/*
 * Copyright (C) 2017 Inria
 *               2017 Kaspar Schleiser <kaspar@schleiser.de>
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */

/**
 * @ingroup     examples
 * @{
 *
 * @file
 * @brief       Example of how to use javascript on RIOT
 *
 * @author      Emmanuel Baccelli <emmanuel.baccelli@inria.fr>
 * @author      Kaspar Schleiser <kaspar@schleiser.de>
 *
 * @}
 */

#include <stdio.h>
#include <string.h>

#include "jerryscript.h"
#include "jerryscript-ext/handler.h"

/* include header generated from main.js */
#include "main.js.h"

int js_run(const jerry_char_t *script, size_t script_size)
{
    jerry_value_t ret_value;

    /* Initialize engine */
    jerry_init(JERRY_INIT_EMPTY);

    /* Register the print function in the global object. */
    jerryx_handler_register_global((const jerry_char_t *) "print", jerryx_handler_print);

    /* Setup Global scope code */
    ret_value = jerry_parse(script, script_size, false);

    if (!jerry_value_has_error_flag(ret_value)) {
        /* Execute the parsed source code in the Global scope */
        ret_value = jerry_run(ret_value);
    }

    int res = 0;

    if (jerry_value_has_error_flag(ret_value)) {
        printf("js_run(): Script Error!");
        res = -1;
    }

    jerry_release_value(ret_value);

    /* Cleanup engine */
    jerry_cleanup();

    return res;
}

int main(void)
{
    printf("You are running RIOT on a(n) %s board.\n", RIOT_BOARD);
    printf("This board features a(n) %s MCU.\n", RIOT_MCU);

    printf("Executing main.js:\n");

    js_run(main_js, main_js_len);

    return 0;
}