import tkinter as tk
from tkinter import ttk

class ChatApp:
    def __init__(self, master):
        self.master = master
        master.title("Chat App")
        master.geometry("500x600")

        self.chat_history = tk.Text(master, height=25, width=60, state="disabled")
        self.chat_history.tag_configure("right", justify="right")
        self.chat_history.tag_configure("left", justify="left")
        self.chat_history.pack(side="top", fill="both", expand=True)

        self.message_input = tk.Entry(master, width=60)
        self.message_input.pack(side="left", padx=5, pady=5, expand=True, fill="both")

        send_button_image = tk.PhotoImage(file="send.png")
        self.send_button = tk.Button(master, image=send_button_image, command=self.send_message)
        self.send_button.image = send_button_image
        self.send_button.pack(side="right", padx=5, pady=5)

        self.message_input.bind("<Return>", self.send_message)

    def send_message(self, event=None):
        message = self.message_input.get()
        self.message_input.delete(0, "end")
        self.display_message("Me", message, "right")

    def display_message(self, name, message, justify):
        self.chat_history.configure(state="normal")
        self.chat_history.insert("end", f"{name}:\n", justify)
        self.chat_history.insert("end", f"{message}\n")
        self.chat_history.configure(state="disabled")

if __name__ == '__main__':
    root = tk.Tk()
    chat_app = ChatApp(root)
    root.mainloop()