import tkinter as tk
import config as conf
import pika

from tkinter.filedialog import askopenfilename, asksaveasfilename

def send_queue_message(exchange_name):
    credentials= pika.PlainCredentials(username= conf.username, password= conf.password)
    connection= pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials= credentials))
    channel= connection.channel()
    channel.exchange_declare(exchange = exchange_name, durable=True, exchange_type='topic')
    channel.queue_declare(queue = 'AllInfo')
    channel.queue_bind(exchange = exchange_name, queue='AllInfo', routing_key='All')
    message = txt_edit.get("1.0", tk.END)

    channel.basic_publish(exchange = exchange_name, routing_key = 'All', body = message)
    channel.close()

def get_queue_message(exchange_name):
    credentials= pika.PlainCredentials(username= conf.username, password= conf.password)
    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials= credentials))
    channel = connection.channel()
    channel.exchange_declare(exchange_name, durable=True, exchange_type='topic')
    txt_edit.delete("1.0", tk.END)
    
    def callbackFunctionForQueue(ch,method,properties,body):
        message = 'Message from Queue Part: ' + body.decode("utf-8")
        txt_edit.insert(tk.END, message)
        ch.basic_ack(delivery_tag = method.delivery_tag)
        
    # Display the message parts
    channel.basic_consume(queue='AllInfo', on_message_callback=callbackFunctionForQueue, auto_ack=True)

    # Close the channel and the connection
    channel.close()
    connection.close()

def open_file():
    """Open a file for editing."""
    filepath = askopenfilename(
        filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")]
    )
    if not filepath:
        return
    txt_edit.delete("1.0", tk.END)
    with open(filepath, mode="r", encoding="utf-8") as input_file:
        text = input_file.read()
        txt_edit.insert(tk.END, text)
    window.title(f"Simple Text Editor - {filepath}")

def save_file():
    """Save the current file as a new file."""
    filepath = asksaveasfilename(
        defaultextension=".txt",
        filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")],
    )
    if not filepath:
        return
    with open(filepath, mode="w", encoding="utf-8") as output_file:
        text = txt_edit.get("1.0", tk.END)
        output_file.write(text)
    window.title(f"Simple Text Editor - {filepath}")

window = tk.Tk()
window.title("Simple Text Editor")

window.rowconfigure(0, minsize=800, weight=1)
window.columnconfigure(1, minsize=800, weight=1)
exchange_name = 'simple-editor'

txt_edit = tk.Text(window)
frm_buttons = tk.Frame(window, relief=tk.RAISED, bd=2)
btn_open = tk.Button(frm_buttons, text="Open", command=open_file)
btn_save = tk.Button(frm_buttons, text="Save As...", command=save_file)
btn_send = tk.Button(frm_buttons, text="Send", command=send_queue_message(exchange_name))
btn_receive = tk.Button(frm_buttons, text="Receive", command=get_queue_message(exchange_name))

btn_open.grid(row=0, column=0, sticky="ew", padx=5, pady=5)
btn_save.grid(row=1, column=0, sticky="ew", padx=5)
btn_send.grid(row=2, column=0, sticky="ew", padx=5, pady=5)
btn_receive.grid(row=3, column=0, sticky="ew", padx=5, pady=5)

frm_buttons.grid(row=0, column=0, sticky="ns")
txt_edit.grid(row=0, column=1, sticky="nsew")

window.mainloop()