/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.rocketmq.example.transaction;

import org.apache.rocketmq.client.producer.LocalTransactionState;
import org.apache.rocketmq.client.producer.TransactionCheckListener;
import org.apache.rocketmq.common.message.MessageExt;

import java.util.concurrent.atomic.AtomicInteger;

import static org.apache.rocketmq.example.transaction.TransactionProducer.statsMap;

public class TransactionCheckListenerImpl implements TransactionCheckListener {
    private AtomicInteger transactionIndex = new AtomicInteger(0);

    @Override
    public LocalTransactionState checkLocalTransactionState(MessageExt msg) {
        try {
            String val = new String(msg.getBody(), "UTF-8");
            System.out.printf("server checking TrMsg " + val + "%n");
            if (Integer.parseInt(val) < 0) {
                return LocalTransactionState.UNKNOW;
            }
            if (statsMap.get(Integer.parseInt(val)) != null && statsMap.get(Integer.parseInt(val))) {
                return LocalTransactionState.COMMIT_MESSAGE;
            } else {
                System.out.printf("server checking TrMsg " + val + ",ROLLBACK");
                return LocalTransactionState.ROLLBACK_MESSAGE;
            }
        } catch (Exception e) {
            e.printStackTrace();
            return LocalTransactionState.ROLLBACK_MESSAGE;
        }
//        int value = transactionIndex.getAndIncrement();
//        if ((value % 6) == 0) {
//            throw new RuntimeException("Could not find db");
//        } else if ((value % 5) == 0) {
//            return LocalTransactionState.ROLLBACK_MESSAGE;
//        } else if ((value % 4) == 0) {
//            return LocalTransactionState.COMMIT_MESSAGE;
//        }

        //return LocalTransactionState.COMMIT_MESSAGE;
    }
}