package env

import (
	"log"
	"net/url"
	"os"
)

func GuaranteeEnv(key string) (variable string) {
	variable, ok := os.LookupEnv(key)
	if !ok || variable == "" {
		log.Fatalln("Missing environment variable:", key)
	}
	return
}

var JwtSecret = GuaranteeEnv("LISHWIST_JWT_SECRET")
var HostRootUrl = GuaranteeEnv("LISHWIST_HOST_ROOT_URL")
var HostPort = os.Getenv("LISHWIST_HOST_PORT")
var ServePort = GuaranteeEnv("LISHWIST_SERVE_PORT")
var HostUrl = func() *url.URL {
	rawUrl := HostRootUrl
	if HostPort != "" {
		rawUrl += ":" + HostPort
	}
	u, err := url.Parse(rawUrl)
	if err != nil {
		log.Fatalln("Couldn't parse host url:", err)
	}
	return u
}()