import { OnModuleInit, OnModuleDestroy } from '@nestjs/common';
import { DatabaseService } from '../database/database.service.js';
import { AgentsService } from '../agents/agents.service.js';
import { ConfigService } from '../config/config.service.js';
import { UsageService } from '../usage/usage.service.js';
export type ScheduleType = 'once' | 'cron';
export interface RepeatRule {
    type: 'daily' | 'weekdays' | 'weekends' | 'weekly' | 'monthly';
    time: string;
    days?: number[];
    dayOfMonth?: number;
}
export interface ScheduledTask {
    id: string;
    workspace: string;
    message: string;
    scheduleType: ScheduleType;
    runAt?: number;
    cronExpr?: string;
    repeatRuleJson?: string;
    enabled: boolean;
    lastRunAt?: number;
    createdAt: number;
    updatedAt: number;
}
export type TaskExecutionStatus = 'success' | 'failed';
export interface TaskExecution {
    id: string;
    taskId: string;
    ranAt: number;
    status: TaskExecutionStatus;
    sessionId?: string;
    userMessage: string;
    assistantContent?: string;
    errorMessage?: string;
    createdAt: number;
}
/** 将 repeatRule 转为 cron 表达式 */
export declare function repeatRuleToCron(rule: RepeatRule): string;
export declare class TasksService implements OnModuleInit, OnModuleDestroy {
    private readonly db;
    private readonly agentsService;
    private readonly configService;
    private readonly usageService;
    private tickTimer;
    private readonly TICK_MS;
    /** 正在执行中的 task id，避免同一任务在两次 tick 中并发执行 */
    private runningTaskIds;
    constructor(db: DatabaseService, agentsService: AgentsService, configService: ConfigService, usageService: UsageService);
    onModuleInit(): void;
    onModuleDestroy(): void;
    private rowToTask;
    list(): ScheduledTask[];
    get(id: string): ScheduledTask | null;
    private rowToExecution;
    addExecution(params: {
        taskId: string;
        ranAt: number;
        status: TaskExecutionStatus;
        sessionId?: string;
        userMessage: string;
        assistantContent?: string;
        errorMessage?: string;
    }): TaskExecution;
    listExecutions(taskId: string): TaskExecution[];
    getExecution(id: string): TaskExecution | null;
    /** 删除指定任务的全部执行记录，返回删除条数 */
    deleteExecutionsByTaskId(taskId: string): number;
    create(params: {
        workspace: string;
        message: string;
        scheduleType: ScheduleType;
        runAt?: number;
        cronExpr?: string;
        repeatRule?: RepeatRule;
    }): ScheduledTask;
    update(id: string, updates: Partial<Pick<ScheduledTask, 'message' | 'enabled' | 'scheduleType' | 'runAt' | 'cronExpr' | 'repeatRuleJson'>>): ScheduledTask | null;
    delete(id: string): boolean;
    /** 获取当前应执行的任务 */
    getDueTasks(at: Date): ScheduledTask[];
    /** 仅更新 last_run_at，不关单次任务。用于「开始执行」时立即占位，避免下一分钟 tick 重复触发同一任务。 */
    markRunStarted(id: string): void;
    markRan(id: string): void;
    /** 每分钟触发：拉取到点任务，创建会话、写用户消息、请求 Gateway 执行，写执行记录，再 markRan */
    private tick;
}