import { LitElement, TemplateResult, PropertyValues, CSSResult } from 'lit';
import { MessageItem, ToolDefinition } from '../ai-chatbot/types.js';
import { FeatureToggle } from '../ai-chatbot/ai-chatbot.js';
declare global {
    interface HTMLElementTagNameMap {
        'forge-ai-message-thread': AiMessageThreadComponent;
    }
    interface HTMLElementEventMap {
        'forge-ai-message-thread-copy': CustomEvent<ForgeAiMessageThreadCopyEventData>;
        'forge-ai-message-thread-resend': CustomEvent<ForgeAiMessageThreadResendEventData>;
        'forge-ai-message-thread-thumbs-up': CustomEvent<ForgeAiMessageThreadThumbsEventData>;
        'forge-ai-message-thread-thumbs-down': CustomEvent<ForgeAiMessageThreadThumbsEventData>;
        'forge-ai-message-thread-user-copy': CustomEvent<ForgeAiMessageThreadCopyEventData>;
        'forge-ai-message-thread-user-resend': CustomEvent<ForgeAiMessageThreadResendEventData>;
        'forge-ai-message-thread-user-edit': CustomEvent<ForgeAiMessageThreadEditEventData>;
    }
}
export interface ForgeAiMessageThreadCopyEventData {
    messageId: string;
}
export interface ForgeAiMessageThreadResendEventData {
    messageId: string;
}
export interface ForgeAiMessageThreadThumbsEventData {
    messageId: string;
    feedback?: string;
}
export interface ForgeAiMessageThreadEditEventData {
    messageId: string;
    content: string;
}
export declare const AiMessageThreadComponentTagName: keyof HTMLElementTagNameMap;
/**
 * @tag forge-ai-message-thread
 *
 * @summary A primitive component for rendering a thread of chat messages, including user, assistant, system, and tool call messages.
 *
 * @description
 * The AI Message Thread component displays a chronological list of messages with support for markdown rendering,
 * tool calls, empty states, and thinking indicators. It handles its own scrolling behavior with auto-scroll support.
 *
 * @slot empty-state-icon - Slot for custom empty state icon
 * @slot empty-state-heading - Slot for custom empty state heading content
 * @slot empty-state-message - Slot for custom empty state message content
 * @slot empty-state-actions - Slot for custom empty state actions (e.g., suggestions)
 *
 * @cssproperty --forge-ai-message-thread-content-max-width - Controls the max-width of the message content area while keeping the scroll container full width.
 *
 * @event {CustomEvent<ForgeAiMessageThreadCopyEventData>} forge-ai-message-thread-copy - Fired when user clicks copy on a message
 * @event {CustomEvent<ForgeAiMessageThreadResendEventData>} forge-ai-message-thread-resend - Fired when user clicks resend on a message
 * @event {CustomEvent<ForgeAiMessageThreadThumbsEventData>} forge-ai-message-thread-thumbs-up - Fired when user gives thumbs up
 * @event {CustomEvent<ForgeAiMessageThreadThumbsEventData>} forge-ai-message-thread-thumbs-down - Fired when user gives thumbs down
 */
export declare class AiMessageThreadComponent extends LitElement {
    #private;
    static styles: CSSResult;
    messageItems: MessageItem[];
    tools?: Map<string, ToolDefinition>;
    enableReactions: boolean;
    showThinking: boolean;
    autoScroll: FeatureToggle;
    debugMode: boolean;
    private _messageThreadContainer;
    connectedCallback(): void;
    disconnectedCallback(): void;
    firstUpdated(): void;
    updated(changedProperties: PropertyValues<this>): void;
    scrollToBottom({ force, behavior }?: {
        force?: boolean;
        behavior?: ScrollBehavior;
    }): void;
    render(): TemplateResult;
}