from flask import g
from database.sqlite import SQLite
import json

def get_config():
    config = getattr(g, "_config", None)

    if config is None:
        with open("../config.json") as config_file:
            config = g._config = json.loads(config_file.read())

    return config

def get_db():
    db = getattr(g, "_database", None)

    if db is None:
        if str(get_config()["database"]["type"]).casefold() == "SQLite".casefold():
            db = g._database = SQLite(get_config()["database"]["name"])
    
    return db