import type Database from "better-sqlite3";
import { type ChatAccessContext } from "../core/access.js";
export interface MessageRow {
    id: number;
    chat_id: string;
    sender_id: string;
    role: string;
    content_text: string | null;
    content_type: string;
    thread_id: string | null;
    created_at: string;
    sender_name: string | null;
}
export interface ContinuationMessageRow {
    sender_id: string | null;
    role: string;
    sender_name: string | null;
    content_text: string;
}
export interface SessionMessageRow {
    id: number;
    role: "user" | "assistant";
    content_text: string;
}
export interface MessageFilter {
    since?: string;
    before?: string;
    role?: string;
    userId?: string;
    contentType?: string;
    threadId?: string;
    allThreads?: boolean;
}
export declare function listMessages(db: Database.Database, options: ChatAccessContext & MessageFilter & {
    targetChatId: string;
    limit: number;
    offset?: number;
}): MessageRow[];
export declare function searchMessages(db: Database.Database, options: ChatAccessContext & MessageFilter & {
    query: string;
    searchAll?: boolean;
    targetChatId?: string;
    targetChatType?: "p2p" | "group";
    limit: number;
}): MessageRow[];
export declare function getMessageForAccess(db: Database.Database, id: number, ctx: ChatAccessContext): MessageRow | undefined;
export declare function getMessageContextRows(db: Database.Database, chatId: string, messageId: number, contextCount: number): MessageRow[];
export declare function listContinuationMessages(db: Database.Database, options: {
    chatId: string;
    threadId?: string;
    mainThreadOnly?: boolean;
    beforeMsgId?: number;
    limit: number;
}): ContinuationMessageRow[];
export declare function listSessionMessages(db: Database.Database, sessionId: string): SessionMessageRow[];