/*
 * Read multiple One-Wire DS18B20 probes and publish value on Domoticz with HTTP request
 * Lecture multiple de sonde OneWire DS18B20 et plublication des mesures sur un serveur Domoticz requete HTTP
 * Code adapté - Code adaptated 
 * 
 */
#include <OneWire.h>
#include <DallasTemperature.h>
// Pour un ESP32 (le SDK Espressif doit être installé) | For ESP32 (Espressif SDK must be installed) 
//#include <WiFi.h>
//#include <HTTPClient.h>
// Pour une carte ESP8266 | For ESP8266 development board
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <PubSubClient.h>

// Data wire is plugged into port 4 on the Arduino or ESP32
#define ONE_WIRE_BUS A0
#define TEMPERATURE_PRECISION 10

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);

// Tableaux contenant l'adresse de chaque sonde OneWire | arrays to hold device addresses
DeviceAddress insideThermometer = { 0x28,  0x61,  0x64,  0x11,  0xB1,  0x94,  0xAE,  0xC };
//DeviceAddress outsideThermometer = { 0x28,  0xF4,  0xBC,  0x26,  0x0,  0x0,  0x80,  0x2B };

// Parametres WIFI - WiFi settings
#define wifi_ssid "Livebox-37cc"
#define wifi_password "8A6060920A8A86896F770F2C47"

// Paramètres HTTP Domoticz - HTTP Domoticz settings
const char* host = "192.168.1.3";
const int   port = 81;
#define IDX_insideTemp    66
//#define IDX_outsideTemp   31
 
HTTPClient http;

void setup() {
  Serial.begin(9600);

  // Connexion au réseau WiFi, connexion aux sondes
  // Start WiFi connexion and probes
  setup_wifi();           
  sensors.begin();

  // locate devices on the bus
  Serial.print("Locating devices...");
  Serial.print("Found ");
  Serial.print(sensors.getDeviceCount(), DEC);
  Serial.println(" devices.");

  // report parasite power requirements
  Serial.print("Parasite power is: "); 
  if (sensors.isParasitePowerMode()) Serial.println("ON");
  else Serial.println("OFF");

  // Vérifie sir les capteurs sont connectés | check and report if sensors are conneted 
  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); 
//  if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1"); 

  // set the resolution to 9 bit per device
  sensors.setResolution(insideThermometer, TEMPERATURE_PRECISION);
//  sensors.setResolution(outsideThermometer, TEMPERATURE_PRECISION);

  // On vérifie que le capteur st correctement configuré | Check that ensor is correctly configured
  Serial.print("Device 0 Resolution: ");
  Serial.print(sensors.getResolution(insideThermometer), DEC); 
  Serial.println();

// Serial.print("Device 1 Resolution: ");
//  Serial.print(sensors.getResolution(outsideThermometer), DEC); 
//  Serial.println();
}

void printTemperature(String label, DeviceAddress deviceAddress){
  float tempC = sensors.getTempC(deviceAddress);
  Serial.print(label);
  tempC = 25.3;
  if (tempC == -127.00) {
    Serial.print("Error getting temperature");
  } else {
    // Format JSON à respecter pour l'API Domoticz - Domoticz JSON API 
    // /json.htm?type=command&param=udevice&idx=IDX&nvalue=0&svalue=TEMP
    // https://www.domoticz.com/wiki/Domoticz_API/JSON_URL%27s#Temperature
    if ( label == "Inside : " ) {
      String url = "/json.htm?type=command&param=udevice&idx=";
        url += String(IDX_insideTemp);
        url += "&nvalue=0&svalue=";    
        url += String(tempC); 
      sendToDomoticz(url);
    } else {
//      String url = "/json.htm?type=command&param=udevice&idx=";
//        url += String(IDX_outsideTemp);
//        url += "&nvalue=0&svalue=";    
//        url += String(tempC);  
//      sendToDomoticz(url);
    }
  }  
}

void loop() {
  Serial.print("Requesting temperatures...");
  sensors.requestTemperatures();
  Serial.println("DONE");

  // print the device information
  printTemperature("Inside : ", insideThermometer);
//  printTemperature("Outside : ", outsideThermometer);
  
  delay(10000);
}

//Connexion au réseau WiFi
void setup_wifi() {
  delay(10);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(wifi_ssid);

  WiFi.begin(wifi_ssid, wifi_password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connexion OK ");
  Serial.print("=> Addresse IP : ");
  Serial.print(WiFi.localIP());
}


void sendToDomoticz(String url){
  Serial.print("Connecting to ");
  Serial.println(host);
  Serial.print("Requesting URL: ");
  Serial.println(url);
  http.begin(host,port,url);
  int httpCode = http.GET();
    if (httpCode) {
      if (httpCode == 200) {
        String payload = http.getString();
        Serial.println("Domoticz response "); 
        Serial.println(payload);
      }
    }
  Serial.println("closing connection");
  http.end();
}