#include <SoftwareSerial.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>

SoftwareSerial ESPserial(13, 15); // Software Serial

ESP8266WiFiMulti WiFiMulti; // WiFi Multi Class
WiFiClient client; // We will used client connection with HUE BRIDGE

// data for bridge connection
const uint16_t port = 80;
const char * host = "192.168.1.150"; // BRIDGE IP
String url = "/api/6Rhc-zJoImVo0fZBkcHCrY0LhNs9uI9h1kijKCI0/lights/2/state"; //URL with Hue username and light number

// data for bulb control
// bulbON
String hueon = "{\"on\":true}";
int onlength = hueon.length();
// bulbOFF
String hueoff = "{\"on\":false}";
int offlength = hueoff.length();
// bulbBright
int numberbri = 0;
String huebri = "{\"bri\":" + String(numberbri) + "}";
int brilength = huebri.length();
//bulbSaturation
int numbersat = 0; // insert saturation here
String huesat = "{\"sat\":" + String(numbersat) + "}";
int satlength = huesat.length();

bool onoff;
int bright, bright_temp = - 69;
int saturation, saturation_tmp = -69;
double x,x_tmp=-69;
double y,y_tmp=-69;
double colorx = 0.00392;
double colory = 0.00392;
double numberx = 0;
double numbery = 0;
bool flag = false, flag2 = false;

void setup() {
    Serial.begin(57600);// Begin the Serial at 9600 Baud
    wificonnection();
    ESPserial.begin(57600);
}
void loop() {

  Serial.print("brigt 0:   ");
  Serial.println(bright);
  if (ESPserial.available())
  {
    readInputValues();
  }

  if (onoff == 1 && !flag)
  {
     switchOnLightBulb();
   }
  else if (onoff == 0 && !flag2)
  {
     switchOffLightBulb();
  }

  Serial.print("brigt 1:    ");
  Serial.println(bright);
  setBrightOfTheFuckingBulbLightBulb();
  Serial.print("brigt 2:    ");
  Serial.println(bright);
  setSaturationOfTheFuckingBulbLightBulb();
  setColorOfTheFuckingBulbLightBulb();

  delay(1000);
}

 void wificonnection(){ // Funtion to connect with local WiFi
    WiFiMulti.addAP("mieszkanie", "77579959");
    // We can add more network here becouse we use WiFiMulti.
    Serial.println();
    Serial.println();
    Serial.print("Wait for WiFi... ");

    while(WiFiMulti.run() != WL_CONNECTED) {
        Serial.print(".");
        delay(500);
    }

    Serial.println("");
    Serial.println("WiFi connected");
    Serial.println("IP address: ");
    Serial.println(WiFi.localIP());
    Serial.println();

    delay(500);
}

 void clientconnection(){ // We connecting to the specific IP Adress and port
  if (!client.connect(host, port)) {
        Serial.println("connection failed");
        Serial.println("wait 5 sec...");
        delay(5000);
        return;
    }
}

 void readInputValues(){
    Serial.println("readInputValues");

    onoff  = ESPserial.read();
    Serial.print("on off");
    Serial.println(onoff);

    bright  = ESPserial.read();
    Serial.print("bright");
    Serial.println(bright);

    saturation = ESPserial.read();
    Serial.print("saturation");
    Serial.println(saturation);

    x = ESPserial.read();
    Serial.print("x");
    Serial.println(x);

    y = ESPserial.read();
    Serial.print("y");
    Serial.println(y);
    Serial.println();
    Serial.println();
 }

 void switchOnLightBulb(){
      Serial.print("dupa: ");
      Serial.println(onoff);

      clientconnection();
      client.println(String("PUT ") + url + " HTTP/1.1\r\n" +
                  "Host: " + host + "\r\n" +
                  "Connection: keep-alive\r\n" +
                  "Accept: */*\r\n" +
                  "Content-Type: text/plain;charset=UTF-8\r\n" +
                  "Content-Length:" + onlength + "\r\n\r\n" +
                  hueon+"\r\n\r\n");
          flag = true;
          flag2 = false;

 }

 void switchOffLightBulb(){
    Serial.print("cipa: ");
      Serial.println(onoff);
      clientconnection();
      client.println(String("PUT ") + url + " HTTP/1.1\r\n" +
                "Host: " + host + "\r\n" +
                "Connection: keep-alive\r\n" +
                "Accept: */*\r\n" +
                "Content-Type: text/plain;charset=UTF-8\r\n" +
                "Content-Length:" + offlength + "\r\n\r\n" +
                hueoff+"\r\n\r\n");
          flag2 = true;
          flag = false;
  }

 void setBrightOfTheFuckingBulbLightBulb(){
  if (bright_temp != bright)
  {
    bright_temp = bright;
    Serial.println(bright);
    numberbri = bright;
    Serial.print("Number bri = ");
    Serial.println(numberbri);
    String huebri = "{\"bri\":" + String(numberbri) + "}";
    int brilength = huebri.length();
    clientconnection();
    client.println(String("PUT ") + url + " HTTP/1.1\r\n" +
                "Host: " + host + "\r\n" +
                "Connection: keep-alive\r\n" +
                "Accept: */*\r\n" +
                "Content-Type: text/plain;charset=UTF-8\r\n" +
                "Content-Length:" + brilength + "\r\n\r\n" +
                huebri+"\r\n\r\n");
   }
 }

 void setSaturationOfTheFuckingBulbLightBulb(){
    if (saturation_tmp != saturation)
    {
    saturation_tmp = saturation;
    Serial.println(saturation);
    numbersat = saturation;
    Serial.print("Number sat = ");
    Serial.println(numbersat);
    String huesat = "{\"sat\":" + String(numbersat) + "}";
    int satlength = huesat.length();
    clientconnection();
    client.println(String("PUT ") + url + " HTTP/1.1\r\n" +
                "Host: " + host + "\r\n" +
                "Connection: keep-alive\r\n" +
                "Accept: */*\r\n" +
                "Content-Type: text/plain;charset=UTF-8\r\n" +
                "Content-Length:" + satlength + "\r\n\r\n" +
                huesat+"\r\n\r\n");
     }
 }

 void setColorOfTheFuckingBulbLightBulb(){
   if (x_tmp != x || y_tmp != y)
    {
      x_tmp=x;
      y_tmp=y;

      Serial.print("X = ");
    Serial.println(x);
     Serial.print("Y = ");
     Serial.println(y);

      Serial.print("colorx = ");
      Serial.println(colorx,5);
     Serial.print("colory = ");
      Serial.println(colory,5);

      numberx=x*colorx;
      numbery=y*colory;

      Serial.print("po zmianie = ");
      Serial.println(numberx,8);
      Serial.print("po zmianie = ");
      Serial.println(numbery,8);

   String huexy = "{\"xy\":[" + String(numberx) + "," + String(numbery) + "]}";
   int xylength = huexy.length();

      Serial.print("huexy = ");
      Serial.println(huexy);
     Serial.print("xylegth = ");
      Serial.println(xylength);

   clientconnection();
   client.println(String("PUT ") + url + " HTTP/1.1\r\n" +
                 "Host: " + host + "\r\n" +
                 "Connection: keep-alive\r\n" +
                 "Accept: */*\r\n" +
                 "Content-Type: text/plain;charset=UTF-8\r\n" +
                 "Content-Length:" + xylength + "\r\n\r\n" +
                 huexy+"\r\n\r\n");
    }
 }