#include <string.h>
#include <stdlib.h>
#include <Arduino.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include "DHT.h"

#define ESSID "wa-v101f"
//#define ESSID "waredmi"
#define REDLED 12
#define GREENLED 14 

#define DHTPIN 4
#define DHTTYPE DHT22

//OneWire oneWire(4);
OneWire oneWire2(5);
//DallasTemperature sensorin(&oneWire);
DallasTemperature sensorout(&oneWire2);
DHT dht(DHTPIN, DHTTYPE);

const char * essids[10];
const char * passwords[10];

void wifi_essids_setup()
{
  essids[0] = "wa-v101f";
  essids[1] = "HZSOL-WRK";
  essids[2] = "waredmi";
  essids[3] = "walley";
  essids[4] = "grezl";
  

  passwords[0] = "aaaaaaaaa";
  passwords[1] = "HZSOL231wpa";
  passwords[2] = "aaaaaaaaa";
  passwords[3] = "aaaaaaaaa";
  passwords[4] = "aaaaaaaaa";
}

int find_wifi()
{
  int i,ii;

  Serial.println("* WIFI *");

  for (i = 0; i < 5; i++)
  {
    Serial.print("trying ");
    Serial.print(essids[i]);
    Serial.print(":");
    Serial.println(passwords[i]);

    WiFi.begin(essids[i], passwords[i]);

    if((WiFi.waitForConnectResult() == WL_CONNECTED)) {
      Serial.println("FOUND");
      return 1;
    } else {
      Serial.println("NOPE");
      WiFi.disconnect();
    }
  }
  Serial.println("couldn't find a shit");
  return 0;
}

int send_data(char * data)
{
  HTTPClient http;

  Serial.print("[HTTP] begin\n");
  http.begin("http://grezl.eu/wiot/v1/sensor");

  Serial.print("[HTTP] POST\n");
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  int http_code = http.POST(data);
  //http.writeToStream(&Serial);
 
  Serial.printf("[HTTP] http code: %d\n", http_code);
  if (http_code > 0) {
 /*   if (http_code == HTTP_CODE_OK) {
      String payload = http.getString();
      Serial.println(payload);
    }
 */
  } else {
    Serial.printf("[HTTP] failed, error: %s\n", http.errorToString(http_code).c_str());
  }
  
  http.end();
  return http_code;
}

void ledblink(int led)
{
  digitalWrite(led, HIGH);  
  delay(100);
  digitalWrite(led, LOW);
} 

void create_line(char * type, char * sn, char * data, float value, float value2)
{
  char buf[12];

  strcpy(data, "w_sensor=");

  strcat(data, "type:DS,");
  strcat(data, "sn:");
  strcat(data, sn);
  strcat(data, ",");
  strcat(data, "temp:");
   
  dtostrf(value, 5, 2, buf);
  strcat(data, buf);

  if (value2 > -127) {
    strcat(data, ",");
    strcat(data, "hum:");
    dtostrf(value2, 5, 2, buf);
    strcat(data, buf);
  }
  strcat(data, ";");

}

void setup() {
  pinMode(GREENLED, OUTPUT);
  pinMode(REDLED, OUTPUT);

  wifi_essids_setup();
  
  ledblink(GREENLED);
  ledblink(REDLED);

  Serial.begin(115200);
   // Serial.setDebugOutput(true);

  Serial.println("Start");

//  sensorin.begin();
  sensorout.begin();
//  WiFi.persistent(false);
  WiFi.mode(WIFI_STA);
  find_wifi();
  //WiFi.begin(ESSID, "aaaaaaaaa");
}

void loop() {
  float tempin,tempout;
  char datain[60]; 
  char dataout[60]; 
  float dht_h;
  float dht_t;
  
  Serial.println("Requesting temperatures... ");

  dht_h = dht.readHumidity();
  dht_t = dht.readTemperature();

//  sensorin.requestTemperatures();
  sensorout.requestTemperatures();

  Serial.println(dht_h);
  Serial.println(dht_t);
   //  Serial.println(sensorin.getTempCByIndex(0));  
  Serial.println(sensorout.getTempCByIndex(0));  

  Serial.println("DONE ");

//  tempin = sensorin.getTempCByIndex(0);
  tempout = sensorout.getTempCByIndex(0);

//  create_line("x","ds0", datain, tempin);
  create_line("x","ds0", datain, dht_t, dht_h);
  create_line("x","ds1", dataout, tempout, -127.0);
  Serial.println(datain);
  Serial.println(dataout);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  if((WiFi.status() == WL_CONNECTED)) {
    send_data(datain);
    send_data(dataout);
    ledblink(GREENLED);
  } else {
    Serial.println("Not connected.");
    ledblink(REDLED);
  }
  delay(20000);
  //delay(1000);
}