import { BigNumber, BigNumberish } from '@ethersproject/bignumber';
import { Provider } from '@ethersproject/providers';
import { PermitTransferFrom, PermitBatchTransferFrom } from '../signatureTransfer';
export interface NonceValidationResult {
    isUsed: boolean;
    isExpired: boolean;
    isValid: boolean;
}
export declare class SignatureProvider {
    private provider;
    private permit2Address;
    private permit2;
    constructor(provider: Provider, permit2Address: string);
    /**
     * Check if a nonce has been used for signature transfers
     * @param owner The owner address
     * @param nonce The nonce to check
     * @returns true if the nonce has been used, false otherwise
     */
    isNonceUsed(owner: string, nonce: BigNumberish): Promise<boolean>;
    /**
     * Check if a permit has expired based on its deadline
     * @param deadline The deadline timestamp
     * @returns true if the permit has expired, false otherwise
     */
    isExpired(deadline: BigNumberish): Promise<boolean>;
    /**
     * Check if a permit is valid (not expired and nonce not used)
     * @param permit The permit data to validate
     * @returns true if the permit is valid, false otherwise
     */
    isPermitValid(permit: PermitTransferFrom | PermitBatchTransferFrom): Promise<boolean>;
    /**
     * Get detailed validation results for a permit
     * @param permit The permit data to validate
     * @returns Object containing validation results
     */
    validatePermit(permit: PermitTransferFrom | PermitBatchTransferFrom): Promise<NonceValidationResult>;
    /**
     * Get the current nonce bitmap for an owner at a specific word position
     * @param owner The owner address
     * @param wordPos The word position in the bitmap
     * @returns The bitmap as a BigNumber
     */
    getNonceBitmap(owner: string, wordPos: BigNumberish): Promise<BigNumber>;
    /**
     * Check if a specific bit is set in the nonce bitmap
     * @param bitmap The bitmap to check
     * @param bitPos The bit position (0-255)
     * @returns true if the bit is set, false otherwise
     */
    static isBitSet(bitmap: BigNumber, bitPos: number): boolean;
    /**
     * Get the word position and bit position for a given nonce
     * @param nonce The nonce to analyze
     * @returns Object containing wordPos and bitPos
     */
    static getNoncePositions(nonce: BigNumberish): {
        wordPos: BigNumber;
        bitPos: number;
    };
    /**
     * Batch check multiple nonces for the same owner
     * @param owner The owner address
     * @param nonces Array of nonces to check
     * @returns Array of boolean results indicating if each nonce is used
     */
    batchCheckNonces(owner: string, nonces: BigNumberish[]): Promise<boolean[]>;
    /**
     * Get the current block timestamp
     * @returns Current block timestamp
     */
    getCurrentTimestamp(): Promise<number>;
}