import { useState } from 'react';
import { Link } from 'react-router-dom';
import { useNostr } from '@nostrify/react';
import { useQuery, useQueryClient } from '@tanstack/react-query';
import { NostrEvent } from '@nostrify/nostrify';
import { useCurrentUser } from '@/hooks/useCurrentUser';
import { useNostrPublish } from '@/hooks/useNostrPublish';
import { LoginArea } from '@/components/auth/LoginArea';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Skeleton } from '@/components/ui/skeleton';
import { Checkbox } from '@/components/ui/checkbox';
import { 
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
  DialogTrigger,
} from '@/components/ui/dialog';
import { toast } from '@/hooks/useToast';
import { 
  Database, 
  Download, 
  Trash2, 
  MapPin, 
  Calendar, 
  Store, 
  MessageSquare,
  FileJson,
  Clock,
  ExternalLink,
  AlertTriangle,
  ShoppingBag,
  GraduationCap,
  FolderHeart,
  Video,
  Heart,
  Zap,
} from 'lucide-react';
import { formatDistanceToNow } from '@/lib/dateFnsI18n';
import { useTranslation } from '@/contexts/language';

// Kind constants
const KINDS = {
  POST: 1,
  REACTION: 7,
  ZAP_RECEIPT: 9735,
  COMMENT: 1111,
  SPOT: 30818,
  EVENT: 31923,
  SHOP: 30017,
  LISTING: 30402,
  COLLECTION: 30003,
  COACH: 35001,
  FILMER: 35002,
};

// Event kind labels and icons
const KIND_CONFIG: Record<number, { label: string; icon: typeof MapPin; color: string; category: string }> = {
  [KINDS.POST]: { label: 'Post', icon: MessageSquare, color: 'text-blue-400', category: 'posts' },
  [KINDS.REACTION]: { label: 'Reaction', icon: Heart, color: 'text-pink-400', category: 'reactions' },
  [KINDS.COMMENT]: { label: 'Comment', icon: MessageSquare, color: 'text-gray-400', category: 'comments' },
  [KINDS.SPOT]: { label: 'Spot', icon: MapPin, color: 'text-[#ccff00]', category: 'spots' },
  [KINDS.EVENT]: { label: 'Event', icon: Calendar, color: 'text-[#ff0040]', category: 'events' },
  [KINDS.SHOP]: { label: 'Shop', icon: Store, color: 'text-purple-400', category: 'shops' },
  [KINDS.LISTING]: { label: 'Listing', icon: ShoppingBag, color: 'text-orange-400', category: 'listings' },
  [KINDS.COLLECTION]: { label: 'Collection', icon: FolderHeart, color: 'text-pink-400', category: 'collections' },
  [KINDS.COACH]: { label: 'Coach Profile', icon: GraduationCap, color: 'text-green-400', category: 'labProfiles' },
  [KINDS.FILMER]: { label: 'Filmer Profile', icon: Video, color: 'text-cyan-400', category: 'labProfiles' },
};

interface DataStats {
  spots: number;
  events: number;
  shops: number;
  listings: number;
  posts: number;
  comments: number;
  collections: number;
  labProfiles: number;
  reactions: number;
  zapsReceived: number;
  total: number;
}



function StatCard({ 
  icon: Icon, 
  label, 
  count, 
  color,
  isLoading,
  subtitle,
}: { 
  icon: typeof MapPin; 
  label: string; 
  count: number;
  color: string;
  isLoading: boolean;
  subtitle?: string;
}) {
  return (
    <div className="flex flex-col items-center justify-center p-2 sm:p-4 rounded-lg sm:rounded-xl bg-black/50 border border-gray-800 hover:border-gray-700 transition-colors min-w-0">
      <Icon className={`h-4 w-4 sm:h-5 sm:w-5 mb-1 sm:mb-1.5 ${color}`} />
      {isLoading ? (
        <Skeleton className="h-5 sm:h-7 w-8 sm:w-10 mb-0.5" />
      ) : (
        <span className="text-base sm:text-xl font-black text-white">{count}</span>
      )}
      <span className="text-[9px] sm:text-[10px] text-gray-400 uppercase tracking-wide text-center leading-tight">{label}</span>
      {subtitle && <span className="text-[8px] sm:text-[9px] text-gray-500 leading-tight">{subtitle}</span>}
    </div>
  );
}

function EventRow({ 
  event, 
  onDelete 
}: { 
  event: NostrEvent; 
  onDelete: (event: NostrEvent) => void;
}) {
  const { t } = useTranslation();
  const config = KIND_CONFIG[event.kind] || { label: `Kind ${event.kind}`, icon: FileJson, color: 'text-gray-400', category: 'other' };
  const Icon = config.icon;
  
  // Get title/identifier for the event
  const getEventTitle = () => {
    // For reactions, show what was reacted to
    if (event.kind === KINDS.REACTION) {
      const emoji = event.content || '❤️';
      return t('settingsUi.myData.reactionTitle', { emoji });
    }
    
    // Check for title tag
    const titleTag = event.tags.find(([k]) => k === 'title')?.[1];
    if (titleTag) return titleTag;
    
    // Check for d tag (identifier)
    const dTag = event.tags.find(([k]) => k === 'd')?.[1];
    if (dTag) return dTag;
    
    // For posts/comments, use truncated content
    if (event.content) {
      return event.content.length > 50 ? event.content.slice(0, 50) + '...' : event.content;
    }
    
    return `Event ${event.id.slice(0, 8)}...`;
  };

  return (
    <div className="flex items-center gap-3 p-3 rounded-lg bg-black/30 border border-gray-800 hover:border-gray-700 transition-colors group">
      <div className={`p-2 rounded-lg bg-gray-900 ${config.color}`}>
        <Icon className="h-4 w-4" />
      </div>
      <div className="flex-1 min-w-0">
        <p className="text-sm font-medium text-white truncate">{getEventTitle()}</p>
        <div className="flex items-center gap-2 text-xs text-gray-500">
          <span className={config.color}>{config.label}</span>
          <span>•</span>
          <Clock className="h-3 w-3" />
          <span>{formatDistanceToNow(event.created_at * 1000, { addSuffix: true })}</span>
        </div>
      </div>
      <Button
        variant="ghost"
        size="sm"
        onClick={() => onDelete(event)}
        aria-label={t('settingsUi.myData.requestDeletion')}
        className="min-h-0 min-w-0 opacity-100 transition-opacity text-red-400 hover:text-red-300 hover:bg-red-500/10 sm:opacity-0 sm:group-hover:opacity-100"
      >
        <Trash2 className="h-4 w-4" />
      </Button>
    </div>
  );
}

// Helper to get event title
function getEventTitle(event: NostrEvent): string {
  // For reactions, show what was reacted to
  if (event.kind === KINDS.REACTION) {
    const emoji = event.content || '❤️';
    return `${emoji} reaction`;
  }
  
  // Check for title tag
  const titleTag = event.tags.find(([k]) => k === 'title')?.[1];
  if (titleTag) return titleTag;
  
  // Check for name tag (for shops)
  const nameTag = event.tags.find(([k]) => k === 'name')?.[1];
  if (nameTag) return nameTag;
  
  // Check for d tag (identifier)
  const dTag = event.tags.find(([k]) => k === 'd')?.[1];
  if (dTag && dTag.length < 40) return dTag;
  
  // For posts/comments, use truncated content
  if (event.content) {
    const cleaned = event.content.replace(/\n/g, ' ').trim();
    return cleaned.length > 40 ? cleaned.slice(0, 40) + '...' : cleaned;
  }
  
  return `Event ${event.id.slice(0, 8)}...`;
}

function SelectiveDeletionDialog({
  userEvents,
  onDeleteSelected,
  isDeleting,
}: {
  userEvents: NostrEvent[];
  onDeleteSelected: (events: NostrEvent[]) => Promise<void>;
  isDeleting: boolean;
}) {
  const { t } = useTranslation();
  const [open, setOpen] = useState(false);
  const [selectedEvents, setSelectedEvents] = useState<Set<string>>(new Set());
  const [filterKind, setFilterKind] = useState<number | 'all'>('all');

  // Group events by kind for the filter tabs
  const eventsByKind = userEvents.reduce((acc, event) => {
    if (!acc[event.kind]) acc[event.kind] = [];
    acc[event.kind].push(event);
    return acc;
  }, {} as Record<number, NostrEvent[]>);

  // Get filtered events
  const filteredEvents = filterKind === 'all' 
    ? userEvents 
    : userEvents.filter(e => e.kind === filterKind);

  const toggleEvent = (eventId: string) => {
    const newSelected = new Set(selectedEvents);
    if (newSelected.has(eventId)) {
      newSelected.delete(eventId);
    } else {
      newSelected.add(eventId);
    }
    setSelectedEvents(newSelected);
  };

  const selectAllVisible = () => {
    const newSelected = new Set(selectedEvents);
    for (const event of filteredEvents) {
      newSelected.add(event.id);
    }
    setSelectedEvents(newSelected);
  };

  const selectNone = () => {
    if (filterKind === 'all') {
      setSelectedEvents(new Set());
    } else {
      // Only deselect visible items
      const newSelected = new Set(selectedEvents);
      for (const event of filteredEvents) {
        newSelected.delete(event.id);
      }
      setSelectedEvents(newSelected);
    }
  };

  const handleDelete = async () => {
    const eventsToDelete = userEvents.filter(e => selectedEvents.has(e.id));
    await onDeleteSelected(eventsToDelete);
    setOpen(false);
    setSelectedEvents(new Set());
  };

  const selectedCount = selectedEvents.size;

  // Available filter tabs
  const filterTabs: { kind: number | 'all'; label: string; icon: typeof MapPin; color: string }[] = [
    { kind: 'all', label: t('settingsUi.myData.all'), icon: Database, color: 'text-white' },
    ...(eventsByKind[KINDS.SPOT]?.length ? [{ kind: KINDS.SPOT, label: t('settingsUi.myData.spots'), icon: MapPin, color: 'text-[#ccff00]' }] : []),
    ...(eventsByKind[KINDS.EVENT]?.length ? [{ kind: KINDS.EVENT, label: t('settingsUi.myData.events'), icon: Calendar, color: 'text-[#ff0040]' }] : []),
    ...(eventsByKind[KINDS.SHOP]?.length ? [{ kind: KINDS.SHOP, label: t('settingsUi.myData.shops'), icon: Store, color: 'text-purple-400' }] : []),
    ...(eventsByKind[KINDS.LISTING]?.length ? [{ kind: KINDS.LISTING, label: t('settingsUi.myData.listings'), icon: ShoppingBag, color: 'text-orange-400' }] : []),
    ...(eventsByKind[KINDS.COLLECTION]?.length ? [{ kind: KINDS.COLLECTION, label: t('settingsUi.myData.collections'), icon: FolderHeart, color: 'text-pink-400' }] : []),
    ...((eventsByKind[KINDS.COACH]?.length || eventsByKind[KINDS.FILMER]?.length) ? [{ kind: KINDS.COACH, label: t('settingsUi.myData.lab'), icon: GraduationCap, color: 'text-green-400' }] : []),
    ...((eventsByKind[KINDS.POST]?.length || eventsByKind[KINDS.COMMENT]?.length) ? [{ kind: KINDS.POST, label: t('settingsUi.myData.posts'), icon: MessageSquare, color: 'text-blue-400' }] : []),
    ...(eventsByKind[KINDS.REACTION]?.length ? [{ kind: KINDS.REACTION, label: t('settingsUi.myData.reactions'), icon: Heart, color: 'text-pink-400' }] : []),
  ];

  // Handle special filter cases (Lab = Coach + Filmer, Posts = Post + Comment)
  const getFilteredEventsForTab = () => {
    if (filterKind === 'all') return userEvents;
    if (filterKind === KINDS.COACH) return userEvents.filter(e => e.kind === KINDS.COACH || e.kind === KINDS.FILMER);
    if (filterKind === KINDS.POST) return userEvents.filter(e => e.kind === KINDS.POST || e.kind === KINDS.COMMENT);
    return userEvents.filter(e => e.kind === filterKind);
  };

  const displayEvents = getFilteredEventsForTab();

  return (
    <Dialog open={open} onOpenChange={setOpen}>
      <DialogTrigger asChild>
        <Button
          variant="outline"
          disabled={!userEvents?.length || isDeleting}
          className="flex-1 border-red-500/50 text-red-400 hover:bg-red-500/10"
        >
          <Trash2 className="h-4 w-4 mr-2" />
          {isDeleting ? t('settingsUi.myData.deleting') : t('settingsUi.myData.requestDeletion')}
        </Button>
      </DialogTrigger>
      <DialogContent className="bg-gray-900 border-gray-700 max-w-lg max-h-[85vh] flex flex-col">
        <DialogHeader className="flex-shrink-0">
          <DialogTitle className="flex items-center gap-2 text-white">
            <Trash2 className="h-5 w-5 text-red-400" />
            {t('settingsUi.myData.selectContentTitle')}
          </DialogTitle>
          <DialogDescription className="text-gray-400">
            {t('settingsUi.myData.selectContentDesc')}
          </DialogDescription>
        </DialogHeader>

        <div className="flex-1 overflow-hidden flex flex-col space-y-3 py-2">
          {/* Filter tabs */}
          <div className="flex gap-1 overflow-x-auto pb-2 flex-shrink-0">
            {filterTabs.map((tab) => {
              const Icon = tab.icon;
              const isActive = filterKind === tab.kind;
              const count = tab.kind === 'all' 
                ? userEvents.length 
                : tab.kind === KINDS.COACH 
                  ? (eventsByKind[KINDS.COACH]?.length || 0) + (eventsByKind[KINDS.FILMER]?.length || 0)
                  : tab.kind === KINDS.POST
                    ? (eventsByKind[KINDS.POST]?.length || 0) + (eventsByKind[KINDS.COMMENT]?.length || 0)
                    : eventsByKind[tab.kind]?.length || 0;
              
              return (
                <button
                  key={String(tab.kind)}
                  onClick={() => setFilterKind(tab.kind)}
                  className={`flex shrink-0 min-h-0 items-center gap-1.5 px-3 py-1.5 rounded-full text-xs font-medium whitespace-nowrap transition-colors ${
                    isActive 
                      ? 'bg-gray-700 text-white' 
                      : 'bg-gray-800/50 text-gray-400 hover:bg-gray-800'
                  }`}
                >
                  <Icon className={`h-3 w-3 ${isActive ? tab.color : ''}`} />
                  {tab.label}
                  <span className={`${isActive ? 'text-gray-300' : 'text-gray-500'}`}>({count})</span>
                </button>
              );
            })}
          </div>

          {/* Quick actions */}
          <div className="flex items-center justify-between flex-shrink-0">
            <div className="flex gap-2 text-xs">
              <button onClick={selectAllVisible} className="min-h-0 text-[#ccff00] hover:underline">
                {filterKind !== 'all' ? t('settingsUi.myData.selectAllVisible') : t('settingsUi.myData.selectAll')}
              </button>
              <span className="text-gray-600">|</span>
              <button onClick={selectNone} className="min-h-0 text-gray-400 hover:underline">{t('common.clear')}</button>
            </div>
            <span className="text-xs text-gray-500">
              {t('settingsUi.myData.selectedCount', { count: selectedCount })}
            </span>
          </div>

          {/* Event list */}
          <div className="flex-1 overflow-y-auto space-y-1.5 pr-1 min-h-0">
            {displayEvents.length === 0 ? (
              <div className="text-center py-8 text-gray-500">
                {t('settingsUi.myData.noItemsCategory')}
              </div>
            ) : (
              displayEvents.map((event) => {
                const config = KIND_CONFIG[event.kind] || { label: `Kind ${event.kind}`, icon: FileJson, color: 'text-gray-400', category: 'other' };
                const Icon = config.icon;
                const isChecked = selectedEvents.has(event.id);
                
                return (
                  <label
                    key={event.id}
                    className={`flex items-center gap-2 p-2.5 rounded-lg border transition-colors cursor-pointer ${
                      isChecked
                        ? 'bg-red-950/30 border-red-500/50'
                        : 'bg-black/30 border-gray-800 hover:border-gray-700'
                    }`}
                  >
                    <Checkbox
                      checked={isChecked}
                      onCheckedChange={() => toggleEvent(event.id)}
                      className="h-4 w-4 min-h-0 min-w-0 border-gray-600 data-[state=checked]:bg-red-500 data-[state=checked]:border-red-500 flex-shrink-0"
                    />
                    <div className={`p-1.5 rounded ${config.color} bg-gray-800 flex-shrink-0`}>
                      <Icon className="h-3.5 w-3.5" />
                    </div>
                    <div className="flex-1 min-w-0">
                      <p className="text-sm text-white truncate">{getEventTitle(event)}</p>
                      <p className="text-[10px] text-gray-500">
                        {config.label} • {formatDistanceToNow(event.created_at * 1000, { addSuffix: true })}
                      </p>
                    </div>
                  </label>
                );
              })
            )}
          </div>

          {/* Warning */}
          <div className="p-2.5 rounded-lg bg-yellow-950/50 border border-yellow-500/30 flex-shrink-0">
            <div className="flex items-start gap-2">
              <AlertTriangle className="h-4 w-4 text-yellow-500 flex-shrink-0 mt-0.5" />
              <p className="text-yellow-200 text-xs">
                <strong>{t('settingsUi.myData.decentralizedStrong')}</strong> {t('settingsUi.myData.decentralizedNote')}
              </p>
            </div>
          </div>
        </div>

        <DialogFooter className="flex-shrink-0 flex-col sm:flex-row gap-2 pt-2 border-t border-gray-800">
          <Button
            variant="ghost"
            onClick={() => setOpen(false)}
            className="border-gray-700"
          >
            {t('common.cancel')}
          </Button>
          <Button
            onClick={handleDelete}
            disabled={selectedCount === 0 || isDeleting}
            className="bg-red-500 hover:bg-red-600 text-white"
          >
            {isDeleting ? (
              t('settingsUi.myData.deleting')
            ) : (
              <>
                {t('settingsUi.myData.deleteCount', { count: selectedCount, s: selectedCount === 1 ? '' : 's' })}
              </>
            )}
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}

export function MyDataTab() {
  const { user } = useCurrentUser();
  const { t } = useTranslation();
  const { nostr } = useNostr();
  const queryClient = useQueryClient();
  const { mutateAsync: publishEvent } = useNostrPublish();
  const [isDeleting, setIsDeleting] = useState(false);
  const [showAllActivity, setShowAllActivity] = useState(false);

  // Fetch all user events
  const { data: userEvents, isLoading, refetch } = useQuery({
    queryKey: ['my-data', user?.pubkey],
    queryFn: async ({ signal }) => {
      if (!user?.pubkey) return [];
      
      const querySignal = AbortSignal.any([signal, AbortSignal.timeout(15000)]);
      
      // Query for all event kinds the user might have published
      const events = await nostr.query([
        { 
          authors: [user.pubkey], 
          kinds: [
            KINDS.POST, 
            KINDS.REACTION,
            KINDS.COMMENT, 
            KINDS.SPOT, 
            KINDS.EVENT, 
            KINDS.SHOP, 
            KINDS.LISTING, 
            KINDS.COLLECTION, 
            KINDS.COACH, 
            KINDS.FILMER
          ],
          limit: 500 
        }
      ], { signal: querySignal });
      
      // Sort by created_at descending
      return events.sort((a, b) => b.created_at - a.created_at);
    },
    enabled: !!user?.pubkey,
    staleTime: 60000,
  });

  // Fetch zaps received (where user is the recipient)
  const { data: zapsReceived } = useQuery({
    queryKey: ['my-zaps-received', user?.pubkey],
    queryFn: async ({ signal }) => {
      if (!user?.pubkey) return [];
      
      const querySignal = AbortSignal.any([signal, AbortSignal.timeout(10000)]);
      
      // Query for zap receipts where user is tagged
      const events = await nostr.query([
        { 
          kinds: [KINDS.ZAP_RECEIPT],
          '#p': [user.pubkey],
          limit: 100 
        }
      ], { signal: querySignal });
      
      return events;
    },
    enabled: !!user?.pubkey,
    staleTime: 60000,
  });

  // Calculate stats
  const stats: DataStats = {
    spots: userEvents?.filter(e => e.kind === KINDS.SPOT).length || 0,
    events: userEvents?.filter(e => e.kind === KINDS.EVENT).length || 0,
    shops: userEvents?.filter(e => e.kind === KINDS.SHOP).length || 0,
    listings: userEvents?.filter(e => e.kind === KINDS.LISTING).length || 0,
    posts: userEvents?.filter(e => e.kind === KINDS.POST).length || 0,
    comments: userEvents?.filter(e => e.kind === KINDS.COMMENT).length || 0,
    collections: userEvents?.filter(e => e.kind === KINDS.COLLECTION).length || 0,
    labProfiles: userEvents?.filter(e => e.kind === KINDS.COACH || e.kind === KINDS.FILMER).length || 0,
    reactions: userEvents?.filter(e => e.kind === KINDS.REACTION).length || 0,
    zapsReceived: zapsReceived?.length || 0,
    total: userEvents?.length || 0,
  };

  // Export all data as JSON
  const handleExportData = () => {
    if (!userEvents || userEvents.length === 0) {
      toast({
        title: t('settingsUi.myData.noDataTitle'),
        description: t('settingsUi.myData.noDataDesc'),
        variant: 'destructive',
      });
      return;
    }

    const exportData = {
      exportedAt: new Date().toISOString(),
      pubkey: user?.pubkey,
      stats,
      eventCount: userEvents.length,
      zapsReceivedCount: zapsReceived?.length || 0,
      events: userEvents,
      zapsReceived: zapsReceived || [],
    };

    const blob = new Blob([JSON.stringify(exportData, null, 2)], { type: 'application/json' });
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    a.download = `skatespots-data-${new Date().toISOString().split('T')[0]}.json`;
    document.body.appendChild(a);
    a.click();
    document.body.removeChild(a);
    URL.revokeObjectURL(url);

    toast({
      title: t('settingsUi.myData.exportedTitle'),
      description: t('settingsUi.myData.exportedDesc', { count: userEvents.length }),
    });
  };

  // Delete a single event
  const handleDeleteEvent = async (event: NostrEvent) => {
    try {
      const isAddressable = event.kind >= 30000 && event.kind < 40000;
      const tags: string[][] = [['k', String(event.kind)]];
      
      if (isAddressable) {
        const dTag = event.tags.find(([k]) => k === 'd')?.[1] || '';
        tags.push(['a', `${event.kind}:${event.pubkey}:${dTag}`]);
      } else {
        tags.push(['e', event.id]);
      }

      await publishEvent({
        kind: 5,
        content: 'Deletion requested via SkateSpots',
        tags,
      });

      toast({
        title: t('settingsUi.myData.deletionRequestedTitle'),
        description: t('settingsUi.myData.deletionRequestedDesc'),
      });

      refetch();
    } catch (error) {
      console.error('Failed to delete event:', error);
      toast({
        title: t('settingsUi.myData.deletionFailedTitle'),
        description: t('settingsUi.myData.deletionFailedDesc'),
        variant: 'destructive',
      });
    }
  };

  // Delete selected events
  const handleDeleteSelected = async (eventsToDelete: NostrEvent[]) => {
    if (!eventsToDelete || eventsToDelete.length === 0) return;
    
    setIsDeleting(true);
    
    try {
      const deletionTags: string[][] = [];
      const kindsToDelete = new Set<number>();
      
      for (const event of eventsToDelete) {
        kindsToDelete.add(event.kind);
        const isAddressable = event.kind >= 30000 && event.kind < 40000;
        
        if (isAddressable) {
          const dTag = event.tags.find(([k]) => k === 'd')?.[1] || '';
          deletionTags.push(['a', `${event.kind}:${event.pubkey}:${dTag}`]);
        } else {
          deletionTags.push(['e', event.id]);
        }
      }

      for (const kind of kindsToDelete) {
        deletionTags.push(['k', String(kind)]);
      }

      await publishEvent({
        kind: 5,
        content: 'Selective deletion requested via SkateSpots - user exercising right to delete their data',
        tags: deletionTags,
      });

      toast({
        title: t('settingsUi.myData.deletionRequestedTitle'),
        description: t('settingsUi.myData.deletionRequestedMany', { count: eventsToDelete.length }),
      });

      queryClient.invalidateQueries({ queryKey: ['my-data'] });
      refetch();
    } catch (error) {
      console.error('Failed to delete events:', error);
      toast({
        title: t('settingsUi.myData.deletionFailedTitle'),
        description: t('settingsUi.myData.deletionFailedDesc'),
        variant: 'destructive',
      });
    } finally {
      setIsDeleting(false);
    }
  };

  if (!user) {
    return (
      <Card className="border-dashed">
        <CardContent className="py-12 text-center">
          <Database className="h-12 w-12 mx-auto mb-4 text-muted-foreground/50" />
          <h3 className="text-lg font-medium mb-2">{t('settingsUi.myData.loginRequired')}</h3>
          <p className="text-muted-foreground mb-6">
            {t('settingsUi.myData.loginRequiredDesc')}
          </p>
          <LoginArea className="justify-center" />
        </CardContent>
      </Card>
    );
  }

  const displayedEvents = showAllActivity ? userEvents : userEvents?.slice(0, 10);

  return (
    <div className="space-y-6">
      {/* Header Card */}
      <Card className="bg-gradient-to-br from-[#ccff00]/10 to-[#00ff00]/5 border-2 border-[#ccff00]/30">
        <CardHeader className="pb-4">
          <CardTitle className="flex items-center gap-2 text-white">
            <Database className="h-5 w-5 text-[#ccff00]" />
            {t('settingsUi.myData.title')}
          </CardTitle>
          <CardDescription className="text-gray-300">
            {t('settingsUi.myData.desc')}
          </CardDescription>
        </CardHeader>
        <CardContent className="space-y-4 sm:space-y-6">
          {/* Stats Grid - responsive 2x4 on mobile, 4x2 on desktop */}
          <div className="space-y-2 sm:space-y-3">
            {/* Row 1: Main content */}
            <div className="grid grid-cols-4 gap-1.5 sm:gap-2">
              <StatCard icon={MapPin} label={t('settingsUi.myData.spots')} count={stats.spots} color="text-[#ccff00]" isLoading={isLoading} />
              <StatCard icon={Calendar} label={t('settingsUi.myData.events')} count={stats.events} color="text-[#ff0040]" isLoading={isLoading} />
              <StatCard icon={Store} label={t('settingsUi.myData.shops')} count={stats.shops} color="text-purple-400" isLoading={isLoading} />
              <StatCard icon={ShoppingBag} label={t('settingsUi.myData.listings')} count={stats.listings} color="text-orange-400" isLoading={isLoading} />
            </div>
            {/* Row 2: Social & Lab */}
            <div className="grid grid-cols-4 gap-1.5 sm:gap-2">
              <StatCard icon={MessageSquare} label={t('settingsUi.myData.posts')} count={stats.posts + stats.comments} color="text-blue-400" isLoading={isLoading} />
              <StatCard icon={GraduationCap} label={t('settingsUi.myData.lab')} count={stats.labProfiles} color="text-green-400" isLoading={isLoading} subtitle={t('settingsUi.myData.coachFilmer')} />
              <StatCard icon={Heart} label={t('settingsUi.myData.reactions')} count={stats.reactions} color="text-pink-400" isLoading={isLoading} />
              <StatCard icon={Zap} label={t('settingsUi.myData.zaps')} count={stats.zapsReceived} color="text-yellow-400" isLoading={isLoading} subtitle={t('settingsUi.myData.received')} />
            </div>
          </div>

          {/* Action Buttons */}
          <div className="flex flex-col sm:flex-row gap-3">
            <Button
              onClick={handleExportData}
              disabled={isLoading || !userEvents?.length}
              className="flex-1 bg-[#ccff00] text-black hover:bg-[#ccff00]/90 font-bold"
            >
              <Download className="h-4 w-4 mr-2" />
              {t('settingsUi.myData.exportAll')}
            </Button>
            
            <SelectiveDeletionDialog
              userEvents={userEvents || []}
              onDeleteSelected={handleDeleteSelected}
              isDeleting={isDeleting}
            />
          </div>
        </CardContent>
      </Card>

      {/* Recent Activity */}
      <Card className="bg-black/50 border-gray-800">
        <CardHeader className="pb-3">
          <div className="flex items-center justify-between">
            <CardTitle className="text-lg text-white">{t('settingsUi.myData.recentActivity')}</CardTitle>
            {userEvents && userEvents.length > 10 && (
              <Button
                variant="ghost"
                size="sm"
                onClick={() => setShowAllActivity(!showAllActivity)}
                className="text-[#ccff00] hover:text-[#ccff00]/80"
              >
                {showAllActivity ? t('common.showLess') : t('settingsUi.myData.viewAll', { count: userEvents.length })}
                <ExternalLink className="h-3 w-3 ml-1" />
              </Button>
            )}
          </div>
        </CardHeader>
        <CardContent>
          {isLoading ? (
            <div className="space-y-3">
              {[...Array(5)].map((_, i) => (
                <Skeleton key={i} className="h-16 w-full" />
              ))}
            </div>
          ) : !userEvents?.length ? (
            <div className="text-center py-8">
              <Database className="h-10 w-10 mx-auto mb-3 text-gray-600" />
              <p className="text-gray-400">{t('settingsUi.myData.noDataPublished')}</p>
              <p className="text-gray-500 text-sm mt-1">
                {t('settingsUi.myData.startBy')} <Link to="/create-spot" className="text-[#ccff00] hover:underline">{t('settingsUi.myData.addingASpot')}</Link>!
              </p>
            </div>
          ) : (
            <div className="space-y-2 max-h-[500px] overflow-y-auto pr-2">
              {displayedEvents?.map((event) => (
                <EventRow key={event.id} event={event} onDelete={handleDeleteEvent} />
              ))}
            </div>
          )}
        </CardContent>
      </Card>

      {/* Data Ownership Info */}
      <Card className="bg-blue-950/30 border-blue-500/30">
        <CardHeader className="pb-3">
          <CardTitle className="text-blue-400 text-base">{t('settingsUi.myData.aboutYourData')}</CardTitle>
        </CardHeader>
        <CardContent className="space-y-3 text-sm text-gray-300">
          <p>
            <strong className="text-white">{t('settingsUi.myData.ownDataStrong')}</strong> {t('settingsUi.myData.ownData')}
          </p>
          <ul className="space-y-2 ml-4">
            <li className="flex items-start gap-2">
              <span className="text-[#ccff00]">✓</span>
              <span><strong>{t('settingsUi.myData.exportAnytimeStrong')}</strong> {t('settingsUi.myData.exportAnytime')}</span>
            </li>
            <li className="flex items-start gap-2">
              <span className="text-[#ccff00]">✓</span>
              <span><strong>{t('settingsUi.myData.portableStrong')}</strong> {t('settingsUi.myData.portable')}</span>
            </li>
            <li className="flex items-start gap-2">
              <span className="text-[#ccff00]">✓</span>
              <span><strong>{t('settingsUi.myData.selectiveStrong')}</strong> {t('settingsUi.myData.selective')}</span>
            </li>
            <li className="flex items-start gap-2">
              <span className="text-yellow-400">⚠</span>
              <span><strong>{t('settingsUi.myData.caveatStrong')}</strong> {t('settingsUi.myData.caveat')}</span>
            </li>
          </ul>
        </CardContent>
      </Card>
    </div>
  );
}