/**
 * License Validation Service
 * Handles license validation for the jaak-stamps webcomponent
 */
export type Environment = 'dev' | 'qa' | 'sandbox' | 'prod';
export interface LicenseValidationRequest {
    license: string;
    origin: string;
    app_id?: string;
    product?: string;
    product_version?: string;
    metadata?: {
        [key: string]: any;
    };
}
export interface LicenseValidationResponse {
    access_token: string;
    token_type: string;
    expires_at: string;
    session_id: string;
    jti: string;
    step: number;
    license: string;
    traceId?: string;
}
export interface LicenseValidationError {
    error: string;
    error_description?: string;
    status_code?: number;
}
export declare class LicenseValidationService {
    private apiEndpoint;
    private baseUrl;
    private static readonly ENVIRONMENT_URLS;
    constructor(environment?: Environment);
    /**
     * Validate license with the API
     * @param license License key to validate
     * @param traceId Optional trace ID from W3C Trace Context
     * @param appId Optional application ID
     * @param metadata Optional additional metadata
     * @returns Promise<LicenseValidationResponse>
     */
    validateLicense(license: string, traceId?: string, appId?: string): Promise<LicenseValidationResponse>;
    /**
     * Generate a random trace ID for W3C Trace Context (32 hex characters)
     */
    private generateTraceId;
    /**
     * Generate a random span ID for W3C Trace Context (16 hex characters)
     */
    private generateSpanId;
    /**
     * Extract trace ID from license field
     * License format: "L<32-hex-chars>"
     * Example: "Ld79223833a2fd91971e4c14a33298904" -> "d79223833a2fd91971e4c14a33298904"
     */
    static extractTraceIdFromLicense(license: string): string | null;
}