/**
 * Example for reading temperature and humidity
 * using the DHT22, DS18B20 and ESP8266
 *
 */

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <ESP8266HTTPUpdateServer.h>
#include <time.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP280.h>
#include "Wire.h"
#include "DHT.h"
#include "Adafruit_SI1145.h"



#define DHTPIN 14     // what digital pin the DHT22 is conected to
#define DHTTYPE DHT22   // there are multiple kinds of DHT sensors
#define ONE_WIRE_BUS 2  // DS18B20 on ESP2866 pinX corresponds to D4 on physical board
#define SDAI2CPIN       4          // GPIO4   I2C SDA bus (D2 psyhical)
#define SCLI2CPIN       5          // GPIO5   I2C SCL bus (D1 psyhical)
#define BMP280ADDR      0x76       // Set BMP280 I2C address
#define SI1145ADDR      0x60       // Set BMP280 I2C address

DHT dht(DHTPIN, DHTTYPE);
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
Adafruit_BMP280 bmp280; // I2C
Adafruit_SI1145 uv  = Adafruit_SI1145(0x60);

const char* ssid     = "AP_";
const char* password = "******";
const char* hostesp = "pws-webupdate";
const char* update_path = "/firmware";
const char* update_username = "****";
const char* update_password = "****";
const char* host = "****";
const char* fingerprint = "****";
#define PASSCODE "****"
#define SENDDELAY 15
int triggersend=0;
int timezone = 1;
int dst = 0;

ESP8266WebServer httpServer(80);
ESP8266HTTPUpdateServer httpUpdater;

void setup() {
  Serial.println("Device Started");
  Serial.println("-------------------------------------");
  Serial.begin(9600);
  delay(10);
  Serial.print("Initializing BME280: ");
  Wire.begin(SDAI2CPIN, SCLI2CPIN);
  bmp280.begin(BMP280ADDR);
  uv.begin();
  Serial.print("Initializing DHT22: ");
  dht.begin();
  Serial.println();
  Serial.print("Initializing DS18B20: ");
  sensors.begin();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  digitalWrite(2, HIGH);
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());

  configTime(timezone * 3600, dst, "pool.ntp.org", "time.nist.gov");
  Serial.println("\nWaiting for time");
  while (!time(nullptr)) {
    Serial.print(".");
    delay(1000);
  }
  Serial.println("");

  httpUpdater.setup(&httpServer, update_path, update_username, update_password);
  MDNS.begin(hostesp);
  httpServer.begin();

  MDNS.addService("http", "tcp", 80);
  Serial.printf("HTTPUpdateServer ready! Open http://%s.local%s in your browser and login with username '%s' and password '%s'\n", hostesp, update_path, update_username, update_password);

}


void loop(){
    httpServer.handleClient();
    delay(5000);

    float t = dht.readTemperature();    // Get temperature (in C) from DHT22 sensor
    float h = dht.readHumidity();     // Get humidity (in %) from DHT22 sensor
    float tDS18B20 = sensors.getTempCByIndex(0);
    float pres = bmp280.readPressure();
    float tempBMP = bmp280.readTemperature();
    float SeaPressure;

      Serial.print("Temp: ");
      Serial.print(t);
      Serial.print("C     ");
      Serial.print("Hum: ");
      Serial.print(h);
      Serial.println("%     ");
      sensors.requestTemperatures();
      Serial.print("TempDS18B20: ");
      Serial.print(tDS18B20);
      //Serial.print(DS18B20.getTempCByIndex(0));
      Serial.println("C");
      Serial.print("TempBMP280: ");
      Serial.print(tempBMP);
      Serial.println("C");
      Serial.print("Pressure: ");
      SeaPressure = (pres / pow(1.0 - 0.0065 * 673 / (tempBMP + 273.15), 5.255))/100 ; // ICAO formula
      Serial.print(SeaPressure);
      Serial.println("hPa");
      Serial.print("Vis: "); Serial.println(uv.readVisible());
      Serial.print("IR: "); Serial.println(uv.readIR());
      float UVindex = uv.readUV();
      UVindex /= 100.0;
      Serial.print("UV: ");  Serial.println(UVindex);


    Serial.print("Send in: ");
    Serial.print(SENDDELAY-triggersend);
    Serial.println("secs  ");
    triggersend++;

    // After 120 seconds, or 2 minutes, elapse, send the data through ESP8266.
    if(triggersend == SENDDELAY){
      sendData(); // Call function to send data to Thing Speak.
      triggersend = 0;
    }
  }


void sendData() {

  Serial.print("Connecting to ");
  Serial.println(host);

  // Use WiFiClient class to create TCP connections
  WiFiClientSecure client;
   if (!client.connect(host, 443)) {
    Serial.println("Connection failed");
    return;
  }

  if (client.verify(fingerprint, host)) {
    Serial.println("certificate matches");
  } else {
    Serial.println("certificate doesn't match");
  }

  // We now create a URI for the request
  String url = "/meteo/posielamudaje.php?code=";
         url += PASSCODE;
         url += "&h=";
         url += dht.readHumidity();
         url += "&t=";
         url += dht.readTemperature();
         url += "&p=";
         url += ((bmp280.readPressure() / pow(1.0 - 0.0065 * 673 / (bmp280.readTemperature() + 273.15), 5.255))/100);
         url += "&t1=";
         url += bmp280.readTemperature();
         url += "&t2=";
         url += sensors.getTempCByIndex(0);

  //Serial.print("Requesting URL: ");
  Serial.println(host + url);


  // This will send the request to the server
 client.print(String("GET ") + url + " HTTP/1.1\r\n" +
                      "Host: " + host + "\r\n" +
                      "User-Agent: ESP8266/1.0\r\n" +
                      "Connection: close\r\n\r\n");
  delay(100);

  // Read all the lines of the reply from server and print them to Serial

while(client.connected()){
String line = client.readString();
  //String line = client.readStringUntil('\n');
  Serial.println(line);
 }
 client.stop();
}