How do I flip my turret object's sprite when it's angle flips to face left, and unflip facing right?

I have a 2d platforming tower defence game, and I am currently struggling at checking my towers' angles to flip when facing an enemy left, and then returning to normal when facing an enemy at its right. Any idea to fix my code?

Not sure what you try to achieve, but your current code just translate your condition to a bool variable. There is no action associated.

You need a condition that defines if there is an enemy in proximity, and based on that the angle it changed accordingly.