from typing import List

import pandas as pd

from config.models import Screen, Participant
from setup import db_engine, session

screen_status = {0: "off", 1: "on", 2: "locked", 3: "unlocked"}


def get_screen_data(usernames: List) -> pd.DataFrame:
    """
    Read the data from the screen table and return it in a dataframe.

    Parameters
    ----------
    usernames: List
        A list of usernames to put into the WHERE condition.

    Returns
    -------
    df_screen: pd.DataFrame
        A dataframe of screen data.
    """
    query_screen = (
        session.query(Screen, Participant.username)
        .filter(Participant.id == Screen.participant_id)
        .filter(Participant.username.in_(usernames))
    )
    with db_engine.connect() as connection:
        df_screen = pd.read_sql(query_screen.statement, connection)
    return df_screen