import type { EmbeddedStreamEvent } from '../../agent/embedded/types.js';
import type { ChatStreamEvent, ChatStreamStatus } from './protocol.js';
export type RuntimeStreamEvent = EmbeddedStreamEvent | {
    type: string;
    [key: string]: unknown;
};
export interface ChatStreamMapperOptions {
    runId: string;
    sessionKey: string;
    channel: string;
}
export declare class ChatStreamMapper {
    private readonly opts;
    private assistantIndex;
    private currentAssistantMessageId;
    private lastAssistantMessageId;
    private currentAssistantText;
    private currentAssistantReviewEmitted;
    private toolCallToMessageId;
    private turnDiffs;
    private turnDiffFiles;
    private turnDiffAdded;
    private turnDiffRemoved;
    private started;
    private ended;
    constructor(opts: ChatStreamMapperOptions);
    map(input: RuntimeStreamEvent): ChatStreamEvent[];
    start(): ChatStreamEvent[];
    end(status: ChatStreamStatus, summary?: string): ChatStreamEvent[];
    error(message: string, code?: string): ChatStreamEvent[];
    private mapMessageStart;
    private mapMessageUpdate;
    private mapAssistantSnapshot;
    private mapMessageEnd;
    private mapToolStart;
    private mapToolUpdate;
    private mapToolEnd;
    private ensureAssistantMessageId;
    private nextAssistantMessageId;
    private make;
    private recordPatchDiff;
}