#include <SoftwareSerial.h>
#include "DHT.h"

/** DHT **/
#define DHTPIN 5
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);

/** ESP8266 **/
String ssid = "Livebox-37cc";
String key = "8A6060920A8A86896F770F2C47";
String serverHost = "192.168.0.10";
String serverPort = "8080";

SoftwareSerial esp8266(10, 11); // RX, TX
bool done = false;

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

  /** DHT **/
  dht.begin();
  Serial.println("1");
  /** ESP8266 **/
  esp8266.begin(9600);
  delay(500);
  esp8266.println("AT+RST");
Serial.println("2");
  /**
   * Initialisation
   */
  delay(1000);
  esp8266.println("AT");
  done = esp8266.find("OK");
  if(!done){
    delay(1000);
    done = esp8266.find("OK");
  }
Serial.println(done);
  /**
   * Se mettreen mode CLIENT
   */
  esp8266.println("AT+CWMODE=1");
  done = esp8266.find("OK");
  if(!done){
    delay(1000);
    done = esp8266.find("OK");
  }
Serial.println(done);
  /**
   * Connexion auWifi
   */
  esp8266.println("AT+CWJAP=\""+ssid+"\",\""+key+"\"");
  done = esp8266.find("OK");
  while(!done){
    delay(1000);
    done = esp8266.find("OK");
  }
Serial.println(done);
  /**
   * Se mettre en mode multiple connexions
   */
  esp8266.println("AT+CIPMUX=1");
  done = esp8266.find("OK");
  if(!done){
    delay(1000);
    done = esp8266.find("OK");
  }
Serial.println(done);
  /**
   * Récupération de l'adresse IP
   */
  esp8266.println("AT+CIFSR");
  done = esp8266.find("STAIP");
  if(!done){
    delay(1000);
    done = esp8266.find("OK");
  }
Serial.println(done);
}

void loop() {
  int maxLoops = 5;

  /**
   * DHT11 : Temperature
   */

  float temperature = dht.readTemperature();
  if( isnan(temperature) ){
   // return;
   temperature = 19;
  }
  // convert float --> String
  String temperatureStr = "";
  char temperatureChar[15];
  dtostrf(temperature,5,2,temperatureChar);
  temperatureStr = temperatureChar;

  /**
   * HTTP GET
   */
  String cmd = "AT+CIPSTART=4,\"TCP\",\""+serverHost+"\","+serverPort;
  esp8266.println(cmd);
  delay(500);
  done = esp8266.find("OK");
  int currentLoop = 0;
  while(!done){
    delay(500);
    done = esp8266.find("OK");
    if(currentLoop >= maxLoops){
      break;
    }
    currentLoop++;
  }

  String url = "/lda/index.php/data/createdatajson/append?datflval="+
    temperatureStr +
    "&thing=FIRST";
  String cmdGET = "GET " + url + " HTTP/1.1\r\n"+
    "Host: "+serverHost+"\r\nUser-Agent: ESP8266_HTTP_Client\r\nConnection: close\r\n\r\n";
  esp8266.print("AT+CIPSEND=4,");
  esp8266.println(cmdGET.length());
  delay(1000);
  done = esp8266.find(">");
  currentLoop = 0;
  while(!done){
    delay(500);
    done = esp8266.find(">");
    if(currentLoop >= maxLoops){
      break;
    }
    currentLoop++;
  }
  esp8266.println(cmdGET + "\r\n\r\n");
  delay(1000);

  esp8266.println("AT+CIPSTATUS");
  delay(1000);

  // Fermeture de toutes les connexions
  esp8266.println("AT+CIPCLOSE=5");
  delay(1000);

  // repart à zero
  esp8266.println("AT");

  // 4 secondes sont déjà passées
  delay(16000);

}