// ============================================================
// hooks واحدها — تبدیل‌های ثابت جهانی (دسته‌ای‌ها حذف شدند)
// ============================================================

import { useMutation } from "@tanstack/react-query";
import type { StandardConversion } from "../lib/types";
import { api } from "../lib/api";
import { useAppStore } from "../store";
import { useInvalidateStore } from "./useStoreData";

export function useUnits(): { standardConversions: StandardConversion[] } {
  const standardConversions = useAppStore((s) => s.standardConversions);
  return { standardConversions };
}

export function useSaveStandardConversion() {
  const setStandardConversion = useAppStore((s) => s.setStandardConversion);
  const invalidate = useInvalidateStore();
  return useMutation({
    mutationFn: (sc: StandardConversion) => api.units.saveStandardConversion(sc),
    onMutate: (sc) => setStandardConversion(sc),
    onSettled: () => invalidate(),
  });
}

export function useDeleteStandardConversion() {
  const deleteStandardConversion = useAppStore((s) => s.deleteStandardConversion);
  const invalidate = useInvalidateStore();
  return useMutation({
    mutationFn: (id: string) => api.units.deleteStandardConversion(id),
    onMutate: (id) => deleteStandardConversion(id),
    onSettled: () => invalidate(),
  });
}