"""Calculate the area and perimeter of a given shape.

this program will allow users to pick a shape
and then calculate its area and perimeter
"""

import math
import pandas as pd
import numpy as np

# functions go here...


def make_statement(statement, decoration, lines):
    """Create headings, subheadings, and mini headings.

    Only use emoji for single line statements
    """
    middle = f"{decoration * 3} {statement} {decoration * 3}"
    top_bottom = decoration * len(middle)

    if lines == 1:
        print(middle)
    elif lines == 2:
        print(middle)
        print(top_bottom)

    else:
        print(top_bottom)
        print(middle)
        print(top_bottom)


# Functions go here
def string_check(question, valid_ans_list, num_letters):
    """Check that users enter a full word.

    or the 'n' letter/s of a word from a list of valid responses
    """
    while True:

        response = input(question).lower()

        for item in valid_ans_list:
            if response == item:
                return item

            elif response == item[:num_letters]:
                return item
        print(f"Please choose an option from the list {valid_ans_list}")


# Functions go here
def int_check(question, low, high):
    """Check that users enter the integer value within a specified boundary."""
    error = (f"Oops - please enter a number that is higher "
             f"or equal to {low} and lower or equal to {high} .")

    while True:

        try:
            response = float(input(question))

            if low <= response <= high:
                return response

            else:
                print(error)

        except ValueError:
            print(error)


# All Lists
instructions = ["yes", "no"]

shape_list = ["circle", "square", "rectangle", "parallelogram"]

exit_code = ["continue", "exit"]

data_list = []

# Instructions checker
want_instructions = string_check("Do you want to read the instructions? yes(y) or no(n): ",
                                 instructions, 1)
# Instructions loop
if want_instructions == "yes":
    make_statement("Instructions", "=", 3)
    print()
    make_statement(
        "Pick a shape, "
        "then input the side sizes!",
        "-",
        2,
    )
    print()
    make_statement(
        "The calculator will find the area and perimeter ",
        "!",
        1,
    )
elif want_instructions == "no":
    print("you chose no")
# Main loop

while True:

    # Shape Selection
    shape_select = string_check("Pick a shape from the list "
                                "[circle (c), square (s), rectangle (r), parallelogram (p)]: ", shape_list, 1)
    print(f"You chose {shape_select}")

    # Circle calculations
    if shape_select == shape_list[0]:
        radius = int_check("Enter the radius of your shape: ", 0.1, 100)

        circumference = 2 * math.pi * radius
        area = math.pi * radius * radius
        shape = 'circle'
        circumference_round = round(circumference, 2)
        area_round = round(area, 2)
        print(f' The circumference of the circle is:{circumference_round}')
        print(f' The area of the circle is:{area_round}')
        data_list.append({
            "Shape": shape,
            "Perimeter": circumference_round,
            "Area": area_round
        })
        leave = string_check("Exit(e) or continue(c)?  ", exit_code, 1)
    # Square calculations
    elif shape_select == shape_list[1]:
        length = int_check("enter the length of your shape: ", 0.1, 100)
        area = length * length
        shape = 'square'
        perimeter = length + length + length + length
        area_round = round(area, 2)
        perimeter_round = round(perimeter, 2)
        print(f' The area of the square is:{area_round}')
        print(f' The perimeter of the square is:{perimeter_round}')
        data_list.append({
            "Shape": shape,
            "Area": area_round,
            "Perimeter": perimeter_round
        })
        leave = string_check("Exit(e) or continue(c)?  ", exit_code, 1)
    # Rectangle calculations
    elif shape_select == shape_list[2]:
        first_length = int_check("enter the length of your shape: ", 0.1,
                                 100)
        second_length = int_check("enter the width of your shape: ", 0.1,
                                  100)
        area = first_length * second_length
        perimeter = first_length + first_length + second_length + second_length
        shape = 'rectangle'
        area_round = round(area, 2)
        perimeter_round = round(perimeter, 2)
        print(f' The area of the rectangle is:{area_round}')
        print(f' The perimeter of the rectangle is:{perimeter_round}')
        data_list.append({
            "Shape": shape,
            "Area": area_round,
            "Perimeter": perimeter_round
        })
        leave = string_check("Exit(e) or continue(c)?  ", exit_code, 1)
    # Parallelogram calculations
    elif shape_select == shape_list[3]:
        length = int_check("enter the length of your shape: ", 0.1, 100)
        height = int_check("enter the height of your shape: ", 0.1, 100)
        area = length * height
        perimeter = length + length + length + length
        shape = 'parallelogram'
        area_round = round(area, 2)
        perimeter_round = round(perimeter, 2)
        print(f' The area of the parallelogram is:{area_round}')
        print(f' The perimeter of the parallelogram is:{perimeter_round}')
        data_list.append({
            "Shape": shape,
            "Area": area_round,
            "Perimeter": perimeter_round
        })
        leave = string_check("Exit(e) or continue(c)?  ", exit_code, 1)
    # Exit loop
    if leave == "continue":
        continue
    elif leave == "exit":
        # Prints calculation history table and then breaks
        df = pd.DataFrame(data_list)
        df.index = np.arange(1, len(df) + 1)
        print('Calculation History:')
        print(df)
        break