import json
from datetime import datetime
import os

MAX_LOG_ENTRIES = 100 

log_file = os.path.join(os.path.dirname(__file__), "logs.json")

def log(text, from_lang, to_lang, translated_text):
   
    log_entry = {
        "text": text,
        "from_lang": from_lang,
        "to_lang": to_lang,
        "translated_text": translated_text,
        "timestamp": datetime.now().strftime("%d-%m-%Y %H:%M:%S")
    }

    try:
        with open(log_file, 'r+') as file:
            logs = json.load(file)

            if "chats" not in logs:
                logs["chats"] = []
            
            logs["chats"].append(log_entry)
            
            if len(logs["chats"]) > MAX_LOG_ENTRIES:
                logs["chats"] = logs["chats"][-MAX_LOG_ENTRIES:]  

            file.seek(0)
            json.dump(logs, file, indent=4)

    except (FileNotFoundError, json.JSONDecodeError) as e:
        print(f"Error occurred: {e}")
        with open(log_file, 'w') as file:
            json.dump({"chats": [log_entry]}, file, indent=4)