/* Copyright (C) 2019
 *
 * This file is part of the osdev components suite
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
 */

// std
#include <iostream>
#include <unistd.h>
#include <chrono>

#include "publisher.h"

enum TIME_RES
{
    T_MICRO,
    T_MILLI,
    T_SECONDS
};

std::uint64_t getEpochUSecs()
{
    auto tsUSec =std::chrono::time_point_cast<std::chrono::microseconds>(std::chrono::system_clock::now());
    return static_cast<std::uint64_t>(tsUSec.time_since_epoch().count());
}


void sleepcp( int number, TIME_RES resolution = T_MILLI )    // Cross-platform sleep function
{
    int factor = 0; // Should not happen..

    switch( resolution )
    {
        case T_MICRO:
            factor = 1;
            break;

        case T_MILLI:
            factor = 1000;
            break;

        case T_SECONDS:
            factor = 1000000;
        break;
    }

    usleep( number * factor );
}

int main( int argc, char* argv[] )
{
    // We're not using the command parameters, so we just want to keep the compiler happy.
    (void)argc;
    (void)argv;

    uint64_t messageNumber = 0;

    // Create the publisher, run it and publish a message every 0.001 sec.
    std::cout << "Create the publisher object : ";
    Publisher *pPublisher = new Publisher();
    if( pPublisher != nullptr )
    {
        std::cout << "{OK}" << std::endl;
        std::cout << "Connecting to the broker : ";
        pPublisher->connect( "localhost", 1883, "", "" );

        // Assume we are connected now, start publishing.
        while( 1 )
        {
            std::string payload = "<Timestamp value=\"" + std::to_string( getEpochUSecs() ) + "\" /><MessageNumber value=\"" + std::to_string( messageNumber ) + "\" />" ;
            pPublisher->publish( std::string( "test/publisher/TestPublisher" ), payload );

            sleepcp( 1, T_SECONDS );
            if( messageNumber > 2000000000 )
                messageNumber = -1;

            messageNumber++;
        }
    }
    else
        return -1;

}