#include <stdio.h>
#include <inttypes.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_chip_info.h"
#include "esp_flash.h"
#include "esp_system.h"
#include "driver/gpio.h"
#include "esp_vfs_dev.h"
#include "esp_vfs_cdcacm.h"

#define LED_GPIO 15

void app_main(void)
{
    // Initialisation explicite du CDC-ACM pour ESP32-S2
#if CONFIG_ESP_CONSOLE_USB_CDC
    esp_err_t ret = esp_vfs_dev_cdcacm_register();
    if (ret != ESP_OK) {
        // Si l'initialisation échoue, on continue quand même
    }
#endif

    // Délai pour permettre l'initialisation USB-CDC
    vTaskDelay(pdMS_TO_TICKS(1000));

    printf("\n\n=== Démarrage ESP32-S2 avec USB-CDC ===\n\n");

    gpio_config_t io_conf = {
        .pin_bit_mask = (1ULL << 15),
        .mode = GPIO_MODE_OUTPUT,
        .pull_up_en = GPIO_PULLUP_DISABLE,
        .pull_down_en = GPIO_PULLDOWN_DISABLE,
        .intr_type = GPIO_INTR_DISABLE, // No interrupt for now
    };

    gpio_config(&io_conf);

    while(1) {
        printf("loop from ESP32-S2 via USB-CDC!\n");
        gpio_set_level(LED_GPIO, 1);
        vTaskDelay(1000 / portTICK_PERIOD_MS);
        gpio_set_level(LED_GPIO, 0);
        vTaskDelay(1000 / portTICK_PERIOD_MS);
    }
}