import { type NameSlots } from "../session-name";
import type { ContentTier, ConversationMeta, MessageSender, MessageSnapshot } from "../types";
export interface ReducerState {
    sessionId: string;
    nameSlots: NameSlots;
    latestTimestamp: string;
    cwd: string;
    teamName: string;
    model: string | null;
    messageCount: number;
    pageMessageCount: number;
    lastMessageSender: MessageSender;
    agentId: string;
    isSidechain: boolean;
    isTeammate: boolean;
    firstUserSeen: boolean;
    firstMessage: MessageSnapshot | null;
    lastMessage: MessageSnapshot | null;
    lastPrompt: string;
    toolNames: string[];
    previewParts: string[];
    snippetParts: string[];
    previewLength: number;
    snippetLength: number;
    badJsonLines: number;
}
export declare function initialReducerState(): ReducerState;
export declare function reduceLine(state: ReducerState, entry: Record<string, unknown>, tier: ContentTier): void;
export declare function finalizeMeta(state: ReducerState, filePath: string, account: string, tier: ContentTier): ConversationMeta | null;
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