#include <DHTesp.h>

int trigger=4;
int echo=2;

DHTesp venmathi;
TempAndHumidity data;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);

  pinMode(trigger, OUTPUT);
  pinMode(echo, INPUT);
  pinMode(17, OUTPUT);
  pinMode(16, OUTPUT);
  pinMode(5, OUTPUT);

 venmathi.setup(15, DHTesp::DHT22);
}

int finding_distance(){
  digitalWrite(trigger, HIGH);
  delay(100);
  digitalWrite(trigger, LOW);
  float a=pulseIn(echo, HIGH);
  return(a*0.034/2);
}
void loop() {
  int distance=finding_distance();
  Serial.println(distance);
  data = venmathi.getTempAndHumidity();
  float temp=data.temperature;
  float humi=data.humidity;
  Serial.println(data.temperature);
  Serial.println(data.humidity);

  if(distance>=300 && temp<=30 && humi>=70){
    digitalWrite(5, HIGH);
    digitalWrite(16, LOW);
    digitalWrite(17, LOW);
    Serial.println("You are safe");
  }
  else if((distance<300)&&(distance>200) && (temp<70)&&(temp>30) && (humi<70)&&(humi>30)){
    digitalWrite(16, HIGH);
    digitalWrite(5, LOW);
    digitalWrite(17, LOW);
    Serial.println("You are unsafe");
  }
  else if(distance<=200 && temp>=70 && humi<=30){
    digitalWrite(17, HIGH);
    digitalWrite(16, LOW);
    digitalWrite(5, LOW);
    Serial.println("You are in danger");
    }
    else{
      digitalWrite(5, LOW);
      digitalWrite(16, LOW);
      digitalWrite(17, LOW);
      Serial.println("Invalid");
    }
  delay(1000);
  }