#pragma once

#include "esp_err.h"
#include "esp_event.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"

#define WIFI_CONNECTED_BIT  BIT0
#define WIFI_FAIL_BIT       BIT1

/**
 * Initialize WiFi subsystem (STA mode).
 * Reads SSID/password from NVS. If not set, waits for serial configuration.
 */
esp_err_t wifi_manager_init(void);

/**
 * Start WiFi connection. Non-blocking, fires events.
 */
esp_err_t wifi_manager_start(void);

/**
 * Block until WiFi is connected or failed.
 * @param timeout_ms  Max time to wait (portMAX_DELAY for forever)
 * @return ESP_OK if connected, ESP_ERR_TIMEOUT otherwise
 */
esp_err_t wifi_manager_wait_connected(uint32_t timeout_ms);

/**
 * Check if WiFi is currently connected.
 */
bool wifi_manager_is_connected(void);

/**
 * Save WiFi credentials to NVS.
 */
esp_err_t wifi_manager_set_credentials(const char *ssid, const char *password);

/**
 * Get the current IP address string (or "0.0.0.0" if not connected).
 */
const char *wifi_manager_get_ip(void);

/**
 * Get the event group for WiFi state (WIFI_CONNECTED_BIT / WIFI_FAIL_BIT).
 */
EventGroupHandle_t wifi_manager_get_event_group(void);