package config

import (
	"os"
	"strconv"
	"time"
)

func (c *Config) ReadEnv() (err error) {

	// General Configuration

	stringVar(&c.BaseUrl, "BASE_URL")
	stringVar(&c.SavePath, "SAVE_PATH")
	intVar(&c.Port, "PORT")

	return
}

func stringVar(x *string, key string) {
	if v := os.Getenv(key); v != "" {
		*x = v
	}
}
func float64Var(x *float64, key string) (err error) {
	if v := os.Getenv(key); v != "" {
		*x, err = strconv.ParseFloat(v, 64)
	}
	return
}
func intVar(x *int, key string) (err error) {
	if v := os.Getenv(key); v != "" {
		*x, err = strconv.Atoi(v)
	}
	return
}
func durationVar(x *time.Duration, key string) (err error) {
	if v := os.Getenv(key); v != "" {
		*x, err = time.ParseDuration(v)
	}
	return
}