nicethings/nicethings

#!/usr/bin/env python3

import re
import os
import sys
import random

the_list = "/home/m455/code/projects/nicethings/list.txt"
program_name = "nicethings"
top_line = "-----------------------------------------\n"
bottom_line = "\n-----------------------------------------"

messages = {'list_created': "{} created\n{} now readable and writeable by other users".format(the_list, the_list),
            'list_empty': "sorry, there's nothing in {}\nTry adding something to the list by typing:\n{} \"your message here\"".format(the_list, program_name),
            'args_too_many': "sorry, i only accept one argument.\ntry using:\n{} \"your message here\"".format(program_name),
            'input_null': "sorry, i couldn't find any input.\n\niry using:\n{} \"your message here\"".format(program_name),
            'item_added': "you have added the following to the list:\n",
            'try_again': "sorry, i didn't get that, try typing y or n:",
            'bye': "bye bye",
            'too_many_args': "sorry, i only accept one argument.\ntry using:\n{} \"your message here\"".format(program_name),
            'file_not_found': "{} doesn't exist\ndo you want me to make a {} file right now? (y/n)".format(the_list, the_list)}
            
def write_to_file(a_file, content):
    temp = open(a_file, 'a')
    temp.write(content)
    temp.close()

def create_file(a_file):
    open(a_file, 'a').close()
    os.chmod(the_list, 0o666)
    print(messages['list_created'])

def show_random_line(a_file):
    thefile = open(a_file, 'r').read(1)
    temp = open(a_file, 'r')
    contents = temp.read(1)
    if not contents:
        print(messages['list_empty'])
    else:
        print(random.choice(list(open(the_list, 'r'))).rstrip('\n'))

def add_to_list(args):
    write_to_file(the_list, args + "\n")
    print(top_line + messages['item_added'], args, bottom_line)

def hangle_args(args):
    if len(args) <= 1:
        show_random_line(the_list)
    elif len(args) > 2:
        print(messages['too_many_args'])
    elif args[1].isspace() == True or args[1] == "":
        print(messages['input_null'])
    else:
        add_to_list(args[1])

def prompt_file_creation():
    userchoice = input()
    if userchoice == "y":
        create_file(the_list)
    elif userchoice == "n":
        print(messages['bye'])
    else:
        print(messages['try_again'])
        prompt_file_creation()

def main(args):
    if os.path.exists(the_list) == True:
        hangle_args(args)
    else:
        print(messages['file_not_found'])
        prompt_file_creation()

if __name__ == '__main__':
    main(sys.argv)