from dotenv import dotenv_values
import pathlib


def populate_values(load: {}):
    conf = load
    conf['IS_DEV']: bool = str.lower(load['ENVIRONMENT']) == 'dev'
    conf['USE_EMULATOR']: bool = str.lower(load['USE_EMULATOR']) == 'true'
    conf['BIND_PORT']: int = int(load['BIND_PORT'])

    conf['STRIP_PIXELS']: int = int(load['STRIP_PIXELS'])
    conf['STRIP_GPIO_PIN']: int = int(load['STRIP_GPIO_PIN'])
    conf['STRIP_HZ']: int = int(load['STRIP_HZ'])
    conf['STRIP_DMA']: int = int(load['STRIP_DMA'])
    conf['STRIP_INVERT']: bool = str.lower(load['STRIP_INVERT']) == 'true'
    conf['STRIP_BRIGHTNESS']: int = int(load['STRIP_BRIGHTNESS'])
    conf['STRIP_CHANNEL']: int = int(load['STRIP_CHANNEL'])
    conf['STRIP_TYPE']: int = int(load['STRIP_TYPE'])

    conf['REGIONS']: [] = [int(x) for x in load['REGIONS'].split(',')]
    conf['BPM_DEFAULT']: int = int(load['BPM_DEFAULT'])

    return conf


class Config(object):
    _config: {} = {}

    def __init__(self):
        rp = str(pathlib.Path(__file__).parent.parent.absolute())
        load_conf = {
            **dotenv_values(rp + "/.env.defaults"),
            **dotenv_values(rp + "/.env"),
        }
        self._config = populate_values(load_conf)

    def get(self, key: str):
        return self._config[key]