#include "nvs_flash.h"
#include "nvs.h"
#include "nvs_handle.hpp"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

#include "sdkconfig.h"

#include <inttypes.h>
#include <stdio.h>
#include <expected>

#include "wifi_provisioner.hpp"

extern "C" void app_main(void)
{
  esp_err_t err = nvs_flash_init();
  if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND)
  {
    // NVS partition was truncated and needs to be erased
    // Retry nvs_flash_init
    ESP_ERROR_CHECK(nvs_flash_erase());
    err = nvs_flash_init();
  }

  ESP_ERROR_CHECK(err);

  auto* provisioner = new WifiProvisioner("wifi_settings");
  if (!provisioner->addParameter("SSID", "ssid", WifiProvisioner::Parameter::Type::STRING).has_value())
  {
    printf("Error adding parameter.");
    return;
  }

  if (!provisioner->addParameter("Password", "password", WifiProvisioner::Parameter::Type::STRING).has_value())
  {
    printf("Error adding parameter.");
    return;
  }

  if (!provisioner->parametersAreConfigured())
  {
    auto result = provisioner->startProvisioning();
    if (!result.has_value())
      printf("Error: %s\n", esp_err_to_name(result.error()));
    else
      printf("Provisioning started...\n");
  }
}