import csv
import os
from datetime import datetime

LOG_FILE = "feedback_log.csv"

def log_feedback(
    question,
    option1,
    option2,
    context,
    evo_output,
    gpt_output,
    evo_reasoning,
    user_preference=None
):
    """
    Logs Evo and GPT output for learning.
    """
    file_exists = os.path.isfile(LOG_FILE)
    
    with open(LOG_FILE, mode='a', newline='', encoding='utf-8') as file:
        writer = csv.writer(file)

        if not file_exists:
            writer.writerow([
                "timestamp",
                "question",
                "option1",
                "option2",
                "context",
                "evo_output",
                "gpt_output",
                "evo_reasoning",
                "user_preference"
            ])
        
        writer.writerow([
            datetime.now().isoformat(),
            question,
            option1,
            option2,
            context,
            evo_output,
            gpt_output,
            evo_reasoning,
            user_preference or ""
        ])