parity_number_counter

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Filename: parity_number_counter.py
# Version: 1.0.2
# Author: Jeoi Reqi

"""
This script counts the parity of numbers based on user input or file input.

**Included Stand-Alone Modules**:

- 'create_example_txt'  --  https://pastebin.com/fF1Uhj63
- 'create_example_csv'  --  https://pastebin.com/vencCaYU
- 'create_example_json'  --  https://pastebin.com/CDG0mY3V

Options:
1. Manual Input: Allows the user to enter numbers manually until 0 is entered.
2. CSV File: Reads numbers from a CSV file.
3. TXT File: Reads numbers from a TXT file.
4. JSON File: Reads numbers from a JSON file.
0. Exit: Exits the program.

The script calculates and displays the count of even and odd numbers and saves the results to a dynamically named text file.

Output File Naming:
- Manual Input: manual_output.txt
- CSV File: csv_output.txt
- TXT File: txt_output.txt
- JSON File: json_output.txt
"""

import json
import csv

def get_user_input():
    """
    Get user input for numbers.
    """
    while True:
        try:
            user_input = int(input("Enter a number (enter 0 to stop): "))
            return user_input
        except ValueError:
            print("Invalid input. Please enter a valid integer.")

def create_example_text(filename):
    """
    Create an example TXT file with predefined data.
    Note: Each number must be on a separate line or it will not function properly
    """
    text_data = """1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20
21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40
41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60
61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80
81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100
"""

    with open(filename, 'w') as textfile:
        textfile.write(text_data)

def create_example_csv(filename):
    """
    Create an example CSV file with predefined data.
    """
    data = [
        ['Name', 'Age', 'City'],
        ['John Doe', 25, 'New York'],
        ['Jane Smith', 30, 'San Francisco'],
        ['Bob Johnson', 22, 'Los Angeles']
    ]

    with open(filename, 'w', newline='') as csvfile:
        csvwriter = csv.writer(csvfile)
        csvwriter.writerows(data)

def create_example_json(filename):
    """
    Create an example JSON file with predefined data.
    """
    example_data = [
        {
            "name": "John Doe",
            "age": 30,
            "city": "New York",
            "interests": ["reading", "traveling", "coding"]
        },
        {
            "name": "Jane Smith",
            "age": 25,
            "city": "Los Angeles",
            "interests": ["hiking", "photography", "music"]
        }
    ]

    with open(filename, 'w') as jsonfile:
        json.dump(example_data, jsonfile, indent=2)

def txt_input(filename):
    """
    Read numbers from a TXT file.
    Note: Each number must be on a separate line or it will not function properly
    """
    if not filename:
        filename = 'manual_output.txt'
        create_example_text(filename)
        print(f"Created example text file '{filename}'.")

    with open(filename, 'r') as txtfile:
        numbers = [int(num) for line in txtfile for num in line.split()]

    print("\nParity in the TXT file:")
    print(numbers)
    return numbers

def csv_input(filename):
    """
    Read numbers from a CSV file.
    """
    with open(filename, 'r') as csvfile:
        csvreader = csv.reader(csvfile)
        next(csvreader)  # Skip the header row
        numbers = [int(row[1]) for row in csvreader]

    print("\nParity in the CSV file:")
    print(numbers)
    return numbers

def json_input(filename):
    """
    Read numbers from a JSON file.
    """
    with open(filename, 'r') as jsonfile:
        data = json.load(jsonfile)
        numbers = []

        for person in data:
            for key, value in person.items():
                if isinstance(value, (int, float)):
                    numbers.append(value)

        print("\nParity in the JSON file:")
        print(numbers)
        return numbers

def create_output_filename(extension, choice):
    """
    Create the output filename based on the option type.
    """
    option_types = {
        1: 'manual',
        2: 'csv',
        3: 'txt',
        4: 'json'
    }

    return f"{option_types.get(choice, 'unknown')}_output.{extension}"

def main():
    """
    Main function for the Parity Number Counter program.
    """
    print("Welcome to the Parity Number Counter Program!")

    while True:
        # Get user choice
        print("\nOptions:")
        print("1. Manual Input")
        print("2. CSV File")
        print("3. TXT File")
        print("4. JSON File")
        print("0. Exit")

        choice = int(input("Enter your choice: "))

        if choice == 1:
            numbers = []
            while True:
                number = get_user_input()
                print(f"User entered: {number}")
                if number == 0:
                    break
                numbers.append(number)
        elif choice == 2:
            filename = input("Enter the CSV filename (press Enter for 'csv_output.txt'): ")
            if not filename:
                filename = 'csv_output.txt'
                create_example_csv(filename)
            numbers = csv_input(filename)
        elif choice == 3:
            filename = input("Enter the TXT filename (press Enter for 'txt_output.txt'): ")
            if not filename:
                filename = 'txt_output.txt'
                create_example_text(filename)
            numbers = txt_input(filename)
        elif choice == 4:
            filename = input("Enter the JSON filename (press Enter for 'json_output.txt'): ")
            if not filename:
                filename = 'json_output.txt'
                create_example_json(filename)
            numbers = json_input(filename)
        elif choice == 0:
            print("Exiting the program.")
            break
        else:
            print("Invalid choice. Please choose a valid option.")

        # Process numbers
        even_count = sum(1 for num in numbers if num % 2 == 0)
        odd_count = len(numbers) - even_count

        # Display results
        print("\nResults:\n")
        print(f"Even numbers entered: {even_count}")
        print(f"Odd numbers entered: {odd_count}")
        print("\nThank you for using the program!\n")

        # Write results to a text file
        output_filename = create_output_filename('txt', choice)
        with open(output_filename, "w") as text_file:
            text_file.write(f"User inputs: {numbers}\n")
            text_file.write(f"Even numbers entered: {even_count}\n")
            text_file.write(f"Odd numbers entered: {odd_count}\n")

if __name__ == "__main__":
    main()