//=-------------------------------------------------------------------------=//
//  base definition                                                         //
//                                                                           //
//  Copyright © 2021 Libre en Communs (contact@a-lec.org)                    //
//  Copyright © 2021 Adrien Bourmault (neox@a-lec.org)                       //
//                                                                           //
//  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 <sys/param.h>
#include <stdbool.h>
#include <assert.h>
#include <unistd.h>
#include <malloc.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <netinet/in.h>
#include <omp.h>

#define BASE_H

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

#define LOGMSG "<%s:%s()>"

#define printlog(FORMAT, ...) printf("\e[0;36m" LOGMSG "\e[0m" " " FORMAT \
                                     "\e[0m", __FILE__,__func__, ##__VA_ARGS__)

#define printerr(FORMAT,...) fprintf(stderr, "\e[0;31m" LOGMSG "\e[0m" " " \
                                     FORMAT "\e[0m", __FILE__,__func__, \
                                     ##__VA_ARGS__)

#define LEN(x)  (sizeof(x) / sizeof((x)[0]))

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

struct parameters_t
{
    char *configDir;
    char *userDir;
    char *modelDir;
};

/*
 * Structure describing an arrow
 */
struct arrow_t {
    uint load;
    uint site;
    uint x;
    uint y;
    uint z;
};

struct space_unit_t
{
    bool lock;
    struct arrow_t **sites;     // Array of struct arrow_t* elements
                                // - lenght is multiplicity
};

struct space_t
{
    // Dimensions of space.
    // Note that a value 0 is not allowed, minimum is 1
    int x_dim;
    int y_dim;
    int z_dim;

    struct space_unit_t *units; // (flat) arraw of space_unit_t elements :
                                // - lenght is x_dim * y_dim * z_dim
                                // - access to the (x,y,z) is done by
                                //      units[  x
                                //              + dim_x * y
                                //              + dim_x * dim_y * z ]
};

struct state_t
{
    // Metadata
    int id;
    int owner_id;
    time_t date;

    struct space_t *space;
};

struct model_t {

    // Metadata
    int id;
    int owner_id;
    time_t date;
    union version
    {
        int major;
        int minor;
    };

    // User friendly metadata
    char *owner_name;
    char *model_name;

    // Model parameters
    int multiplicity;           // number of sites in a space_unit
    int dimension;              // number of space dimensions

    // Simulation parameters
    int max_thread;
    int max_cycles;

    // Handler to the current space of the model
    struct space_t *space;

    // Handler to the saved states of the model
    struct state_t **states;

};

struct worker_t
{
    int id;
    int thread_num;
    int status;
};

struct scheduler_t
{
    int id;
    struct model_t **model;      // Queue (array) of waiting models
};