/**
 * Validator adapter contract (core-level).
 * Actual validators (Zod, Valibot, custom) implement this interface.
 *
 * Core never creates validators; they are injected by plugins.
 */
import type { MessageDescriptor } from "../../protocol/message-descriptor.js";
/**
 * Validator: parses + validates message payloads against schemas.
 */
export interface ValidatorAdapter {
    /**
     * Validate incoming message against schema.
     * Returns validated payload or throws ValidationError.
     */
    validate(schema: MessageDescriptor, raw: unknown): unknown;
    /**
     * Validate outgoing payload against schema.
     * Used by ctx.send(), ctx.reply(), etc. to catch errors early.
     */
    validateOutgoing(schema: MessageDescriptor, payload: unknown): unknown;
}
/**
 * Context extensions provided by validation (used by handlers).
 */
export interface ValidationContext {
    /**
     * Validated payload (inferred from schema).
     */
    readonly payload: unknown;
    /**
     * Send event (only in event handlers).
     */
    send?(schema: MessageDescriptor, payload: unknown): Promise<void>;
    /**
     * RPC reply (only in RPC handlers).
     */
    reply?(payload: unknown): Promise<void>;
    /**
     * RPC progress (only in RPC handlers).
     */
    progress?(payload: unknown): Promise<void>;
}
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