/**
 * Subscriptions Hooks
 * React hooks for subscription functionality using shared types
 */

import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
import { useAuthSession } from "@/features/auth/services/auth.store";
import { apiClient } from "@/core/api";
import type { Subscription, SubscriptionList, InvoiceList } from "@customer-portal/domain";

interface UseSubscriptionsOptions {
  status?: string;
}

/**
 * Hook to fetch all subscriptions
 */
export function useSubscriptions(options: UseSubscriptionsOptions = {}) {
  const { status } = options;
  const { isAuthenticated, hasValidToken } = useAuthSession();

  return useQuery<SubscriptionList | Subscription[]>({
    queryKey: ["subscriptions", status],
    queryFn: async () => {

      const params = new URLSearchParams({
        ...(status && { status }),
      });


      const response = await apiClient.GET(
        "/subscriptions",
        status ? { params: { query: { status } } } : undefined
      );

      if (!response.data) {
        return [] as Subscription[];
      }

      return response.data as SubscriptionList | Subscription[];
    },
    staleTime: 5 * 60 * 1000, // 5 minutes
    gcTime: 10 * 60 * 1000, // 10 minutes
    enabled: isAuthenticated && hasValidToken,
  });
}

/**
 * Hook to fetch active subscriptions only
 */
export function useActiveSubscriptions() {
  const { isAuthenticated, hasValidToken } = useAuthSession();

  return useQuery<Subscription[]>({
    queryKey: ["subscriptions", "active"],
    queryFn: async () => {
      if (!hasValidToken) {
        throw new Error("Authentication required");
      }


      const response = await apiClient.GET("/subscriptions/active");
      return (response.data ?? []) as Subscription[];
    },
    staleTime: 5 * 60 * 1000, // 5 minutes
    gcTime: 10 * 60 * 1000, // 10 minutes
    enabled: isAuthenticated && hasValidToken,
  });
}

/**
 * Hook to fetch subscription statistics
 */
export function useSubscriptionStats() {
  const { isAuthenticated, hasValidToken } = useAuthSession();

  return useQuery<{
    total: number;
    active: number;
    suspended: number;
    cancelled: number;
    pending: number;
  }>({
    queryKey: ["subscriptions", "stats"],
    queryFn: async () => {
      if (!hasValidToken) {
        throw new Error("Authentication required");
      }


      const response = await apiClient.GET("/subscriptions/stats");
      return (response.data ?? {
        total: 0,
        active: 0,
        suspended: 0,
        cancelled: 0,
        pending: 0,
      }) as {


        total: number;
        active: number;
        suspended: number;
        cancelled: number;
        pending: number;

      };

    },
    staleTime: 5 * 60 * 1000, // 5 minutes
    gcTime: 10 * 60 * 1000, // 10 minutes
    enabled: isAuthenticated && hasValidToken,
  });
}

/**
 * Hook to fetch a specific subscription
 */
export function useSubscription(subscriptionId: number) {
  const { isAuthenticated, hasValidToken } = useAuthSession();

  return useQuery<Subscription>({
    queryKey: ["subscription", subscriptionId],
    queryFn: async () => {
      if (!hasValidToken) {
        throw new Error("Authentication required");
      }


      const response = await apiClient.GET("/subscriptions/{id}", {
        params: { path: { id: subscriptionId } },
      });

      if (!response.data) {
        throw new Error("Subscription not found");
      }

      return response.data as Subscription;

    },
    staleTime: 5 * 60 * 1000, // 5 minutes
    gcTime: 10 * 60 * 1000, // 10 minutes
    enabled: isAuthenticated && hasValidToken,
  });
}

/**
 * Hook to fetch subscription invoices
 */
export function useSubscriptionInvoices(
  subscriptionId: number,
  options: { page?: number; limit?: number } = {}
) {
  const { page = 1, limit = 10 } = options;
  const { isAuthenticated, hasValidToken } = useAuthSession();

  return useQuery<InvoiceList>({
    queryKey: ["subscription-invoices", subscriptionId, page, limit],
    queryFn: async () => {
      if (!hasValidToken) {
        throw new Error("Authentication required");
      }

      const response = await apiClient.GET("/subscriptions/{id}/invoices", {
        params: {
          path: { id: subscriptionId },
          query: { page, limit },
        },
      });

      return (
        response.data ?? {
          invoices: [],
          pagination: {
            page,
            totalPages: 0,
            totalItems: 0,
          },
        }
      ) as InvoiceList;

    },
    staleTime: 60 * 1000, // 1 minute
    gcTime: 5 * 60 * 1000, // 5 minutes
    enabled: isAuthenticated && hasValidToken && !!subscriptionId,
  });
}

/**
 * Hook to perform subscription actions (suspend, resume, cancel, etc.)
 */
export function useSubscriptionAction() {
  const queryClient = useQueryClient();

  return useMutation({
    mutationFn: async ({ id, action }: { id: number; action: string }) => {
      await apiClient.POST("/subscriptions/{id}/actions", {
        params: { path: { id } },
        body: { action },
      });

    },
    onSuccess: (_, { id }) => {
      // Invalidate relevant queries after successful action
      void queryClient.invalidateQueries({ queryKey: ["subscriptions"] });
      void queryClient.invalidateQueries({ queryKey: ["subscription", id] });
    },
  });
}