import tkinter as tk

# Create a window object
window = tk.Tk()

# Set the window title
window.title("Template Viewer")

# Set the window size
window.geometry("600x400")

# Create a label widget to display the input text
output_label = tk.Label(window, text="", justify="left", wraplength=500)

# Create a text input widget that spans most of the window
input_field = tk.Text(window, height=20, width=70)

# Define a function to handle button click event
import random
import re

def show_input():
    input_text = input_field.get("1.0", "end-1c")
    words = re.findall(r"[\w']+|[^_\s]*__[^_\s]*", input_text)
    while any(word.startswith("__") and word.endswith("__") for word in words):
        for i in range(len(words)):
            if words[i].startswith("__") and words[i].endswith("__"):
                word = words[i][2:-2]
                try:
                    with open(f"{word}.txt", "r") as f:
                        lines = f.readlines()
                        random_line = random.choice(lines)
                        words[i] = random_line.strip()
                except FileNotFoundError:
                    pass
        output_text = " ".join(words)
    output_label.config(text=output_text, fg="black")

# Create a button widget to display the input text
show_button = tk.Button(window, text="Generate", command=show_input, bg="white", fg="black")

# Define a function to handle copy button click event
def copy_output():
    output_text = output_label.cget("text")
    window.clipboard_clear()
    window.clipboard_append(output_text)

# Create a button widget to copy the output text
copy_button = tk.Button(window, text="Copy Output", command=copy_output, bg="yellow")

# Setthe positions of the widgets using the grid layout manager
output_label.grid(row=0, column=1, columnspan=2, padx=10, pady=10, sticky="nsew")
input_field.grid(row=1, column=0, padx=10, pady=10, sticky="nsew")
show_button.grid(row=0, padx=10, pady=10, sticky="w")
copy_button.grid(row=0, column=3, padx=10, pady=10, sticky="e")

# Configure the grid layout manager to expand rows and columns
window.grid_columnconfigure(0, weight=1)
window.grid_rowconfigure(0, weight=1)
window.grid_rowconfigure(1, weight=1)

# Start the window event loop
window.mainloop()