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package net.robotmedia.billing.security;

import net.robotmedia.billing.model.Transaction;
import org.solovyev.common.security.Cipherer;
import org.solovyev.common.security.CiphererException;

import javax.annotation.Nonnull;
import javax.crypto.SecretKey;

/**
 * User: serso
 * Date: 2/10/13
 * Time: 6:55 PM
 */
class TransactionObfuscator implements Cipherer {

	@Nonnull
	private Cipherer stringCipherer;

	private TransactionObfuscator(@Nonnull Cipherer stringCipherer) {
		this.stringCipherer = stringCipherer;
	}

	@Nonnull
	static Cipherer newInstance(@Nonnull Cipherer stringCipherer) {
		return new TransactionObfuscator(stringCipherer);
	}

	@Nonnull
	@Override
	public Transaction encrypt(@Nonnull SecretKey secret, @Nonnull Transaction decrypted) throws CiphererException {
		decrypted.orderId = stringCipherer.encrypt(secret, decrypted.orderId);
		decrypted.productId = stringCipherer.encrypt(secret, decrypted.productId);
		decrypted.developerPayload = stringCipherer.encrypt(secret, decrypted.developerPayload);
		return decrypted;
	}

	@Nonnull
	@Override
	public Transaction decrypt(@Nonnull SecretKey secret, @Nonnull Transaction encrypted) throws CiphererException {
		encrypted.orderId = stringCipherer.decrypt(secret, encrypted.orderId);
		encrypted.productId = stringCipherer.decrypt(secret, encrypted.productId);
		encrypted.developerPayload = stringCipherer.decrypt(secret, encrypted.developerPayload);
		return encrypted;
	}
}