Q6

import math


# check if number is positive or not
def isPositive(num):
    if num < 0:
        return False
    else:
        return True


# this func calculate
# the area and circumference of a circle
def circle(fileLine):
    if not userInput:
        shape.write(str(fileLine))
        fileLine = tempShape.readline()
        shape.write(fileLine)
        fileLine = fileLine.rstrip('\n')

    try:
        r = float(fileLine)
        if not isPositive(r):
            if not userInput:
                shape.write("Error " + str(r) + " need to be a positive number " + '\n')
            raise ValueError("need to be a positive number ")
        else:
            if userInput:
                shape.write(shapeName + '\n')
            area = r ** 2 * math.pi
            circumference = 2 * math.pi * r
            shape.write(str(area) + '\n')
            shape.write(str(circumference) + '\n')

    except ValueError as ve:
        print(ve)


# this func calculate
# the area and circumference of a rectangle
# a= The length of the first side of the rectangle
# b= The length of the second side of the rectangle
def rectangle(fileLine):
    if not userInput:
        shape.write(str(fileLine))
        tempA = tempShape.readline()
        shape.write(tempA)
        tempB = tempShape.readline()
        shape.write(tempB)
    else:

        tempA = input("Enter the first side: ")
        tempB = input("Enter the second side: ")

    try:
        a = float(tempA)
        b = float(tempB)
        if a % 1 != 0:

            if not userInput:
                shape.write("Error " + str(a) + " needs to be an integers " + '\n')
            raise ValueError(str(a) + "need to be an integer ")
        elif b % 1 != 0:
            if not userInput:
                shape.write("Error " + str(b) + " need to be an integer " + '\n')
            raise ValueError(str(b) + "need to be an integer ")

        elif not isPositive(a):

            if not userInput:
                shape.write("Error " + str(a) + " needs to be a positive numbers " + '\n')
            raise ValueError(str(a) + "need to be a positive number ")
        elif not isPositive(b):
            if not userInput:
                shape.write("Error " + str(b) + " need to be a positive number " + '\n')
            raise ValueError(str(b) + "need to be a positive number ")

        else:
            if not userInput:
                area = int(a * b)
                circumference = int(2 * a + 2 * b)
                shape.write(str(area) + '\n')
                shape.write(str(circumference) + '\n')
            else:
                if userInput:
                    shape.write(fileLine + '\n')
                    shape.write(tempA + '\n')
                    shape.write(tempB + '\n')
                area = float(a * b)
                circumference = float(2 * a + 2 * b)
                shape.write(str(area) + '\n')
                shape.write(str(circumference) + '\n')

    except ValueError as ve:
        print(ve)


# this func calculate
# the area and circumference of a triangle
# a= Base length of a triangle
# b= the height of the triangle
def triangle(fileLine):
    if not userInput:
        shape.write(str(fileLine))
        tempA = tempShape.readline()
        shape.write(tempA)
        tempB = tempShape.readline()
        shape.write(tempB)
    else:

        tempA = input("Enter the base length of a triangle: ")
        tempB = input("Enter the height of the triangle: ")

    try:
        a = float(tempA)
        b = float(tempB)
        if a % 1 != 0:

            if not userInput:
                shape.write("Error " + str(a) + " needs to be an integers " + '\n')
            raise ValueError(str(a) + "need to be an integer ")
        elif b % 1 != 0:
            if not userInput:
                shape.write("Error " + str(b) + " need to be an integer " + '\n')
            raise ValueError(str(b) + "need to be an integer ")

        elif not isPositive(a):

            if not userInput:
                shape.write("Error " + str(a) + " needs to be a positive numbers " + '\n')
            raise ValueError(str(a) + "need to be a positive number ")
        elif not isPositive(b):
            if not userInput:
                shape.write("Error " + str(b) + " need to be a positive number " + '\n')
            raise ValueError(str(b) + "need to be a positive number ")

        else:
            if userInput:
                shape.write(fileLine + '\n')
                shape.write(tempA + '\n')
                shape.write(tempB + '\n')
            area = float((a * b) / 2)
            c = math.sqrt(a ** 2 + b ** 2)
            circumference = float(a + b + c)
            shape.write(str(area) + '\n')
            shape.write(str(circumference) + '\n')

    except ValueError as ve:
        print(ve)


userInput = False
shape = open('Shapes.txt', 'r')
tempShape = open('tempShapes', 'w')
line = shape.readline()
# we read the data from the shape.txt to temp file
while line != '':
    tempShape.write(line)
    line = shape.readline()

shape.close()
tempShape.close()
shape = open('Shapes.txt', 'w')
tempShape = open('tempShapes', 'r')
line = tempShape.readline()
# this while we write back to the shape.txt the correct data
while line != '':
    tempLine = line
    tempLine = line.rstrip('\n')
    if tempLine.lower() == "circle":
        circle(line)
    elif tempLine.lower() == "rectangle":
        rectangle(line)
    elif tempLine.lower() == "triangle":
        triangle(line)
    line = tempShape.readline()
shape.close()
tempShape.close()
shape = open('Shapes.txt', "a")
stop = False
# this while we get the input from the user
while not stop:
    userInput = True
    try:
        shapeName = input("Enter name of shape")
        tempShapeName = shapeName
        if tempShapeName.lower() == "circle":
            radius = (input("Enter the radius"))
            circle(radius)
        elif tempShapeName.lower() == "rectangle":
            rectangle(shapeName)
        elif tempShapeName.lower() == "triangle":
            triangle(shapeName)
        else:
            raise Exception("The shape you enter are wrong please try again")
        key = input("you want to stop the program? press 'n'"'\n'"if not press any key: ")
        if key == "n":
            stop = True
            shape.close()
    except Exception as ex:
        print(ex)