#include <TinyGPS++.h>
#include <SoftwareSerial.h>
#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>
static const int RXPin = 6, TXPin = 7;
static const uint32_t GPSBaud = 9600;
const char* ssid     = "Banyustudio";
const char* password = "4llahMahaKaya9900*#";
#define FIREBASE_HOST "landslidepad-6c940.firebaseio.com"
#define FIREBASE_AUTH "c7dsqqiinizfMQAkkqBIMfqkmQ9iskIhaDiiEC1f"
TinyGPSPlus gps;
WiFiClient  client;
SoftwareSerial ss(RXPin, TXPin);
void setup()
{
  Serial.begin(115200);
  ss.begin(GPSBaud);
  Serial.println(F(":App Started"));
  Serial.println(F("Realtime GPS data IoT"));
  Serial.print(F("GPS Started"));
  Serial.println(TinyGPSPlus::libraryVersion());
  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");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  Serial.print("Netmask: ");
  Serial.println(WiFi.subnetMask());
  Serial.print("Gateway: ");
  Serial.println(WiFi.gatewayIP());
  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
}
void loop()
{
  displayInfo();
  yield();
  smartDelay(5000);
}
static void smartDelay(unsigned long ms) {
  unsigned long start = millis();
  do {
    while (ss.available())
      gps.encode(ss.read());
  } while (millis() - start < ms);
}
void displayInfo()
{
  if (gps.location.isValid())
  {
    const double TOWER_LAT = -7.441299;
    const double TOWER_LNG = 109.211704;
    double latitude = (gps.location.lat());
    double longitude = (gps.location.lng());
    double distanceM = gps.distanceBetween(TOWER_LAT, TOWER_LNG, latitude, longitude) / 10;
    Serial.print("Jarak titik: ");
    Serial.println(distanceM);
    Serial.print(" meter");
    Serial.println("");
    String latbuf;
    latbuf += (String(latitude, 6));
    Serial.print("lat : ");
    Serial.print(latbuf);
    Serial.println();
    String lonbuf;
    lonbuf += (String(longitude, 6));
    Serial.print("lon : ");
    Serial.print(lonbuf); Serial.println();
    if (Firebase.failed()) {
      Serial.println("Firebase get failed");
      Serial.println(Firebase.error());
      return;
    } else {
      Firebase.setFloat("Lat", latitude);
      Serial.println("mengirim data latitude : ");
      Serial.println();
      Firebase.setFloat("Lon", longitude);
      Serial.println("mengirim data longitude : ");
      Firebase.setFloat("Distance", distanceM);
      Serial.println("mengirim data distance : ");
      if (distanceM >= 0.3) {
        Serial.println("status bahaya : ");
        Firebase.set("Status", "Bahaya");
      } else if (distanceM >= 0.2) {
        Serial.println("status waspada : ");
        Firebase.set("Status", "Waspada");
      }
      else if (distanceM >= 0.1) {
        Serial.println("status hati-hati : ");
        Firebase.set("Status", "Hati-hati");
      } else {
        Serial.println("status aman : ");
        Firebase.set("Status", "Aman");
      }
    }
    delay(5000);
  }
  else
  {
    Serial.print(F("INVALID"));
  }
  Serial.print(F("  Date/Time: "));
  if (gps.date.isValid())
  {
    Serial.print(gps.date.month());
    Serial.print(F("/"));
    Serial.print(gps.date.day());
    Serial.print(F("/"));
    Serial.print(gps.date.year());
  }
  else
  {
    Serial.print(F("INVALID"));
  }
  Serial.print(F(" "));
  if (gps.time.isValid())
  {
    if (gps.time.hour() < 10) Serial.print(F("0"));
    Serial.print(gps.time.hour());
    Serial.print(F(":"));
    if (gps.time.minute() < 10) Serial.print(F("0"));
    Serial.print(gps.time.minute());
    Serial.print(F(":"));
    if (gps.time.second() < 10) Serial.print(F("0"));
    Serial.print(gps.time.second());
    Serial.print(F("."));
    if (gps.time.centisecond() < 10) Serial.print(F("0"));
    Serial.print(gps.time.centisecond());
  }
  else
  {
    Serial.print(F("INVALID"));
  }
  Serial.println();
}