//=-------------------------------------------------------------------------=//
//  Local worker module                                                      //
//                                                                           //
//  Copyright © 2021 The Gem-graph Project                                   //
//                                                                           //
//  This file is part of gem-graph.                                          //
//                                                                           //
//  This program is free software: you can redistribute it and/or modify     //
//  it under the terms of the GNU Affero General Public License as           //
//  published by the Free Software Foundation, either version 3 of the       //
//  License, 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 Affero General Public License for more details.                      //
//                                                                           //
//  You should have received a copy of the GNU Affero General Public License //
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.   //
//=-------------------------------------------------------------------------=//

#include "../include/base.h"

static void *workerMain(void *worker);

/* -------------------------------------------------------------------------- */

// -------------------------------------------------------------------------- //
// Scheduler init function                                                    //
// -------------------------------------------------------------------------- //
void WorkerInit(Worker_t *worker)
{
    worker->id = (pthread_t*) calloc(1, sizeof(pthread_t));
    if (pthread_create(worker->id, NULL, workerMain, worker)) {
        printLog("Worker #%lu can't be initialized!\n", *(worker->id));
        return;
    }
}

// -------------------------------------------------------------------------- //
// Scheduler thread main function                                             //
// -------------------------------------------------------------------------- //
static void *workerMain(void *worker)
{
    Worker_t *args;
    int a = rand()%__INT_MAX__;

    args = (Worker_t*) worker;
    printLog("Worker #%lu online\n", *args->id);

    int size = args->globalDrawingSpace->size;
    /* In each cell: the West (left) site is 0, the East (right) site is 1 */
    for (int orig=0; orig < size; orig++){
        int nxt1 = (orig + 1) % size,
            nxt2 = (orig + 2) % size,
            prv1 = (orig - 1 + size) % size;

        if(
                args->globalDrawingSpace->space[orig].sites[1].nArrow == 1
            &&  args->globalDrawingSpace->space[nxt2].sites[0].nArrow == 0

           ) {
                args->globalDrawingSpace->space[orig].sites[1].nArrow = 0;
                args->globalDrawingSpace->space[nxt1].sites[0].nArrow = 0;
                args->globalDrawingSpace->space[nxt1].sites[1].nArrow = 1;
                args->globalDrawingSpace->space[nxt2].sites[0].nArrow = 1;

        /* TODO args->arrowArray->array[1].siteId = 0;*/
        }

        else if(
                args->globalDrawingSpace->space[orig].sites[1].nArrow == 1
            &&  args->globalDrawingSpace->space[prv1].sites[0].nArrow == 0

           ) {
                args->globalDrawingSpace->space[orig].sites[1].nArrow = 0;
                args->globalDrawingSpace->space[nxt1].sites[0].nArrow = 0;
                args->globalDrawingSpace->space[orig].sites[0].nArrow = 1;
                args->globalDrawingSpace->space[prv1].sites[1].nArrow = 1;

        /* TODO args->arrowArray->array[1].siteId = 0;*/
        }
    }

    args->returnValue = a;
    args->terminated = true;

    printLog("Worker #%lu offline\n", *args->id);

    return NULL;
}