import type { ChatStreamEvent } from '../../../chat-protocol/events';
import { type ChatDialogSide, type ChatDialogStore } from './chat-dialog-store';
import type { ChatReducerState, ChatStreamReducer, ChatStreamReducerOptions } from './chat-stream-reducer';
export interface UseChatStreamReducerOptions {
    store: ChatDialogStore;
    dialogId: string;
    side?: ChatDialogSide;
    /** Consulted once, when this (dialogId, side) reducer is first created. */
    createReducerOptions?: () => ChatStreamReducerOptions;
}
export interface UseChatStreamReducerReturn {
    state: ChatReducerState;
    /** Apply a decoded event (deltas are batched; everything else immediate). */
    applyEvent: (event: ChatStreamEvent) => void;
    /** Synchronously apply any pending delta batch. */
    flushDeltas: () => void;
    /** Run reducer commands (adapter-driven, non-wire mutations). */
    mutate: <T>(fn: (reducer: ChatStreamReducer) => T) => T;
    reducer: ChatStreamReducer;
}
export declare function useChatStreamReducer({ store, dialogId, side, createReducerOptions, }: UseChatStreamReducerOptions): UseChatStreamReducerReturn;
//# sourceMappingURL=use-chat-stream-reducer.d.ts.map