# ========================
# Google Sheets Integration
# ========================

def connect_to_sheet():
    creds_dict = json.loads(os.environ["GOOGLE_CREDS_JSON"])
    scope = [
        "https://spreadsheets.google.com/feeds",
        "https://www.googleapis.com/auth/spreadsheets",
        "https://www.googleapis.com/auth/drive"
    ]
    creds = ServiceAccountCredentials.from_json_keyfile_dict(creds_dict, scope)
    client = gspread.authorize(creds)
    sheet = client.open("Hackathon Leaderboard").sheet1
    return sheet

def append_score(timestamp, score, filename):
    sheet = connect_to_sheet()
    sheet.append_row([timestamp, score, filename])

def fetch_leaderboard():
    sheet = connect_to_sheet()
    data = sheet.get_all_records()
    return pd.DataFrame(data)