package env

import (
	"errors"
	"os/user"
)

func Get(flag string) string {
	saveMu.Lock()
	defer saveMu.Unlock()
	if envPB == nil {
		return ""
	}
	c := findByLower(flag)
	if c == nil {
		return ""
	}

	return c.Value
}

func GetAppname() (string, error) {
	if APPNAME != "" {
		return APPNAME, nil
	}
	return "", errors.New("your application must setup config.Init()")
}

func GetUsername() string {
	if Get("username") != "" {
		return Get("username")
	}
	usr, _ := user.Current()
	if usr.Username != "" {
		return usr.Username
	}
	return "notsure" // OS Idiocracy
}