import { z } from 'zod';
/**
 * Built-in blob store types shipped by `@dexto/storage`.
 * Custom backends shipped via images are not included in this list.
 */
export declare const BLOB_STORE_TYPES: readonly ["in-memory", "local"];
export type BlobStoreType = (typeof BLOB_STORE_TYPES)[number];
/**
 * In-memory blob store configuration
 */
declare const InMemoryBlobStoreSchema: z.ZodObject<{
    type: z.ZodLiteral<"in-memory">;
    maxBlobSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    maxTotalSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
}, z.core.$strict>;
export type InMemoryBlobStoreConfigInput = z.input<typeof InMemoryBlobStoreSchema>;
export type InMemoryBlobStoreConfig = z.output<typeof InMemoryBlobStoreSchema>;
/**
 * Local filesystem blob store configuration
 */
declare const LocalBlobStoreSchema: z.ZodObject<{
    type: z.ZodLiteral<"local">;
    storePath: z.ZodString;
    maxBlobSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    maxTotalSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    cleanupAfterDays: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
}, z.core.$strict>;
export type LocalBlobStoreConfigInput = z.input<typeof LocalBlobStoreSchema>;
export type LocalBlobStoreConfig = z.output<typeof LocalBlobStoreSchema>;
/**
 * Blob store configuration schema.
 *
 * This schema uses `.passthrough()` to accept any backend-specific configuration.
 * It only validates that a `type` field exists as a string.
 *
 * Detailed validation happens in the product-layer resolver (`@dexto/agent-config`) via
 * each image factory's `configSchema`. Built-in backends are validated by their factory schemas.
 *
 * This approach allows:
 * - Custom backends to be provided by a custom image
 * - Each backend to define its own configuration structure and strict schema
 *
 * Example flow:
 * 1. Config passes this schema (basic structure check)
 * 2. Product layer resolves backend via image + validates against factory schema
 * 3. Core receives a concrete `BlobStore` instance (DI)
 */
export declare const BlobStoreConfigSchema: z.ZodObject<{
    type: z.ZodString;
}, z.core.$loose>;
/**
 * Blob store configuration type.
 *
 * Union type including built-in backends (local, in-memory) and a catch-all
 * for custom backends provided via images at runtime.
 */
export type BlobStoreConfig = InMemoryBlobStoreConfig | LocalBlobStoreConfig | {
    type: string;
    [key: string]: unknown;
};
export { InMemoryBlobStoreSchema, LocalBlobStoreSchema };
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