import { ethers } from 'ethers';
import { ContentConfig } from '../types';
/**
 * Content utility functions for managing and validating content configurations
 */
export declare class ContentUtils {
    /**
     * Validate content ID format
     * @param contentId Content ID to validate
     * @returns True if valid
     */
    static isValidContentId(contentId: number): boolean;
    /**
     * Format price for display
     * @param price Price in wei
     * @returns Formatted price string
     */
    static formatPrice(price: ethers.BigNumber): string;
    /**
     * Parse price from string to BigNumber
     * @param priceStr Price string in ETH
     * @returns Price in wei
     */
    static parsePrice(priceStr: string): ethers.BigNumber;
    /**
     * Validate content configuration
     * @param config Content configuration to validate
     * @returns Validation result
     */
    static validateContentConfig(config: ContentConfig): {
        isValid: boolean;
        errors: string[];
    };
    /**
     * Compare two content configurations and return differences
     * @param config1 First configuration
     * @param config2 Second configuration
     * @returns Object containing changes
     */
    static compareConfigs(config1: ContentConfig, config2: ContentConfig): any;
    /**
     * Generate content summary string
     * @param config Content configuration
     * @returns Summary string
     */
    static generateContentSummary(config: ContentConfig): string;
    /**
     * Sort content configurations by specified field
     * @param configs Array of configurations
     * @param sortBy Field to sort by
     * @param ascending Sort direction
     * @returns Sorted array
     */
    static sortConfigs(configs: ContentConfig[], sortBy: 'contentId' | 'nativePrice' | 'viewCount' | 'isActive', ascending?: boolean): ContentConfig[];
    /**
     * Filter content configurations by criteria
     * @param configs Array of configurations
     * @param filters Filter criteria
     * @returns Filtered array
     */
    static filterConfigs(configs: ContentConfig[], filters: {
        isActive?: boolean;
        minPrice?: ethers.BigNumber;
        maxPrice?: ethers.BigNumber;
        minViewCount?: number;
        maxViewCount?: number;
    }): ContentConfig[];
    /**
     * Calculate total value of content configurations
     * @param configs Array of configurations
     * @returns Total value in wei
     */
    static calculateTotalValue(configs: ContentConfig[]): ethers.BigNumber;
    /**
     * Get configuration statistics
     * @param configs Array of configurations
     * @returns Statistics object
     */
    static getConfigStats(configs: ContentConfig[]): {
        total: number;
        active: number;
        inactive: number;
        totalValue: ethers.BigNumber;
        averagePrice: ethers.BigNumber;
        averageViewCount: number;
    };
    /**
     * Convert configuration to display format
     * @param config Content configuration
     * @returns Display-friendly object
     */
    static toDisplayFormat(config: ContentConfig): any;
}
//# sourceMappingURL=content-utils.d.ts.map