/*
 * Setup code
 */

void wledInit()
{
  EEPROM.begin(EEPSIZE);
  ledCount = EEPROM.read(229) + ((EEPROM.read(398) << 8) & 0xFF00);
  if (ledCount > 1200 || ledCount == 0) ledCount = 30;
  #ifndef ARDUINO_ARCH_ESP32
  #if LEDPIN == 3
  if (ledCount > 300) ledCount = 300; //DMA method uses too much ram
  #endif
  #endif
  Serial.begin(115200);
  Serial.setTimeout(50);
  DEBUG_PRINTLN();
  DEBUG_PRINT("---WLED "); DEBUG_PRINT(versionString); DEBUG_PRINT(" "); DEBUG_PRINT(VERSION); DEBUG_PRINTLN(" INIT---");
  #ifdef ARDUINO_ARCH_ESP32
  DEBUG_PRINT("esp32 ");   DEBUG_PRINTLN(ESP.getSdkVersion());
  #else
  DEBUG_PRINT("esp8266 "); DEBUG_PRINTLN(ESP.getCoreVersion());
  #endif
  int heapPreAlloc = ESP.getFreeHeap();
  DEBUG_PRINT("heap ");
  DEBUG_PRINTLN(ESP.getFreeHeap());

  strip.init(EEPROM.read(372),ledCount,EEPROM.read(2204)); //init LEDs quickly

  DEBUG_PRINT("LEDs inited. heap usage ~");
  DEBUG_PRINTLN(heapPreAlloc - ESP.getFreeHeap());

  #ifndef WLED_DISABLE_FILESYSTEM
   #ifdef ARDUINO_ARCH_ESP32
    SPIFFS.begin(true);
   #endif
    SPIFFS.begin();
  #endif

  DEBUG_PRINTLN("Load EEPROM");
  loadSettingsFromEEPROM(true);
  beginStrip();
  DEBUG_PRINT("CSSID: ");
  DEBUG_PRINT(clientSSID);
  userBeginPreConnection();
  if (strcmp(clientSSID,"Your_Network") == 0) showWelcomePage = true;
  WiFi.persistent(false);
  initCon();

  DEBUG_PRINTLN("");
  DEBUG_PRINT("Connected! IP address: ");
  DEBUG_PRINTLN(WiFi.localIP());

  if (hueIP[0] == 0)
  {
    hueIP[0] = WiFi.localIP()[0];
    hueIP[1] = WiFi.localIP()[1];
    hueIP[2] = WiFi.localIP()[2];
  }

  if (udpPort > 0 && udpPort != ntpLocalPort)
  {
    udpConnected = notifierUdp.begin(udpPort);
    if (udpConnected && udpRgbPort != udpPort) udpRgbConnected = rgbUdp.begin(udpRgbPort);
  }
  if (ntpEnabled && WiFi.status() == WL_CONNECTED)
  ntpConnected = ntpUdp.begin(ntpLocalPort);

  //start captive portal if AP active
  if (onlyAP || strlen(apSSID) > 0)
  {
    dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
    dnsServer.start(53, "*", WiFi.softAPIP());
    dnsActive = true;
  }

  prepareIds(); //UUID from MAC (for Alexa and MQTT)
  if (strcmp(cmDNS,"x") == 0) //fill in unique mdns default
  {
    strcpy(cmDNS, "wled-");
    sprintf(cmDNS+5, "%*s", 6, escapedMac.c_str()+6);
  }
  if (mqttDeviceTopic[0] == 0)
  {
    strcpy(mqttDeviceTopic, "wled/");
    sprintf(mqttDeviceTopic+5, "%*s", 6, escapedMac.c_str()+6);
  }
  if (mqttClientID[0] == 0)
  {
    strcpy(mqttClientID, "WLED-");
    sprintf(mqttClientID+5, "%*s", 6, escapedMac.c_str()+6);
  }

  strip.service();

  //HTTP server page init
  initServer();

  strip.service();
  //init Alexa hue emulation
  if (alexaEnabled && !onlyAP) alexaInit();

  server.begin();
  DEBUG_PRINTLN("HTTP server started");

  //init ArduinoOTA
  if (!onlyAP) {
    #ifndef WLED_DISABLE_OTA
    if (aOtaEnabled)
    {
      ArduinoOTA.onStart([]() {
        #ifndef ARDUINO_ARCH_ESP32
        wifi_set_sleep_type(NONE_SLEEP_T);
        #endif
        DEBUG_PRINTLN("Start ArduinoOTA");
      });
      if (strlen(cmDNS) > 0) ArduinoOTA.setHostname(cmDNS);
      ArduinoOTA.begin();
    }
    #endif

    strip.service();
    // Set up mDNS responder:
    if (strlen(cmDNS) > 0 && !onlyAP)
    {
      MDNS.begin(cmDNS);
      DEBUG_PRINTLN("mDNS responder started");
      // Add service to MDNS
      MDNS.addService("http", "tcp", 80);
      MDNS.addService("wled", "tcp", 80);
    }
    strip.service();

    initBlynk(blynkApiKey);
    initE131();
    reconnectHue();
  } else {
    e131Enabled = false;
  }

  userBegin();

  if (macroBoot>0) applyMacro(macroBoot);
  Serial.println("Ada");
}


void beginStrip()
{
  // Initialize NeoPixel Strip and button

#ifdef BTNPIN
  pinMode(BTNPIN, INPUT_PULLUP);
#endif

  if (bootPreset>0) applyPreset(bootPreset, turnOnAtBoot, true, true);
  colorUpdated(0);

  //init relay pin
  #if RLYPIN >= 0
    pinMode(RLYPIN, OUTPUT);
    #if RLYMDE
      digitalWrite(RLYPIN, bri);
    #else
      digitalWrite(RLYPIN, !bri);
    #endif
  #endif

  //disable button if it is "pressed" unintentionally
#ifdef BTNPIN
  if(digitalRead(BTNPIN) == LOW) buttonEnabled = false;
#else
  buttonEnabled = false;
#endif
}


void initAP(){
  bool set = apSSID[0];
  if (!set) strcpy(apSSID,"WLED-AP");
  WiFi.softAPConfig(IPAddress(4, 3, 2, 1), IPAddress(4, 3, 2, 1), IPAddress(255,255,255,0));
  WiFi.softAP(apSSID, apPass, apChannel, apHide);
  if (!set) apSSID[0] = 0;
}


void initCon()
{
  WiFi.disconnect(); //close old connections

  if (staticIP[0] != 0)
  {
    WiFi.config(staticIP, staticGateway, staticSubnet, IPAddress(8,8,8,8));
  } else
  {
    WiFi.config(0U, 0U, 0U);
  }

  if (strlen(apSSID)>0)
  {
    DEBUG_PRINT(" USING AP");
    DEBUG_PRINTLN(strlen(apSSID));
    initAP();
  } else
  {
    DEBUG_PRINTLN(" NO AP");
    WiFi.softAPdisconnect(true);
  }
  int fail_count = 0;
  if (strlen(clientSSID) <1 || strcmp(clientSSID,"Your_Network") == 0)
    fail_count = apWaitTimeSecs*2; //instantly go to ap mode
  #ifndef ARDUINO_ARCH_ESP32
   WiFi.hostname(serverDescription);
  #endif
   WiFi.begin(clientSSID, clientPass);
  #ifdef ARDUINO_ARCH_ESP32
   WiFi.setHostname(serverDescription);
  #endif
  unsigned long lastTry = 0;
  bool con = false;
  while(!con)
  {
    yield();
    handleTransitions();
    handleButton();
    handleOverlays();
    if (briT) strip.service();
    if (millis()-lastTry > 499) {
      con = (WiFi.status() == WL_CONNECTED);
      lastTry = millis();
      DEBUG_PRINTLN("C_NC");
      if (!recoveryAPDisabled && fail_count > apWaitTimeSecs*2)
      {
        WiFi.disconnect();
        DEBUG_PRINTLN("Can't connect. Opening AP...");
        onlyAP = true;
        initAP();
        return;
      }
      fail_count++;
    }
  }
}


bool checkClientIsMobile(String useragent)
{
  //to save complexity this function is not comprehensive
  if (useragent.indexOf("Android") >= 0) return true;
  if (useragent.indexOf("iPhone") >= 0) return true;
  if (useragent.indexOf("iPod") >= 0) return true;
  if (useragent.indexOf("iPad") >= 0) return true;
  return false;
}