#define LV_USE_SDL 1

#include <stdio.h>
#include "esp_wifi.h"
#include "ihm.h"
#include "mqtt_client.h"
#include "backends.h"
#include <unistd.h>
#include "driver_backends.h"
#include "simulator_util.h"
#include "simulator_settings.h"

esp_mqtt_client_handle_t client;

/* contains the name of the selected backend if user
 * has specified one on the command line */
static char *selected_backend;

/* Global simulator settings, defined in lv_linux_backend.c */
extern simulator_settings_t settings;

void die(const char *msg, ...)
{
    va_list args;

    va_start(args, msg);
    vfprintf(stderr, msg, args);
    va_end(args);

    exit(EXIT_FAILURE);

}

/**
 * @brief Print LVGL version
 */
static void print_lvgl_version(void)
{
    fprintf(stdout, "%d.%d.%d-%s\n",
            LVGL_VERSION_MAJOR,
            LVGL_VERSION_MINOR,
            LVGL_VERSION_PATCH,
            LVGL_VERSION_INFO);
}

/**
 * @brief Print usage information
 */
static void print_usage(void)
{
    fprintf(stdout, "\nlvglsim [-V] [-B] [-b backend_name] [-W window_width] [-H window_height]\n\n");
    fprintf(stdout, "-V print LVGL version\n");
    fprintf(stdout, "-B list supported backends\n");
}

/**
 * @brief Configure simulator
 * @description process arguments recieved by the program to select
 * appropriate options
 * @param argc the count of arguments in argv
 * @param argv The arguments
 */
static void configure_simulator(int argc, char **argv)
{
    int opt = 0;

    selected_backend = NULL;
    driver_backends_register();

    const char *env_w = getenv("LV_SIM_WINDOW_WIDTH");
    const char *env_h = getenv("LV_SIM_WINDOW_HEIGHT");
    /* Default values */
    settings.window_width = atoi(env_w ? env_w : "1024");
    settings.window_height = atoi(env_h ? env_h : "600");

    /* Parse the command-line options. */
    while ((opt = getopt (argc, argv, "b:fmW:H:BVh")) != -1) {
        switch (opt) {
        case 'h':
            print_usage();
            exit(EXIT_SUCCESS);
            break;
        case 'V':
            print_lvgl_version();
            exit(EXIT_SUCCESS);
            break;
        case 'B':
            driver_backends_print_supported();
            exit(EXIT_SUCCESS);
            break;
        case 'b':
            if (driver_backends_is_supported(optarg) == 0) {
                die("error no such backend: %s\n", optarg);
            }
            selected_backend = strdup(optarg);
            break;
        case 'W':
            settings.window_width = atoi(optarg);
            break;
        case 'H':
            settings.window_height = atoi(optarg);
            break;
        case ':':
            print_usage();
            die("Option -%c requires an argument.\n", optopt);
            break;
        case '?':
            print_usage();
            die("Unknown option -%c.\n", optopt);
        }
    }
}
int main(int argc, char const *argv[])
{
    /* code */
    printf("hello\n");
    init_display_ihm();

    /* Initialize LVGL. */
    lv_init();
    configure_simulator(argc, argv);
   /* Initialize the configured backend */
    if (driver_backends_init_backend(selected_backend) == -1) {
        die("Failed to initialize display backend");
    }
    lv_sdl_mouse_create();
    lv_sdl_keyboard_create();
    lv_sdl_mousewheel_create();
    lv_sdl_mousewheel_create();
    draw_ihm();
        /* Enter the run loop of the selected backend */
    driver_backends_run_loop();

    return 0;
}