import { useQuery } from '@tanstack/react-query';
import { SKATE_SHOP_KIND, SKATE_SPOT_KIND, parseSkateShop, parseSkateSpot, type SkateShop } from '@/lib/types';
import { useSkateRelays } from '@/hooks/useSkateRelays';

export function useShops(limit = 100) {
  const { querySkateContent, getQueryKeySuffix } = useSkateRelays();

  return useQuery({
    queryKey: ['shop-directory', 'list', limit, getQueryKeySuffix()],
    queryFn: async () => {
      const signal = AbortSignal.timeout(10000);

      // Query new shop kind (30017)
      const newShops = await querySkateContent(
        [
          {
            kinds: [SKATE_SHOP_KIND],
            '#t': ['skateshop'],
            limit,
          },
        ],
        { signal, requireAny: true }
      );
      // Query old shops (kind 30818 with 'shop' type) for backward compatibility
      const oldShops = await querySkateContent(
        [
          {
            kinds: [SKATE_SPOT_KIND],
            '#t': ['shop'],
            limit,
          },
        ],
        { signal }
      );


      const allEvents = [...newShops, ...oldShops];

      const shops: SkateShop[] = [];
      for (const event of allEvents) {
        // Try parsing as new shop (kind 30017)
        let shop = parseSkateShop(event);

        // If that fails, try parsing as old spot and convert to shop
        if (!shop && event.kind === SKATE_SPOT_KIND) {
          const spot = parseSkateSpot(event);
          if (spot && spot.types.includes('shop')) {
            // Convert old spot-type shop to new shop format
            shop = {
              id: spot.id,
              pubkey: spot.pubkey,
              identifier: spot.identifier,
              name: spot.title,
              description: spot.description,
              geohash: spot.geohash,
              location: spot.location,
              images: spot.images,
              phone: undefined,
              email: undefined,
              website: undefined,
              instagram: undefined,
              hours: undefined,
              nip05s: [],
              createdAt: spot.createdAt,
              event: spot.event,
            };
          }
        }

        if (shop) {
          shops.push(shop);
        }
      }

      // Sort by created_at descending
      return shops.sort((a, b) => b.createdAt - a.createdAt);
    },
    staleTime: 5 * 60 * 1000,
    gcTime: 30 * 60 * 1000,
    refetchOnMount: true,
  });
}

export function useShop(identifier: string, pubkey?: string) {
  const { querySkateContent, getQueryKeySuffix } = useSkateRelays();

  return useQuery({
    queryKey: ['shop-directory', 'item', identifier, pubkey, getQueryKeySuffix()],
    queryFn: async () => {
      const signal = AbortSignal.timeout(10000);

      // Query new shop format (kind 30017)
      const newFilter: {
        kinds: number[];
        '#d': string[];
        authors?: string[];
        limit: number;
      } = {
        kinds: [SKATE_SHOP_KIND],
        '#d': [identifier],
        limit: 1,
      };
      if (pubkey) newFilter.authors = [pubkey];

      const newShops = await querySkateContent([newFilter], { signal });
      // Query old shop format (kind 30818 with 'shop' type) for backward compatibility
      const oldFilter: {
        kinds: number[];
        '#d': string[];
        '#t': string[];
        authors?: string[];
        limit: number;
      } = {
        kinds: [SKATE_SPOT_KIND],
        '#d': [identifier],
        '#t': ['shop'],
        limit: 1,
      };
      if (pubkey) oldFilter.authors = [pubkey];

      const oldShops = await querySkateContent([oldFilter], { signal });
      const allEvents = [...newShops, ...oldShops];

      if (allEvents.length === 0) return null;

      // If multiple events, take the most recent
      const mostRecent = allEvents.reduce((latest, current) =>
        current.created_at > latest.created_at ? current : latest
      );

      // Try parsing as new shop first
      let shop = parseSkateShop(mostRecent);

      // If that fails, try parsing as old spot and convert
      if (!shop && mostRecent.kind === SKATE_SPOT_KIND) {
        const spot = parseSkateSpot(mostRecent);
        if (spot && spot.types.includes('shop')) {
          shop = {
            id: spot.id,
            pubkey: spot.pubkey,
            identifier: spot.identifier,
            name: spot.title,
            description: spot.description,
            geohash: spot.geohash,
            location: spot.location,
            images: spot.images,
            phone: undefined,
            email: undefined,
            website: undefined,
            instagram: undefined,
            hours: undefined,
            nip05s: [],
            createdAt: spot.createdAt,
            event: spot.event,
          };
        }
      }

      return shop;
    },
    enabled: !!identifier,
    staleTime: 5 * 60 * 1000,
    gcTime: 30 * 60 * 1000,
    refetchOnMount: true,
  });
}

export function useUserShops(pubkey: string) {
  const { querySkateContent, getQueryKeySuffix } = useSkateRelays();

  return useQuery({
    queryKey: ['shop-directory', 'user', pubkey, getQueryKeySuffix()],
    queryFn: async () => {
      const signal = AbortSignal.timeout(10000);

      const events = await querySkateContent(
        [
          {
            kinds: [SKATE_SHOP_KIND],
            authors: [pubkey],
            '#t': ['skateshop'],
            limit: 50,
          },
        ],
        { signal }
      );

      const shops: SkateShop[] = [];
      for (const event of events) {
        const shop = parseSkateShop(event);
        if (shop) shops.push(shop);
      }

      return shops.sort((a, b) => b.createdAt - a.createdAt);
    },
    enabled: !!pubkey,
    staleTime: 5 * 60 * 1000,
    gcTime: 30 * 60 * 1000,
    refetchOnMount: true,
  });
}