/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import type { IChannelAttributes, IChannelFactory, IFluidDataStoreRuntime, IChannelServices } from "@fluidframework/datastore-definitions/internal";
import { type ISharedObjectKind, type SharedObjectKind } from "@fluidframework/shared-object-base/internal";
import type { ISharedString, SharedStringSegment } from "./sharedString.js";
import { SharedStringClass } from "./sharedString.js";
/**
 * Options for SharedString factories created by {@link configuredSharedString}.
 * @legacy @beta
 */
export interface SharedStringOptions {
    /**
     * Selects the summary format for SharedStrings created or loaded by the factory.
     *
     * @remarks
     * `true` selects the flat format, and `false` selects the legacy format.
     * When omitted, the runtime option takes precedence over the loaded snapshot format.
     * New SharedStrings use the legacy format by default.
     *
     * The `Fluid.Sequence.newMergeTreeSnapshotFormat` configuration flag overrides this factory option.
     * This factory option overrides the `newMergeTreeSnapshotFormat` runtime option.
     * Configuration and runtime options are expected to stay fixed for each DDS instance.
     * Format selection does not force an otherwise unchanged DDS to generate a new summary.
     */
    readonly newMergeTreeSnapshotFormat?: boolean;
}
export declare class SharedStringFactory implements IChannelFactory<ISharedString> {
    static Type: string;
    static readonly Attributes: IChannelAttributes;
    private readonly options;
    constructor(options?: SharedStringOptions);
    static segmentFromSpec(spec: any): SharedStringSegment;
    get type(): string;
    get attributes(): IChannelAttributes;
    load(runtime: IFluidDataStoreRuntime, id: string, services: IChannelServices, attributes: IChannelAttributes): Promise<SharedStringClass>;
    create(document: IFluidDataStoreRuntime, id: string): SharedStringClass;
}
/**
 * Creates a SharedString kind with factory-level options.
 *
 * @param options - Options applied to SharedStrings created or loaded by the returned kind's factory.
 * @returns A SharedString kind to register in place of the default `SharedString`.
 *
 * @remarks
 * The kind uses the same DDS type and summary formats as `SharedString`.
 * The options are captured when this function is called.
 * Each registered factory applies its configuration independently of other clients' factories.
 *
 * @example
 * ```typescript
 * const ConfiguredSharedString = configuredSharedString({
 * 	newMergeTreeSnapshotFormat: true,
 * });
 * const factory = ConfiguredSharedString.getFactory();
 * ```
 *
 * @legacy @beta
 */
export declare function configuredSharedString(options: SharedStringOptions): ISharedObjectKind<ISharedString> & SharedObjectKind<ISharedString>;
/**
 * Entrypoint for {@link ISharedString} creation.
 * @legacy @beta
 */
export declare const SharedString: ISharedObjectKind<ISharedString> & SharedObjectKind<ISharedString>;
/**
 * Alias for {@link ISharedString} for compatibility.
 * @legacy @beta
 */
export type SharedString = ISharedString;
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