#!/usr/bin/python3
"""The linesegment module defines the class line_segment"""

import point

class LineSegment:
    """The class LineSegment defines a two-dimensional line segment in the coordinate system
    starting at a startpoint and ending at a endpoint."""
    def __init__(self, startpoint=point.Point(), endpoint=point.Point()):
        """Initialize the line segment."""
        self.set_startpoint(startpoint)
        self.set_endpoint(endpoint)
    def set_startpoint(self, new_startpoint):
        """Set or change the startpoint of the line segment. If not a Point object is given
        the startpoint gets set to a default value of Point(0,0)"""
        self.__startpoint = new_startpoint
    def get_startpoint(self):
        """Returns the current startpoint"""
        return self.__startpoint
    def set_endpoint(self, new_endpoint):
        """Set or change the endpoint of the line segment. If not a Point object is given
        the endpoint gets set to a default value of Point(0,0)"""
        self.__endpoint = new_endpoint
    def get_endpoint(self):
        """Returns the current endpoint"""
        return self.__endpoint
    def get_length(self):
        """Returns the length of the line segment."""
        diff_x = abs(self.__startpoint.get_x() - self.__endpoint.get_x())
        diff_y = abs(self.__startpoint.get_y() - self.__endpoint.get_y())
        return ((diff_x ** 2) + (diff_y ** 2)) ** (1/2.0)
    def draw(self):
        """TODO: Draw the line segment in a canvas"""