mvsim-cli-main.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 <mrpt/3rdparty/tclap/CmdLine.h>
#include <mrpt/core/exceptions.h>
#include <mrpt/system/CTicTac.h>
#include <mrpt/system/os.h>      // kbhit()

#include <chrono>
#include <iostream>
#include <map>

#include "mvsim-cli.h"

TCLAP::CmdLine cmd("mvsim", ' ', "version", false /* no --help */);

TCLAP::UnlabeledMultiArg<std::string> argCmd(
        "command", "Command to run. Run 'mvsim help' to list commands.", false, "",
        cmd);

TCLAP::ValueArg<std::string> argVerbosity(
        "v", "verbose", "Verbosity level", false, "INFO", "ERROR|WARN|INFO|DEBUG",
        cmd);

TCLAP::SwitchArg argDetails(
        "", "details", "Shows details in the specified subcommand", cmd);

TCLAP::SwitchArg argHelp(
        "h", "help", "Shows more detailed help for command", cmd);

// ======= Command handlers =======

static const std::map<std::string, cmd_t> cliCommands = {
        {"help", cmd_t(&printListCommands)},
        {"server", cmd_t(&launchStandAloneServer)},
        {"launch", cmd_t(&launchSimulation)},
        {"node", cmd_t(&commandNode)},
        {"topic", cmd_t(&commandTopic)},
};

int main(int argc, char** argv)
{
        try
        {
                if (!cmd.parse(argc, argv))
                {
                        printListCommands();
                        return 1;
                }

                // Take first unlabeled argument:
                std::string command;
                if (const auto& lst = argCmd.getValue(); !lst.empty())
                        command = lst.at(0);

                // Look up command in table:
                auto itCmd = cliCommands.find(command);

                if (!argCmd.isSet() || itCmd == cliCommands.end())
                {
                        mrpt::system::setConsoleColor(mrpt::system::CONCOL_RED);
                        std::cerr << "Error: missing or unknown command.\n";
                        mrpt::system::setConsoleColor(mrpt::system::CONCOL_NORMAL);
                        printListCommands();
                        return 1;
                }

                // Execute command:
                return (itCmd->second)();
        }
        catch (const std::exception& e)
        {
                std::cerr << "ERROR: " << mrpt::exception_to_str(e);
                return 1;
        }
        return 0;
}

int printListCommands()
{
        fprintf(
                stderr,
                R"XXX(mvsim: A lightweight multivehicle simulation environment.

Available commands:
    mvsim launch <WORLD.xml>  Start a comm. server and simulates a world.
    mvsim server              Start a standalone communication server.
    mvsim node                List connected nodes, etc.
    mvsim topic               Inspect, publish, etc. topics.

Or use `mvsim <COMMAND> --help` for further options
)XXX");
        return 0;
}