import type { StreamChat } from './client';
import { StateStore } from './store';
import type { AttachmentManager } from '.';
export type UploadRecord = {
    id: string;
    uploadProgress?: number;
};
export type UploadManagerState = {
    uploads: Record<string, UploadRecord>;
};
/**
 * @internal
 */
export declare class UploadManager {
    private readonly client;
    readonly state: StateStore<UploadManagerState>;
    private inFlightUploads;
    constructor(client: StreamChat);
    private resolveAttachmentManager;
    get uploads(): Record<string, UploadRecord>;
    getUpload: (id: string) => UploadRecord;
    /**
     * Clears all upload records.
     * Invoked when the user disconnects so a later session does not inherit stale upload state.
     * Aborts every in-flight upload request via its `UploadRequestOptions.abortSignal`.
     */
    reset: () => void;
    /**
     * Removes the upload record for `id` if present.
     * If an upload is still in progress, aborts its `UploadRequestOptions.abortSignal`.
     */
    deleteUploadRecord: (id: string) => void;
    /**
     * Starts an upload for `id`, or returns the existing in-flight promise if one is already running.
     * Uses {@link StreamChat.channel}(`channelCid`) → `messageComposer.attachmentManager.doUploadRequest`.
     * Resolves with that result; rejects if the upload rejects (the record is removed from state either way).
     */
    upload: ({ id, channelCid, file, }: {
        id: string;
        channelCid: string;
        file: Parameters<typeof AttachmentManager.prototype.doUploadRequest>[0];
    }) => ReturnType<typeof AttachmentManager.prototype.doUploadRequest>;
    private upsertUpload;
    private updateUpload;
}