colorVariantCount || 0;
const isPopular = (sneaker.popularityScore || 0) >= 50;

// Deal Score calculation
const shops = sneaker.offers.filter(o => o.inStock).length;
const discountPts = discount >= 40 ? 4 : discount >= 30 ? 3 : discount >= 20 ? 2 : discount >= 10 ? 1 : 0;
const shopPts = shops >= 5 ? 2 : shops >= 3 ? 1 : 0;
const rawScore = discountPts + shopPts; // max 6
const dealScore = rawScore > 0 ? Math.round((rawScore / 6) * 9 + 1) : 1; // normalize to 1-10
const dealScoreLabel = dealScore >= 8 ? 'Top deal' : dealScore >= 5 ? 'Goed' : 'Check prijs';
const showScore = rawScore > 0; // show when any scoring factor is present
const dealScoreClass = dealScore >= 8
  ? 'bg-green-500/15 text-green-400 border border-green-500/30'
  : dealScore >= 5
    ? 'bg-yellow-500/15 text-yellow-400 border border-yellow-500/30'
    : 'bg-red-500/10 text-red-400/70 border border-red-500/20';
---

<a
  href={`/sneakers/${sneaker.slug}`}
  class:list={[
    'group relative flex flex-col overflow-hidden rounded-2xl border border-border/50 bg-bg-card transition-all duration-300 hover:-translate-y-1 hover:border-accent/30 hover:shadow-lg hover:shadow-accent/5',
    'animate-fade-up',
    `stagger-${Math.min(index + 1, 8)}`
  ]}
  data-analytics-item-id={sneaker.id}
  data-analytics-item-name={displayName}
  data-analytics-item-brand={sneaker.brand}
  data-analytics-price={sneaker.lowestPrice}
  onclick="(function(el){window.dataLayer=window.dataLayer||[];window.dataLayer.push({ecommerce:null});window.dataLayer.push({event:'select_item',ecommerce:{items:[{item_id:el.dataset.analyticsItemId,item_name:el.dataset.analyticsItemName,item_brand:el.dataset.analyticsItemBrand,price:parseFloat(el.dataset.analyticsPrice)}]}})})(this)"
>
  <!-- Watchlist button -->
  <div class="absolute right-3 top-3 z-10 opacity-100 sm:opacity-0 sm:group-hover:opacity-100 transition-opacity duration-200">
    <WatchlistButtonStatic productId={sneaker.id} size="sm" />
  </div>

  <!-- Discount badge -->
  {discount > 0 && (
    <div class="absolute left-3 top-3 z-10 rounded-full bg-deal px-2.5 py-1 text-xs font-bold text-white">
      -{discount}%
    </div>
  )}

  <!-- Populair badge -->
  {isPopular && (
    <div class:list={['absolute left-3 z-10 rounded-full bg-accent/15 text-accent border border-accent/30 px-2.5 py-1 text-[10px] font-bold', discount > 0 ? 'top-11' : 'top-3']}>
      Populair
    </div>
  )}

  <!-- Image -->
  <div class="relative aspect-square w-full shrink-0 overflow-hidden bg-white rounded-t-2xl">
    <img
      src={`/api/img/${sneaker.id}`}
      srcset={`/api/img/${sneaker.id}?w=300 300w, /api/img/${sneaker.id}?w=400 400w, /api/img/${sneaker.id} 600w`}
      sizes="(max-width: 640px) 45vw, (max-width: 768px) 30vw, (max-width: 1024px) 25vw, 20vw"
      alt={`${displayName} — vergelijk prijzen bij ${shops} ${shops === 1 ? 'winkel' : 'winkels'}`}
      width="600"
      height="600"
      class="h-full w-full object-contain transition-transform duration-500 group-hover:scale-110 text-transparent"
      loading={index < 4 ? "eager" : "lazy"}
      fetchpriority={index < 4 ? "high" : "low"}
      decoding="async"
      onerror="this.src='/img/sneaker-placeholder.svg';this.onerror=null"
    />
    <!-- Hover glow -->
    <div class="absolute inset-0 bg-gradient-to-t from-accent/5 to-transparent opacity-0 transition-opacity duration-300 group-hover:opacity-100"></div>
  </div>

  <!-- Info -->
  <div class="flex flex-1 flex-col gap-2 p-4">
    <span class="text-[11px] font-bold uppercase tracking-widest text-text-muted">{sneaker.brand}</span>
    <h3 class="font-semibold leading-tight text-text transition-colors group-hover:text-accent">{sneaker.displayName || sneaker.name}</h3>
    <p class="text-xs text-text-muted">{sneaker.colorway}</p>
    {colorCount > 1 && modelPageUrl && (
      <span class="inline-flex items-center gap-1 rounded-full bg-bg-elevated px-2 py-0.5 text-[10px] font-bold text-text-muted w-fit">
        <svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><circle cx="12" cy="12" r="5"/></svg>
        {colorCount} kleuren
      </span>
    )}

    <div class="mt-auto flex items-baseline gap-2 pt-2">
      <span class="text-lg font-black text-accent">vanaf €{sneaker.lowestPrice.toFixed(2).replace('.', ',')}</span>
      {sneaker.originalPrice > sneaker.lowestPrice && (
        <span class="text-sm text-text-muted line-through">€{sneaker.originalPrice.toFixed(2).replace('.', ',')}</span>
      )}
    </div>
    <div class="flex items-center justify-between">
      <div class="flex items-center gap-1.5">
        <span class="text-[11px] text-text-muted">{sneaker.offers.filter(o => o.inStock).length} shops</span>
        {showScore && (
          <span
            class:list={['inline-flex items-center gap-1 rounded-full px-1.5 py-0.5 text-[10px] font-bold leading-none cursor-help', dealScoreClass]}
            title={`Deal Score: ${dealScore}/10 — ${discountPts > 0 ? `${discount}% korting (+${discountPts}pt)` : 'geen korting'}${shopPts > 0 ? `, ${sneaker.offers.filter(o => o.inStock).length} shops (+${shopPts}pt)` : ''}`}
          >
            <svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" viewBox="0 0 24 24" fill="currentColor"><path d="M12 2C6.477 2 2 6.477 2 12s4.477 10 10 10 10-4.477 10-10S17.523 2 12 2zm0 2l2.39 4.843 5.345.778-3.868 3.769.913 5.322L12 16.27l-4.78 2.513.913-5.322L4.265 9.62l5.345-.778L12 4z"/></svg>
            {dealScore} {dealScoreLabel}
          </span>
        )}
      </div>
      <button
        class="compare-btn rounded-md border border-border/50 p-1 text-text-muted opacity-0 transition-all hover:border-accent/50 hover:text-accent sm:group-hover:opacity-100"
        data-compare-id={sneaker.id}
        data-compare-slug={sneaker.slug}
        data-compare-name={sneaker.displayName || sneaker.name}
        data-compare-brand={sneaker.brand}
        data-compare-price={sneaker.lowestPrice}
        data-compare-shops={sneaker.offers.filter(o => o.inStock).length}
        title="Vergelijken"
        onclick="event.preventDefault();event.stopPropagation();(function(b){var d=b.dataset;var item={id:d.compareId,slug:d.compareSlug,name:d.compareName,brand:d.compareBrand,price:parseFloat(d.comparePrice),image:'/api/img/'+d.compareId,shops:parseInt(d.compareShops)};var key='sp_compare';var stored=JSON.parse(localStorage.getItem(key)||'[]');var idx=stored.findIndex(function(i){return i.id===item.id});if(idx>=0){stored=stored.filter(function(i){return i.id!==item.id})}else{if(stored.length>=3){if(window.__showToast)window.__showToast('Max 3 sneakers vergelijken','info');return}stored.push(item)}localStorage.setItem(key,JSON.stringify(stored));window.dispatchEvent(new Event('sp-compare-update'));if(window.__showToast)window.__showToast(idx>=0?'Verwijderd uit vergelijking':'Toegevoegd aan vergelijking','success')})(this)"
      >
        <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M16 3h5v5M8 3H3v5M3 16v5h5M21 16v5h-5"/></svg>
      </button>
    </div>
  </div>
</a>