import { ComputedRef, MaybeRefOrGetter } from 'vue';
import { IMessage } from '@cognigy/socket-client';
import { ChatConfig } from '../types';
/**
 * A message that may have been collated from multiple bot messages.
 * When collated, text becomes an array and collatedFrom contains the originals.
 */
export type CollatedMessage = IMessage & {
    /**
     * Original messages that were collated into this one (only present if collated)
     */
    collatedFrom?: IMessage[];
};
export interface UseCollationReturn {
    /**
     * Messages with consecutive bot messages collated
     */
    collatedMessages: ComputedRef<CollatedMessage[]>;
    /**
     * Whether collation is currently enabled
     */
    isCollationEnabled: ComputedRef<boolean>;
    /**
     * Original message count
     */
    originalCount: ComputedRef<number>;
    /**
     * Collated message count
     */
    collatedCount: ComputedRef<number>;
}
/**
 * Collate consecutive bot messages into combined messages
 *
 * @param messages - Array of messages (can be ref, getter, or plain value)
 * @param config - Chat configuration (can be ref, getter, or plain value)
 * @returns Reactive collated messages
 *
 * @example
 * ```ts
 * const { collatedMessages, isCollationEnabled } = useCollation(messages, config)
 *
 * // Use in template
 * <Message v-for="msg in collatedMessages" :key="msg.traceId" :message="msg" />
 * ```
 */
export declare function useCollation(messages: MaybeRefOrGetter<IMessage[]>, config?: MaybeRefOrGetter<ChatConfig | undefined>): UseCollationReturn;