import os.path
import sys

read_or_write = str(input("Read or Write? (read/write)"))
exist_or_not = 0

if read_or_write == "read":

    which_one = str(input("Which file would you like to read?"))
    exist_or_not = os.path.exists(which_one)

    if exist_or_not == True:
        with open(which_one, "r") as f:
            reader = f.read()

        print(reader)
    elif exist_or_not == False:
        build_or_not = str(input("There is no said file, wanna build? (build/no)"))

        if build_or_not == "build":
            what_name = str(input("What would you like to name it? "))
            open(what_name, 'a').close()

        elif build_or_not == "no":
            print("Goodbye! ")
            sys.exit()


elif read_or_write == "write":
    which_one = str(input("Which file would you like to overwrite? "))
    exist_or_not = os.path.exists(which_one)

    if exist_or_not == True:
        thing_to_write = str(input("What would you like to write?"))
        with open(which_one, "w") as f:
            writer = f.write(thing_to_write)

        print("This is what you wrote in the file: " + str(thing_to_write))
    elif exist_or_not == False:
        build_or_not = str(input("There is no said file, wanna build? (build/no)"))

        if build_or_not == "build":
            what_name = str(input("What would you like to name it? "))
            open(what_name, 'a').close()

        elif build_or_not == "no":
            print("Goodbye! ")
            sys.exit()