#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <LiquidCrystal.h>
#include <SPI.h>

#define LED_BUILTIN 14
const int rs = 12, en = 13, d4 = 4, d5 = 0, d6 = 2, d7 = 14;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

const char* ssid = "KSIADZ.ROBAK";
const char* password =  "IoTLabXD";

char ssid2[] = "internal.IOT";     //  your network SSID (name)
char pass2[] = "IoTlab32768";  // your network password
int status = WL_IDLE_STATUS;     // the Wifi radio's status

ESP8266WebServer server(80);

bool hasChanged = false;
int temp = 0;
int counter;


void setup(void)
{
      pinMode(LED_BUILTIN, OUTPUT);
      delay(1000);
      Serial.begin(115200);
      lcd.begin(16,2);
      lcd.print("...");

      int numberOfNetworks = WiFi.scanNetworks();
      for(int i =0; i<numberOfNetworks; i++)
      {
      Serial.print("Network name: ");
      Serial.println(WiFi.SSID(i));
      Serial.print("Signal strength: ");
      Serial.println(WiFi.RSSI(i));
      Serial.println("-----------------------");
      }
 ////////////////////////////////////////////////////
//      WiFi.softAP(ssid, password);
//
//      Serial.println();
//      Serial.print("Server IP address: ");
//      Serial.println(WiFi.softAPIP());
//      Serial.print("Server MAC address: ");
//      Serial.println(WiFi.softAPmacAddress());
//
//      server.on("/", handleRoot);
//      server.begin();
//
//      Serial.println("Server listening");
//
//
//       counter = WiFi.softAPgetStationNum();
 ///////////////////////////////////////////////////////
 if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    // don't continue:
    while (true);
  }
//
  while (status != WL_CONNECTED) {
    Serial.print("Attempting to connect to WPA SSID: ");
    Serial.println(ssid2);
    // Connect to WPA/WPA2 network:
    status = WiFi.begin(ssid2, pass2);

    // wait 10 seconds for connection:
    delay(10000);
  }

  // you're connected now, so print out the data:
  Serial.print("You're connected to the network");
  printWifiData();
}

void loop(void)
{
    server.handleClient();
    if(temp!=counter){
      hasChanged = true;
    }
    if(hasChanged){
      lcd.print("              ");
      lcd.setCursor(0,0);
      lcd.print("connected");
    }
    temp = counter;
    hasChanged = false;
    counter = WiFi.softAPgetStationNum();
    delay(2000);
    lcd.print("              ");
}


///////////
void printWifiData() {
  // print your WiFi shield's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);
  Serial.println(ip);

  // print your MAC address:
  byte mac[6];
  WiFi.macAddress(mac);
  Serial.print("MAC address: ");
  Serial.print(mac[5], HEX);
  Serial.print(":");
  Serial.print(mac[4], HEX);
  Serial.print(":");
  Serial.print(mac[3], HEX);
  Serial.print(":");
  Serial.print(mac[2], HEX);
  Serial.print(":");
  Serial.print(mac[1], HEX);
  Serial.print(":");
  Serial.println(mac[0], HEX);

}




void handleRoot() {
  static bool state;
  server.send(200, "text/html", "<h1>You are connected</h1>");
  if(state) {
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }
  delay(2000);
  state = !state;

}


void handleNotFound(){
  digitalWrite(LED_BUILTIN, 1);
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET)?"GET":"POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  for (uint8_t i=0; i<server.args(); i++){
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);
  digitalWrite(LED_BUILTIN, 0);
}