import drawsvg as draw
import os
import math


class Circle:
    def __init__(self, name: str, filepath: str, length=1000, height=1000, radius=10, distance=60, offset=50):
        assert length >= 0, "length can not be negative"
        assert height >= 0, "height can not be negative"
        assert radius >= 0, "radius can not be negative"
        assert distance >= 2*radius, "distance must be grater den two times the radius"
        assert offset >= 0, "offset can only be 0 - 100 %"
        assert offset <= 100, "offset can only be 0 - 100 %"

        self.__length = length
        self.__height = height
        self.__radius = radius
        self.__distance = distance
        self.__offset_percentage = offset
        self.__offset = (distance / 100) * offset
        self.__name = name
        self.__filepath = filepath

    @property
    def length(self):
        return self.__length

    @length.setter
    def length(self, val):
        assert length >= 0, "length can not be negative"
        self.__length = val

    @property
    def height(self):
        return self.__height

    @height.setter
    def height(self, val):
        assert height >= 0, "height can not be negative"
        self.__height = val

    @property
    def radius(self):
        return self.__radius

    @radius.setter
    def radius(self, val):
        assert radius >= 0, "radius can not be negative"
        self.__radius = val
    @property
    def distance(self):
        return self.__distance

    @distance.setter
    def distance(self, val):
        assert distance >= 2 * radius, "distance must be grater den two times the radius"
        self.__distance = val

    @property
    def offset_percentage(self):
        return self.__offset_percentage

    @property
    def offset(self):
        return self.__offset

    @offset.setter
    def offset(self, val):
        assert offset >= 0, "offset can only be 0 - 100 %"
        assert offset <= 100, "offset can only be 0 - 100 %"
        self.__offset = (self.__distance / 100) * val

    def circle_generation(self):

        x1 = 10
        y1 = 10
        y = y1
        v = 1
        g = 1

        canvas = draw.Drawing(self.__length, self.__height, origin=(0, 0))

        while y <= self.__height:
            x = x1 + self.__offset * v
            while x <= self.__length:
                canvas.append(draw.Circle(x, y, self.__radius, fill='none', stroke_width=1, stroke='black'))
                x = x + self.__distance
            y = y + self.__distance
            v = -((1 - g) / 2)
            g = -g

        canvas.save_svg(f'{self.__filepath}/{self.__name}.svg')


if __name__ == '__main__':
    name = input("Dateinamen:")

    path = input("Dateipfad (0 für aktuelles Verzeichnis):")
    if path == "0":
        path = os.getcwd()

    shape = int(input("Form (1: Kreis, 2: Hexagon, 3: Dreieck):"))

    if shape == 1:
        circle = Circle(name, path)
        print(f"\nStandardwerte\nHöhe: {circle.height} px\nLänge: {circle.length} px\nRadius: {circle.radius} px\nAbstand: {circle.distance} px\nOffset: {circle.offset_percentage} %\n")
        selection_flag = True
        while selection_flag:
            try:
                parameter_selection = int(input("Parameter ändern (0: keinen Parameter ändern, 1: Höhe, 2: Länge, 3: Radius, 4: Abstand, 5: Offste):"))
                if parameter_selection == 0:
                    selection_flag = False
                elif parameter_selection == 1:
                    height = int(input("Höhe in Pixeln eingeben:"))
                    circle.height = height
                elif parameter_selection == 2:
                    length = int(input("Länge in Pixeln:"))
                    circle.length = length
                elif parameter_selection == 3:
                    radius = int(input("Radius in Pixeln:"))
                    circle.radius = radius
                elif parameter_selection == 4:
                    distance = int(input("Abstand in Pixeln:"))
                    circle.distance = distance
                elif parameter_selection == 5:
                    offset = int(input("Offset in %:"))
                    circle.offset = offset
                else:
                    print("ungültiger Wert")
            except ValueError:
                print("ungültiger Wert")
            except AssertionError as error:
                print(error)

        circle.circle_generation()
    elif shape == 2:
        print("noch nicht implementiert")
    elif shape == 3:
        print("noch nicht implementiert")
    else:
        print("ungültiger Wert")