---
import Layout from '../../layouts/Layout.astro';
import ProductCard from '../../components/ProductCard.astro';
import { getProductsFromDB, getProductCountByMaxPrice } from '../../lib/products';

const { price: priceParam } = Astro.params;
const maxPrice = parseInt(priceParam!);

// Validate price (50-500 in steps of 25)
if (isNaN(maxPrice) || maxPrice < 25 || maxPrice > 500) return Astro.redirect('/sneakers');

const url = Astro.url;
const sort = (url.searchParams.get('sort') || 'price_asc') as 'popular' | 'newest' | 'price_asc' | 'price_desc' | 'discount';
const page = Math.max(1, parseInt(url.searchParams.get('pagina') || '1'));
const perPage = 36;

const products = await getProductsFromDB({
  limit: perPage,
  offset: (page - 1) * perPage,
  orderBy: sort,
  maxPrice,
});

const totalCount = await getProductCountByMaxPrice(maxPrice);
const totalPages = Math.ceil(totalCount / perPage);

const priceSteps = [50, 75, 100, 125, 150, 200, 250, 300];

const title = `Sneakers onder €${maxPrice} — ${totalCount}+ modellen | SneakerPicks`;
const description = `Sneakers onder de €${maxPrice}: vergelijk ${totalCount}+ betaalbare sneakers van Nike, Adidas, New Balance en meer. Vind de beste deals.`;
const breadcrumbs = [
  { name: 'Home', url: 'https://sneakerpicks.nl/' },
  { name: 'Sneakers', url: 'https://sneakerpicks.nl/sneakers' },
  { name: `Onder €${maxPrice}`, url: `https://sneakerpicks.nl/sneakers/onder-${maxPrice}` },
];
---

<Layout title={title} description={description} noindex={page > 1}>
  <script type="application/ld+json" set:html={JSON.stringify({
    "@context": "https://schema.org",
    "@type": "BreadcrumbList",
    itemListElement: breadcrumbs.map((b, i) => ({
      "@type": "ListItem", position: i + 1, name: b.name, item: b.url
    }))
  })} />

  <section class="mx-auto max-w-7xl px-4 py-12 sm:px-6">
    <!-- Breadcrumbs -->
    <nav class="mb-6 text-xs text-text-muted">
      <a href="/" class="hover:text-accent">Home</a> /
      <a href="/sneakers" class="hover:text-accent">Sneakers</a> /
      <span class="text-text-secondary">Onder €{maxPrice}</span>
    </nav>

    <div class="mb-8">
      <h1 class="text-3xl font-black tracking-tight sm:text-4xl">
        Sneakers onder €{maxPrice}
      </h1>
      <p class="mt-2 text-text-secondary">
        {totalCount} betaalbare sneakers onder de €{maxPrice}. Vergelijk prijzen bij alle Nederlandse webshops.
      </p>
    </div>

    <!-- Price navigation -->
    <div class="mb-8 flex flex-wrap gap-2">
      {priceSteps.map(p => (
        <a
          href={`/sneakers/onder-${p}`}
          class:list={[
            'rounded-lg border px-3 py-1.5 text-sm font-semibold transition-all',
            p === maxPrice
              ? 'border-accent bg-accent/10 text-accent'
              : 'border-border/50 text-text-muted hover:border-accent/30 hover:text-text'
          ]}
        >
          &lt; €{p}
        </a>
      ))}
    </div>

    <!-- Sort -->
    <div class="mb-6 flex items-center justify-between">
      <span class="text-sm text-text-muted">{totalCount} resultaten</span>
      <div class="flex gap-2 text-xs">
        {[
          ['price_asc', 'Prijs ↑'],
          ['popular', 'Populair'],
          ['discount', 'Korting'],
          ['newest', 'Nieuwste'],
        ].map(([val, label]) => (
          <a
            href={`?sort=${val}`}
            class:list={[
              'rounded-lg border px-3 py-1.5 transition-all',
              sort === val
                ? 'border-accent bg-accent/10 text-accent'
                : 'border-border/50 text-text-muted hover:text-text'
            ]}
          >
            {label}
          </a>
        ))}
      </div>
    </div>

    <!-- Product grid -->
    <div class="grid grid-cols-2 gap-4 sm:gap-6 md:grid-cols-3 lg:grid-cols-4">
      {products.map((sneaker, i) => (
        <ProductCard sneaker={sneaker} index={i} />
      ))}
    </div>

    {products.length === 0 && (
      <div class="py-20 text-center">
        <p class="text-lg font-semibold text-text-muted">Geen sneakers gevonden onder €{maxPrice}</p>
        <p class="mt-2 text-sm text-text-muted">Probeer een hoger budget of bekijk <a href="/deals" class="text-accent hover:underline">alle deals</a></p>
      </div>
    )}

    <!-- Pagination -->
    {totalPages > 1 && (
      <nav class="mt-12 flex justify-center gap-2">
        {page > 1 && (
          <a href={`?pagina=${page - 1}${sort !== 'price_asc' ? `&sort=${sort}` : ''}`}
             class="rounded-lg border border-border/50 px-3 py-2 text-sm text-text-muted hover:text-text">← Vorige</a>
        )}
        {Array.from({ length: Math.min(totalPages, 10) }, (_, i) => i + 1).map(p => (
          <a
            href={`?pagina=${p}${sort !== 'price_asc' ? `&sort=${sort}` : ''}`}
            class:list={[
              'rounded-lg border px-3 py-2 text-sm',
              p === page ? 'border-accent bg-accent/10 text-accent font-bold' : 'border-border/50 text-text-muted hover:text-text'
            ]}
          >
            {p}
          </a>
        ))}
        {page < totalPages && (
          <a href={`?pagina=${page + 1}${sort !== 'price_asc' ? `&sort=${sort}` : ''}`}
             class="rounded-lg border border-border/50 px-3 py-2 text-sm text-text-muted hover:text-text">Volgende →</a>
        )}
      </nav>
    )}

    <!-- SEO content -->
    <div class="mt-16 border-t border-border/50 pt-8">
      <h2 class="mb-4 text-xl font-bold">Betaalbare sneakers onder €{maxPrice}</h2>
      <p class="text-sm text-text-secondary leading-relaxed">
        Op SneakerPicks vergelijken we dagelijks de prijzen van {totalCount}+ sneakers onder de €{maxPrice}. Van Nike Air Force 1 tot Adidas Samba: we doorzoeken alle grote Nederlandse webshops om de beste deals voor je te vinden. Stel een prijsalert in en we laten je weten wanneer je favoriete sneaker nog goedkoper wordt.
      </p>
      <div class="mt-4 flex flex-wrap gap-3">
        <a href="/sneakers/onder-50" class="text-xs text-accent hover:underline">Onder €50</a>
        <a href="/sneakers/onder-75" class="text-xs text-accent hover:underline">Onder €75</a>
        <a href="/sneakers/onder-100" class="text-xs text-accent hover:underline">Onder €100</a>
        <a href="/sneakers/onder-150" class="text-xs text-accent hover:underline">Onder €150</a>
        <a href="/deals" class="text-xs text-accent hover:underline">Alle deals</a>
      </div>
    </div>
  </section>
</Layout>