import math
from pyscript import document

def bereken(event):
    output = document.querySelector("#output")

    try:
        a = float(document.querySelector("#a").value)
        b = float(document.querySelector("#b").value)
        c = float(document.querySelector("#c").value)

        if a == 0:
            output.innerText = "Fout: a mag niet 0 zijn."
            return

        d = b**2 - 4*a*c

        if d > 0:
            x1 = round((-b + math.sqrt(d)) / (2*a), 3)
            x2 = round((-b - math.sqrt(d)) / (2*a), 3)
            output.innerText = f"Discriminant: {d}\n x1 = {x1}\n x2 = {x2}"

        elif d == 0:
            x =  round((-b + math.sqrt(d)) / (2*a), 3)
            output.innerText = f"Discriminant: {d}\n x = {x}"

        else:
            output.innerText = f"Discriminant: {d}\n Geen echte oplossingen"

    except ValueError:
        output.innerText = "Fout: Vul geldige getallen in."
		
def reset(event):
	reset = document.querySelector("#reset")
	
	document.querySelector("#a").value = ""
	document.querySelector("#b").value = ""
	document.querySelector("#c").value = ""
	document.querySelector("#output").innerText = ""