/*
 * 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.pulsar.tests.integration.io.sources.debezium;

import java.util.Map;
import lombok.Getter;
import lombok.extern.slf4j.Slf4j;
import org.apache.pulsar.tests.integration.containers.DebeziumMongoDbContainer;
import org.apache.pulsar.tests.integration.containers.PulsarContainer;
import org.apache.pulsar.tests.integration.docker.ContainerExecResult;
import org.apache.pulsar.tests.integration.io.sources.SourceTester;
import org.apache.pulsar.tests.integration.topologies.PulsarCluster;

@Slf4j
public class DebeziumMongoDbSourceTester extends SourceTester<DebeziumMongoDbContainer> {

    private static final String NAME = "debezium-mongodb";

    private final String pulsarServiceUrl;

    @Getter
    private DebeziumMongoDbContainer debeziumMongoDbContainer;

    private final PulsarCluster pulsarCluster;
    public DebeziumMongoDbSourceTester(PulsarCluster cluster) {
        super(NAME);
        this.pulsarCluster = cluster;
        pulsarServiceUrl = "pulsar://pulsar-proxy:" + PulsarContainer.BROKER_PORT;

        sourceConfig.put("mongodb.connection.string",
                "mongodb://debezium:dbz@" + DebeziumMongoDbContainer.NAME + ":27017/admin?replicaSet=rs0");
        sourceConfig.put("mongodb.user", "debezium");
        sourceConfig.put("mongodb.password", "dbz");
        sourceConfig.put("mongodb.task.id", "1");
        sourceConfig.put("topic.prefix", "dbserver1");
        sourceConfig.put("database.include.list", "inventory");
        sourceConfig.put("schema.history.internal.pulsar.service.url", pulsarServiceUrl);
        sourceConfig.put("topic.namespace", "debezium/mongodb");
        sourceConfig.put("capture.mode", "change_streams_update_full");
    }

    @Override
    public void setServiceContainer(DebeziumMongoDbContainer container) {
        log.info("start debezium mongodb server container.");
        debeziumMongoDbContainer = container;
        pulsarCluster.startService(DebeziumMongoDbContainer.NAME, debeziumMongoDbContainer);
    }

    @Override
    public void prepareSource() throws Exception {
        waitForMongoDbReady();
        this.debeziumMongoDbContainer.execCmd("bash", "-c", "/usr/local/bin/init-inventory.sh");
        waitForReplicaSetPrimary();
    }

    private void waitForMongoDbReady() throws Exception {
        log.info("Waiting for MongoDB to be ready...");
        for (int i = 0; i < 50; i++) {
            try {
                ContainerExecResult result = this.debeziumMongoDbContainer.execCmd(
                        "/bin/bash", "-c",
                        "mongosh --quiet --eval \"db.adminCommand('ping').ok\" localhost:27017 | grep 1");
                if (result.getExitCode() == 0) {
                    log.info("MongoDB ready after {} seconds", i);
                    return;
                }
            } catch (Exception e) {
                log.debug("MongoDB readiness check attempt {} failed: {}", i + 1, e.getMessage());
            }
            Thread.sleep(1000);
        }
        throw new RuntimeException("MongoDB not ready after 50 seconds");
    }

    private void waitForReplicaSetPrimary() throws Exception {
        log.info("Waiting for MongoDB replica set primary to be ready...");
        for (int i = 0; i < 60; i++) {
            try {
                ContainerExecResult result = this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                        "mongosh --quiet --eval 'db.hello().isWritablePrimary' localhost:27017");
                if (result.getStdout().trim().contains("true")) {
                    log.info("MongoDB replica set primary ready after {} seconds", i);
                    return;
                }
            } catch (Exception e) {
                log.debug("MongoDB primary check attempt {} failed: {}", i + 1, e.getMessage());
            }
            Thread.sleep(1000);
        }
        throw new RuntimeException("MongoDB replica set primary not ready after 60 seconds");
    }

    @Override
    public void prepareInsertEvent() throws Exception {
        this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                "mongosh -u debezium -p dbz --authenticationDatabase admin localhost:27017/inventory "
                        + "--eval 'db.products.find()'");
        this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                "mongosh -u debezium -p dbz --authenticationDatabase admin localhost:27017/inventory "
                        + "--eval 'db.products.insert({ "
                        + "_id : NumberLong(\"110\"),"
                        + "name : \"test-debezium\","
                        + "description: \"24 inch spare tire\","
                        + "weight : 22.2,"
                        + "quantity : NumberInt(\"5\")})'");
    }

    @Override
    public void prepareDeleteEvent() throws Exception {
        this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                "mongosh -u debezium -p dbz --authenticationDatabase admin localhost:27017/inventory "
                        + "--eval 'db.products.find()'");
        this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                "mongosh -u debezium -p dbz --authenticationDatabase admin localhost:27017/inventory "
                        + "--eval 'db.products.deleteOne({name : \"test-debezium-update\"})'");
    }

    @Override
    public void prepareUpdateEvent() throws Exception {
        this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                "mongosh -u debezium -p dbz --authenticationDatabase admin localhost:27017/inventory "
                        + "--eval 'db.products.find()'");
        this.debeziumMongoDbContainer.execCmd("/bin/bash", "-c",
                "mongosh -u debezium -p dbz --authenticationDatabase admin localhost:27017/inventory "
                        + "--eval 'db.products.update({"
                        + "_id : 110},"
                        + "{$set:{name:\"test-debezium-update\", description: \"this is update description\"}})'");
    }

    @Override
    public Map<String, String> produceSourceMessages(int numMessages) throws Exception {
        log.info("debezium mongodb server already contains preconfigured data.");
        return null;
    }

    @Override
    public String valueContains() {
        return "dbserver1.inventory.products.Envelope";
    }

    @Override
    public void close() {
        if (debeziumMongoDbContainer != null) {
            PulsarCluster.stopService(DebeziumMongoDbContainer.NAME, debeziumMongoDbContainer);
            debeziumMongoDbContainer = null;
        }
    }
}
