#include "storage.h"
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "esp_littlefs.h"
#include "esp_log.h"

static const char* TAG = "datalog";

#define MAX_LOG_SIZE (700 * 1024)

void storage_init(void)
{
    ESP_LOGI(TAG, "Initializing DataLog with LittleFS");

    esp_vfs_littlefs_conf_t conf = {
        .base_path = "/littlefs",
        .partition_label = "littlefs",
        .format_if_mount_failed = true,
        .dont_mount = false,
    };

    esp_err_t ret = esp_vfs_littlefs_register(&conf);

    if (ret != ESP_OK)
    {
        if (ret == ESP_FAIL)
        {
            ESP_LOGE(TAG, "Failed to mount or format filesystem");
        }
        else if (ret == ESP_ERR_NOT_FOUND)
        {
            ESP_LOGE(TAG, "Failed to find LittleFS partition");
        }
        else
        {
            ESP_LOGE(TAG, "Failed to initialize LittleFS (%s)", esp_err_to_name(ret));
        }
        return;
    }

    size_t total = 0, used = 0;
    ret = esp_littlefs_info(conf.partition_label, &total, &used);
    if (ret != ESP_OK)
    {
        ESP_LOGE(TAG, "Failed to get LittleFS partition information (%s)", esp_err_to_name(ret));
    }
    else
    {
        ESP_LOGI(TAG, "Partition size: total: %d, used: %d", total, used);
    }
}