#include <ESP8266WiFi.h>
#include <WiFiClient.h>

// Time to sleep (in seconds):
const int sleepTimeS = 10;

// WiFi information
const char WIFI_SSID[] = "Livebox-37cc";
const char WIFI_PSK[] = "8A6060920A8A86896F770F2C47";


// Remote site information
const char http_site[] = "192.168.0.10";
const int http_port = 8080;

// Pin definitions
const int LED_PIN = 0;

#define DEBUG true

// Global variables
WiFiClient client;

void setup() {
  
  // Set up serial console to read web page
  Serial.begin(9600);
  Serial.print("Thing GET Example");
  
  // Set up LED for debugging
  pinMode(LED_PIN, OUTPUT);

}

void loop() {

    int lum = analogRead(2);

    // If the server has disconnected, stop the client and WiFi
  if ( !client.connected() ) {
    // Connect to WiFi
    connectWiFi();
    
    // Attempt to connect to website
    if ( !getPage("/json.htm?type=command&param=udevice&idx=294&svalue=" + String(lum)) ) {
      Serial.println("GET request failed");
    }
    while(!client.available()){
      delay(10);
    }
    
//    // If there are incoming bytes, print them
//    while ( client.available() ) {
//      char c = client.read();
//      Serial.print(c);
//    }

  String ret = recoitDuESP8266WithJson(10000, "status");
  debugPrintln("** ret=" + ret);

    Serial.println();
    
    // Close socket and wait for disconnect from WiFi
    client.stop();
    if ( WiFi.status() != WL_DISCONNECTED ) {
      WiFi.disconnect();
    }
    
    // Turn off LED
    digitalWrite(LED_PIN, LOW);
    
    // Do nothing
    Serial.println("Finished Thing GET test");
   // while(true){
    //  delay(30000);
    //}
  }
  WiFi.forceSleepBegin();
  delay(10000);
  
//  WiFi.deepSleep(sleepTimeS * 1000000);


  WiFi.forceSleepWake();
}

// Attempt to connect to WiFi
void connectWiFi() {
  
  byte led_status = 0;
  
  // Set WiFi mode to station (client)
  WiFi.mode(WIFI_STA);
  
  // Initiate connection with SSID and PSK
  WiFi.begin(WIFI_SSID, WIFI_PSK);
  
  // Blink LED while we wait for WiFi connection
  while ( WiFi.status() != WL_CONNECTED ) {
    digitalWrite(LED_PIN, led_status);
    led_status ^= 0x01;
    delay(100);
  }
  
  // Turn LED on when we are connected
  digitalWrite(LED_PIN, HIGH);
}
/****************************************************************/
/*Fonction qui lit et affiche les messages envoyés par l'ESP8266*/
/****************************************************************/
String recoitDuESP8266WithJson(const int timeout, String jsonId)
{
  String ret = "";
  String reponse = "";
  boolean found = false;
  long int time = millis();
  while ( (time + timeout) > millis())
  {
    while (client.available())
    {
      //reponse = "";
      char c = client.read();
      reponse += c;
      //reponse.trim();
      if (reponse.equalsIgnoreCase(jsonId)) {
        debugPrint("Trouve" + reponse + " " + jsonId);
      }
      if (c == 10 || c == 13 || reponse.length() > 80) {
        reponse.trim();
        // debugPrint(reponse);
        int p = reponse.indexOf(':');
        String id = reponse.substring(0, p);
        String value = reponse.substring(p + 1, reponse.length() - 1);
        id.trim();
        value.trim();
        id.replace("\"", "");
        value.replace("\"", "");

        if (id.equalsIgnoreCase(jsonId) && !found) {
          debugPrintln("========> Trouve " + jsonId + " == " + value);
          ret = value;
          found = true;
        } else {
          //debugPrintln(id + " " + value);
        }
        reponse = "";
      }
    }
  }
  //debugPrintln(reponse);
  return ret;
}

/****************************************************************/
/*Fonction qui lit et affiche les messages envoyés par l'ESP8266*/
/****************************************************************/
void recoitDuESP8266(const int timeout)
{
  String reponse = "";
  long int time = millis();
  while ( (time + timeout) > millis())
  {
    while (client.available())
    {
      char c = client.read();
      reponse += c;
    }
  }
  debugPrintln(reponse);
}

// Perform an HTTP GET request to a remote page
bool getPage(String page) {
  
  // Attempt to make a connection to the remote server
  if ( !client.connect(http_site, http_port) ) {
    return false;
  }
  
  // Make an HTTP GET request
  
  client.println("GET " + page + " HTTP/1.1");
  client.print("Host: ");
  client.println(http_site);
  client.println("Connection: close");
  client.println();
  
  return true;
}

void debugPrint(String m) {
#ifdef DEBUG
  Serial.print(m);
#endif

}
void debugPrintln(String m) {
#ifdef DEBUG
  Serial.println(m);
#endif

}