"use client";

import Image from "next/image";
import Link from "next/link";
import { useState } from "react";
import type { MaterialItem } from "@/data/site-content";

type MaterialCatalogProps = {
  heroImage: string;
  intro: string;
  deliveryNote: string;
  materials: MaterialItem[];
};

export function MaterialCatalog({
  heroImage,
  intro,
  deliveryNote,
  materials,
}: MaterialCatalogProps) {
  const [selectedSubcategories, setSelectedSubcategories] = useState<string[]>(
    [],
  );

  const subcategories = Array.from(
    new Set(materials.map((material) => material.subcategory)),
  ).sort((left, right) => left.localeCompare(right));

  const filteredMaterials =
    selectedSubcategories.length === 0
      ? materials
      : materials.filter((material) =>
        selectedSubcategories.includes(material.subcategory),
      );

  function toggleFilter(subcategory: string) {
    setSelectedSubcategories((current) =>
      current.includes(subcategory)
        ? current.filter((value) => value !== subcategory)
        : [...current, subcategory],
    );
  }

  return (
    <section id="catalog" className="section catalog-section">
      <div className="container catalog-shell">
        <aside className="catalog-sidebar" aria-label="Material filters">
          <div>
            <span className="eyebrow">Filter materials</span>
            <h2>Sort by category</h2>
            <p>{deliveryNote}</p>
          </div>

          <div className="filter-group">
            <span className="filter-label">Subcategories</span>
            <div className="filter-chips">
              {subcategories.map((subcategory) => (
                <button
                  key={subcategory}
                  type="button"
                  className={`filter-chip ${selectedSubcategories.includes(subcategory) ? "active" : ""
                    }`}
                  onClick={() => toggleFilter(subcategory)}
                >
                  {subcategory}
                </button>
              ))}
            </div>
          </div>

          <button
            type="button"
            className="button button-secondary invert button-block"
            onClick={() => setSelectedSubcategories([])}
          >
            Clear filters
          </button>
        </aside>

        <div className="catalog-main">
          <div className="catalog-hero">
            <div className="catalog-hero-media">
              <Image
                src={heroImage}
                alt="Material category hero"
                fill
                sizes="(max-width: 1024px) 100vw, 60vw"
                quality={72}
                className="cover-image"
              />
            </div>
            <div className="catalog-hero-content">
              <span className="eyebrow">Project-ready inventory</span>
              <h2>Materials organized for faster quoting.</h2>
              <p>{intro}</p>
            </div>
          </div>

          <div className="catalog-toolbar">
            <p className="catalog-count">
              Showing {filteredMaterials.length}{" "}
              {filteredMaterials.length === 1 ? "material" : "materials"}
            </p>
            <div className="selected-filters" aria-live="polite">
              {selectedSubcategories.map((subcategory) => (
                <span key={subcategory} className="selected-chip">
                  {subcategory}
                </span>
              ))}
            </div>
          </div>

          {filteredMaterials.length > 0 ? (
            <div className="material-grid">
              {filteredMaterials.map((material) => (
                <article
                  key={material.slug}
                  className="material-card material-card--catalog reveal"
                >
                  <div className="material-card-media">
                    <Image
                      src={material.image}
                      alt={material.name}
                      fill
                      sizes="(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 25vw"
                      quality={68}
                      className="cover-image"
                    />
                  </div>
                  <div className="material-card-content">
                    <span className="material-card-tag">{material.subcategory}</span>
                    <h3>{material.name}</h3>
                    <p>{material.description}</p>
                    <div className="material-card-meta">
                      <span className="unit">
                        {material.purchaseUnit}
                      </span>
                      <Link
                        href={`/contact?material=${material.slug}`}
                        className="text-link"
                      >
                        Request quote
                      </Link>
                    </div>
                  </div>
                </article>
              ))}
            </div>
          ) : (
            <div className="catalog-empty">
              <h3>No materials match that filter yet.</h3>
              <p>Clear the filters to see the full inventory list again.</p>
            </div>
          )}
        </div>
      </div>
    </section>
  );
}