//PINS
int r = 9;
int g = 10;
int b = 11;

int speaker = 4;

int button = 7;
//ANALOG PINS
int photoResistor = 0;
int moisture = 1;
int temperature = 2;

//SENSOR INFO
int currentLight;
int currentTemp;
int currentWater;

//PRIME PLANT INFO
int waterGood;
int lightGood;
int tempGood;

//LOOKING FOR ANY PROBLEMS
bool lightProb = false;
bool tempProb = false;
bool moisProb = false;

void setup() {
  //Initializing pins
  pinMode(r, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(speaker, OUTPUT);

  Serial.begin(9600);

  //wait for the person to move away from all sensors
  delay(1000);
  //set the current values as the optimum.
  tempGood = analogRead(temperature);
  lightGood = analogRead(photoResistor);
  waterGood = analogRead(moisture);
}

void loop() {
  if (digitalRead(button) == 1) { //if the user presses the button the set the current values as the optimum values
    tempGood = analogRead(temperature);
    lightGood = analogRead(photoResistor);
    waterGood = analogRead(moisture);
  }
  currentTemp = analogRead(temperature); //read the temp and set to a variable
  if (currentTemp > (tempGood + 5)) { //to hot
    orange(); //orange light with delay and alarm

    noTone(speaker); //stop the speaker and wait
    delay(300);

    red(); //red light with delay and alarm

    noTone(speaker);
    delay(300);
    tempProb = true; //Let the program know there is a problem
  }
  else if (currentTemp < (tempGood - 5)) { //if its too cold
    orange(); //orange light with delay and alarm

    noTone(speaker); //stop the speaker and wait
    delay(300);

    blue(); //blue light with delay and alarm

    noTone(speaker); //stop the speaker and wait
    delay(300);
    tempProb = true; //let the program know there is a problem
  }
  else { //if it's not too hot, nor too cold
    tempProb = false; //then there is no problem
  }

  currentLight = analogRead(photoResistor); //read the photoresistor and set it to a bariable
  if (currentLight > (lightGood + 100)) { //too bright
    yellow(); //yellow light

    noTone(speaker); //stop speaker
    delay(300);

    red(); //red light

    noTone(speaker); //stop speaker
    delay(300);
    lightProb = true; //problem
  }

  else if (currentLight < (lightGood - 100)) { //too dark
    yellow(); //yellow light

    noTone(speaker); //stop speaker
    delay(300);

    green(); //green light

    noTone(speaker); //stop speaker
    delay(300);
    lightProb = true; //problem
  }
  else { //good light level
    lightProb = false; //no problem
  }

  currentWater = analogRead(moisture); //read the moisture sensor
  if (currentWater > (waterGood + 100)) { //too much water
    blue(); //blue light

    noTone(speaker); //stop speaker
    delay(300);

    red(); //red light

    noTone(speaker); //stop speaker
    delay(300);
    moisProb = true; //problem
  }

  else if (currentWater < (waterGood - 100)) { //too little water
    blue(); //blue light

    noTone(speaker); //stop speaker
    delay(300);

    green(); //green light

    noTone(speaker); //stop speaker
    delay(300);
    moisProb = true; //problem
  }
  else { //if the water level is good
    moisProb = false; //no problem
  }

  if (!moisProb && !lightProb && !tempProb) { //if there are no problems and everthing is dandy
    //turn on the green light
    analogWrite(r, 255);
    analogWrite(g, 0);
    analogWrite(b, 255);
  }
}

void red() { //set up red light
  tone(speaker, 523); //turn the speaker on

  analogWrite(r, 0); //turn the red led on
  analogWrite(g, 255);
  analogWrite(b, 255);

  delay(750); //wait 750 milliseconds
}
void green() { //set up green light
  tone(speaker, 523); //turn on the speaker

  analogWrite(r, 255);
  analogWrite(g, 0); //turn on green light
  analogWrite(b, 255);

  delay(750); //wait 750 milliseconds
}
void blue() { //set up blue light
  tone(speaker, 523); //turn on the speaker

  analogWrite(r, 255);
  analogWrite(g, 255);
  analogWrite(b, 0); //turn on the blue light

  delay(750); //wait 750 milliseconds
}
void orange() { //set up the orange light
  tone(speaker, 523); //turn on the speaker

  analogWrite(r, 0); //turn on the red light
  analogWrite(g, 200); //slightly turn on the green to blend to orange
  analogWrite(b, 255);

  delay(750); //wait 750 milliseconds
}
void yellow() { //set up the yellow light
  tone(speaker, 523); //turn on the speaker

  analogWrite(r, 0); //turn the the red light
  analogWrite(g, 0); //turn on the green light and they will blend into yellow
  analogWrite(b, 255);

  delay(750); //wait 750 milliseconds
}