import { useEffect, useMemo, useRef, useState } from 'react';
import { Search, Loader2, HardDrive, Download, ChevronRight, ChevronDown, Trophy, Calendar, Users, RefreshCw, HelpCircle } from 'lucide-react';
import { toast } from 'sonner';
import { humanFileSize, basename, joinPath, putFileContents } from '../webdav';
import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from './ui/dialog';
import { MarqueeText } from './ui/marquee-text';

// ─── API ──────────────────────────────────────────────────────────────────────

const LEET_BASE   = 'https://hackerswithstyle.se/leet';
const PAGE_SIZE   = 50;
const DOWNLOAD_DIR = '/sd/downloads';

function leetFetch(path: string, query?: Record<string, string>) {
  const url = new URL(LEET_BASE + path);
  if (query) Object.entries(query).forEach(([k, v]) => url.searchParams.set(k, v));
  // The server whitelists "Client-Id: Ultimate" and the "Assembly Query"
  // User-Agent (matching the native Assembly64 client). Requests with the
  // wrong identifiers get rejected: HTTP 464 for unknown Client-Id, HTTP
  // 463 for a missing/foreign User-Agent. The server's CORS preflight
  // allows both headers, so the browser accepts this request.
  return fetch(url.toString(), {
    headers: {
      'Client-Id':  'Ultimate',
      'User-Agent': 'Assembly Query',
    },
  });
}

async function leetJson<T>(path: string, query?: Record<string, string>): Promise<T> {
  const res  = await leetFetch(path, query);
  const data = await res.json();
  if (!res.ok || (data as any).errorCode) throw new Error(`Leet API error ${(data as any).errorCode ?? res.status}`);
  return data as T;
}

// ─── Types ────────────────────────────────────────────────────────────────────

interface ContentItem {
  id: string;
  name: string;
  category: number;
  group?: string;
  handle?: string;
  year?: number;
  country?: string;
  event?: string;
  rating?: number;
  siteRating?: number;
  place?: number;
  compo?: number;
  updated?: string;
  released?: string;
}

interface ContentEntry {
  id: number;
  path: string;
  size: number;
  date: number;
}

interface CategoryMapping {
  id: number;
  name?: string;
  title?: string;
  [k: string]: unknown;
}

interface PresetValue {
  aqlKey: string;
  name?: string;
  id?: number;
  [k: string]: unknown;
}

interface PresetGroup {
  type: string;             // 'repo' | 'category' | 'subcat' | 'rating' | 'type' | 'date' | 'latest' | 'sort' | 'order'
  description: string;      // Human-readable group label shown on the chip
  values: PresetValue[];
}

// Each preset group maps to a search-token prefix. 'sort' and 'order' are not
// filters (they're result-ordering directives) so they get an empty prefix
// marker and the renderer skips them.
const PRESET_PREFIX: Record<string, string | null> = {
  repo:     'repo',
  category: 'category',
  subcat:   'subcat',
  rating:   'rating',
  type:     'type',
  date:     'year',
  latest:   'added',
  sort:     null,
  order:    null,
};

// ─── Props ────────────────────────────────────────────────────────────────────

interface SearchAssembly64Props {
  config: any;
  setConfig: (c: any) => void;
  onClose: () => void;
}

// ─── Module-level persistence ─────────────────────────────────────────────────

const _store = {
  query:          '',
  results:        [] as ContentItem[],
  offset:         0,
  hasMore:        false,
  hasSearched:    false,
  categoryFilter: null as number | null,
  scrollTop:      0,
};

// ─── Helpers ──────────────────────────────────────────────────────────────────

function entryFilename(e: ContentEntry): string {
  return basename(e.path) || e.path;
}

function downloadUrl(item: ContentItem, entry: ContentEntry): string {
  return `${LEET_BASE}/search/bin/${item.id}/${item.category}/${entry.id}`;
}

function RatingStars({ value, max = 10 }: { value?: number; max?: number }) {
  if (!value) return null;
  const pct = Math.round((value / max) * 5);
  return (
    <span className="text-amber-400 text-xs">
      {'★'.repeat(pct)}{'☆'.repeat(5 - pct)}
    </span>
  );
}

// ─── AQL reference ───────────────────────────────────────────────────────────

const AQL_TERMS = [
  { term: 'name:',       label: 'Name',        example: 'name:manic*',      description: 'Title of the release. Supports wildcards (*).' },
  { term: 'group:',      label: 'Group',        example: 'group:triad',      description: 'Group or organization name.' },
  { term: 'handle:',     label: 'Handle',       example: 'handle:jco',       description: 'Author or creator handle.' },
  { term: 'year:',       label: 'Year',         example: 'year:1983',        description: 'Release year.' },
  { term: 'event:',      label: 'Event',        example: 'event:assembly',   description: 'Party or event name.' },
  { term: 'country:',    label: 'Country',      example: 'country:SE',       description: 'Country code (ISO 3166-1 alpha-2).' },
  { term: 'category:',   label: 'Category',     example: 'category:1',       description: 'Category ID number.' },
  { term: 'compo:',      label: 'Compo',        example: 'compo:demo',       description: 'Competition or compo type.' },
  { term: 'place:',      label: 'Place',        example: 'place:1',          description: 'Placement in competition (1 = winner).' },
  { term: 'rating:',     label: 'Rating',       example: 'rating:9',         description: 'Internal rating value.' },
  { term: 'siteRating:', label: 'Site Rating',  example: 'siteRating:8',     description: 'Site (user) rating value.' },
] as const;

// ─── Component ────────────────────────────────────────────────────────────────

export default function SearchAssembly64({ config, setConfig, onClose: _onClose }: SearchAssembly64Props) {
  const scrollRef = useRef<HTMLDivElement>(null);
  const inputRef  = useRef<HTMLInputElement>(null);
  const [showAqlHelp, setShowAqlHelp] = useState(false);

  const [query, setQuery]               = useState(() => _store.query);
  const [results, setResults]           = useState<ContentItem[]>(() => _store.results);
  const [offset, setOffset]             = useState(() => _store.offset);
  const [hasMore, setHasMore]           = useState(() => _store.hasMore);
  const [hasSearched, setHasSearched]   = useState(() => _store.hasSearched);
  const [isSearching, setIsSearching]   = useState(false);
  const [isLoadingMore, setIsLoadingMore] = useState(false);
  const [searchError, setSearchError]   = useState<string | null>(null);
  const [categoryFilter, setCategoryFilter] = useState<number | null>(() => _store.categoryFilter);

  const [categories, setCategories]     = useState<CategoryMapping[]>([]);
  const [presets, setPresets]           = useState<PresetGroup[]>([]);
  const [activePreset, setActivePreset] = useState<PresetGroup | null>(null);

  const [selectedItem, setSelectedItem] = useState<ContentItem | null>(null);
  const [entries, setEntries]           = useState<ContentEntry[] | null>(null);
  const [loadingEntries, setLoadingEntries] = useState(false);

  const [mountEntry, setMountEntry]     = useState<{ item: ContentItem; entry: ContentEntry } | null>(null);
  const [downloading, setDownloading]   = useState<number | null>(null);

  useEffect(() => {
    _store.query          = query;
    _store.results        = results;
    _store.offset         = offset;
    _store.hasMore        = hasMore;
    _store.hasSearched    = hasSearched;
    _store.categoryFilter = categoryFilter;
  }, [query, results, offset, hasMore, hasSearched, categoryFilter]);

  useEffect(() => {
    if (_store.scrollTop > 0 && scrollRef.current)
      scrollRef.current.scrollTop = _store.scrollTop;
  }, []);

  useEffect(() => {
    leetJson<CategoryMapping[]>('/search/categories').then(setCategories).catch(() => {});
    leetJson<Preset[]>('/search/aql/presets').then(setPresets).catch(() => {});
  }, []);

  const categoryName = useMemo(() => {
    const map: Record<number, string> = {};
    for (const c of categories) map[c.id] = (c.name ?? c.title ?? String(c.id)) as string;
    return map;
  }, [categories]);

  // ── Search ──────────────────────────────────────────────────────────────────

  const doSearch = async (q: string, cat: number | null, fromOffset: number, append = false) => {
    if (!append) setIsSearching(true);
    else setIsLoadingMore(true);
    setSearchError(null);
    try {
      let aql = q.trim();
      if (cat !== null) aql = aql ? `${aql} category:${cat}` : `category:${cat}`;
      const data = await leetJson<ContentItem[]>(
        `/search/aql/${fromOffset}/${PAGE_SIZE}`,
        aql ? { query: aql } : undefined,
      );
      if (append) setResults(prev => [...prev, ...data]);
      else setResults(data);
      setOffset(fromOffset + data.length);
      setHasMore(data.length === PAGE_SIZE);
      setHasSearched(true);
    } catch (e: any) {
      setSearchError(e?.message ?? 'Search failed');
    } finally {
      setIsSearching(false);
      setIsLoadingMore(false);
    }
  };

  const handleSearch    = () => doSearch(query, categoryFilter, 0);

  // Build an AQL token for a preset value and append/replace it in the query.
  // Tokens that already contain a colon (e.g. 'subcat:c64comdemos') are
  // inserted verbatim; raw values get the group's prefix.
  const applyPreset = (group: PresetGroup, value: PresetValue) => {
    const prefix = PRESET_PREFIX[group.type];
    setActivePreset(null);
    if (prefix === null || prefix === undefined) return; // sort/order: not a filter
    // Some aqlKeys are self-describing ("subcat:c64comdemos"); use them
    // verbatim. Otherwise prepend the group's prefix.
    const token = value.aqlKey.includes(':') ? value.aqlKey : `${prefix}:${value.aqlKey}`;
    const trimmed = query.trim();
    const next = trimmed ? `${trimmed} ${token}` : token;
    setQuery(next);
    doSearch(next);
    doSearch(q, categoryFilter, 0);
  };

  // ── Item entries ─────────────────────────────────────────────────────────────

  const openItem = async (item: ContentItem) => {
    setSelectedItem(item);
    setEntries(null);
    setLoadingEntries(true);
    try {
      // The /search/entries endpoint now returns { contentEntry: [...] }
      // (matching the API's ContentEntryContainerV2 schema), not a bare array.
      const data = await leetJson<ContentEntry[] | { contentEntry: ContentEntry[] }>(
        `/search/entries/${item.id}/${item.category}`,
      );
      const list = Array.isArray(data) ? data : (data.contentEntry ?? []);
      setEntries(list);
    } catch (e: any) {
      toast.error(`Failed to load entries: ${e?.message ?? e}`);
      setEntries([]);
    } finally {
      setLoadingEntries(false);
    }
  };

  // ── Download to SD ───────────────────────────────────────────────────────────

  const downloadToSd = async (item: ContentItem, entry: ContentEntry) => {
    setDownloading(entry.id);
    try {
      const url  = downloadUrl(item, entry);
      const res  = await fetch(url);
      if (!res.ok) throw new Error(`HTTP ${res.status}`);
      const data = await res.arrayBuffer();
      const dest = joinPath(DOWNLOAD_DIR, entryFilename(entry));
      await putFileContents(dest, data);
      toast.success(`Saved to ${dest}`);
    } catch (e: any) {
      toast.error(`Download failed: ${e?.message ?? e}`);
    } finally {
      setDownloading(null);
    }
  };

  // ── Mount ────────────────────────────────────────────────────────────────────

  const mountOnDevice = (deviceType: 'drive' | 'meatloaf', key: string) => {
    if (!mountEntry) return;
    const { item, entry } = mountEntry;
    const newConfig = JSON.parse(JSON.stringify(config));
    if (!newConfig.devices) newConfig.devices = {};
    if (!newConfig.devices.iec) newConfig.devices.iec = {};
    if (!newConfig.devices.iec[key]) newConfig.devices.iec[key] = { type: deviceType };
    const dev = newConfig.devices.iec[key];
    dev.url = downloadUrl(item, entry);
    delete dev.media_set;
    if (!dev.enabled) dev.enabled = 1;
    setConfig(newConfig);
    setMountEntry(null);
    toast.success(`Mounted "${entryFilename(entry)}" on ${deviceType} #${key}`);
  };

  const mountedUrls = useMemo(() => {
    const s = new Set<string>();
    for (const d of Object.values(config?.devices?.iec ?? {})) {
      const dev = d as any;
      if (dev?.url) s.add(dev.url);
    }
    return s;
  }, [config]);

  // ── Render ────────────────────────────────────────────────────────────────────

  return (
    <>
      <div className="flex flex-col h-full overflow-hidden">
        {/* Header */}
        <div className="flex-shrink-0 px-4 pt-3 pb-3 border-b border-neutral-200/70">
          {/* Search input */}
          <div className="flex gap-2 mb-2">
            <div className="relative flex-1">
              <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-neutral-400 pointer-events-none" />
              <input
                ref={inputRef}
                type="text"
                value={query}
                onChange={e => setQuery(e.target.value)}
                onKeyDown={e => e.key === 'Enter' && !isSearching && handleSearch()}
                placeholder="name:manic* group:ultimate year:1983…"
                className="w-full pl-9 pr-9 py-2.5 bg-neutral-100 border-0 rounded-xl text-sm focus:outline-none focus:ring-2 focus:ring-blue-500 focus:bg-white transition-colors"
                disabled={isSearching}
              />
              <button
                onClick={() => setShowAqlHelp(true)}
                className="absolute right-2.5 top-1/2 -translate-y-1/2 text-neutral-400 hover:text-neutral-600 transition-colors"
                title="AQL search help"
                tabIndex={-1}
              >
                <HelpCircle className="w-4 h-4" />
              </button>
            </div>
            <button
              onClick={handleSearch}
              disabled={isSearching}
              className="px-4 py-2.5 bg-blue-600 text-white rounded-xl text-sm font-medium hover:bg-blue-700 disabled:opacity-40 transition-colors"
            >
              {isSearching ? <Loader2 className="w-4 h-4 animate-spin" /> : 'Search'}
            </button>
          </div>

          {/* Presets */}
          {presets.length > 0 && (
            <div className="flex gap-1.5 mb-2 overflow-x-auto pb-0.5 scrollbar-none">
              {presets
                .filter(group => PRESET_PREFIX[group.type] !== null) // hide sort/order for now
                .map((group, i) => (
                  <button
                    key={`${group.type}-${i}`}
                    onClick={() => setActivePreset(group)}
                    className="flex-shrink-0 px-2.5 py-0.5 rounded-full text-xs font-medium bg-neutral-100 text-neutral-600 hover:bg-neutral-200 transition-colors inline-flex items-center gap-1"
                  >
                    {group.description}
                    <ChevronDown className="w-3 h-3 opacity-60" />
                  </button>
                ))}
            </div>
          )}

          {/* Category filter */}
          {categories.length > 0 && (
            <div className="flex gap-1.5 overflow-x-auto pb-0.5 scrollbar-none">
              <button
                onClick={() => { setCategoryFilter(null); if (hasSearched) doSearch(query, null, 0); }}
                className={`flex-shrink-0 px-2.5 py-0.5 rounded-full text-xs font-medium transition-colors ${categoryFilter === null ? 'bg-blue-600 text-white' : 'bg-neutral-100 text-neutral-600 hover:bg-neutral-200'}`}
              >
                All
              </button>
              {categories.map(c => {
                const name = (c.name ?? c.title ?? String(c.id)) as string;
                return (
                  <button
                    key={c.id}
                    onClick={() => { setCategoryFilter(c.id); if (hasSearched) doSearch(query, c.id, 0); }}
                    className={`flex-shrink-0 px-2.5 py-0.5 rounded-full text-xs font-medium transition-colors ${categoryFilter === c.id ? 'bg-blue-600 text-white' : 'bg-neutral-100 text-neutral-600 hover:bg-neutral-200'}`}
                  >
                    {name}
                  </button>
                );
              })}
            </div>
          )}
        </div>

        {/* Body */}
        <div
          ref={scrollRef}
          className="flex-1 overflow-y-auto"
          onScroll={e => { _store.scrollTop = (e.currentTarget as HTMLDivElement).scrollTop; }}
        >
          {isSearching && !hasSearched && (
            <div className="flex flex-col items-center justify-center py-16 gap-3">
              <Loader2 className="w-8 h-8 text-blue-500 animate-spin" />
              <p className="text-sm text-neutral-500">Searching…</p>
            </div>
          )}

          {searchError && (
            <div className="p-6 text-center">
              <p className="text-sm text-red-500">{searchError}</p>
              <button onClick={handleSearch} className="mt-2 inline-flex items-center gap-1 text-xs text-blue-600">
                <RefreshCw className="w-3 h-3" /> Retry
              </button>
            </div>
          )}

          {!searchError && hasSearched && (
            <>
              {results.length > 0 ? (
                <>
                  <p className="text-xs text-neutral-400 px-4 py-2 border-b border-neutral-100 flex items-center gap-1.5">
                    {isSearching && <Loader2 className="w-3 h-3 animate-spin" />}
                    {results.length} result{results.length !== 1 ? 's' : ''}{hasMore ? '+' : ''}
                  </p>
                  {results.map(item => {
                    const catLabel = categoryName[item.category] ?? `Cat ${item.category}`;
                    return (
                      <button
                        key={item.id}
                        onClick={() => openItem(item)}
                        className="w-full pl-4 pr-4 py-3 flex items-center gap-3 border-b border-neutral-100 border-l-2 border-l-transparent transition-colors hover:bg-blue-50 hover:border-l-blue-400 text-left"
                      >
                        <div className="flex-1 min-w-0">
                          <div className="flex items-center gap-2 flex-wrap">
                            <span className="text-sm font-medium text-neutral-900 truncate">{item.name}</span>
                            <span className="text-xs px-1.5 py-0.5 rounded bg-blue-100 text-blue-700 font-mono flex-shrink-0">{catLabel}</span>
                            {item.place === 1 && <Trophy className="w-3.5 h-3.5 text-amber-500 flex-shrink-0" />}
                          </div>
                          <div className="flex items-center gap-2 mt-0.5 flex-wrap">
                            {item.group && (
                              <span className="text-xs text-neutral-400 flex items-center gap-0.5">
                                <Users className="w-3 h-3" />{item.group}
                              </span>
                            )}
                            {item.handle && !item.group && (
                              <span className="text-xs text-neutral-400">{item.handle}</span>
                            )}
                            {item.year && (
                              <span className="text-xs text-neutral-400 flex items-center gap-0.5">
                                <Calendar className="w-3 h-3" />{item.year}
                              </span>
                            )}
                            {item.event && (
                              <span className="text-xs text-neutral-400 truncate">{item.event}</span>
                            )}
                            {item.place && (
                              <span className="text-xs text-neutral-400">#{item.place}</span>
                            )}
                          </div>
                        </div>
                        <div className="flex-shrink-0 flex flex-col items-end gap-0.5">
                          {item.siteRating != null && <RatingStars value={item.siteRating} />}
                          <ChevronRight className="w-4 h-4 text-neutral-300" />
                        </div>
                      </button>
                    );
                  })}

                  {hasMore && (
                    <div className="p-4 flex justify-center">
                      <button
                        onClick={handleLoadMore}
                        disabled={isLoadingMore}
                        className="px-6 py-2 bg-neutral-100 rounded-xl text-sm text-neutral-600 hover:bg-neutral-200 disabled:opacity-40 inline-flex items-center gap-2"
                      >
                        {isLoadingMore ? <Loader2 className="w-4 h-4 animate-spin" /> : null}
                        Load more
                      </button>
                    </div>
                  )}
                </>
              ) : (
                <div className="py-16 text-center">
                  <Search className="w-10 h-10 mx-auto mb-3 text-neutral-300" />
                  <p className="text-sm text-neutral-500">No results</p>
                </div>
              )}
            </>
          )}

          {!hasSearched && !isSearching && (
            <div className="py-16 text-center px-6">
              <Search className="w-10 h-10 mx-auto mb-3 text-neutral-300" />
              <p className="text-sm font-medium text-neutral-600 mb-1">Search the Assembly64 database</p>
              <p className="text-xs text-neutral-400">
                Use AQL syntax: <code className="bg-neutral-100 px-1 rounded">name:manic*</code>,{' '}
                <code className="bg-neutral-100 px-1 rounded">group:triad</code>,{' '}
                <code className="bg-neutral-100 px-1 rounded">year:1983</code>
              </p>
            </div>
          )}
        </div>
      </div>

      {/* Item entries dialog */}
      <Dialog open={selectedItem !== null} onOpenChange={open => !open && setSelectedItem(null)}>
        <DialogContent className="max-w-sm flex flex-col max-h-[90dvh]">
          <DialogHeader className="flex-shrink-0 overflow-hidden min-w-0">
            <DialogTitle className="sr-only">{selectedItem?.name}</DialogTitle>
            <p className="text-lg font-semibold leading-none pr-6 overflow-hidden min-w-0">
              <MarqueeText>{selectedItem?.name}</MarqueeText>
            </p>
            <DialogDescription>
              {[selectedItem?.group, selectedItem?.year, selectedItem?.event].filter(Boolean).join(' · ')}
            </DialogDescription>
          </DialogHeader>

          <div className="overflow-y-auto flex-1 min-h-0">
            {loadingEntries && (
              <div className="flex justify-center py-8">
                <Loader2 className="w-6 h-6 animate-spin text-blue-500" />
              </div>
            )}
            {!loadingEntries && entries?.length === 0 && (
              <p className="text-sm text-neutral-400 text-center py-8">No files found</p>
            )}
            {!loadingEntries && entries && entries.length > 0 && (
              <div className="flex flex-col gap-2 py-1">
                {entries.map(entry => {
                  const fname    = entryFilename(entry);
                  const isMounted = mountedUrls.has(downloadUrl(selectedItem!, entry));
                  return (
                    <div
                      key={entry.id}
                      className={`px-4 py-3 rounded-lg border flex items-center gap-3 ${isMounted ? 'border-blue-300 bg-blue-50' : 'border-neutral-200'}`}
                    >
                      <div className="flex-1 min-w-0">
                        <div className="text-sm font-medium text-neutral-800 truncate">{fname}</div>
                        <div className="text-xs text-neutral-400">{humanFileSize(entry.size)}</div>
                      </div>
                      <button
                        onClick={() => downloadToSd(selectedItem!, entry)}
                        disabled={downloading === entry.id}
                        className="p-1.5 rounded-lg hover:bg-neutral-100 text-neutral-400 hover:text-neutral-600 disabled:opacity-40"
                        title="Download to /sd/downloads"
                      >
                        {downloading === entry.id
                          ? <Loader2 className="w-4 h-4 animate-spin" />
                          : <Download className="w-4 h-4" />}
                      </button>
                      <button
                        onClick={() => setMountEntry({ item: selectedItem!, entry })}
                        className={`p-1.5 rounded-lg ${isMounted ? 'text-blue-600' : 'hover:bg-neutral-100 text-neutral-400 hover:text-neutral-600'}`}
                        title="Mount on virtual drive"
                      >
                        <HardDrive className="w-4 h-4" />
                      </button>
                    </div>
                  );
                })}
              </div>
            )}
          </div>
        </DialogContent>
      </Dialog>

      {/* Mount device picker */}
      <Dialog open={mountEntry !== null} onOpenChange={open => !open && setMountEntry(null)}>
        <DialogContent className="max-w-sm flex flex-col max-h-[90dvh]">
          <DialogHeader className="flex-shrink-0">
            <DialogTitle>Mount on Virtual Drive</DialogTitle>
            <DialogDescription className="truncate">
              {mountEntry ? entryFilename(mountEntry.entry) : ''}
            </DialogDescription>
          </DialogHeader>
          <div className="overflow-y-auto flex-1 min-h-0">
            {(() => {
              const allDevices = Object.entries(config?.devices?.iec ?? {});
              const drives = allDevices
                .filter(([, v]: [string, any]) => (v as any)?.type === 'drive')
                .map(([k, v]: [string, any]) => ({ type: 'drive' as const, key: k, base_url: v?.base_url as string | undefined, url: v?.url as string | undefined, enabled: !!v?.enabled }));
              const meatloafs = allDevices
                .filter(([, v]: [string, any]) => (v as any)?.type === 'meatloaf')
                .map(([k, v]: [string, any]) => ({ type: 'meatloaf' as const, key: k, base_url: v?.base_url as string | undefined, url: v?.url as string | undefined, enabled: !!v?.enabled }));
              const devices = [...drives, ...meatloafs];
              if (!devices.length)
                return <p className="text-sm text-neutral-500 text-center py-4">No drive devices found in config.</p>;
              return (
                <div className="flex flex-col gap-2">
                  {devices.map(dev => (
                    <button
                      key={`${dev.type}-${dev.key}`}
                      onClick={() => mountOnDevice(dev.type, dev.key)}
                      className="w-full text-left px-4 py-3 rounded border border-neutral-200 hover:bg-blue-50 hover:border-blue-300 flex items-center gap-3"
                    >
                      <HardDrive className={`w-5 h-5 flex-shrink-0 ${dev.enabled ? 'text-blue-500' : 'text-neutral-400'}`} />
                      <div className="min-w-0 flex-1">
                        <div className="font-medium text-sm">Device #{dev.key}</div>
                        {(dev.base_url || dev.url) && (
                          <div
                            className="text-xs text-neutral-500 overflow-hidden whitespace-nowrap"
                            style={{ direction: 'rtl', textOverflow: 'ellipsis' }}
                            title={[dev.base_url, dev.url].filter(Boolean).join('')}
                          >
                            <span style={{ direction: 'ltr', unicodeBidi: 'embed' }}>
                              {[dev.base_url, dev.url].filter(Boolean).join('')}
                            </span>
                          </div>
                        )}
                      </div>
                      {!dev.enabled && <span className="text-xs text-neutral-400 flex-shrink-0">disabled</span>}
                    </button>
                  ))}
                </div>
              );
            })()}
          </div>
        </DialogContent>
      </Dialog>

      {/* AQL help dialog */}
      <Dialog open={showAqlHelp} onOpenChange={setShowAqlHelp}>
        <DialogContent className="max-w-sm flex flex-col max-h-[90dvh]">
          <DialogHeader className="flex-shrink-0">
            <DialogTitle>AQL Search Terms</DialogTitle>
            <DialogDescription>Tap a term to insert it into the search field.</DialogDescription>
          </DialogHeader>
          <div className="overflow-y-auto flex-1 min-h-0 flex flex-col gap-1 py-1">
            {AQL_TERMS.map(({ term, label, example, description }) => (
              <button
                key={term}
                onClick={() => {
                  const trimmed = query.trimEnd();
                  const next = trimmed ? `${trimmed} ${term}` : term;
                  setQuery(next);
                  setShowAqlHelp(false);
                  setTimeout(() => {
                    const el = inputRef.current;
                    if (!el) return;
                    el.focus();
                    el.setSelectionRange(next.length, next.length);
                  }, 50);
                }}
                className="w-full text-left px-4 py-3 rounded-lg border border-neutral-200 hover:bg-blue-50 hover:border-blue-300 transition-colors"
              >
                <div className="flex items-baseline gap-2">
                  <span className="font-mono text-sm font-semibold text-blue-700">{term}</span>
                  <span className="text-xs text-neutral-400">{label}</span>
                  <span className="ml-auto font-mono text-xs text-neutral-400">{example}</span>
                </div>
                <p className="text-xs text-neutral-500 mt-0.5">{description}</p>
              </button>
            ))}
          </div>
        </DialogContent>
      </Dialog>

      {/* Preset values dialog */}
      <Dialog open={activePreset !== null} onOpenChange={open => !open && setActivePreset(null)}>
        <DialogContent className="max-w-sm flex flex-col max-h-[90dvh]">
          <DialogHeader className="flex-shrink-0">
            <DialogTitle>{activePreset?.description ?? 'Preset'}</DialogTitle>
            <DialogDescription>Tap a value to add it to your search.</DialogDescription>
          </DialogHeader>
          <div className="overflow-y-auto flex-1 min-h-0 flex flex-col gap-1 py-1">
            {activePreset?.values.map((v, i) => {
              const label = v.name ?? v.aqlKey;
              const prefix = PRESET_PREFIX[activePreset.type];
              const token = v.aqlKey.includes(':') ? v.aqlKey : `${prefix}:${v.aqlKey}`;
              return (
                <button
                  key={`${v.aqlKey}-${i}`}
                  onClick={() => applyPreset(activePreset, v)}
                  className="w-full text-left px-4 py-2.5 rounded-lg border border-neutral-200 hover:bg-blue-50 hover:border-blue-300 transition-colors flex items-center gap-2"
                >
                  <span className="text-sm text-neutral-800 flex-1 truncate">{label}</span>
                  <span className="font-mono text-xs text-neutral-400 flex-shrink-0">{token}</span>
                </button>
              );
            })}
          </div>
        </DialogContent>
      </Dialog>
    </>
  );
}