tsc --generateTrace ./trace --incremental false

import type { AppRouter } from '~/server/trpc';

const trpc = createTRPCReact<AppRouter>();

const Home: NextPage = () => {
  const { data } = trpc.r0.greeting.useQuery({ who: 'from tRPC' });
  const utils = trpc.useContext();
  utils.r49.greeting.invalidate();
};

export default Home;

type DecorateProcedure<
  TRouter extends AnyRouter,
  TProcedure extends Procedure<any>,
  TProcedure extends AnyQueryProcedure,
> = {
  /**
   * @see https://tanstack.com/query/v4/docs/framework/react/guides/query-invalidation
   */
  invalidate(
    input?: inferProcedureInput<TProcedure>,
    filters?: InvalidateQueryFilters,
    options?: InvalidateOptions,
  ): Promise<void>;
  // ... 그리고 다른 모든 React Query 유틸리티에 대해서도 마찬가지입니다.
};

export type DecoratedProcedureUtilsRecord<TRouter extends AnyRouter> =
  OmitNeverKeys<{
    [TKey in keyof TRouter['_def']['record']]: TRouter['_def']['record'][TKey] extends LegacyV9ProcedureTag
      ? never
      : TRouter['_def']['record'][TKey] extends AnyRouter
        ? DecoratedProcedureUtilsRecord<TRouter['_def']['record'][TKey]>
        : TRouter['_def']['record'][TKey] extends AnyQueryProcedure
          ? DecorateProcedure<TRouter, TRouter['_def']['record'][TKey]>
          : never;
  }>;

export type V10Router<TProcedureRecord> = {
  record: TProcedureRecord;
};

// v9 상호운용 라우터를 v10 라우터로 변환
export type MigrateV9Router<TV9Router extends V9Router> = V10Router<{
  [TKey in keyof TV9Router['procedures']]: MigrateProcedure<
    TV9Router['procedures'][TKey]
  > &
    LegacyV9ProcedureTag;
}>;

export type V10Router<TProcedureRecord> = {
  record: TProcedureRecord;
  // 기본적으로 레거시 프로시저 없음
  legacy: {};
};

export type MigrateV9Router<TV9Router extends V9Router> = {
  // v9 라우터는 자신의 프로시저를 `legacy` 필드에 주입
  legacy: {
    // v9 클라이언트는 최상위 수준에서 쿼리, 뮤테이션, 서브스크립션을 필터링해야 함
    queries: MigrateProcedureRecord<TV9Router['queries']>;
    mutations: MigrateProcedureRecord<TV9Router['mutations']>;
    subscriptions: MigrateProcedureRecord<TV9Router['subscriptions']>;
  };
} & V10Router</* 빈 객체, v9 라우터는 전달할 v10 프로시저가 없음 */ {}>;