import { LitElement, TemplateResult, CSSResult } from 'lit';
import { AgentAdapter, Suggestion, FeatureToggle } from '../ai-chatbot';
declare global {
    interface HTMLElementTagNameMap {
        'forge-ai-embedded-chat': AiEmbeddedChatComponent;
    }
    interface HTMLElementEventMap {
        'forge-ai-embedded-chat-expand': CustomEvent<void>;
        'forge-ai-embedded-chat-collapse': CustomEvent<void>;
    }
}
export declare const AiEmbeddedChatComponentTagName: keyof HTMLElementTagNameMap;
/**
 * @tag forge-ai-embedded-chat
 *
 * @slot header-title - Slot for custom header title content (default: "AI Assistant")
 * @slot empty-state-heading - Slot for custom empty state heading
 *
 * @event {CustomEvent<void>} forge-ai-embedded-chat-expand - Fired when the chat is expanded to modal view
 * @event {CustomEvent<void>} forge-ai-embedded-chat-collapse - Fired when the chat is collapsed from modal view
 *
 * @description A form factor component that embeds ai-chatbot within ai-gradient-container
 * for inline page usage with optional modal expansion functionality. When expanded, the chat
 * is displayed in a fullscreen modal. The chatbot component handles all chat UI.
 * All chatbot events (message-sent, message-received, tool-call, error, clear, info, connected, disconnected) bubble through unchanged.
 *
 * @property {AgentAdapter} adapter - Required. The adapter for communication with the AI service
 * @property {FeatureToggle} fileUpload - Enable file upload functionality (default: 'off')
 * @property {string} placeholder - Placeholder text for input (default: "Ask a question...")
 * @property {Suggestion[]} suggestions - Optional suggestions for empty state
 * @property {string} gradientVariant - Gradient variant for embedded view ('low' | 'medium' | 'high', default: 'medium')
 */
export declare class AiEmbeddedChatComponent extends LitElement {
    #private;
    static styles: CSSResult;
    /**
     * Controls whether the modal view is open when expanded.
     */
    expanded: boolean;
    /**
     * Controls the gradient variant applied to the container.
     */
    gradientVariant: 'low' | 'medium' | 'high';
    adapter?: AgentAdapter;
    threadId?: string;
    fileUpload: FeatureToggle;
    placeholder: string;
    suggestions?: Suggestion[];
    private _isModalFullscreen;
    updated(): void;
    render(): TemplateResult;
    /**
     * Expands the chat to modal view.
     */
    expand(): void;
    /**
     * Collapses the chat from modal view back to embedded view.
     */
    collapse(): void;
}