import { Vowel } from '../core/VowelClient';
import { VowelAction, ActionHandler, VowelVoiceConfig, VowelClientConfig } from '../types';
/**
 * Action registration entry
 */
interface ActionRegistration {
    definition: VowelAction;
    handler: ActionHandler;
}
/**
 * Per-instance state
 */
interface InstanceState {
    /** Unique instance ID */
    id: string;
    /** Vowel client instance */
    client: Vowel | null;
    /** Registered actions for this instance */
    actions: Map<string, ActionRegistration>;
    /** Instance configuration */
    config: {
        instructions?: string;
        systemInstructionOverride?: string;
        language?: string;
        initialGreetingPrompt?: string;
        turnDetectionPreset?: 'aggressive' | 'balanced' | 'conservative';
        /** @deprecated Prefer `_voiceConfig`. */
        voiceConfig?: VowelVoiceConfig;
        _voiceConfig?: VowelVoiceConfig;
        floatingCursor?: VowelClientConfig['floatingCursor'];
        _caption?: VowelClientConfig['_caption'];
        borderGlow?: VowelClientConfig['borderGlow'];
    };
}
/**
 * Global registry of web component instances
 */
declare class VowelWebComponentRegistry {
    private instances;
    private elementToInstanceId;
    /**
     * Register a new web component instance
     */
    registerInstance(element: HTMLElement): string;
    /**
     * Unregister a web component instance
     */
    unregisterInstance(instanceIdOrElement: string | HTMLElement): void;
    /**
     * Get instance ID from element
     */
    getInstanceId(element: HTMLElement): string | undefined;
    /**
     * Get instance state
     */
    getInstance(instanceIdOrElement: string | HTMLElement): InstanceState | undefined;
    /**
     * Set Vowel client for an instance
     */
    setClient(instanceId: string, client: Vowel): void;
    /**
     * Get Vowel client for an instance
     */
    getClient(instanceIdOrElement: string | HTMLElement): Vowel | null;
    /**
     * Register an action for a specific instance
     */
    registerAction(instanceIdOrElement: string | HTMLElement, name: string, definition: VowelAction, handler: ActionHandler): void;
    /**
     * Get all actions for an instance
     */
    getActions(instanceIdOrElement: string | HTMLElement): Map<string, ActionRegistration>;
    /**
     * Set configuration for an instance
     */
    setConfig(instanceIdOrElement: string | HTMLElement, config: InstanceState['config']): void;
    /**
     * Get configuration for an instance
     */
    getConfig(instanceIdOrElement: string | HTMLElement): InstanceState['config'];
    /**
     * Generate a unique instance ID
     */
    private generateInstanceId;
    /**
     * Get all registered instances (for debugging)
     */
    getAllInstances(): string[];
}
/**
 * Global singleton instance
 */
export declare const vowelRegistry: VowelWebComponentRegistry;
export {};
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