import os

class EnvironmentService:
    def __init__(self):
        self.LINE_COMMENTED = '#'
        self.VALUE_SEPARATOR = '='

    def LoadEnvFile(self, filepath:str):
        with open(filepath, 'r') as file:
            for line in file:
                line = line.strip()
                if line and not line.startswith(self.LINE_COMMENTED) and self.VALUE_SEPARATOR in line:
                    key,value = line.split(self.VALUE_SEPARATOR, 1)
                    self.Set(key, value) # os.environ[key] = value

    def Get(self, key:str):
        return os.getenv(key)

    def Set(self, key: str, value):
        os.environ[key] = value