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import { useEffect, useMemo, useRef, useState } from 'react';
import type { Icon } from '@/lib/icons';
import styles from './IconLibrary.module.css';
const CATEGORIES = ['all', 'action', 'custom', 'doctype', 'standard', 'utility'] as const;
export default function IconLibrary({ icons }: { icons: Icon[] }) {
const [query, setQuery] = useState('');
const [category, setCategory] = useState<(typeof CATEGORIES)[number]>('all');
const [copied, setCopied] = useState<string | null>(null);
const filtered = useMemo(() => {
const q = query.trim().toLowerCase();
return icons.filter((i) => {
if (category !== 'all' && i.category !== category) return false;
if (!q) return true;
if (i.name.toLowerCase().includes(q)) return true;
return i.synonyms.some((s) => s.toLowerCase().includes(q));
});
}, [icons, query, category]);
return (
<div className={styles.wrap}>
<div className={styles.controls}>
<input
type="search"
value={query}
onChange={(e) => setQuery(e.target.value)}
placeholder="Search by name or synonym..."
className={styles.search}
aria-label="Search icons"
/>
<div className={styles.cats} role="group" aria-label="Icon category">
{CATEGORIES.map((c) => (
<button
key={c}
type="button"
aria-pressed={category === c}
className={category === c ? styles.catActive : styles.cat}
onClick={() => setCategory(c)}
>
{c}
</button>
))}
</div>
<p className={styles.count}>
{filtered.length} of {icons.length}
</p>
</div>
<ul className={styles.grid} role="list">
{filtered.map((icon) => (
<IconCell
key={`${icon.category}/${icon.name}`}
icon={icon}
onCopy={(text) => {
navigator.clipboard.writeText(text).catch(() => {});
setCopied(text);
setTimeout(() => setCopied((c) => (c === text ? null : c)), 1200);
}}
copied={copied === `${icon.category}/${icon.name}`}
/>
))}
</ul>
</div>
);
}
function IconCell({ icon, onCopy, copied }: { icon: Icon; onCopy: (text: string) => void; copied: boolean }) {
const ref = useRef<HTMLLIElement | null>(null);
const [visible, setVisible] = useState(false);
useEffect(() => {
const el = ref.current;
Iif (!el) return;
const io = new IntersectionObserver(
([entry]) => {
if (entry.isIntersecting) {
setVisible(true);
io.disconnect();
}
},
{ rootMargin: '200px' },
);
io.observe(el);
return () => io.disconnect();
}, []);
const id = `${icon.category}/${icon.name}`;
return (
<li ref={ref} className={styles.cell} data-category={icon.category}>
<button
type="button"
className={styles.cellBtn}
onClick={() => onCopy(id)}
title={`Click to copy: ${id}`}
>
<span className={styles.svgSlot} aria-hidden="true">
{visible ? (
<span dangerouslySetInnerHTML={{ __html: icon.svg }} />
) : (
<span className={styles.placeholder} />
)}
</span>
<span className={styles.name}>{icon.name}</span>
<span className={styles.cat2}>{icon.category}</span>
{copied ? <span className={styles.copied}>copied</span> : null}
</button>
</li>
);
}
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