export interface OpenCodeConversationSession {
    id: string;
    title?: string;
    directory?: string;
    time?: {
        created?: number;
        updated?: number;
    };
}
export interface OpenCodeConversationMessage {
    info?: {
        role?: string;
        time?: {
            created?: number;
            completed?: number;
        };
    };
    parts?: Array<{
        type?: string;
        text?: string;
        synthetic?: boolean;
        ignored?: boolean;
    }>;
}
export interface OpenCodeConversationSearchSource {
    listSessions(directory: string): Promise<OpenCodeConversationSession[]>;
    listMessages(sessionId: string, directory: string, limit: number): Promise<OpenCodeConversationMessage[]>;
}
export interface OpenCodeConversationSearchHit {
    conversationId: string;
    title: string;
    updatedAtMs: number;
    snippet?: string;
}
export type OpenCodeConversationSearchResult = {
    ok: true;
    hits: OpenCodeConversationSearchHit[];
    truncated: boolean;
    partial: boolean;
    rebuilding: boolean;
} | {
    ok: false;
    error: string;
};
export declare class OpenCodeConversationSearchIndex {
    private readonly source;
    private readonly now;
    private readonly workspaces;
    constructor(source: OpenCodeConversationSearchSource, now?: () => number);
    search(input: {
        directory: string;
        activeSessionId?: string;
        query: string;
        limit?: number;
    }): Promise<OpenCodeConversationSearchResult>;
    invalidateSession(directory: string, sessionId: string): void;
    deleteSession(directory: string, sessionId: string): void;
    invalidateWorkspace(directory: string): void;
    clear(): void;
    private workspace;
    private startBuild;
    private build;
}