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#include "nvs_config.h"
#include <string.h>
#include "esp_log.h"
#include "nvs.h"
#include "nvs_flash.h"
#include "viewport_state.h"
static const char *TAG = "nvs_config";
static const char *NS = "viewport";
static const char *K_VIEWPORT = "viewport";
static const char *K_SCRYPTED = "scrypted";
static const char *K_IDLE_MS = "idle_ms";
static const char *K_ORIENT = "orient"; // 0 = portrait, 1 = landscape
static const char *K_BRIGHT = "bright";
esp_err_t nvs_config_load(void)
{
nvs_handle_t h;
esp_err_t err = nvs_open(NS, NVS_READONLY, &h);
if (err == ESP_ERR_NVS_NOT_FOUND) {
ESP_LOGI(TAG, "no saved config — first boot");
return ESP_OK;
}
if (err != ESP_OK) return err;
viewport_state_lock();
viewport_state_t *st = viewport_state_get();
size_t len = sizeof(st->viewport_name);
err = nvs_get_str(h, K_VIEWPORT, st->viewport_name, &len);
if (err != ESP_OK && err != ESP_ERR_NVS_NOT_FOUND) goto done;
len = sizeof(st->scrypted_url);
err = nvs_get_str(h, K_SCRYPTED, st->scrypted_url, &len);
if (err != ESP_OK && err != ESP_ERR_NVS_NOT_FOUND) goto done;
uint32_t u32 = 0;
err = nvs_get_u32(h, K_IDLE_MS, &u32);
if (err == ESP_OK) st->idle_timeout_ms = u32;
else if (err != ESP_ERR_NVS_NOT_FOUND) goto done;
uint8_t u8 = 0;
err = nvs_get_u8(h, K_ORIENT, &u8);
if (err == ESP_OK) {
st->orientation = (u8 == 1) ? VIEWPORT_ORIENTATION_LANDSCAPE
: VIEWPORT_ORIENTATION_PORTRAIT;
} else if (err != ESP_ERR_NVS_NOT_FOUND) {
goto done;
}
err = nvs_get_u8(h, K_BRIGHT, &u8);
if (err == ESP_OK) st->brightness = u8;
else if (err != ESP_ERR_NVS_NOT_FOUND) goto done;
err = ESP_OK;
// "Configured" = a scrypted URL has been registered. viewport_name
// always has a value (MAC-derived default seeded in viewport_state_init).
st->configured = (st->scrypted_url[0] != '\0');
ESP_LOGI(TAG, "loaded config: viewport=%s scrypted=%s "
"idle_ms=%u orient=%s bright=%u (%s)",
st->viewport_name,
st->scrypted_url[0] ? st->scrypted_url : "(none)",
(unsigned)st->idle_timeout_ms,
st->orientation == VIEWPORT_ORIENTATION_LANDSCAPE
? "landscape" : "portrait",
st->brightness,
st->configured ? "configured" : "no scrypted URL");
done:
viewport_state_unlock();
nvs_close(h);
return err;
}
esp_err_t nvs_config_save(void)
{
nvs_handle_t h;
esp_err_t err = nvs_open(NS, NVS_READWRITE, &h);
if (err != ESP_OK) return err;
viewport_state_lock();
viewport_state_t *st = viewport_state_get();
if ((err = nvs_set_str(h, K_VIEWPORT, st->viewport_name)) != ESP_OK) goto done;
if ((err = nvs_set_str(h, K_SCRYPTED, st->scrypted_url)) != ESP_OK) goto done;
if ((err = nvs_set_u32(h, K_IDLE_MS, st->idle_timeout_ms)) != ESP_OK) goto done;
if ((err = nvs_set_u8 (h, K_ORIENT,
(st->orientation == VIEWPORT_ORIENTATION_LANDSCAPE)
? 1 : 0)) != ESP_OK) goto done;
if ((err = nvs_set_u8 (h, K_BRIGHT, st->brightness)) != ESP_OK) goto done;
err = nvs_commit(h);
done:
viewport_state_unlock();
nvs_close(h);
return err;
}
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