import type { ConversationEvent } from "#client/conversation-reducer.js";
import type { EveAgentReducerEvent } from "#client/reducer.js";
interface ProjectionReducer<TData, TEvent> {
    initial(): TData;
    reduce(data: TData, event: TEvent): TData;
}
/**
 * The part of a projection that root-stream bookkeeping writes. Its entries can include the
 * canonical conversation's agent-session events, so predicates see the wider event type.
 */
export interface EveAgentEventLog {
    append(event: EveAgentReducerEvent): void;
    remove(predicate: (event: ConversationEvent) => boolean): void;
    replace(predicate: (event: ConversationEvent) => boolean, replacement: EveAgentReducerEvent): void;
    reset(): void;
}
/** Owns chronological reducer replay when optimistic events are replaced by server events. */
export declare class EveAgentProjection<TData, TEvent = EveAgentReducerEvent> {
    #private;
    constructor(reducer: ProjectionReducer<TData, TEvent>, events: readonly TEvent[]);
    get data(): TData;
    get reducer(): ProjectionReducer<TData, TEvent>;
    reset(): void;
    append(event: TEvent): void;
    remove(predicate: (event: TEvent) => boolean): void;
    replace(predicate: (event: TEvent) => boolean, replacement: TEvent): void;
}
export {};