source: backend/web3-Ednevnik-Backend/src/main/java/com/nikola/web3ednevnikbackend/service/payment/BlockchainValidationService.java

package com.nikola.web3ednevnikbackend.service.payment;

import java.math.BigDecimal;

public interface BlockchainValidationService {
    boolean transactionExists(String txHash);

    boolean isTransactionSuccessful(String txHash);

    boolean amountMatches(
            BigDecimal expected,
            BigDecimal actual
    );
    boolean validateTransaction(
            String txHash,
            BigDecimal expectedAmountEth,
            String expectedSenderWallet
    );
    int getConfirmations(String txHash);
}