#include <Arduino.h>
#include <WiFi.h>
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <ElegantOTA.h>

const char* ssid     = "UPB-Guest";
const char* password = "";
// OTA basic auth (recommended)
const char* ota_user = "admin";
const char* ota_pass = "change-me";

AsyncWebServer server(80);

void setup() {
  Serial.begin(115200);
  delay(200);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(300);
    Serial.print(".");
  }
  Serial.println();

  Serial.print("Connected. IP: ");
  Serial.println(WiFi.localIP());

  // Simple landing page
  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
    request->send(200, "text/plain",
      "ESP32-C6 Sparrow OTA ready.\n"
      "Go to /update to upload new firmware.");
  });

  // Start ElegantOTA (async mode with ESPAsyncWebServer)
  ElegantOTA.begin(&server, ota_user, ota_pass);

  server.begin();
  Serial.println("HTTP server started.");
  Serial.println("Open http://<device-ip>/update");
}

void loop() {
  ElegantOTA.loop();
}