Sending User Input

# Building a proper messages array from user input

import os

def build_chat_messages(user_input, system_instruction=None):
    """
    Build a properly formatted messages array for the OpenAI API.

    Parameters:
    - user_input: the text the user typed
    - system_instruction: optional instruction that defines how the AI should behave
    """
    messages = []

    # Add system message if provided (sets the AI's behavior for the entire conversation)
    if system_instruction:
        messages.append({
            "role": "system",
            "content": system_instruction
        })

    # Add the user's message
    messages.append({
        "role": "user",
        "content": user_input
    })

    return messages

# Example usage
user_text = "What is machine learning in simple terms?"

system = "You are a patient AI tutor for beginners. Always use simple language and everyday analogies. Avoid technical jargon. Keep answers under 150 words."

messages = build_chat_messages(user_text, system_instruction=system)

print("Built messages array:")
import json
print(json.dumps(messages, indent=2))