// trpc-helper.ts

// Import AppRouter from your main server router

import type {

inferProcedureInput,

inferProcedureOutput,

inferSubscriptionOutput,

} from '@trpc/server';

import type { AppRouter } from 'api/src/routers/_app';

/**

* Enum containing all api query paths

*/

export type TQuery = keyof AppRouter['_def']['queries'];

/**

* Enum containing all api mutation paths

*/

export type TMutation = keyof AppRouter['_def']['mutations'];

/**

* Enum containing all api subscription paths

*/

export type TSubscription = keyof AppRouter['_def']['subscriptions'];

/**

* This is a helper method to infer the output of a query resolver

* @example type HelloOutput = InferQueryOutput<'hello'>

*/

export type InferQueryOutput<TRouteKey extends TQuery> = inferProcedureOutput<

AppRouter['_def']['queries'][TRouteKey]

>;

/**

* This is a helper method to infer the input of a query resolver

* @example type HelloInput = InferQueryInput<'hello'>

*/

export type InferQueryInput<TRouteKey extends TQuery> = inferProcedureInput<

AppRouter['_def']['queries'][TRouteKey]

>;

/**

* This is a helper method to infer the output of a mutation resolver

* @example type HelloOutput = InferMutationOutput<'hello'>

*/

export type InferMutationOutput<TRouteKey extends TMutation> =

inferProcedureOutput<AppRouter['_def']['mutations'][TRouteKey]>;

/**

* This is a helper method to infer the input of a mutation resolver

* @example type HelloInput = InferMutationInput<'hello'>

*/

export type InferMutationInput<TRouteKey extends TMutation> =

inferProcedureInput<AppRouter['_def']['mutations'][TRouteKey]>;

/**

* This is a helper method to infer the output of a subscription resolver

* @example type HelloOutput = InferSubscriptionOutput<'hello'>

*/

export type InferSubscriptionOutput<TRouteKey extends TSubscription> =

inferProcedureOutput<AppRouter['_def']['subscriptions'][TRouteKey]>;

/**

* This is a helper method to infer the asynchronous output of a subscription resolver

* @example type HelloAsyncOutput = InferAsyncSubscriptionOutput<'hello'>

*/

export type InferAsyncSubscriptionOutput<TRouteKey extends TSubscription> =

inferSubscriptionOutput<AppRouter, TRouteKey>;

/**

* This is a helper method to infer the input of a subscription resolver

* @example type HelloInput = InferSubscriptionInput<'hello'>

*/

export type InferSubscriptionInput<TRouteKey extends TSubscription> =

inferProcedureInput<AppRouter['_def']['subscriptions'][TRouteKey]>;