/**
 * Persistence for project tasks. Keeps CodeIndexDB from owning task CRUD logic.
 */
/** Minimal collection interface supported by the SQLite adapter. */
interface Collection<T> {
    find(query?: Record<string, unknown>): T[];
    findOne(query: Record<string, unknown>): T | null;
    insert(doc: T): T;
    update(doc: T): void;
    remove(doc: T): void;
}
import type { CompleteProjectTaskResult, CreateProjectTaskInput, ListProjectTasksOptions, ListProjectTasksTreeNode, ProjectTaskDeleteMode, ProjectTask, ProjectTaskDocument } from '../types/projectTask.js';
export declare class ProjectTaskRepository {
    private readonly getTasksCollection;
    private readonly persist;
    constructor(getTasksCollection: () => Collection<ProjectTaskDocument>, persist: () => void);
    private static isDone;
    private static isClosed;
    private getTaskById;
    private getDirectChildren;
    private getDescendants;
    private sortRows;
    private getOpenDependencyTaskIds;
    private ensureDependencyCycleFree;
    private normalizeAndValidateBlockedBy;
    private assertParentReferenceValid;
    private assertDoneAllowed;
    private assertNoOpenDependencies;
    create(input: CreateProjectTaskInput): ProjectTask;
    getById(taskId: string): ProjectTask | null;
    /**
     * Find non-closed tasks matching a violation fingerprint.
     * Returns an empty array if fingerprint is null/undefined or no match is found.
     */
    findOpenByFingerprint(fingerprint: string | null | undefined): ProjectTaskDocument[];
    list(projectPath: string, options?: ListProjectTasksOptions): ProjectTask[];
    listTree(projectPath: string, options?: Omit<ListProjectTasksOptions, 'parentTaskId' | 'hasChildren'>): ListProjectTasksTreeNode[];
    listActionable(projectPath: string, options?: Omit<ListProjectTasksOptions, 'actionableOnly'>): ProjectTask[];
    complete(taskId: string): CompleteProjectTaskResult | null;
    update(taskId: string, patch: unknown): ProjectTask | null;
    private removeBlockedByReferences;
    delete(taskId: string, mode?: ProjectTaskDeleteMode): boolean;
}
export {};
//# sourceMappingURL=ProjectTaskRepository.d.ts.map