int thermistorPin = A0;
int ldrPIN = A2;

int tempLED = 6;
int lightLED = 3;

int tempThresholds = 1;
float* tempRange = 0;
float tempMIN;
float tempMAX;

int lightThresholds = 1;
float* lightRange = 0;
float lightMIN;
float lightMAX;

void setup() {
  Serial.begin(9600);
  pinMode(tempLED, OUTPUT);
  pinMode(lightLED, OUTPUT);

  tempMIN = 20.0;
  tempMAX = 30.0;
  tempThresholds = 50;

  lightMIN = 450;
  lightMAX = 600;
  lightThresholds = 20;


  if (tempRange != 0) {
    delete [] tempRange;
  }

  if (lightRange != 0) {
    delete [] lightRange;
  }

  tempRange = new float[tempThresholds];
  lightRange = new float[lightThresholds];

  float tempX = tempMAX - tempMIN;
  for(int i=0; i<tempThresholds; i++){
    tempRange[i] = ((i+1)*tempX)/tempThresholds;
  }

  float lightX = lightMAX - lightMIN;
  for(int i=0; i<lightThresholds; i++){
    lightRange[i] = ((i+1)*lightX)/lightThresholds;
  }
}

void loop() {
  Serial.println(lightRange[0]);
  Serial.println(lightRange[1]);
  Serial.println(lightRange[2]);
  Serial.println(lightRange[3]);
  Serial.println(lightRange[4]);
  Serial.println(lightRange[5]);
  Serial.println(lightRange[6]);
  Serial.println(lightRange[7]);
  Serial.println(lightRange[8]);

  int Tc = getCelsius(analogRead(thermistorPin));
  int Light = analogRead(ldrPIN);

  int tempVoltage = getTempVoltage(Tc);
  int lightVoltage = getLightVoltage(Light);

  Serial.print("Temperature: ");
  Serial.print(Tc);
  Serial.println(" C");

  Serial.print("Light: ");
  Serial.print(Light);
  Serial.println("");




  if(tempVoltage >= 0 && tempVoltage <= 255){
    analogWrite(tempLED,tempVoltage);
    Serial.print("Temp Voltage: ");
    Serial.println(tempVoltage);
  }
  Serial.println("");

  if(lightVoltage >= 0 && lightVoltage <= 255){
    Serial.print("LIGHT Voltage: ");
    Serial.println(lightVoltage);
    analogWrite(lightLED,lightVoltage);
  }


  delay(500);
}

int getCelsius(int sensor){
  float R1 = 10000;
  float logR2, R2, T, Tc, Tf;
  float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
  R2 = R1 * (1023.0 / (float)sensor - 1.0);

  logR2 = log(R2);
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
  int temp = T - 273.15;
  return temp;
}

int getTempVoltage(int C){
  int tempIndex = 0;
  float tempValue = tempMAX - C;

  if(tempRange[tempIndex]-tempValue < 1){
    while(tempRange[tempIndex]-tempValue < 1){
      tempIndex++;

      if(tempIndex >= tempThresholds){
        tempIndex = tempThresholds-1;
        break;
      }
    }

    return ((tempIndex+1)*255)/tempThresholds;
  }else{
      return 0;
  }
}

int getLightVoltage(int L){
  int lightIndex = 0;
  float lightValue = lightMAX - L;

  if(lightRange[lightIndex]-lightValue < 1){
    while(lightRange[lightIndex]-lightValue < 1){
      Serial.print(lightIndex);
      Serial.print(" ");
      Serial.println(lightRange[lightIndex]-lightValue);
      lightIndex++;

      if(lightIndex >= lightThresholds){
        lightIndex = lightThresholds-1;
        break;
      }
    }

      return ((lightIndex+1)*255)/lightThresholds;
    }
    else{
      return 0;
  }
}