import yaml

class Config:
    def __init__(self, filename):
        self.filename = filename
        self.providers = []
        self.prometheus_url = None
        self.database_url = None
        self.load_config()

    def load_config(self):
        """load the configuration from the file"""
        with open(self.filename, 'r') as file:
            data = yaml.safe_load(file)
            self.providers = data.get('providers', [])
            self.prometheus_url = data.get('prometheus_url', None)
            self.database_url = data.get('database_url', None)

    def get_providers(self):
        """return the provider information from the configuration"""
        return self.providers
    
    def get_provider(self, provider_name):
        """return the provider information from the configuration"""
        for provider in self.providers:
            if provider.get('name') == provider_name:
                return provider
        return None
    def get_prometheus_url(self):
        """return the prometheus url from the configuration"""
        return self.prometheus_url
    def get_database_url(self):
        """return the database url from the configuration"""
        return self.database_url