// https://wokwi.com/projects/348890323831751250

const int buttonPin = 7;  // TEST/ALARM

const int noDHT = 6;
const int lowTemp = 5;

const int ledPin = 12;    // not using the built in LED
int buttonState = 0;
int tempflag = 0;
int noalarm = 1;

int ledState = LOW;
unsigned long previousMillis = 0;
const long interval = 1000;

void setup() {
  pinMode(ledPin, OUTPUT);

// I got no hardware, so these simunlate two fault conditions
  pinMode(noDHT, INPUT_PULLUP);
  pinMode(lowTemp, INPUT_PULLUP);

  Serial.begin(9600);
  delay(500);
  Serial.println(tempflag);
  Serial.println(noalarm);
  Serial.println("Welcome to the Alert System!");
}

void loop() {
  if (noalarm == 0) {
    unsigned long currentMillis = millis();
    if (currentMillis - previousMillis >= interval) {
      // save the last time you blinked the LED
      previousMillis = currentMillis;

      // if the LED is off turn it on and vice-versa:
      if (ledState == LOW) {
        ledState = HIGH;
      } else {
        ledState = LOW;
      }

      // set the LED with the ledState of the variable:
      digitalWrite(ledPin, ledState);
      Serial.println("since noalarm == 0");
    }
  }
  if (noalarm == 1) {
    Serial.println("Alarm is Not Active.  No further action needed");
    //digitalWrite(ledPin, HIGH);
    delay(2000);
    buttonState = digitalRead(buttonPin);
    if (buttonState == HIGH) {
      String PATH_NAME   = "*REDACTED*";
      Serial.println("Pump alert or test button triggered!");
      AlarmOn();
    }//END OF ALARM INIT

    float f = 47.0 - 4.0 * (digitalRead(lowTemp) ? 0.0 : 1.0);
   
    if (!digitalRead(noDHT)) {
      Serial.println(F("Failed to read from DHT sensor!"));
      tempflag++;
      Serial.println(tempflag);
      if (tempflag > 4) {
        String PATH_NAME   = "*REDACTED*";
        Serial.println("DHT sensor failure limit reached!");
        AlarmOn();
      }
    }// END OF TEMP FAIL ALARM
    Serial.print("Current Temperature from sensor:");
    Serial.print(f);
    Serial.print(F("°F"));
    Serial. println();
    if (45.001 > f) {
      String PATH_NAME   = "*REDACTED*";
      Serial.println("Low Temperature detected!");
      AlarmOn();
    }// END OF TEMP LOW ALARM
  }
}

void AlarmOn() {
  //MAKE SURE THAT String PATH is set to the desired email prior to running this function
  Serial.println("Starting alarm...");
  noalarm = 0;

  // connect to web server on port 80:
  Serial.println("Connecting...");


    Serial.println("connection failed");
    Serial.println("Email send failed");

  Serial.println("Starting audio and light alarm...");

  noalarm = 0;
  delay(500);
}