{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "no-results",
  "type": "registry:component",
  "title": "No Results",
  "description": "A search that comes up empty: it repeats the query, suggests the spelling fix, names the filter that is hiding matches and offers popular searches. Removing a filter springs the results back in.",
  "categories": [
    "component",
    "Empty & Error"
  ],
  "dependencies": [
    "lucide-react",
    "motion"
  ],
  "registryDependencies": [
    "utils",
    "https://coss.com/ui/r/button.json",
    "https://coss.com/ui/r/input-group.json",
    "https://coss.com/ui/r/menu.json"
  ],
  "files": [
    {
      "path": "registry/devl/no-results.tsx",
      "type": "registry:component",
      "content": "\"use client\";\n\nimport { FileSpreadsheetIcon, FileTextIcon, ListFilterIcon, type LucideIcon, PencilRulerIcon, SearchIcon, SearchXIcon, XIcon } from \"lucide-react\";\nimport { AnimatePresence, motion, useReducedMotion } from \"motion/react\";\nimport { useId, useMemo, useState } from \"react\";\nimport { Button } from \"@/components/ui/button\";\nimport { InputGroup, InputGroupAddon, InputGroupInput } from \"@/components/ui/input-group\";\nimport { Menu, MenuCheckboxItem, MenuGroup, MenuGroupLabel, MenuPopup, MenuTrigger } from \"@/components/ui/menu\";\nimport { cn } from \"@/lib/utils\";\n\nexport interface SearchItem {\n  id: string;\n  title: string;\n  kind: string;\n  owner: string;\n  updated: string;\n  days: number;\n  tags?: string[];\n}\n\nexport interface SearchFilter {\n  id: string;\n  label: string;\n  test: (item: SearchItem) => boolean;\n}\n\nexport interface NoResultsProps {\n  items?: SearchItem[];\n  filters?: SearchFilter[];\n  defaultQuery?: string;\n  defaultFilters?: string[];\n  popular?: string[];\n  placeholder?: string;\n  kindIcons?: Record<string, LucideIcon>;\n  onSelect?: (item: SearchItem) => void;\n  className?: string;\n}\n\nconst defaultIcons: Record<string, LucideIcon> = {\n  Doc: FileTextIcon,\n  Spec: PencilRulerIcon,\n  Sheet: FileSpreadsheetIcon,\n};\n\nconst ease = [0.23, 1, 0.32, 1] as const;\nconst spring = { type: \"spring\", stiffness: 420, damping: 34, mass: 0.8 } as const;\n\nfunction words(text: string) {\n  return text.toLowerCase().match(/[a-z0-9]+/g) ?? [];\n}\n\nfunction distance(a: string, b: string) {\n  const row = Array.from({ length: b.length + 1 }, (_, i) => i);\n  for (let i = 1; i <= a.length; i++) {\n    let prev = row[0];\n    row[0] = i;\n    for (let j = 1; j <= b.length; j++) {\n      const tmp = row[j];\n      row[j] = Math.min(row[j] + 1, row[j - 1] + 1, prev + (a[i - 1] === b[j - 1] ? 0 : 1));\n      prev = tmp;\n    }\n  }\n  return row[b.length];\n}\n\nfunction matches(item: SearchItem, tokens: string[]) {\n  const vocab = words(`${item.title} ${item.tags?.join(\" \") ?? \"\"}`);\n  return tokens.every((t) => vocab.some((w) => w.startsWith(t)));\n}\n\nfunction Highlight({ text, tokens }: { text: string; tokens: string[] }) {\n  if (!tokens.length) return <>{text}</>;\n  const pattern = new RegExp(`\\\\b(${tokens.map((t) => t.replace(/[.*+?^${}()|[\\]\\\\]/g, \"\\\\$&\")).join(\"|\")})`, \"gi\");\n  const parts = text.split(pattern);\n  return (\n    <>\n      {parts.map((part, i) =>\n        i % 2 ? (\n          <mark className=\"rounded-xs bg-warning/24 text-foreground\" key={`${part}-${i}`}>\n            {part}\n          </mark>\n        ) : (\n          part\n        ),\n      )}\n    </>\n  );\n}\n\nexport function NoResults({\n  items = [],\n  filters = [],\n  defaultQuery = \"\",\n  defaultFilters = [],\n  popular = [],\n  placeholder = \"Search docs, specs and sheets\",\n  kindIcons = defaultIcons,\n  onSelect,\n  className,\n}: NoResultsProps) {\n  const reduce = useReducedMotion();\n  const uid = useId();\n  const [query, setQueryState] = useState(defaultQuery);\n  const [springy, setSpringy] = useState(false);\n  const [active, setActive] = useState<string[]>(defaultFilters);\n\n  const tokens = useMemo(() => words(query), [query]);\n  const applied = filters.filter((f) => active.includes(f.id));\n  const byQuery = items.filter((item) => matches(item, tokens));\n  const results = byQuery.filter((item) => applied.every((f) => f.test(item)));\n\n  const suggestion = useMemo(() => {\n    if (!tokens.length || byQuery.length) return null;\n    const vocab = [...new Set(items.flatMap((i) => words(`${i.title} ${i.tags?.join(\" \") ?? \"\"}`)))];\n    let changed = false;\n    const fixed = tokens.map((t) => {\n      if (vocab.some((w) => w.startsWith(t))) return t;\n      const limit = t.length <= 4 ? 1 : 2;\n      let best: string | null = null;\n      let bestScore = limit + 1;\n      for (const w of vocab) {\n        const d = distance(t, w);\n        if (d < bestScore) {\n          best = w;\n          bestScore = d;\n        }\n      }\n      if (best) changed = true;\n      return best ?? t;\n    });\n    const candidate = fixed.join(\" \");\n    return changed && items.some((i) => matches(i, fixed)) ? candidate : null;\n  }, [tokens, byQuery.length, items]);\n\n  const unblock = useMemo(() => {\n    if (results.length || !byQuery.length) return null;\n    return applied\n      .map((f) => ({\n        filter: f,\n        count: byQuery.filter((item) => applied.every((g) => g.id === f.id || g.test(item))).length,\n      }))\n      .sort((a, b) => b.count - a.count)[0];\n  }, [results.length, byQuery, applied]);\n\n  const type = (next: string) => {\n    setSpringy(false);\n    setQueryState(next);\n  };\n  const jump = (next: string) => {\n    setSpringy(true);\n    setQueryState(next);\n  };\n  const toggle = (id: string, on: boolean) => {\n    setSpringy(true);\n    setActive((list) => (on ? [...list, id] : list.filter((x) => x !== id)));\n  };\n  const clearAll = () => {\n    jump(\"\");\n    setActive([]);\n  };\n  const empty = results.length === 0;\n  const settle = !springy || reduce;\n  const swap = { duration: settle ? 0.1 : 0.18, ease };\n  const hidden = byQuery.length - results.length;\n\n  return (\n    <div className={cn(\"w-full max-w-136 overflow-hidden rounded-2xl border bg-card text-foreground shadow-xs/5\", className)}>\n      <div className=\"flex flex-col gap-2.5 p-3\">\n        <InputGroup>\n          <InputGroupAddon>\n            <SearchIcon aria-hidden />\n          </InputGroupAddon>\n          <InputGroupInput\n            aria-controls={`${uid}-results`}\n            aria-label=\"Search\"\n            onChange={(e) => type(e.currentTarget.value)}\n            onKeyDown={(e) => {\n              if (e.key === \"Escape\" && query) {\n                e.preventDefault();\n                type(\"\");\n              }\n            }}\n            placeholder={placeholder}\n            type=\"search\"\n            value={query}\n          />\n          {query && (\n            <InputGroupAddon align=\"inline-end\">\n              <Button aria-label=\"Clear search\" onClick={() => type(\"\")} size=\"icon-xs\" variant=\"ghost\">\n                <XIcon />\n              </Button>\n            </InputGroupAddon>\n          )}\n        </InputGroup>\n\n        <div className=\"flex min-h-7 flex-wrap items-center gap-1.5\">\n          <Menu>\n            <MenuTrigger render={<Button className=\"text-muted-foreground\" size=\"xs\" variant=\"ghost\" />}>\n              <ListFilterIcon />\n              Filter\n            </MenuTrigger>\n            <MenuPopup align=\"start\" className=\"min-w-52\">\n              <MenuGroup>\n                <MenuGroupLabel>Narrow results</MenuGroupLabel>\n                {filters.map((f) => (\n                  <MenuCheckboxItem checked={active.includes(f.id)} key={f.id} onCheckedChange={(on) => toggle(f.id, on)}>\n                    {f.label}\n                  </MenuCheckboxItem>\n                ))}\n              </MenuGroup>\n            </MenuPopup>\n          </Menu>\n          <AnimatePresence initial={false} mode=\"popLayout\">\n            {applied.map((f) => (\n              <motion.span\n                animate={{ opacity: 1, scale: 1 }}\n                className=\"inline-flex h-7 items-center gap-1 rounded-full border bg-background ps-2.5 pe-1 text-xs shadow-xs/5 sm:h-6\"\n                exit={{ opacity: 0, scale: reduce ? 1 : 0.9 }}\n                initial={{ opacity: 0, scale: reduce ? 1 : 0.9 }}\n                key={f.id}\n                layout={reduce ? false : \"position\"}\n                transition={spring}\n              >\n                {f.label}\n                <button\n                  aria-label={`Remove filter ${f.label}`}\n                  className=\"relative flex size-5 items-center justify-center rounded-full text-muted-foreground outline-none transition-colors after:absolute after:-inset-1.5 hover:bg-accent hover:text-foreground focus-visible:ring-2 focus-visible:ring-ring sm:size-4\"\n                  onClick={() => toggle(f.id, false)}\n                  type=\"button\"\n                >\n                  <XIcon aria-hidden className=\"size-3\" />\n                </button>\n              </motion.span>\n            ))}\n          </AnimatePresence>\n          {(applied.length > 0 || query) && (\n            <motion.span layout={reduce ? false : \"position\"} transition={spring}>\n              <Button className=\"text-muted-foreground\" onClick={clearAll} size=\"xs\" variant=\"ghost\">\n                Clear all\n              </Button>\n            </motion.span>\n          )}\n        </div>\n      </div>\n\n      <div className=\"relative grid h-88 border-t\" id={`${uid}-results`}>\n        <AnimatePresence initial={false}>\n          {empty ? (\n            <motion.div\n              animate={{ opacity: 1 }}\n              className=\"col-start-1 row-start-1 flex flex-col items-center justify-center overflow-y-auto px-6 py-6 text-center\"\n              exit={{ opacity: 0 }}\n              initial={{ opacity: 0 }}\n              key=\"empty\"\n              transition={swap}\n            >\n              <div className=\"flex size-10 shrink-0 items-center justify-center rounded-xl border bg-card shadow-xs/5\">\n                <SearchXIcon aria-hidden className=\"size-5\" />\n              </div>\n              <h3 className=\"mt-4 max-w-full text-balance font-semibold text-base\" role=\"status\">\n                {query ? (\n                  <>\n                    No results for <span className=\"break-words\">&ldquo;{query.trim()}&rdquo;</span>\n                  </>\n                ) : (\n                  \"Nothing matches these filters\"\n                )}\n              </h3>\n              <p className=\"mt-1 max-w-88 text-pretty text-muted-foreground text-sm\">\n                {suggestion ? (\n                  <>\n                    Did you mean{\" \"}\n                    <button\n                      className=\"rounded-xs font-medium text-foreground underline decoration-foreground/30 underline-offset-4 outline-none transition-colors hover:decoration-foreground focus-visible:ring-2 focus-visible:ring-ring\"\n                      onClick={() => jump(suggestion)}\n                      type=\"button\"\n                    >\n                      {suggestion}\n                    </button>\n                    ?\n                  </>\n                ) : unblock ? (\n                  <>\n                    {hidden === 1 ? \"1 match is\" : `${hidden} matches are`} hidden by your filters.\n                  </>\n                ) : (\n                  \"Check the spelling, or try a broader word.\"\n                )}\n              </p>\n              {unblock && (\n                <Button className=\"mt-3 active:scale-[0.97]\" onClick={() => toggle(unblock.filter.id, false)} size=\"sm\" variant=\"outline\">\n                  <XIcon />\n                  Remove &ldquo;{unblock.filter.label}&rdquo;\n                </Button>\n              )}\n              {popular.length > 0 && (\n                <div className=\"mt-6 flex flex-col items-center gap-2\">\n                  <span className=\"text-muted-foreground text-xs\">Popular searches</span>\n                  <div className=\"flex flex-wrap justify-center gap-1.5\">\n                    {popular.map((term) => (\n                      <button\n                        className=\"inline-flex h-7 items-center gap-1.5 rounded-full bg-muted px-2.5 text-xs outline-none transition-[background-color,scale] duration-150 hover:bg-accent focus-visible:ring-2 focus-visible:ring-ring active:scale-[0.97] sm:h-6\"\n                        key={term}\n                        onClick={() => {\n                          jump(term);\n                          setActive([]);\n                        }}\n                        type=\"button\"\n                      >\n                        <SearchIcon aria-hidden className=\"size-3 text-muted-foreground\" />\n                        {term}\n                      </button>\n                    ))}\n                  </div>\n                </div>\n              )}\n            </motion.div>\n          ) : (\n            <motion.ul\n              animate={{ opacity: 1 }}\n              aria-label=\"Results\"\n              className=\"col-start-1 row-start-1 flex flex-col gap-0.5 overflow-y-auto p-1.5\"\n              exit={{ opacity: 0 }}\n              initial={{ opacity: 0 }}\n              key=\"list\"\n              transition={swap}\n            >\n              <AnimatePresence initial={false} mode=\"popLayout\">\n                {results.map((item, i) => {\n                  const Icon = kindIcons[item.kind] ?? FileTextIcon;\n                  return (\n                    <motion.li\n                      animate={{ opacity: 1, y: 0, scale: 1 }}\n                      exit={settle ? { opacity: 0 } : { opacity: 0, scale: 0.98 }}\n                      initial={settle ? { opacity: 0 } : { opacity: 0, y: 10, scale: 0.98 }}\n                      key={item.id}\n                      layout={settle ? false : \"position\"}\n                      transition={settle ? { duration: 0.1, ease } : { ...spring, delay: Math.min(i, 6) * 0.03 }}\n                    >\n                      <button\n                        className=\"flex w-full items-center gap-3 rounded-lg px-2 py-2 text-left outline-none transition-colors hover:bg-accent focus-visible:bg-accent focus-visible:ring-2 focus-visible:ring-ring\"\n                        onClick={() => onSelect?.(item)}\n                        type=\"button\"\n                      >\n                        <span className=\"flex size-8 shrink-0 items-center justify-center rounded-lg border bg-background text-muted-foreground\">\n                          <Icon aria-hidden className=\"size-4\" />\n                        </span>\n                        <span className=\"flex min-w-0 flex-col\">\n                          <span className=\"truncate font-medium text-sm\">\n                            <Highlight text={item.title} tokens={tokens} />\n                          </span>\n                          <span className=\"truncate text-muted-foreground text-xs\">\n                            {item.kind} · {item.owner} · {item.updated}\n                          </span>\n                        </span>\n                      </button>\n                    </motion.li>\n                  );\n                })}\n              </AnimatePresence>\n            </motion.ul>\n          )}\n        </AnimatePresence>\n      </div>\n\n      <div className=\"flex h-9 items-center justify-between gap-3 border-t px-3 text-muted-foreground text-xs\">\n        <span aria-live=\"polite\" className=\"tabular-nums\">\n          {results.length === 1 ? \"1 result\" : `${results.length} results`}\n          {hidden > 0 && ` · ${hidden} hidden by filters`}\n        </span>\n        <span className=\"hidden sm:inline\">Esc clears the search</span>\n      </div>\n    </div>\n  );\n}\n"
    }
  ]
}