#include "sd.h"

sdmmc_card_t *card;

static const char* mount_point = MOUNT_POINT;
static const char* TAG = "sd";

bool init_sd() {
    ESP_LOGI(TAG, "Initializing SD card");

    esp_err_t ret;

    esp_vfs_fat_sdmmc_mount_config_t mount_config = {
        .format_if_mount_failed = false,
        .max_files = 8,
        .allocation_unit_size = 16 * 1024,
        .disk_status_check_enable = true,
        .use_one_fat = false,
    };

    ESP_LOGI(TAG, "Using SDMMC peripheral");
    sdmmc_host_t host = SDMMC_HOST_DEFAULT();

    // This initializes the slot without card detect (CD) and write protect (WP) signals.
    // Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
    sdmmc_slot_config_t slot_config = {
        .clk = SD_PIN_CLK,
        .cmd = SD_PIN_CMD,
        .d0 = SD_PIN_D0,
        .d1 = SD_PIN_D1,
        .d2 = SD_PIN_D2,
        .d3 = SD_PIN_D3,
        .d4 = GPIO_NUM_NC,
        .d5 = GPIO_NUM_NC,
        .d6 = GPIO_NUM_NC,
        .d7 = GPIO_NUM_NC,
        .cd = GPIO_NUM_NC,
        .wp = GPIO_NUM_NC,
        .width = 4,
        .flags = 0
        // .flags = SDMMC_SLOT_FLAG_INTERNAL_PULLUP
    };

    ESP_LOGI(TAG, "Mounting filesystem");
    ret = esp_vfs_fat_sdmmc_mount(mount_point, &host, &slot_config, &mount_config, &card);

    if (ret != ESP_OK) {
        if (ret == ESP_FAIL) {
            ESP_LOGE(TAG, "Failed to mount filesystem. "
                     "If you want the card to be formatted, set the EXAMPLE_FORMAT_IF_MOUNT_FAILED menuconfig option.");
        } else {
            ESP_LOGE(TAG, "Failed to initialize the card (%s). "
                     "Make sure SD card lines have pull-up resistors in place.", esp_err_to_name(ret));
        }
        return false;
    }
    ESP_LOGI(TAG, "Filesystem mounted");

    // Card has been initialized, print its properties
    sdmmc_card_print_info(stdout, card);
    return true;
}

void deinit_sd() {
    ESP_ERROR_CHECK_WITHOUT_ABORT(esp_vfs_fat_sdcard_unmount(mount_point, card));
    ESP_LOGI(TAG, "Card unmounted");
}