import type { ActorRef, Task, TaskAcceptancePolicy, TaskContract, TaskPhase, TaskPriority, TaskResolution } from '@xopcai/gateway-contract';
export type TaskExecutionSource = 'chat' | 'cli' | 'cron' | 'workflow' | 'channel' | 'api';
export type TaskUiLocale = 'en' | 'zh';
export type TaskAggregate = Task;
export interface TaskCreateInput {
    id?: string;
    idempotencyKey?: string;
    title: string;
    body?: string;
    phase?: Extract<TaskPhase, 'backlog' | 'ready'>;
    projectId?: string;
    milestoneId?: string;
    parentTaskId?: string;
    priority?: TaskPriority;
    dueAt?: number;
    ownerId?: string;
    delegateAgentId?: string;
    source?: TaskExecutionSource;
    locale?: TaskUiLocale;
    objective: string;
    expectedOutputs?: string[];
    acceptanceCriteria?: string[];
    constraints?: string[];
    approvalRequired?: string[];
    assumptions?: string[];
    risks?: string[];
    acceptancePolicy?: TaskAcceptancePolicy;
    outputDestinations?: Array<Record<string, unknown>>;
    createdBy?: ActorRef;
    now?: number;
}
export declare class TaskRepository {
    create(input: TaskCreateInput): TaskAggregate;
    get(id: string): TaskAggregate | undefined;
    require(id: string): TaskAggregate;
    getByIdempotencyKey(key: string): TaskAggregate | undefined;
    getBySession(sessionKey: string): TaskAggregate | undefined;
    list(input?: {
        phase?: TaskPhase;
        projectId?: string;
        limit?: number;
    }): TaskAggregate[];
    listByProject(projectId: string, limit?: number): TaskAggregate[];
    getContract(taskId: string, version?: number): TaskContract | undefined;
    update(taskId: string, patch: {
        expectedVersion: number;
        title?: string;
        body?: string | null;
        projectId?: string | null;
        milestoneId?: string | null;
        parentTaskId?: string | null;
        priority?: TaskPriority;
        dueAt?: number | null;
        ownerId?: string | null;
        delegateAgentId?: string | null;
        now?: number;
    }): TaskAggregate | undefined;
    setLifecycle(input: {
        taskId: string;
        expectedVersion: number;
        phase: TaskPhase;
        resolution?: TaskResolution;
        now?: number;
    }): TaskAggregate | undefined;
    reviseContract(input: {
        taskId: string;
        objective: string;
        expectedOutputs: string[];
        acceptanceCriteria: string[];
        constraints: string[];
        approvalRequired: string[];
        assumptions: string[];
        risks: string[];
        acceptancePolicy: TaskAcceptancePolicy;
        outputDestinations: Array<Record<string, unknown>>;
        createdBy: ActorRef;
        expectedVersion: number;
        now?: number;
    }): TaskAggregate | undefined;
    delete(taskId: string): boolean;
    private insertContract;
}