/**
 * Runtime envelope builders for message schemas.
 * Provides two forms: object-oriented (primary) and positional (compact).
 *
 * Both return strict Zod root objects with non-enumerable hints for the router
 * and per-schema options (validateOutgoing, strict) for granular control.
 *
 * Users can compose schemas before wrapping to preserve type safety:
 * const JoinPayload = z.object({roomId: z.string()}).transform(...);
 * const Join = message({ type: "JOIN", payload: JoinPayload, options: {...} });
 */
import { type SchemaOpts } from "@ws-kit/core/internal";
import { z, type ZodDefault, type ZodLiteral, type ZodObject, type ZodOptional, type ZodRawShape, type ZodType } from "zod";
import type { BrandedSchema } from "./types.js";
/**
 * Symbol for Zod payload schema (validator-specific).
 * Stores the Zod schema for the payload field.
 */
export declare const ZOD_PAYLOAD: unique symbol;
/**
 * Standard meta fields that are always allowed.
 * Users can extend with additional required or optional fields.
 */
declare const STANDARD_META_FIELDS: {
    timestamp: z.ZodOptional<z.ZodNumber>;
    correlationId: z.ZodOptional<z.ZodString>;
};
/**
 * Helper type to infer actual types from ZodRawShape or ZodObject.
 * Converts each Zod schema in a shape to its inferred type.
 *
 * @internal
 */
type InferPayloadShape<P extends ZodRawShape | ZodObject<any> | undefined> = P extends undefined ? never : P extends ZodRawShape ? {
    [K in keyof P]: P[K] extends ZodType<infer U> ? U : never;
} : P extends ZodObject<any> ? z.infer<P> : never;
/**
 * Helper to construct the Zod shape for the message root object.
 * This ensures z.infer<typeof Message> returns the correct structure.
 */
type MessageZodShape<T extends string, P extends ZodRawShape | ZodObject<any> | undefined, M extends ZodRawShape | undefined> = {
    type: ZodLiteral<T>;
    meta: ZodDefault<ZodOptional<ZodObject<M extends ZodRawShape ? Omit<typeof STANDARD_META_FIELDS, keyof M> & M : typeof STANDARD_META_FIELDS>>>;
} & (P extends undefined ? {} : {
    payload: P extends ZodObject<any> ? P : P extends ZodRawShape ? ZodObject<P> : never;
});
/**
 * Creates a strict Zod root message schema.
 * Supports two forms: object-oriented (primary) and positional (compact).
 *
 * Object form (recommended for clarity and extensibility):
 * ```typescript
 * const Join = message({
 *   type: "USER_JOIN",
 *   payload: z.object({ roomId: z.string() }),
 *   options: { strict: true }
 * });
 * ```
 *
 * Positional form (for small, one-off schemas):
 * ```typescript
 * const Ping = message("PING");
 * const Join = message("USER_JOIN", { roomId: z.string() });
 * ```
 */
export declare function message<const T extends string, P extends ZodRawShape | ZodObject<any> | undefined = undefined, M extends ZodRawShape | undefined = undefined>(spec: {
    type: T;
    payload?: P;
    meta?: M;
    options?: SchemaOpts;
}): ZodObject<MessageZodShape<T, P, M>> & BrandedSchema<T, P extends undefined ? never : InferPayloadShape<P>, never, M extends ZodRawShape ? {
    [K in keyof M]: M[K] extends ZodType<infer U> ? U : never;
} : {}> & {
    readonly messageType: T;
    readonly __zod_payload: P;
    readonly __descriptor: {
        readonly messageType: T;
        readonly kind: "event";
    };
    readonly __runtime: "ws-kit-schema";
};
export declare function message<const T extends string, P extends ZodRawShape | ZodObject<any> | undefined = undefined, M extends ZodRawShape | undefined = undefined>(type: T, payload?: P, metaShape?: M): ZodObject<MessageZodShape<T, P, M>> & BrandedSchema<T, P extends undefined ? never : InferPayloadShape<P>, never, M extends ZodRawShape ? {
    [K in keyof M]: M[K] extends ZodType<infer U> ? U : never;
} : {}> & {
    readonly messageType: T;
    readonly __zod_payload: P;
    readonly __descriptor: {
        readonly messageType: T;
        readonly kind: "event";
    };
    readonly __runtime: "ws-kit-schema";
};
/**
 * Creates an RPC schema with separate request and response message definitions.
 * Supports two forms: object-oriented (primary) and positional (compact).
 *
 * Object form (recommended for granular control):
 * ```typescript
 * const GetUser = rpc({
 *   req: {
 *     type: "GET_USER",
 *     payload: z.object({ id: z.string() })
 *   },
 *   res: {
 *     type: "USER",
 *     payload: z.object({ id: z.string(), name: z.string() }),
 *     options: { validateOutgoing: true }
 *   }
 * });
 * ```
 *
 * Positional form (for simple, compact contracts):
 * ```typescript
 * const GetUser = rpc(
 *   "GET_USER", { id: z.string() },
 *   "USER",     { id: z.string(), name: z.string() }
 * );
 * ```
 */
export declare function rpc<const ReqT extends string, ReqP extends ZodRawShape | ZodObject<any> | undefined, ResT extends string, ResP extends ZodRawShape | ZodObject<any> | undefined, ReqM extends ZodRawShape | undefined = undefined, ResM extends ZodRawShape | undefined = undefined>(spec: {
    req: {
        type: ReqT;
        payload?: ReqP;
        meta?: ReqM;
        options?: SchemaOpts;
    };
    res: {
        type: ResT;
        payload?: ResP;
        meta?: ResM;
        options?: SchemaOpts;
    };
}): ZodObject<MessageZodShape<ReqT, ReqP, ReqM>> & BrandedSchema<ReqT, ReqP extends undefined ? never : InferPayloadShape<ReqP>, ResP extends undefined ? never : InferPayloadShape<ResP>, ReqM extends ZodRawShape ? {
    [K in keyof ReqM]: ReqM[K] extends ZodType<infer U> ? U : never;
} : {}> & {
    readonly response: ZodObject<MessageZodShape<ResT, ResP, ResM>> & BrandedSchema<ResT, ResP extends undefined ? never : InferPayloadShape<ResP>, never, ResM extends ZodRawShape ? {
        [K in keyof ResM]: ResM[K] extends ZodType<infer U> ? U : never;
    } : {}> & {
        readonly messageType: ResT;
        readonly __zod_payload: ResP;
        readonly __descriptor: {
            readonly messageType: ResT;
            readonly kind: "event";
        };
        readonly __runtime: "ws-kit-schema";
    };
    readonly messageType: ReqT;
    readonly __zod_payload: ReqP;
    readonly __descriptor: {
        readonly messageType: ReqT;
        readonly kind: "rpc";
    };
    readonly __runtime: "ws-kit-schema";
};
export declare function rpc<const ReqT extends string, ReqP extends ZodRawShape | ZodObject<any> | undefined, ResT extends string, ResP extends ZodRawShape | ZodObject<any> | undefined>(requestType: ReqT, requestPayload: ReqP, responseType: ResT, responsePayload: ResP): ZodObject<MessageZodShape<ReqT, ReqP, undefined>> & BrandedSchema<ReqT, ReqP extends undefined ? never : InferPayloadShape<ReqP>, ResP extends undefined ? never : InferPayloadShape<ResP>, {}> & {
    readonly response: ZodObject<MessageZodShape<ResT, ResP, undefined>> & BrandedSchema<ResT, ResP extends undefined ? never : InferPayloadShape<ResP>, never, {}> & {
        readonly messageType: ResT;
        readonly __zod_payload: ResP;
        readonly __descriptor: {
            readonly messageType: ResT;
            readonly kind: "event";
        };
        readonly __runtime: "ws-kit-schema";
    };
    readonly messageType: ReqT;
    readonly __zod_payload: ReqP;
    readonly __descriptor: {
        readonly messageType: ReqT;
        readonly kind: "rpc";
    };
    readonly __runtime: "ws-kit-schema";
};
export {};
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