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/**
* The union type representing all standard HTTP status codes and a special code `-1`.
*/
export type StatusCode =
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/**
* The `ResponseConfig | ReferenceObject` provided by @hono/zod-openapi.
*/
export type ResponsesEntry = NonNullable<RouteConfig['responses']>[StatusCode];
/**
* The type representing user-defined responses configuration.
*/
export type ResponsesConfig = Partial<Record<StatusCode, ResponsesEntry>>;
/**
* The type representing user-defined status codes extracted from the user-defined responses configuration.
*
* @template M - The user-defined status codes type (M extends ResponsesConfig).
* @extends {ResponsesConfig}
*/
export type UserDefinedStatusCode<M extends ResponsesConfig> = Extract<StatusCode, keyof M>;
/**
* The type that identifies duplicate elements in a tuple. \
* If there are no duplicates, it returns an empty tuple.
*
* @template Elm - The type of elements in the tuple (Elm extends UserDefinedStatusCode<ResponsesConfig>).
* @template Arr - The tuple type to check for duplicates (Arr extends Readonly<Elm[]>).
* @template Seen - The tuple type that keeps track of seen elements (default is an empty tuple).
* @template Duplication - The tuple type that accumulates duplicate elements (default is an empty tuple).
*/
export type DuplicateStatusCode<
Elm extends UserDefinedStatusCode<ResponsesConfig>,
Arr extends Readonly<Elm[]>,
Seen extends Readonly<Elm[]> = [],
Duplication extends Readonly<Elm[]> = []
> = Arr extends Readonly<[infer Head extends Elm, ...infer Tail extends Elm[]]>
? Head extends Seen[number]
? DuplicateStatusCode<Elm, Tail, Seen, [...Duplication, Head]>
: DuplicateStatusCode<Elm, Tail, [...Seen, Head], Duplication>
: Duplication;
/**
* The type that checks for duplicates in a tuple. \
* If duplicates are found, it returns `never`; otherwise, it returns `Arr`.
*
* @template Elm - The type of elements in the tuple (Elm extends UserDefinedStatusCode<ResponsesConfig>).
* @template Arr - The tuple type to check for uniqueness (Arr extends Readonly<Elm[]>).
* @template Seen - The tuple type that keeps track of seen elements (default is an empty tuple).
*/
export type UniqueTuple<
Elm extends UserDefinedStatusCode<ResponsesConfig>,
Arr extends Readonly<Elm[]>,
Seen extends Readonly<Elm[]> = []
> = Arr extends Readonly<[infer Head extends Elm, ...infer Tail extends Elm[]]>
? Head extends Seen[number]
? never
: Readonly<[Head, ...UniqueTuple<Elm, Tail, [...Seen, Head]>]>
: Arr;
/**
* The type that if Elm satisfies `Elm extends never`, it returns zod-openapi-share defined error type (`{ __error: 'Status codes have to be unique.'; __duplicate_status_codes: DuplicateStatusCode<Elm, T>;}`); otherwise, it returns `Arr`.
*
* @template Elm - The type of elements in the tuple (Elm extends UserDefinedStatusCode<ResponsesConfig>).
* @template T - The tuple type to check for uniqueness (T extends Readonly<Elm[]>).
*/
export type NeverWrapper<Elm extends UserDefinedStatusCode<ResponsesConfig>, T extends Readonly<Elm[]>> = UniqueTuple<
Elm,
T
> extends never
? {
__error: 'Status codes have to be unique.';
__duplicate_status_codes: DuplicateStatusCode<Elm, T>;
}
: UniqueTuple<Elm, T>;
/**
* The interface that defines the methods of createOpenAPISchema class.
*/
export type CreateSchemaInterface = {
createSchema<M extends ResponsesConfig, R extends RouteConfig, T extends Readonly<UserDefinedStatusCode<M>[]>>(
route: R,
statusCodes?: UniqueTuple<UserDefinedStatusCode<M>, T>
): R;
};
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