import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
import { apiGet, apiPost, apiPut, apiDelete } from "../lib/api";

interface SetupListItem {
  id: number;
  name: string;
  createdAt: string;
  updatedAt: string;
  itemCount: number;
  totalWeight: number;
  totalCost: number;
}

interface SetupItemWithCategory {
  id: number;
  name: string;
  weightGrams: number | null;
  priceCents: number | null;
  categoryId: number;
  notes: string | null;
  productUrl: string | null;
  imageFilename: string | null;
  createdAt: string;
  updatedAt: string;
  categoryName: string;
  categoryIcon: string;
}

interface SetupWithItems {
  id: number;
  name: string;
  createdAt: string;
  updatedAt: string;
  items: SetupItemWithCategory[];
}

export type { SetupListItem, SetupWithItems, SetupItemWithCategory };

export function useSetups() {
  return useQuery({
    queryKey: ["setups"],
    queryFn: () => apiGet<SetupListItem[]>("/api/setups"),
  });
}

export function useSetup(setupId: number | null) {
  return useQuery({
    queryKey: ["setups", setupId],
    queryFn: () => apiGet<SetupWithItems>(`/api/setups/${setupId}`),
    enabled: setupId != null,
  });
}

export function useCreateSetup() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (data: { name: string }) =>
      apiPost<SetupListItem>("/api/setups", data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["setups"] });
    },
  });
}

export function useUpdateSetup(setupId: number) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (data: { name?: string }) =>
      apiPut<SetupListItem>(`/api/setups/${setupId}`, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["setups"] });
    },
  });
}

export function useDeleteSetup() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (id: number) =>
      apiDelete<{ success: boolean }>(`/api/setups/${id}`),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["setups"] });
    },
  });
}

export function useSyncSetupItems(setupId: number) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (itemIds: number[]) =>
      apiPut<{ success: boolean }>(`/api/setups/${setupId}/items`, { itemIds }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["setups"] });
    },
  });
}

export function useRemoveSetupItem(setupId: number) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (itemId: number) =>
      apiDelete<{ success: boolean }>(`/api/setups/${setupId}/items/${itemId}`),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ["setups"] });
    },
  });
}