import { type RegisteredChannel, type QueuedMessage, type ThinkingLevel } from './types.js';
export type ScheduledTaskType = 'once' | 'recurring';
export interface ScheduledTaskRow {
    id: number;
    name: string;
    type: ScheduledTaskType;
    schedule: string;
    channel_jid: string;
    prompt: string;
    enabled: number;
    last_run_at: string | null;
    next_run_at: string | null;
    created_at: string;
    created_by: string;
}
export declare function initDb(): void;
export declare function registerChannel(ch: RegisteredChannel): void;
export declare function unregisterChannel(jid: string): boolean;
export declare function getChannel(jid: string): RegisteredChannel | undefined;
export declare function getAllChannels(): RegisteredChannel[];
export declare function createDmChannel(jid: string, userId: string, displayName: string): RegisteredChannel;
export declare function setChannelModelOverride(jid: string, modelOverride: string): boolean;
export declare function clearChannelModelOverride(jid: string): boolean;
export declare function setChannelThinkingOverride(jid: string, thinkingOverride: ThinkingLevel): boolean;
export declare function clearChannelThinkingOverride(jid: string): boolean;
export declare function enqueueMessage(msg: {
    channelJid: string;
    sender: string;
    senderName: string;
    content: string;
    timestamp: string;
    attachments?: string | null;
}): void;
export declare function claimNextMessage(channelJid: string): QueuedMessage | undefined;
export declare function markMessageDone(rowid: number): void;
export declare function markMessageFailed(rowid: number): void;
export declare function clearPendingMessages(channelJid: string): number;
export declare function recoverStuckMessages(): number;
/** Get channels that have pending messages */
export declare function channelsWithPending(): string[];
export declare function addScheduledTask(task: {
    name: string;
    type: ScheduledTaskType;
    schedule: string;
    channelJid: string;
    prompt: string;
    createdBy?: string;
    nextRunAt: string;
}): number;
export declare function removeScheduledTask(id: number): boolean;
export declare function enableScheduledTask(id: number): boolean;
export declare function disableScheduledTask(id: number): boolean;
export declare function listScheduledTasks(): ScheduledTaskRow[];
export declare function getDueScheduledTasks(): ScheduledTaskRow[];
export declare function updateTaskAfterRun(id: number, lastRunAt: string, nextRunAt: string | null): void;
export declare function enqueueScheduledTask(taskId: number, msg: {
    channelJid: string;
    sender: string;
    senderName: string;
    content: string;
    timestamp: string;
}, lastRunAt: string, nextRunAt: string | null): void;
export declare function logMessage(channelJid: string, role: string, content: string): void;
export declare function closeDb(): void;