package main

import (
	"flag"
	"time"

	"github.com/kelseyhightower/envconfig"
)

type Config struct {
	DSN              string        `envconfig:"DSN" default:"postgresql://postgres:postgres@postgres:5432/postgres?sslmode=disable"`
	ReconnectTimeout time.Duration `envconfig:"RECONNECT_TIMEOUT" default:"2s"`
}

func (c *Config) Parse() error {
	flag.StringVar(&c.DSN, "DSN", "", "postgresql DSN")
	flag.Parse()

	if err := envconfig.Process("", c); err != nil {
		return err
	}

	return nil
}