import { useEffect, useMemo, useRef, useState, type ReactNode } from 'react';
import { Boxes, AlertTriangle, Search, ArrowUp, ArrowDown, ChevronLeft, ChevronRight, ShieldCheck, Loader2 } from 'lucide-react';
import { Skeleton } from '@/components/ui/skeleton';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Combobox } from '@/components/ui/combobox';
import { ScrollArea } from '@/components/ui/scroll-area';
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from '@/components/ui/table';
import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from '@/components/ui/dropdown-menu';
import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
import { SeverityBadge } from '@/components/ui/SeverityBadge';
import { getSeverityKey, type SeverityKey, type ImageFilterValue } from '@/lib/severityStyles';
import { formatTimeAgo } from '@/lib/relativeTime';
import { cn } from '@/lib/utils';
import { useIsMobile } from '@/hooks/use-is-mobile';
import { ImageScanRow, ImageFilterChips, type ImageFilterChip } from './SecurityMobile';
import { NetworkExposedControl, ViewNetworkingAction } from './ExposureNetworking';
import type { ImagesTargetingState } from './imagesTargeting';
import {
  intentionalBannerKind,
  standingExposureContexts,
  standingIntentEvidence,
  targetingExposureContexts,
  allTargetingExposureContexts,
  primaryExposureIntentEvidence,
  driverIdsForImage,
} from './imagesTargeting';
import type { ImageExposureContext, ScanSummary, ScanDetailTab, ScannerKind } from '@/types/security';
// Mobile severity chips. 'FIXABLE' is a phone-only pseudo-filter (the desktop
// Combobox never emits it), so the shared filter logic treats it specially.
const MOBILE_FILTER_CHIPS: ImageFilterChip[] = [
  { value: 'all', label: 'All' },
  { value: 'CRITICAL', label: 'Critical' },
  { value: 'HIGH', label: 'High' },
  { value: 'FIXABLE', label: 'Fixable' },
  { value: 'CLEAN', label: 'Clean' },
];

const PAGE_SIZE = 12;

type SortKey = 'image_ref' | 'scanned_at' | 'severity' | 'findings';

const SEVERITY_RANK: Record<SeverityKey, number> = {
  CRITICAL: 6, HIGH: 5, MEDIUM: 4, LOW: 3, UNKNOWN: 2, FINDINGS: 1, CLEAN: 0,
};

/** Sortable column header. Module-scoped so it is a stable component. */
function SortHead({ label, k, sortKey, sortDir, onSort, className }: {
  label: string;
  k: SortKey;
  sortKey: SortKey;
  sortDir: 'asc' | 'desc';
  onSort: (k: SortKey) => void;
  className?: string;
}) {
  return (
    <TableHead className={cn('text-[10px] uppercase tracking-[0.18em] cursor-pointer select-none', className)}>
      <button type="button" onClick={() => onSort(k)} className="inline-flex items-center gap-1 hover:text-stat-value">
        {label}
        {sortKey === k && (sortDir === 'asc' ? <ArrowUp className="w-3 h-3" /> : <ArrowDown className="w-3 h-3" />)}
      </button>
    </TableHead>
  );
}

const FILTER_OPTIONS: Array<{ value: ImageFilterValue; label: string }> = [
  { value: 'all', label: 'All severities' },
  { value: 'FIXABLE', label: 'Fixable' },
  { value: 'CRITICAL', label: 'Critical' },
  { value: 'HIGH', label: 'High' },
  { value: 'MEDIUM', label: 'Medium' },
  { value: 'LOW', label: 'Low' },
  { value: 'FINDINGS', label: 'Secrets / misconfigs' },
  { value: 'CLEAN', label: 'Clean' },
];

const findingsCount = (s: ScanSummary) => s.total + (s.secret_count ?? 0) + (s.misconfig_count ?? 0);

/** Intent evidence for standing summary, or targeting when active for this image. */
function intentEvidenceFor(
  summary: ScanSummary,
  targeting: ImagesTargetingState | null | undefined,
): string | null {
  if (targeting?.imageRefs.includes(summary.image_ref)) {
    const fromTargets = primaryExposureIntentEvidence(targeting.targets, summary.image_ref);
    if (fromTargets) return fromTargets;
  }
  return standingIntentEvidence(summary);
}

function contextsForImage(
  summary: ScanSummary,
  targeting: ImagesTargetingState | null | undefined,
): ImageExposureContext[] {
  if (targeting?.imageRefs.includes(summary.image_ref)) {
    const fromTargets = targetingExposureContexts(targeting.targets, summary.image_ref);
    if (fromTargets.length > 0) return fromTargets;
  }
  return standingExposureContexts(summary);
}

function IntentEvidenceLine({ line }: { line: string | null }) {
  if (!line) return null;
  return (
    <div className="mt-0.5 font-mono text-[10px] text-stat-icon truncate">{line}</div>
  );
}

const CLEAR_BTN_CLASS =
  'text-xs font-medium text-brand hover:underline whitespace-nowrap shrink-0';

function TargetingClearButton({ onClear }: { onClear?: () => void }) {
  if (!onClear) return null;
  return (
    <button type="button" onClick={onClear} className={CLEAR_BTN_CLASS}>
      Clear
    </button>
  );
}

function TargetingBannerFrame({ children }: { children: ReactNode }) {
  return (
    <div className="rounded-lg border border-card-border border-t-card-border-top bg-card/60 px-3 py-2.5 max-md:px-3">
      {children}
    </div>
  );
}

function formatTargetingTitle(label: string, matched: number, total: number): string {
  if (matched < total) {
    return `${label} · ${matched} of ${total} affected images`;
  }
  return `${label} · ${matched} affected image${matched === 1 ? '' : 's'}`;
}

function IntentionalExposureBanner({
  kind,
  unavailableCount,
  contexts,
  nodeId,
  onClear,
}: {
  kind: 'absolute' | 'partial';
  unavailableCount: number;
  contexts: ImageExposureContext[];
  nodeId?: number;
  onClear?: () => void;
}) {
  const title = kind === 'absolute'
    ? 'Exposure is intentional'
    : 'Known exposure is intentional';
  const body = kind === 'absolute'
    ? 'This workload is classified in Networking. Exposure still increases the security relevance of these findings. Open an affected image below to remediate or triage its findings.'
    : `Known exposure contexts are intentionally classified. Intent could not be verified for ${unavailableCount} service${unavailableCount === 1 ? '' : 's'}. Open an affected image below to remediate or triage its findings.`;

  return (
    <TargetingBannerFrame>
      <div className="flex items-start gap-3 justify-between">
        <div className="min-w-0">
          <p className="font-mono text-xs text-stat-value">{title}</p>
          <p className="text-xs text-stat-subtitle mt-0.5">{body}</p>
        </div>
        <div className="flex items-center gap-3 shrink-0">
          <ViewNetworkingAction contexts={contexts} nodeId={nodeId} />
          <TargetingClearButton onClear={onClear} />
        </div>
      </div>
    </TargetingBannerFrame>
  );
}

interface ImagesTabProps {
  summaries: Record<string, ScanSummary>;
  loading: boolean;
  /** True when the summaries fetch failed; render an error state, never a false "clean". */
  error?: boolean;
  onInspect: (scanId: number, initialTab?: ScanDetailTab, driverVulnerabilityIds?: string[]) => void;
  /** Admin on a node with a ready scanner; gates the scan Actions column. */
  canScan: boolean;
  /** image_ref of the scan currently in flight, for the per-row spinner. */
  scanningRef: string | null;
  onScan: (imageRef: string, scanners: ScannerKind[]) => void;
  /** Preselects the severity/fixable filter, e.g. when arriving from an
   *  overview "fixable findings" link. */
  initialFilter?: ImageFilterValue;
  /** Bumped by SecurityView on each filter/targeting navigation so re-apply works. */
  filterToken?: number;
  /** Parent-owned posture targeting (R1). */
  targeting?: ImagesTargetingState | null;
  onClearTargeting?: () => void;
  /** When true, targeting banner discloses the overview pass may be incomplete. */
  posturePartial?: boolean;
  /** Active node id for SENCHO_OPEN_STACK Networking navigation. */
  nodeId?: number;
}

/** Latest-scan index for real images (stack/config scans live in Compose risks). */
export function ImagesTab({
  summaries,
  loading,
  error,
  onInspect,
  canScan,
  scanningRef,
  onScan,
  initialFilter,
  filterToken = 0,
  targeting = null,
  onClearTargeting,
  posturePartial = false,
  nodeId,
}: ImagesTabProps) {
  const isMobile = useIsMobile();
  const [search, setSearch] = useState('');
  const [severity, setSeverity] = useState<ImageFilterValue>(initialFilter ?? 'all');
  const [sortKey, setSortKey] = useState<SortKey>('scanned_at');
  const [sortDir, setSortDir] = useState<'asc' | 'desc'>('desc');
  const [page, setPage] = useState(0);
  const [searchExpanded, setSearchExpanded] = useState(false);
  const searchInputRef = useRef<HTMLInputElement>(null);

  useEffect(() => { if (searchExpanded) searchInputRef.current?.focus(); }, [searchExpanded]);

  // Apply externally-driven filter / targeting. Keyed on tokens so repeating the
  // same navigation re-applies after Clear (R1) and resets severity (R2).
  useEffect(() => {
    if (targeting) {
      setSeverity(initialFilter ?? 'all');
      setPage(0);
      return;
    }
    if (initialFilter) {
      setSeverity(initialFilter);
      setPage(0);
    }
  }, [targeting?.token, filterToken, targeting, initialFilter]);

  const imageSummaries = useMemo(
    () => Object.values(summaries).filter((s) => !s.image_ref.startsWith('stack:')),
    [summaries],
  );

  const matchedTargetMeta = useMemo(() => {
    if (!targeting || targeting.imageRefs.length === 0) {
      return { active: false as const, matched: 0, total: 0, refs: null as Set<string> | null };
    }
    const wanted = new Set(targeting.imageRefs);
    const refs = new Set(
      imageSummaries.filter((s) => wanted.has(s.image_ref)).map((s) => s.image_ref),
    );
    return {
      active: true as const,
      matched: refs.size,
      total: targeting.imageRefs.length,
      refs,
      label: targeting.label,
    };
  }, [targeting, imageSummaries]);

  // R3: never filter the list at zero matches; fall back to the full list.
  const targetingActive = matchedTargetMeta.active && matchedTargetMeta.matched > 0;

  const filtered = useMemo(() => {
    const term = search.trim().toLowerCase();
    const targetRefs = targetingActive ? matchedTargetMeta.refs : null;
    return imageSummaries
      .filter((s) => (targetRefs ? targetRefs.has(s.image_ref) : true))
      .filter((s) => (term ? s.image_ref.toLowerCase().includes(term) : true))
      .filter((s) => {
        if (severity === 'all') return true;
        if (severity === 'FIXABLE') return s.fixable > 0;
        return getSeverityKey(s) === severity;
      });
  }, [imageSummaries, search, severity, targetingActive, matchedTargetMeta.refs]);

  const sorted = useMemo(() => {
    const dir = sortDir === 'asc' ? 1 : -1;
    return [...filtered].sort((a, b) => {
      switch (sortKey) {
        case 'image_ref': return a.image_ref.localeCompare(b.image_ref) * dir;
        case 'severity': return (SEVERITY_RANK[getSeverityKey(a)] - SEVERITY_RANK[getSeverityKey(b)]) * dir;
        case 'findings': return (findingsCount(a) - findingsCount(b)) * dir;
        default: return (a.scanned_at - b.scanned_at) * dir;
      }
    });
  }, [filtered, sortKey, sortDir]);

  const totalPages = Math.max(1, Math.ceil(sorted.length / PAGE_SIZE));
  const safePage = Math.min(page, totalPages - 1);
  const pageItems = sorted.slice(safePage * PAGE_SIZE, (safePage + 1) * PAGE_SIZE);

  const toggleSort = (key: SortKey) => {
    if (sortKey === key) setSortDir((d) => (d === 'asc' ? 'desc' : 'asc'));
    else { setSortKey(key); setSortDir(key === 'image_ref' ? 'asc' : 'desc'); }
    setPage(0);
  };

  if (error) {
    return (
      <div className="flex flex-col items-center justify-center py-20 text-center">
        <AlertTriangle className="w-12 h-12 text-warning/60 mb-4" strokeWidth={1.5} />
        <h3 className="text-lg font-medium mb-1">Couldn't load scan results</h3>
        <p className="text-sm text-muted-foreground">Scan results failed to load for this node. Try again shortly.</p>
      </div>
    );
  }

  if (loading) {
    return (
      <div className="space-y-2" aria-busy="true">
        <Skeleton className="h-12 w-full rounded-lg" />
        <Skeleton className="h-12 w-full rounded-lg" />
        <Skeleton className="h-12 w-full rounded-lg" />
      </div>
    );
  }

  const noImagesAtAll = imageSummaries.length === 0;
  if (noImagesAtAll) {
    return (
      <div className="space-y-4">
        {targeting && onClearTargeting ? (
          <TargetingBannerFrame>
            <div className="flex items-start gap-3 justify-between">
              <p className="text-xs text-stat-subtitle">
                None of the images for this Security action have a scan summary on this node.
              </p>
              <TargetingClearButton onClear={onClearTargeting} />
            </div>
          </TargetingBannerFrame>
        ) : null}
        <div className="flex flex-col items-center justify-center py-20 text-center">
          <Boxes className="w-12 h-12 text-muted-foreground/50 mb-4" strokeWidth={1.5} />
          <h3 className="text-lg font-medium mb-1">No scanned images</h3>
          <p className="text-sm text-muted-foreground">Scan an image from Resources to see its findings here.</p>
        </div>
      </div>
    );
  }

  let targetingBanner: ReactNode = null;
  if (matchedTargetMeta.active && matchedTargetMeta.matched === 0) {
    targetingBanner = (
      <TargetingBannerFrame>
        <div className="flex items-start gap-3 justify-between">
          <p className="text-xs text-stat-subtitle">
            None of the images for this Security action have a scan summary on this node. Showing all images.
          </p>
          <TargetingClearButton onClear={onClearTargeting} />
        </div>
      </TargetingBannerFrame>
    );
  } else if (matchedTargetMeta.active && matchedTargetMeta.matched > 0 && targeting) {
    const isExposure = targeting.kind === 'public_exposure';
    const hasConflict = isExposure && targeting.targets.some((t) => t.intentConflict);
    const driverCount = targeting.drivers?.length ?? 0;
    const intentional = isExposure && !hasConflict
      ? intentionalBannerKind(targeting.targets, { truncated: posturePartial })
      : { kind: 'none' as const, unavailableCount: 0 };

    if (hasConflict) {
      targetingBanner = (
        <TargetingBannerFrame>
          <div className="flex items-start gap-3 justify-between">
            <div className="min-w-0">
              <p className="font-mono text-xs text-stat-value">Exposure conflicts with declared intent</p>
              <p className="text-xs text-stat-subtitle mt-0.5">
                Compose publishes beyond loopback while Networking intent is internal or same-node. Review networking to align configuration with intent.
              </p>
            </div>
            <div className="flex items-center gap-3 shrink-0">
              <ViewNetworkingAction contexts={allTargetingExposureContexts(targeting.targets)} nodeId={nodeId} />
              <TargetingClearButton onClear={onClearTargeting} />
            </div>
          </div>
        </TargetingBannerFrame>
      );
    } else if (intentional.kind === 'absolute' || intentional.kind === 'partial') {
      targetingBanner = (
        <IntentionalExposureBanner
          kind={intentional.kind}
          unavailableCount={intentional.unavailableCount}
          contexts={allTargetingExposureContexts(targeting.targets)}
          nodeId={nodeId}
          onClear={onClearTargeting}
        />
      );
    } else {
      const partialMatch = matchedTargetMeta.matched < matchedTargetMeta.total;
      const fullDriverCount = targeting.driverCount ?? driverCount;
      const drivingTitle = driverCount > 0;
      const monitoringKinds = new Set(['waiting_upstream', 'update_check_uncertain']);
      const monitoringMode = monitoringKinds.has(targeting.kind);
      const truncated = targeting.driversTruncated === true
        && fullDriverCount > driverCount
        && driverCount > 0;
      const driverTitle = monitoringMode
        ? (truncated
          ? `Findings under Monitoring · showing ${driverCount} of ${fullDriverCount}`
          : `Findings under Monitoring · ${fullDriverCount} finding${fullDriverCount === 1 ? '' : 's'}`)
        : (truncated
          ? `Driving current Security action · showing ${driverCount} of ${fullDriverCount}`
          : `Driving current Security action · ${fullDriverCount} finding${fullDriverCount === 1 ? '' : 's'}`);
      targetingBanner = (
        <TargetingBannerFrame>
          <div className="flex items-start gap-3 justify-between">
            <div className="min-w-0">
              <p className="font-mono text-xs text-stat-value">
                {drivingTitle
                  ? driverTitle
                  : formatTargetingTitle(
                    matchedTargetMeta.label,
                    matchedTargetMeta.matched,
                    matchedTargetMeta.total,
                  )}
              </p>
              <p className="text-xs text-stat-subtitle mt-0.5">
                {drivingTitle
                  ? (monitoringMode
                    ? 'Open an image to review findings under Monitoring for this reason.'
                    : 'Open an image to review the exact findings driving this Security action.')
                  : 'Showing images responsible for the current Security action.'}
                {partialMatch ? ' An affected image has no scan summary on this node.' : ''}
                {posturePartial ? ' The overview pass may be incomplete.' : ''}
              </p>
            </div>
            <TargetingClearButton onClear={onClearTargeting} />
          </div>
        </TargetingBannerFrame>
      );
    }
  }

  const inspectDriversFor = (imageRef: string) => driverIdsForImage(targeting?.drivers, imageRef);

  return (
    <div className="space-y-4">
      {targetingBanner}

      {isMobile ? (
        <>
          {search !== '' || searchExpanded ? (
            <div className="relative">
              <Search className="absolute left-2.5 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" strokeWidth={1.5} />
              <Input
                ref={searchInputRef}
                placeholder="Filter images…"
                value={search}
                onChange={(e) => { setSearch(e.target.value); setPage(0); }}
                onBlur={() => { if (search === '') setSearchExpanded(false); }}
                className="pl-8"
              />
            </div>
          ) : (
            <TooltipProvider>
              <Tooltip>
                <TooltipTrigger asChild>
                  <Button variant="outline" size="sm" className="h-9 w-9 p-0 shrink-0" onClick={() => setSearchExpanded(true)} aria-label="Search images">
                    <Search className="w-4 h-4" strokeWidth={1.5} />
                  </Button>
                </TooltipTrigger>
                <TooltipContent>Search images</TooltipContent>
              </Tooltip>
            </TooltipProvider>
          )}
          <ImageFilterChips
            chips={MOBILE_FILTER_CHIPS}
            active={severity}
            onSelect={(v) => { setSeverity(v); setPage(0); }}
          />
          <div className="rounded-lg border border-card-border border-t-card-border-top bg-card shadow-card-bevel overflow-hidden">
            <div className="px-4">
              {pageItems.map((s) => (
                <ImageScanRow
                  key={s.image_ref}
                  summary={s}
                  onInspect={onInspect}
                  driverVulnerabilityIds={inspectDriversFor(s.image_ref)}
                  intentEvidence={intentEvidenceFor(s, targeting)}
                  exposureContexts={contextsForImage(s, targeting)}
                  nodeId={nodeId}
                />
              ))}
            </div>
            {pageItems.length === 0 && (
              <div className="py-12 text-center text-sm text-muted-foreground">
                No images match your search or filter.
              </div>
            )}
          </div>
        </>
      ) : (
        <>
      <div className="flex items-center gap-2 flex-wrap">
        {search !== '' || searchExpanded ? (
          <div className="relative flex-1 min-w-[200px] max-w-sm">
            <Search className="absolute left-2.5 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" strokeWidth={1.5} />
            <Input
              ref={searchInputRef}
              placeholder="Search images..."
              value={search}
              onChange={(e) => { setSearch(e.target.value); setPage(0); }}
              onBlur={() => { if (search === '') setSearchExpanded(false); }}
              className="pl-8"
            />
          </div>
        ) : (
          <TooltipProvider>
            <Tooltip>
              <TooltipTrigger asChild>
                <Button variant="outline" size="sm" className="h-9 w-9 p-0 shrink-0" onClick={() => setSearchExpanded(true)} aria-label="Search images">
                  <Search className="w-4 h-4" strokeWidth={1.5} />
                </Button>
              </TooltipTrigger>
              <TooltipContent>Search images</TooltipContent>
            </Tooltip>
          </TooltipProvider>
        )}
        <Combobox
          options={FILTER_OPTIONS}
          value={severity}
          onValueChange={(v) => { setSeverity((v || 'all') as ImageFilterValue); setPage(0); }}
          className="w-[200px] [&>button]:!bg-background"
        />
      </div>

      <div className="rounded-lg border border-card-border border-t-card-border-top bg-card shadow-card-bevel overflow-hidden">
        <ScrollArea className="h-[62vh]">
          <Table>
            <TableHeader>
              <TableRow className="hover:bg-transparent">
                <SortHead label="Image" k="image_ref" sortKey={sortKey} sortDir={sortDir} onSort={toggleSort} />
                <SortHead label="Findings" k="findings" sortKey={sortKey} sortDir={sortDir} onSort={toggleSort} className="max-md:hidden" />
                <SortHead label="Last scan" k="scanned_at" sortKey={sortKey} sortDir={sortDir} onSort={toggleSort} className="max-md:hidden" />
                <SortHead label="Severity" k="severity" sortKey={sortKey} sortDir={sortDir} onSort={toggleSort} />
                {canScan && <TableHead className="text-right text-[10px] uppercase tracking-[0.18em]">Actions</TableHead>}
              </TableRow>
            </TableHeader>
            <TableBody>
              {pageItems.map((s) => (
                <TableRow key={s.image_ref} className="hover:bg-muted/30 transition-colors">
                  <TableCell className="font-mono text-xs truncate max-w-[280px]">
                    <div className="flex items-center gap-2 min-w-0">
                      <button type="button" className="hover:text-brand truncate block text-left min-w-0" onClick={() => onInspect(s.scan_id, 'vulns', inspectDriversFor(s.image_ref))}>
                        {s.image_ref}
                      </button>
                      {s.publicly_exposed === true ? (
                        <NetworkExposedControl
                          contexts={contextsForImage(s, targeting)}
                          nodeId={nodeId}
                        />
                      ) : null}
                    </div>
                    <IntentEvidenceLine line={intentEvidenceFor(s, targeting)} />
                  </TableCell>
                  <TableCell className="max-md:hidden">
                    <button
                      type="button"
                      onClick={() => onInspect(s.scan_id, 'vulns', inspectDriversFor(s.image_ref))}
                      className="font-mono tabular-nums text-xs text-stat-subtitle text-left hover:text-stat-value transition-colors"
                    >
                      {s.critical > 0 && <span className="text-destructive mr-2">{s.critical}C</span>}
                      {s.high > 0 && <span className="text-warning mr-2">{s.high}H</span>}
                      {s.secret_count > 0 && <span className="text-warning mr-2">{s.secret_count} secret</span>}
                      {s.misconfig_count > 0 && <span className="text-warning mr-2">{s.misconfig_count} misconfig</span>}
                      {s.fixable > 0 && <span className="text-stat-subtitle">{s.fixable} fixable</span>}
                      {findingsCount(s) === 0 && <span className="text-success">clean</span>}
                    </button>
                  </TableCell>
                  <TableCell className="font-mono text-xs text-stat-subtitle whitespace-nowrap max-md:hidden">
                    {formatTimeAgo(s.scanned_at)}
                  </TableCell>
                  <TableCell>
                    <SeverityBadge summary={s} tooltip={false} onClick={() => onInspect(s.scan_id, 'vulns', inspectDriversFor(s.image_ref))} />
                  </TableCell>
                  {canScan && (
                    <TableCell className="text-right">
                      <DropdownMenu>
                        <TooltipProvider>
                          <Tooltip>
                            <TooltipTrigger asChild>
                              <DropdownMenuTrigger asChild>
                                <Button
                                  variant="ghost"
                                  size="icon"
                                  className="h-7 w-7 text-muted-foreground hover:text-foreground transition-colors"
                                  disabled={scanningRef === s.image_ref}
                                  aria-label={`Scan ${s.image_ref}`}
                                >
                                  {scanningRef === s.image_ref
                                    ? <Loader2 className="w-3.5 h-3.5 animate-spin" strokeWidth={1.5} />
                                    : <ShieldCheck className="w-3.5 h-3.5" strokeWidth={1.5} />}
                                </Button>
                              </DropdownMenuTrigger>
                            </TooltipTrigger>
                            <TooltipContent>Scan image</TooltipContent>
                          </Tooltip>
                        </TooltipProvider>
                        <DropdownMenuContent align="end">
                          <DropdownMenuItem onClick={() => onScan(s.image_ref, ['vuln'])}>
                            Scan (vulnerabilities)
                          </DropdownMenuItem>
                          <DropdownMenuItem onClick={() => onScan(s.image_ref, ['vuln', 'secret'])}>
                            Full scan (vulnerabilities + secrets)
                          </DropdownMenuItem>
                        </DropdownMenuContent>
                      </DropdownMenu>
                    </TableCell>
                  )}
                </TableRow>
              ))}
            </TableBody>
          </Table>
          {pageItems.length === 0 && (
            <div className="py-12 text-center text-sm text-muted-foreground">
              No images match your search or filter.
            </div>
          )}
        </ScrollArea>
      </div>
        </>
      )}

      {sorted.length > PAGE_SIZE && (
        <div className="flex items-center justify-end gap-1">
          <Button variant="ghost" size="icon" className="h-7 w-7" onClick={() => setPage(Math.max(0, safePage - 1))} disabled={safePage === 0} aria-label="Previous page">
            <ChevronLeft className="w-4 h-4" strokeWidth={1.5} />
          </Button>
          <span className="text-xs text-stat-subtitle tabular-nums px-1">{safePage + 1} / {totalPages}</span>
          <Button variant="ghost" size="icon" className="h-7 w-7" onClick={() => setPage(Math.min(totalPages - 1, safePage + 1))} disabled={safePage >= totalPages - 1} aria-label="Next page">
            <ChevronRight className="w-4 h-4" strokeWidth={1.5} />
          </Button>
        </div>
      )}
    </div>
  );
}