/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import { TurnContext } from '../turnContext';
import { TurnState } from './turnState';
/**
 * Represents a file input with its content, type, and optional URL.
 */
export interface InputFile {
    /**
     * The content of the file as a Buffer.
     */
    content: Buffer;
    /**
     * The MIME type of the file content.
     */
    contentType: string;
    /**
     * An optional URL pointing to the file content.
     */
    contentUrl?: string;
}
/**
 * Interface for downloading input files in a specific turn context and state.
 */
export interface InputFileDownloader<TState extends TurnState = TurnState> {
    /**
     * Downloads files based on the provided turn context.
     *
     * @param context - The turn context for the current operation.
     * @returns A promise that resolves to an array of input files.
     */
    downloadFiles(context: TurnContext): Promise<InputFile[]>;
    /**
     * Downloads files based on the provided turn context and store them in the provided state.
     *
     * @param context - The turn context for the current operation.
     * @param state - The state associated with the current turn.
     * @returns A promise that resolves once the files have been saved into state (void).
     */
    downloadAndStoreFiles(context: TurnContext, state: TState): Promise<void>;
}