import { IClassNameValidator } from '../core/interfaces';
import { Logger } from '../utils/Logger';
/**
 * Class validator for Tailwind CSS v4
 * This loads the design system once and caches it for validation
 * Implements IClassNameValidator for dependency inversion
 */
export declare class TailwindValidator implements IClassNameValidator {
    private classSet;
    private designSystem;
    private cssFilePath;
    private logger;
    private validationCache;
    private allowedClasses;
    constructor(cssFilePath: string, logger: Logger);
    /**
     * Load the design system and cache the class list
     */
    initialize(): Promise<void>;
    isInitialized(): boolean;
    /**
     * Set custom allowed classes from configuration
     */
    setAllowedClasses(allowedClasses: string[]): void;
    /**
     * Check if a class name is valid
     * This handles both static classes and arbitrary values (e.g., w-[100px])
     * PERFORMANCE OPTIMIZED: Reduced logging, faster cache checks
     */
    isValidClass(className: string): boolean;
    /**
     * Validate multiple class names and return invalid ones
     * PERFORMANCE OPTIMIZED: Batch validation for arbitrary values
     */
    getInvalidClasses(classNames: string[]): string[];
    /**
     * Reload the design system (useful when CSS file changes)
     */
    reload(): Promise<void>;
    /**
     * Get cache statistics (for performance monitoring)
     */
    getCacheStats(): {
        size: number;
        maxSize: number;
    };
    /**
     * Get similar class names for a given invalid class (for "Did you mean?" suggestions)
     * Uses Levenshtein distance to find closest matches
     */
    getSimilarClasses(invalidClass: string, maxSuggestions?: number): string[];
    /**
     * Calculate Levenshtein distance between two strings
     * This measures the minimum number of single-character edits needed to transform one string into another
     */
    private levenshteinDistance;
    /**
     * Get all valid class names (for completions or other purposes)
     */
    getAllClasses(): string[];
}
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