package config

type Opts struct {
	Path      string
	ConfigDir string
	EnvPrefix string
}

func DefaultOpts() *Opts {
	return new(Opts)
}

// Option allows to set an optional parameter of the Config.
type Option func(*Opts)

// WithConfigFile returns an option to set the system path
// to the configuration file.
func WithConfigFile(path string) Option {
	return func(o *Opts) {
		o.Path = path
	}
}

// WithConfigDir returns an option to set the system path
// to the directory with configuration files.
func WithConfigDir(path string) Option {
	return func(o *Opts) {
		o.ConfigDir = path
	}
}

// WithEnvPrefix returns an option to defines
// a prefix that ENVIRONMENT variables will use.
func WithEnvPrefix(envPrefix string) Option {
	return func(o *Opts) {
		o.EnvPrefix = envPrefix
	}
}