package config

import (
	"github.com/joho/godotenv"
	"log"
	"os"
)

type Config struct {
	PostgresDsn string
}

var instance *Config = nil

func loadDotEnv(filename string) {
	err := godotenv.Load(filename)
	if err != nil {
		log.Fatal("Environment variables isn't loaded")
	}

	//	Load env and form instance

	instance = &Config{
		PostgresDsn: func() string {
			val, _ := os.LookupEnv("POSTGRES_DSN")
			return val
		}(),
	}
}

func New() *Config {
	if instance == nil {
		loadDotEnv("env")
	}
	return instance
}