---
import { CATEGORIES, TOOLS } from "@snapotter/shared";
import * as lucideIcons from "lucide";
import SectionHeading from "./SectionHeading.astro";

const toolCount = TOOLS.length;
const categoryMap = new Map(CATEGORIES.map((c) => [c.id, c]));

const modalities = [
  { id: "all", label: "All", count: TOOLS.length },
  { id: "image", label: "Image", count: TOOLS.filter((t) => t.modality === "image").length },
  { id: "video", label: "Video", count: TOOLS.filter((t) => t.modality === "video").length },
  { id: "audio", label: "Audio", count: TOOLS.filter((t) => t.modality === "audio").length },
  {
    id: "document,file",
    label: "PDF & Files",
    count: TOOLS.filter((t) => t.modality === "document" || t.modality === "file").length,
  },
];

function renderIcon(iconName: string): string {
  const iconData = (lucideIcons as Record<string, unknown>)[iconName];
  if (!iconData || !Array.isArray(iconData)) return "";
  return iconData
    .map(([tag, attrs]: [string, Record<string, string>]) => {
      const attrStr = Object.entries(attrs)
        .map(([k, v]) => `${k}="${v}"`)
        .join(" ");
      return `<${tag} ${attrStr}/>`;
    })
    .join("");
}
---

<section class="bg-background-alt px-6 py-20 md:py-28" id="features">
  <SectionHeading
    title="One platform. Every file tool."
    subtitle={`Browse ${toolCount} self-hosted tools across image, video, audio, documents, and data.`}
  />

  <div class="mx-auto max-w-6xl">
    <!-- Modality pills -->
    <div class="flex flex-wrap items-center justify-center gap-2" id="modality-pills">
      {modalities.map((m) => (
        <button
          type="button"
          data-modality={m.id}
          class:list={[
            "tool-pill shrink-0 rounded-full px-4 py-1.5 text-sm font-medium transition-colors",
            m.id === "all"
              ? "bg-primary text-white"
              : "border border-border bg-surface hover:bg-background-emphasis",
          ]}
        >
          {m.label} ({m.count})
        </button>
      ))}
    </div>

    <!-- Category pills -->
    <div class="mt-3 flex flex-wrap items-center justify-center gap-2" id="category-pills">
      {CATEGORIES.map((cat) => {
        const count = TOOLS.filter((t) => t.category === cat.id).length;
        return (
          <button
            type="button"
            data-category={cat.id}
            class="tool-pill shrink-0 rounded-full border border-border bg-surface px-3 py-1 text-xs font-medium transition-colors hover:bg-background-emphasis"
          >
            {cat.name} ({count})
          </button>
        );
      })}
    </div>

    <!-- Result count -->
    <p class="mt-6 text-center text-sm text-muted" id="tool-count">
      Showing {toolCount} of {toolCount} tools
    </p>

    <!-- Tool grid -->
    <div class="mt-8 grid gap-3 sm:grid-cols-2 md:grid-cols-3 lg:grid-cols-5" id="tool-grid">
      {TOOLS.map((tool) => {
        const cat = categoryMap.get(tool.category);
        return (
          <a
            href={`/tools/${tool.id}`}
            class="tool-card flex flex-col items-center rounded-xl border border-border bg-surface px-4 py-5 text-center no-underline transition-all"
            data-name={tool.name.toLowerCase()}
            data-desc={tool.description.toLowerCase()}
            data-modality={tool.modality}
            data-category={tool.category}
            style={{ "--cat-color": cat?.color } as any}
          >
            <svg
              class="mb-2.5 h-7 w-7 shrink-0"
              style={{ color: cat?.color }}
              viewBox="0 0 24 24"
              fill="none"
              stroke="currentColor"
              stroke-width="2"
              stroke-linecap="round"
              stroke-linejoin="round"
              set:html={renderIcon(tool.icon)}
            />
            <span class="text-sm font-semibold text-foreground">{tool.name}</span>
            <p class="mt-1 text-xs leading-relaxed text-muted line-clamp-2">{tool.description}</p>
          </a>
        );
      })}
    </div>

    <!-- Empty state -->
    <p class="mt-8 hidden text-center text-muted" id="tool-empty">
      No tools match these filters.
    </p>

    <!-- Browse all link -->
    <div class="mt-10 text-center">
      <a href="/tools" class="inline-flex items-center gap-2 text-sm font-medium text-primary hover:underline">
        Browse full tool catalog
        <svg class="h-4 w-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="5" y1="12" x2="19" y2="12"/><polyline points="12 5 19 12 12 19"/></svg>
      </a>
    </div>
  </div>
</section>

<script is:inline>
  (function () {
    var grid = document.getElementById("tool-grid");
    var countEl = document.getElementById("tool-count");
    var emptyEl = document.getElementById("tool-empty");
    var cards = grid.querySelectorAll(".tool-card");
    var total = cards.length;
    var activeModality = "all";
    var activeCategory = "";

    function updatePillStyles() {
      document.querySelectorAll("#modality-pills .tool-pill").forEach(function (btn) {
        var m = btn.getAttribute("data-modality");
        if (m === activeModality) {
          btn.className = "tool-pill shrink-0 rounded-full px-4 py-1.5 text-sm font-medium transition-colors bg-primary text-white";
        } else {
          btn.className = "tool-pill shrink-0 rounded-full px-4 py-1.5 text-sm font-medium transition-colors border border-border bg-surface hover:bg-background-emphasis";
        }
      });
      document.querySelectorAll("#category-pills .tool-pill").forEach(function (btn) {
        var c = btn.getAttribute("data-category");
        if (c === activeCategory) {
          btn.className = "tool-pill shrink-0 rounded-full px-3 py-1 text-xs font-medium transition-colors bg-primary text-white";
        } else {
          btn.className = "tool-pill shrink-0 rounded-full border border-border bg-surface px-3 py-1 text-xs font-medium transition-colors hover:bg-background-emphasis";
        }
      });
    }

    function filter() {
      var visible = 0;
      cards.forEach(function (card) {
        var mod = card.getAttribute("data-modality") || "";
        var cat = card.getAttribute("data-category") || "";
        var matchMod = activeModality === "all" || activeModality.split(",").indexOf(mod) !== -1;
        var matchCat = !activeCategory || cat === activeCategory;
        if (matchMod && matchCat) {
          card.style.display = "";
          visible++;
        } else {
          card.style.display = "none";
        }
      });
      countEl.textContent = "Showing " + visible + " of " + total + " tools";
      emptyEl.style.display = visible === 0 ? "block" : "none";
      grid.style.display = visible === 0 ? "none" : "";
    }

    document.querySelectorAll("#modality-pills .tool-pill").forEach(function (btn) {
      btn.addEventListener("click", function () {
        activeModality = btn.getAttribute("data-modality");
        updatePillStyles();
        filter();
      });
    });

    document.querySelectorAll("#category-pills .tool-pill").forEach(function (btn) {
      btn.addEventListener("click", function () {
        var cat = btn.getAttribute("data-category");
        activeCategory = activeCategory === cat ? "" : cat;
        updatePillStyles();
        filter();
      });
    });
  })();
</script>