// EmonLibrary examples openenergymonitor.org, Licence GNU GPL V3

#include "EmonLib.h"                   // Include Emon Library
EnergyMonitor emon_conso;                   // Create an instance
EnergyMonitor emon_solar; 

#include <ESP8266WiFiMulti.h>
ESP8266WiFiMulti WiFiMulti;

#define NB_MESURES  50 

const uint16_t port = 81;
const char * host = "192.168.1.3"; // ip or dns

int lectures = -10;
double sum_conso = 0;
double sum_solar = 0;


void setup()
{  
  Serial.begin(9600);
  
  emon_conso.current(0, 60);             // Current: input pin, calibration.
  emon_solar.current(1, 60);
  
    // We start by connecting to a WiFi network
  WiFi.mode(WIFI_STA);
  WiFiMulti.addAP("Livebox-37cc", "8A6060920A8A86896F770F2C47");

  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());

  delay(500);
  
}

void loop()
{
  double Irms_conso = emon_conso.calcIrms(1480);  // Calculate Irms_conso only
  double Irms_solar = emon_solar.calcIrms(1480);  // Calculate Irms_conso only

  lectures ++;
  
  Serial.print(Irms_conso*230.0);	       // Apparent power
  Serial.print(" ");
  Serial.println(Irms_conso);		       // Irms_conso

  Serial.print(Irms_solar*230.0);         // Apparent power
  Serial.print(" ");
  Serial.println(Irms_solar);    
  
  delay(10);
  if (lectures > 0) {
    sum_conso += Irms_conso;
    sum_solar += Irms_solar;

    if (lectures == NB_MESURES) { 
      envoieDomoticz("1053",String(sum_conso / lectures)); // intensite
      delay(500);
      envoieDomoticz("1086",String(sum_solar / lectures)); // intensite
      
      lectures = -10;
      sum_conso = 0;
      delay(2000);
    }
  }
  
}

void envoieDomoticz(String IDX, String Svalue) {

     
    Serial.print("connecting to ");
    Serial.println(host);

    // Use WiFiClient class to create TCP connections
    WiFiClient client;

    if (!client.connect(host, port)) {
        Serial.println("connection failed");
        Serial.println("wait 5 sec...");
        delay(5000);
        return;
    }

    // This will send the request to the server
    client.print("GET /json.htm?type=command&param=udevice&idx="+IDX+"&nvalue=0&svalue=" + Svalue);
    client.println(" HTTP/1.1");
    client.println("Host: 192.168.1.3:81");
    client.println("User-Agent: Arduino-ethernet");
    client.println("Connection: close");
    client.println();
    //read back one line from server
    String line = client.readStringUntil('\r');
    Serial.println("----------------------------------------------");
    Serial.println(line);
    Serial.println("----------------------------------------------");

    //Serial.println("closing connection");
    client.stop();
    
    delay(500);
}

String getVariableValue(String idx)
{
  

  String separator  = ",";
  int nb            = 0;

  WiFiClient client;

  if (client.connect(host, port)) {
    Serial.println("Connected to domoticz");

    client.print("GET /json.htm?type=command&param=getuservariable&idx=" + idx);
    client.println(" HTTP/1.1");
    client.println("Host: 192.168.1.3:81");
    client.println("User-Agent: Arduino-ethernet");
    client.println("Connection: close");
    client.println();
    
    // Read the first line of the request
    String ret = "";
    while (1) {
      String req = client.readStringUntil('\n');
      if (req.indexOf("Value") != -1) {
        ret = req.substring(req.indexOf("Value"));
        Serial.println("Idx=" + idx + " Value " + ret);

        break;
      }
      if (req == "" || nb > 500) {
        break;
      }
      nb++;
    }
    client.stop();
    delay(100);
    return ret;
  }
}