// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

/**
 * Before running this C++ code example, set up your development environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/getting-started.html
 *
 * For information on the structure of the code examples and how to build and run the examples, see
 * https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/getting-started-code-examples.html.
 *
 **/

#include <aws/core/Aws.h>
#include <aws/iot/IoTClient.h>
#include <aws/iot/model/ListTopicRulesRequest.h>
#include <iostream>
#include "iot_samples.h"

// snippet-start:[cpp.example_code.iot.ListTopicRules]
//! Lists the AWS IoT topic rules.
/*!
  \param clientConfiguration: AWS client configuration.
  \return bool: Function succeeded.
 */
bool AwsDoc::IoT::listTopicRules(
        const Aws::Client::ClientConfiguration &clientConfiguration) {
    Aws::IoT::IoTClient iotClient(clientConfiguration);
    Aws::IoT::Model::ListTopicRulesRequest request;

    Aws::Vector<Aws::IoT::Model::TopicRuleListItem> allRules;
    Aws::String nextToken; // Used for pagination.
    do {
        if (!nextToken.empty()) {
            request.SetNextToken(nextToken);
        }

        Aws::IoT::Model::ListTopicRulesOutcome outcome = iotClient.ListTopicRules(
                request);

        if (outcome.IsSuccess()) {
            const Aws::IoT::Model::ListTopicRulesResult &result = outcome.GetResult();
            allRules.insert(allRules.end(),
                            result.GetRules().cbegin(),
                            result.GetRules().cend());

            nextToken = result.GetNextToken();
        }
        else {
            std::cerr << "ListTopicRules error: " <<
                      outcome.GetError().GetMessage() << std::endl;
            return false;
        }

    } while (!nextToken.empty());

    std::cout << "ListTopicRules: " << allRules.size() << " rule(s) found."
              << std::endl;
    for (auto &rule: allRules) {
        std::cout << "  Rule name: " << rule.GetRuleName() << ", rule ARN: "
                  << rule.GetRuleArn() << "." << std::endl;
    }

    return true;
}
// snippet-end:[cpp.example_code.iot.ListTopicRules]
/*
 *
 *  main function
 *
 *  Usage: 'run_list_topic_rules'
 *
 */

#ifndef EXCLUDE_ACTION_MAIN

int main(int argc, char **argv) {
    Aws::SDKOptions options;

    Aws::InitAPI(options);
    {
        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region (overrides config file).
        // clientConfig.region = "us-east-1";

        AwsDoc::IoT::listTopicRules(clientConfig);
    }
    Aws::ShutdownAPI(options);
    return 0;
}

#endif // EXCLUDE_ACTION_MAIN