import { Dependency, DependencyType, DependencyGraph } from '../../types/dependency.js';
import { FileOperationResult } from '../../utils/file-utils.js';
export interface CreateDependencyParams {
    fromTaskId: string;
    toTaskId: string;
    type: DependencyType;
    description: string;
    critical?: boolean;
}
export interface UpdateDependencyParams {
    type?: DependencyType;
    description?: string;
    critical?: boolean;
}
export interface DependencyValidationResult {
    valid: boolean;
    errors: string[];
    warnings: string[];
}
export declare class DependencyOperations {
    private static instance;
    private validator;
    private constructor();
    static getInstance(): DependencyOperations;
    static resetInstance(): void;
    createDependency(params: CreateDependencyParams, createdBy?: string): Promise<FileOperationResult<Dependency>>;
    getDependency(dependencyId: string): Promise<FileOperationResult<Dependency>>;
    updateDependency(dependencyId: string, params: UpdateDependencyParams, updatedBy?: string): Promise<FileOperationResult<Dependency>>;
    deleteDependency(dependencyId: string, deletedBy?: string): Promise<FileOperationResult<void>>;
    getDependenciesForTask(taskId: string): Promise<FileOperationResult<Dependency[]>>;
    getDependentsForTask(taskId: string): Promise<FileOperationResult<Dependency[]>>;
    generateDependencyGraph(projectId: string): Promise<FileOperationResult<DependencyGraph>>;
    validateProjectDependencies(projectId: string): Promise<FileOperationResult<Record<string, unknown>>>;
    loadDependencyGraph(projectId: string): Promise<FileOperationResult<DependencyGraph>>;
    private checkCircularDependency;
    private updateTaskDependencyLists;
    private removeFromTaskDependencyLists;
    private calculateExecutionOrder;
    private calculateCriticalPath;
    private validateCreateParams;
    private validateUpdateParams;
}
export declare function getDependencyOperations(): DependencyOperations;
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