import { OCPP2_0_1 } from '@citrineos/base';
import type { IChargingProfileRepository, IDeviceModelRepository, ITransactionEventRepository } from '@citrineos/data';
import type { ILogObj } from 'tslog';
import { Logger } from 'tslog';
/**
 * Validate a language tag is an RFC-5646 tag, see: {@link https://tools.ietf.org/html/rfc5646},
 * example: US English is: "en-US"
 *
 * @param languageTag
 * @returns {boolean} true if the languageTag is an RFC-5646 tag
 */
export declare function validateLanguageTag(languageTag: string): boolean;
/**
 * Validate constraints of ChargingProfileType defined in OCPP 2.0.1
 *
 * @param chargingProfileType ChargingProfileType from the request
 * @param tenantId tenant id the profile belongs to
 * @param stationId station id
 * @param deviceModelRepository deviceModelRepository
 * @param chargingProfileRepository chargingProfileRepository
 * @param transactionEventRepository transactionEventRepository
 * @param logger logger
 * @param evseId evse id
 */
export declare function validateChargingProfileType(chargingProfileType: OCPP2_0_1.ChargingProfileType, tenantId: number, stationId: string, deviceModelRepository: IDeviceModelRepository, chargingProfileRepository: IChargingProfileRepository, transactionEventRepository: ITransactionEventRepository, logger: Logger<ILogObj>, evseId?: number | null): Promise<void>;
/**
 * Validate ISO15693 ID token format
 * ISO 15693 UID should be exactly 8 bytes (16 hex characters)
 */
export declare function validateISO15693IdToken(idToken: string): boolean;
/**
 * Validate ISO14443 ID token format
 * ISO 14443 UID should be 4 or 7 bytes (8 or 14 hex characters)
 */
export declare function validateISO14443IdToken(idToken: string): boolean;
/**
 * Validate identifier string format per OCPP 2.0.1. We expect this validation already from the JSON schema,
 * but we add this extra validation to be sure.
 * Only allows: a-z, A-Z, 0-9, *, -, _, =, :, +, |, @, .
 */
export declare function validateIdentifierStringIdToken(idToken: string): boolean;
/**
 * Validates an eMAID string according to eMI³ specifications
 * @param emaid - The eMAID string to validate
 * @returns errors - String array with errors, empty if valid
 */
export declare function validateEMAIDIdToken(emaid: string): string[];
/**
 * Validate NoAuthorization ID token (should be empty)
 */
export declare function validateNoAuthorizationIdToken(idToken: string): boolean;
/**
 * Generic validation result for all validators
 */
export interface ValidationResult {
    isValid: boolean;
    errorMessage?: string;
}
/**
 * ID token validator - routes to appropriate validator based on type
 * Returns validation result with detailed error message if invalid
 */
export declare function validateIdToken(idTokenType: OCPP2_0_1.IdTokenEnumType, idToken: string): ValidationResult;
/**
 * Validate ASCII content - only printable ASCII allowed (characters 32-126)
 * @param content Content string to validate
 * @returns {boolean} true if content contains only printable ASCII characters
 */
export declare function validateASCIIContent(content: string): boolean;
/**
 * Validate HTML content - checks for basic HTML structure validity
 * @param content Content string to validate
 * @returns {boolean} true if content appears to be valid HTML
 */
export declare function validateHTMLContent(content: string): boolean;
/**
 * Validate URI content - checks if content is a valid URI
 * @param content Content string to validate
 * @returns {boolean} true if content is a valid URI
 */
export declare function validateURIContent(content: string): boolean;
/**
 * Validate UTF-8 content - in JavaScript, strings are already UTF-16 encoded
 * This function checks for invalid surrogate pairs and control characters
 * @param content Content string to validate
 * @returns {boolean} true if content is valid UTF-8
 */
export declare function validateUTF8Content(content: string): boolean;
/**
 * Message content validator - routes to appropriate validator based on format
 * Returns validation result with detailed error message if invalid
 * @param format Message format type (ASCII, HTML, URI, UTF8)
 * @param content Message content to validate
 * @returns {ValidationResult} Validation result with error message if invalid
 */
export declare function validateMessageContent(format: OCPP2_0_1.MessageFormatEnumType, content: string): ValidationResult;
/**
 * Validate a complete MessageContentType object
 * Convenience function that validates both language tag (if present) and content against format
 * @param messageContent MessageContentType object to validate
 * @returns {ValidationResult} Validation result with error message if invalid
 */
export declare function validateMessageContentType(messageContent: OCPP2_0_1.MessageContentType): ValidationResult;
/**
 * Validate PEM-encoded Certificate Signing Request (CSR)
 * According to RFC 2986, CSR must be PEM-encoded with proper headers and valid base64 content
 * @param csr CSR string to validate
 * @returns {ValidationResult} Validation result with error message if invalid
 */
export declare function validatePEMEncodedCSR(csr: string): ValidationResult;