#include "board_led.h"
#include "hw_pins.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "nvs.h"

static const char *TAG = "board_led";
static bool s_led_enabled = false;

esp_err_t board_led_init(void)
{
    /* Configure GPIO */
    gpio_config_t io_conf = {
        .pin_bit_mask = (1ULL << HW_STATUS_LED_GPIO),
        .mode = GPIO_MODE_OUTPUT,
        .pull_up_en = GPIO_PULLUP_DISABLE,
        .pull_down_en = GPIO_PULLDOWN_DISABLE,
        .intr_type = GPIO_INTR_DISABLE,
    };
    gpio_config(&io_conf);

    /* Load persisted preference from NVS (default: false / OFF) */
    nvs_handle_t h;
    if (nvs_open("mtg_cfg", NVS_READONLY, &h) == ESP_OK) {
        uint8_t val = 0;
        if (nvs_get_u8(h, "led_en", &val) == ESP_OK) {
            s_led_enabled = (val != 0);
        }
        nvs_close(h);
    }

    gpio_set_level(HW_STATUS_LED_GPIO, s_led_enabled ? 1 : 0);
    ESP_LOGI(TAG, "Onboard status LED initialized on GPIO %d (state: %s)",
             HW_STATUS_LED_GPIO, s_led_enabled ? "ON" : "OFF");
    return ESP_OK;
}

bool board_led_get_enabled(void)
{
    return s_led_enabled;
}

void board_led_set_enabled(bool enabled)
{
    s_led_enabled = enabled;
    gpio_set_level(HW_STATUS_LED_GPIO, s_led_enabled ? 1 : 0);

    /* Persist to NVS */
    nvs_handle_t h;
    if (nvs_open("mtg_cfg", NVS_READWRITE, &h) == ESP_OK) {
        nvs_set_u8(h, "led_en", enabled ? 1 : 0);
        nvs_commit(h);
        nvs_close(h);
    }
    ESP_LOGI(TAG, "Onboard status LED set to %s", enabled ? "ON" : "OFF");
}