/*!
 * Copyright 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */
import { ExtendedHTMLElement } from '../../helper/dom';
import { DetailedList, PromptAttachmentType } from '../../static';
import { TopBarButtonOverlayProps } from './prompt-input/prompt-top-bar/top-bar-button';
export declare const MAX_USER_INPUT_THRESHOLD = 96;
export declare const MAX_USER_INPUT: () => number;
export declare const INPUT_LENGTH_WARNING_THRESHOLD: () => number;
export interface ChatPromptInputProps {
    tabId: string;
    onStopChatResponse?: (tabId: string) => void;
}
export declare class ChatPromptInput {
    render: ExtendedHTMLElement;
    private readonly props;
    private readonly attachmentWrapper;
    private readonly promptTextInput;
    private readonly contextSelectorButton;
    private readonly promptTextInputCommand;
    private readonly sendButton;
    private readonly stopButton;
    private readonly progressIndicator;
    private readonly promptAttachment;
    private readonly promptOptions;
    private readonly promptTopBar;
    private readonly chatPrompt;
    private quickPickItemsSelectorContainer;
    private promptTextInputLabel;
    private remainingCharsOverlay;
    /**
     * Preserves cursor position when `@` key is pressed
     */
    private quickPickTriggerIndex;
    /**
     * Preserves selection range when `@` key is pressed
     */
    private quickPickTriggerRange?;
    private quickPickType;
    private quickPickItemGroups;
    /**
     * Snapshot of contextCommands taken when the picker opens.
     * Used for sub-menu navigation so that server-side filter responses
     * (which update the store's contextCommands) don't overwrite the
     * base set the user is browsing.
     */
    private baseContextCommands;
    /**
     * When the user clicks into a sub-menu (e.g. @Folders), this holds the
     * `command` string of the parent. The contextCommands store listener
     * uses it to refresh the visible sub-menu's children in place when a
     * fresh fetch returns, instead of snapping back to the top-level menu.
     */
    private activeSubMenuCommand;
    private topBarTitleClicked;
    private filteredQuickPickItemGroups;
    private searchTerm;
    private quickPick;
    private quickPickOpen;
    private selectedCommand;
    private readonly userPromptHistory;
    private userPromptHistoryIndex;
    private lastUnsentUserPrompt;
    private readonly markerRemovalRegex;
    private quickPickFilterDebounceTimer;
    constructor(props: ChatPromptInputProps);
    private readonly onContextSelectorButtonClick;
    private readonly updateAvailableCharactersIndicator;
    private readonly handleInputKeydown;
    private readonly tabBarTitleOverlayKeyPressHandler;
    private readonly openQuickPick;
    private readonly handleInputFocus;
    /**
     * Build a top-level skeleton from a previously-rendered context structure:
     * keep all top-level commands (Files / Folders / Code / Prompts / Image, ...)
     * with their metadata (icon, description, command name) so the picker shows
     * the categories immediately, but strip the children to an empty group so
     * stale items from a previous search session don't leak through.
     *
     * Note: this only preserves the FIRST child group of each command. Top-level
     * context commands always ship a single child group, so this is fine in
     * practice. If a command has no children (e.g. @workspace, @image), it is
     * passed through unchanged.
     */
    private readonly buildContextSkeleton;
    private readonly getQuickPickItemGroups;
    private readonly handleQuickActionCommandSelection;
    private readonly handleContextCommandSelection;
    private readonly sendPrompt;
    private readonly getPromptInputTextLabel;
    readonly clearTextArea: (keepAttachment?: boolean) => void;
    readonly getCursorPosition: () => number;
    readonly addAttachment: (attachmentContent: string, type?: PromptAttachmentType) => void;
    readonly openTopBarButtonItemOverlay: (data: TopBarButtonOverlayProps) => void;
    readonly updateTopBarButtonItemOverlay: (data: DetailedList) => void;
    readonly closeTopBarButtonItemOverlay: () => void;
    readonly destroy: () => void;
    readonly getCurrentTriggerSource: () => 'top-bar' | 'prompt-input';
}