from datetime import datetime
import random
import uuid
from dataclasses import dataclass

# Shared state to store messages
messages = []

# Dictionary to store user colors
user_colors = {}

@dataclass
class Data:
    user_id: str
    message: str
    timestamp: str

def get_user_color(user_id):
    if user_id not in user_colors:
        user_colors[user_id] = f"#{random.randint(0, 0xFFFFFF):06x}"
    return user_colors[user_id]

def chat(input_text):
    global messages
    
    # Parse the input to get user_id and message
    user_id, message = input_text.split("; ")
    
    # Add the new message to the shared state
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    user_color = get_user_color(user_id)
    messages.append(Data(user_id=user_id, message=message, timestamp=timestamp))
    
    # Print the updated chat history
    for msg in messages:
        print(f"User_{msg.user_id[:4]}: {msg.message} ({msg.timestamp})")

# Example usage
if __name__ == "__main__":
    while True:
        input_text = input("Enter your message (format: 'id here; text here'): ")
        chat(input_text)