#include <ArduinoJson.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include "Esp.h"

const char* ssid = "unoffice";
const char* password = "15eb9a233199";

const char* host = "energymonitor.xyz";
String lineX="";


//*Inicialização de vars para conexão
HTTPClient http;
WiFiClient client;

//Arrays b_cell e t_cell
int b_cell[24][4];
int t_cell[2][4];


void setup() {
  Serial.begin(115200);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);


  WiFi.mode(WIFI_STA);
  if(WiFi.status() != WL_CONNECTED) {
    connectWiFi();
  }

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





}

void loop() {
    if(WiFi.status() == WL_CONNECTED) {
    Serial.println(ESP.getFreeHeap());
    httpget();
    delay(3000);
    Serial.println(lineX);
    //JSON
    delay(3000);
    //WORKING: parseJson("{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}");
    //NOT WORKING (below):
    parseJson(lineX);
    delay(4000);
    Serial.println(b_cell[1][1]);
    Serial.println(ESP.getFreeHeap());
    delay(100);
  }

}


/*
 * connectWifi: Connect to WiFi and counterPanic
 */

void connectWiFi(void){
  int counterPanic = 0;
  while (WiFi.status() != WL_CONNECTED) {
    WiFi.begin(ssid, password);
    delay(3000);
    counterPanic++;
    Serial.println("Counter Panic:");
    Serial.println(counterPanic);
    if(counterPanic>8){
    ESP.restart();
    }
  }

}

/*
 * httpget
 */
void httpget(){

  int lineNo=0;
  const int httpPort = 80;
  String url = "/feedback-esp3/fbdata3.json";
  //String url = "/feedback-esp/fbdataino3.json";
 if(WiFi.status() != WL_CONNECTED) {
    connectWiFi();
  }
  Serial.println("WiFi connected");


  // Use WiFiClient class to create TCP connections
  if (!client.connect(host, httpPort)) {
    Serial.println("Connection to HTTP: FAILED!");
    client.stop();
    delay(1000);
    ESP.restart();
  }else{
   client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Connection: close\r\n\r\n");
  delay(1000);
  Serial.println("Connection to HTTP: OK!");
  }

  // Read all the lines of the reply from server and print them to Serial
  while(client.available()){
    //lines[lineNo] = client.readStringUntil('\r');
    //lineNo=lineNo+1;
    lineX = client.readStringUntil('\n');
    //Serial.println(line);
  }
  Serial.println();
  Serial.println("closing connection");
  client.stop();


}


void parseJson(String lineX2){
  lineX2.trim();
  //Ajustar o valor do StaticJsonBuffer<SIZE> @ github: bblanchon/ArduinoJson/wiki/Memory-model
  StaticJsonBuffer<3000> jsonBuffer;
  JsonObject& root = jsonBuffer.parseObject(lineX2);

  if (!root.success()) {
    Serial.println("parseObject() failed");
    //return;
  }

  //String updated = root["updated"];
  //Serial.println(updated);
  for (int i=1;i<28;i++){
  String aux = "b_led"+String(i);
  Serial.println(aux);
  String datex = root["data"][0][aux];

  if (datex.length()>0){
  Serial.println(datex);
  mySplit(datex,i,0);


  delay(500);
  }


  }


}



/*
 * split & Organize b_cell & t_cell
 * id=0 => b_cell
 * id=1 => t_cell
 */

void mySplit(String input, int index, int id){
  int sep1 = input.indexOf(',');
  int sep2 = input.indexOf(',');
  int sep3 = input.indexOf(',');

  int a = (input.substring(0,sep1)).toInt();
  int r = (input.substring(sep1+1,sep2)).toInt();
  int g = (input.substring(sep2+1,sep3)).toInt();
  int b = (input.substring(sep3+1)).toInt();

    if (id==0){
      b_cell[index][1]=a;
      b_cell[index][2]=r;
      b_cell[index][3]=g;
      b_cell[index][4]=b;
    }

    if (id==1){
      t_cell[index][1]=a;
      t_cell[index][2]=r;
      t_cell[index][3]=g;
      t_cell[index][4]=b;
    }

}