/**
 * Filter evaluation functions for tasks
 */
import type { Task } from 'node-vikunja';
import type { FilterCondition, FilterGroup, FilterExpression } from '../../types/filters';
/**
 * Evaluates a filter condition against a task
 */
export declare function evaluateCondition(task: Task, condition: FilterCondition): boolean;
/**
 * Evaluates comparison operators
 */
export declare function evaluateComparison(actual: unknown, operator: string, expected: unknown): boolean;
/**
 * Evaluates date comparisons (supports relative dates like "now+7d")
 */
export declare function evaluateDateComparison(actual: string, operator: string, expected: string): boolean;
/**
 * Parses relative date strings (e.g., "now+7d", "now-1w")
 */
export declare function parseRelativeDate(dateStr: string): Date | null;
/**
 * Evaluates string comparisons
 */
export declare function evaluateStringComparison(actual: string, operator: string, expected: string): boolean;
/**
 * Evaluates array comparisons (for assignees and labels)
 */
export declare function evaluateArrayComparison(actual: number[], operator: string, expected: number[]): boolean;
/**
 * Evaluates a filter group against a task
 */
export declare function evaluateGroup(task: Task, group: FilterGroup): boolean;
/**
 * Applies a filter expression to a list of tasks
 */
export declare function applyFilter(tasks: Task[], expression: FilterExpression): Task[];
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