"use client";

import { useQuery, useQueryClient } from "@tanstack/react-query";

export type PurchaseIntentionStatus =
  | "pending"
  | "accepted"
  | "rejected"
  | "expired"
  | "completed";

export interface PurchaseIntentionListing {
  listing_id: number;
  item_id: number;
  item_id_unified: number | null;
  item_name: string;
  quantity: number;
  server_name: string;
  seller_id: number;
  price_pix: number | null;
  price_tibia_coins: number | null;
  price_gold_coins: number | null;
  listing_status: string;
  created_at: Date | string;
  description: string | null;
  trade_item_id: number | null;
  trade_item_name: string | null;
  trade_item_quantity: number | null;
  views_count: number;
  favorites_count: number;
  is_featured: boolean;
  image_url: string | null;
  image_local_path: string | null;
  item_category: string | null;
  seller_character_name: string | null;
  seller_username: string | null;
  seller_email: string | null;
}

export interface PurchaseIntention {
  intention_id: number;
  listing_id: number;
  buyer_id: number;
  payment_method: string;
  payment_method_change_count: number;
  custom_offer_amount: number | string | null;
  custom_offer_currency: string | null;
  custom_offer_created_at: Date | string | null;
  chat_id: string | null;
  status: PurchaseIntentionStatus;
  buyer_message: string | null;
  seller_response: string | null;
  created_at: Date | string;
  updated_at: Date | string;
  expires_at: Date | string | null;
  accepted_at: Date | string | null;
  rejected_at: Date | string | null;
  listing: PurchaseIntentionListing | null;
}

interface PurchaseIntentionsResponse {
  success: boolean;
  intentions: PurchaseIntention[];
  count: number;
}

export function useMyPurchaseIntentions() {
  const queryParams = new URLSearchParams();
  queryParams.set("limit", "100");

  const { data, isLoading, error, refetch } =
    useQuery<PurchaseIntentionsResponse>({
      queryKey: ["my-purchase-intentions"],
      queryFn: async () => {
        const res = await fetch(
          `/api/purchase-intentions/my?${queryParams.toString()}`,
        );
        if (!res.ok) {
          if (res.status === 401) {
            throw new Error("Não autenticado");
          }
          throw new Error("Erro ao buscar intenções de compra");
        }
        return res.json();
      },
      staleTime: 1000 * 30, // 30 segundos
      refetchInterval: 1000 * 30, // Refetch a cada 30 segundos
      refetchOnWindowFocus: true,
      refetchOnReconnect: true,
      enabled: true, // Sempre habilitado (autenticação é verificada no backend)
    });

  const normalizedIntentions = (data?.intentions || []).map((intention) => ({
    ...intention,
    custom_offer_amount:
      intention.custom_offer_amount !== null &&
      intention.custom_offer_amount !== undefined
        ? Number(intention.custom_offer_amount)
        : null,
  }));

  return {
    intentions: normalizedIntentions,
    count: data?.count || 0,
    isLoading,
    error,
    refetch,
  };
}

/**
 * Hook para invalidar cache de purchase intentions
 */
export function useInvalidatePurchaseIntentions() {
  const queryClient = useQueryClient();

  const invalidate = () => {
    queryClient.invalidateQueries({ queryKey: ["my-purchase-intentions"] });
  };

  return invalidate;
}