/*
Please read README.md file in this folder, or on the web:
https://github.com/espressif/arduino-esp32/tree/master/libraries/WiFiProv/examples/WiFiProv

Note: This sketch takes up a lot of space for the app and may not be able to flash with default setting on some chips.
  If you see Error like this: "Sketch too big"
  In Arduino IDE go to: Tools > Partition scheme > chose anything that has more than 1.4MB APP
   - for example "No OTA (2MB APP/2MB SPIFFS)"
*/

#include "WiFiProv.h"
#include "WiFi.h"

// #define USE_SOFT_AP // Uncomment if you want to enforce using the Soft AP method instead of BLE
const char * pop = "abcd1234"; // Proof of possession - otherwise called a PIN - string provided by the device, entered by the user in the phone app
const char * service_name = "PROV_123"; // Name of your device (the Espressif apps expects by default device name starting with "Prov_")
const char * service_key = NULL; // Password used for SofAP method (NULL = no password needed)
bool reset_provisioned = true; // When true the library will automatically delete previously provisioned data.

// WARNING: SysProvEvent is called from a separate FreeRTOS task (thread)!
void SysProvEvent(arduino_event_t *sys_event)
{
    switch (sys_event->event_id) {
    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
        Serial.print("\nConnected IP address : ");
        Serial.println(IPAddress(sys_event->event_info.got_ip.ip_info.ip.addr));
        break;
    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
        Serial.println("\nDisconnected. Connecting to the AP again... ");
        break;
    case ARDUINO_EVENT_PROV_START:
        Serial.println("\nProvisioning started\nGive Credentials of your access point using smartphone app");
        break;
    case ARDUINO_EVENT_PROV_CRED_RECV: {
        Serial.println("\nReceived Wi-Fi credentials");
        Serial.print("\tSSID : ");
        Serial.println((const char *) sys_event->event_info.prov_cred_recv.ssid);
        Serial.print("\tPassword : ");
        Serial.println((char const *) sys_event->event_info.prov_cred_recv.password);
        break;
    }
    case ARDUINO_EVENT_PROV_CRED_FAIL: {
        Serial.println("\nProvisioning failed!\nPlease reset to factory and retry provisioning\n");
        if(sys_event->event_info.prov_fail_reason == WIFI_PROV_STA_AUTH_ERROR)
            Serial.println("\nWi-Fi AP password incorrect");
        else
            Serial.println("\nWi-Fi AP not found....Add API \" nvs_flash_erase() \" before beginProvision()");
        break;
    }
    case ARDUINO_EVENT_PROV_CRED_SUCCESS:
        Serial.println("\nProvisioning Successful");
        break;
    case ARDUINO_EVENT_PROV_END:
        Serial.println("\nProvisioning Ends");
        break;
    default:
        break;
    }
}

void setup() {
  Serial.begin(115200);
  WiFi.onEvent(SysProvEvent);

// BLE Provisioning using the ESP SoftAP Prov works fine for any BLE SoC, incuding ESP32, ESP32S3 and ESP32C3.
#if CONFIG_BLUEDROID_ENABLED && !defined(USE_SOFT_AP)
    Serial.println("Begin Provisioning using BLE");
    // Sample uuid that user can pass during provisioning using BLE
    uint8_t uuid[16] = {0xb4, 0xdf, 0x5a, 0x1c, 0x3f, 0x6b, 0xf4, 0xbf,
                        0xea, 0x4a, 0x82, 0x03, 0x04, 0x90, 0x1a, 0x02 };
    WiFiProv.beginProvision(WIFI_PROV_SCHEME_BLE, WIFI_PROV_SCHEME_HANDLER_FREE_BTDM, WIFI_PROV_SECURITY_1, pop, service_name, service_key, uuid, reset_provisioned);
    log_d("ble qr");
    WiFiProv.printQR(service_name, pop, "ble");
#else
    Serial.println("Begin Provisioning using Soft AP");
    WiFiProv.beginProvision(WIFI_PROV_SCHEME_SOFTAP, WIFI_PROV_SCHEME_HANDLER_NONE, WIFI_PROV_SECURITY_1, pop, service_name, service_key);
    log_d("wifi qr");
    WiFiProv.printQR(service_name, pop, "softap");
#endif
}

void loop() {
}
