/**
 * 任务系统核心模块
 * 负责任务图、状态流转和阶段进度
 */
import { Phase, Task, TaskStatus } from '../types/index.js';
export declare class TaskManager {
    private readonly tasks;
    private readonly phases;
    private readonly basePath;
    constructor(basePath?: string);
    load(): Promise<void>;
    save(): Promise<void>;
    createTask(taskData: Omit<Task, 'id' | 'created_at' | 'updated_at'>): Task;
    createPhase(phaseData: Omit<Phase, 'created_at' | 'updated_at' | 'progress'>): Phase;
    getTask(id: string): Task | undefined;
    getPhase(id: string): Phase | undefined;
    getAllTasks(): Task[];
    getTasksByStatus(status: TaskStatus): Task[];
    getReadyTasks(options?: {
        limit?: number;
    }): Task[];
    getTasksByPhase(phaseId: string): Task[];
    getAllPhases(): Phase[];
    claimTask(taskId: string, workerId: string): Promise<Task | undefined>;
    updateTaskStatus(taskId: string, status: TaskStatus, metadata?: Record<string, any>): Promise<Task | undefined>;
    checkDependencies(taskId: string): boolean;
    checkPhaseDependencies(completedPhaseId: string): Promise<void>;
    updatePhaseProgress(phaseId: string): Promise<void>;
    isPhaseReady(phaseId: string): boolean;
    getStats(): {
        total: number;
        pending: number;
        ready: number;
        inProgress: number;
        completed: number;
        failed: number;
        blocked: number;
    };
    private checkDependentTasks;
    private generateTaskId;
}
export declare const taskManager: TaskManager;
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