mvsim-cli-node.cpp

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/*+-------------------------------------------------------------------------+
  |                       MultiVehicle simulator (libmvsim)                 |
  |                                                                         |
  | Copyright (C) 2014-2020  Jose Luis Blanco Claraco                       |
  | Copyright (C) 2017  Borys Tymchenko (Odessa Polytechnic University)     |
  | Distributed under 3-clause BSD License                                  |
  |   See COPYING                                                           |
  +-------------------------------------------------------------------------+ */

#include <mvsim/Comms/Client.h>

#include "mvsim-cli.h"

static int printCommandsNode(bool showErrorMsg);
static int nodeList();

static const std::map<std::string, cmd_t> cliNodeCommands = {
        {"list", cmd_t(&nodeList)},
};

int commandNode()
{
        const auto& lstCmds = argCmd.getValue();
        if (argHelp.isSet()) return printCommandsNode(false);
        if (lstCmds.size() != 2) return printCommandsNode(true);

        // Take second unlabeled argument:
        const std::string subcommand = lstCmds.at(1);
        auto itSubcmd = cliNodeCommands.find(subcommand);

        if (itSubcmd == cliNodeCommands.end()) return printCommandsNode(true);

        // Execute command:
        return (itSubcmd->second)();
}

int nodeList()
{
        mvsim::Client client;

        client.setMinLoggingLevel(
                mrpt::typemeta::TEnumType<mrpt::system::VerbosityLevel>::name2value(
                        argVerbosity.getValue()));

        std::cout << "# Connecting to server...\n";
        client.connect();
        std::cout << "# Connected.\n";
        std::cout << "# Querying list of nodes to server...\n";
        const auto lstNodes = client.requestListOfNodes();

        std::cout << "# Done. Found " << lstNodes.size() << " nodes:\n";

        for (const auto& n : lstNodes)
        {
                std::cout << "- name: \"" << n.name << "\"\n";
        }

        return 0;
}

int printCommandsNode(bool showErrorMsg)
{
        if (showErrorMsg)
        {
                mrpt::system::setConsoleColor(mrpt::system::CONCOL_RED);
                std::cerr << "Error: missing or unknown subcommand.\n";
                mrpt::system::setConsoleColor(mrpt::system::CONCOL_NORMAL);
        }

        fprintf(
                stderr,
                R"XXX(Usage:

    mvsim node --help     Show this help
    mvsim node list       List all nodes connected to the server.

)XXX");

        return showErrorMsg ? 1 : 0;
}