/**
 * useRiderStats
 *
 * Fetches on-chain stats for a given pubkey to display on the Rider Card:
 *  - spotsAdded:    how many skate spots (kind 30818) this user has published
 *  - eventsCreated: how many calendar events (kind 31923) they created
 *  - zapsReceived:  count of zap receipts (kind 9735) targeting their pubkey
 *  - shopCards:     kind 37097 shop rider cards issued TO this user
 *  - parkCards:     kind 35679 park access grants issued TO this user
 *
 * All queries hit the SkateSpots community relay so results are skate-specific.
 */

import { useQuery } from '@tanstack/react-query';
import { useNostr } from '@nostrify/react';

export interface RiderStats {
  spotsAdded: number;
  eventsCreated: number;
  zapsReceived: number;
  shopCards: number;
  parkCards: number;
}

export function useRiderStats(pubkey: string | undefined) {
  const { nostr } = useNostr();

  return useQuery({
    queryKey: ['rider-stats', pubkey],
    enabled: !!pubkey,
    staleTime: 60_000,
    queryFn: async (c) => {
      if (!pubkey) return null;
      const signal = AbortSignal.any([c.signal, AbortSignal.timeout(8000)]);

      // Single query — multiple filter objects, one round-trip
      const events = await nostr.query(
        [
          // Spots the user added
          { kinds: [30818], authors: [pubkey], '#t': ['skatespot'], limit: 200 },
          // Events they created
          { kinds: [31923], authors: [pubkey], limit: 100 },
          // Zap receipts targeting their pubkey
          { kinds: [9735], '#p': [pubkey], limit: 200 },
          // Shop rider cards issued TO this user (kind 37097)
          { kinds: [37097], '#p': [pubkey], limit: 50 },
          // Park access cards issued TO this user (kind 35679)
          { kinds: [35679], '#p': [pubkey], limit: 50 },
        ],
        { signal },
      );

      const stats: RiderStats = {
        spotsAdded:    events.filter(e => e.kind === 30818).length,
        eventsCreated: events.filter(e => e.kind === 31923).length,
        zapsReceived:  events.filter(e => e.kind === 9735).length,
        shopCards:     events.filter(e => e.kind === 37097).length,
        parkCards:     events.filter(e => e.kind === 35679).length,
      };

      return stats;
    },
  });
}