Problem in interfacing sensor and pushbutton together to run a motor

.
Conditions:
When pushbutton 1 is pressed if sensor value >500 the motor has to be turned on. If the pushbutton is pressed second time the motor has to go off
When pushbutton 2 is pressed if sensor value 500 the motor has to be turned on. If the pushbutton is pressed second time the motor has to go off,

This is my code

int buttonPin = 7;   
int waterPump=12;
int enable = 11;      


int pumpState = HIGH;         
int buttonState;           
int lastButtonState = LOW;
 


unsigned long lastDebounceTime = 0;  
unsigned long debounceDelay = 50;    

void setup() {
  Serial.begin(9600);
  pinMode(buttonPin, INPUT);
  pinMode(enable, OUTPUT);
  pinMode(waterPump, OUTPUT);

 
  digitalWrite(waterPump, pumpState); 
  
}

void loop() {
  int reading = digitalRead(buttonPin);
  //int SensorValue=analogRead(A0);
  //Serial.println(SensorValue);
  //delay(1000);
  


  if (reading != lastButtonState) {
    
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    
  
    if (reading != buttonState) {
      buttonState = reading;

      if (buttonState == HIGH) {
        pumpState = !pumpState;
      }
    }
  }
  {
  digitalWrite(enable, HIGH);
  digitalWrite(waterPump, pumpState);
  lastButtonState = reading;
  }}

Chaklu:
if sensor value 500

That doesn't make sense.... >? =? <? <=? >=?

The Analog read on the serial monitor