package config

import (
	"fmt"
	"os"
	"strings"

	"github.com/joho/godotenv"
)

var DotenvLoaded bool = false

// Getenv tries to get an environment variable
// and fails if it isn't set
func Getenv(key string) string {
	if !DotenvLoaded {
		err := godotenv.Load()
		if err != nil && os.Getenv(key) == "" {
			panic(fmt.Errorf("environment variable does not exist or is not set: %s", key))
		}
		DotenvLoaded = true
	}
	if val := os.Getenv(key); val != "" {
		return val
	}

	panic(fmt.Errorf("environment variable does not exist or is not set: %s", key))
}

func GetenvDefault(key string, fallback string) string {
	if !DotenvLoaded {
		err := godotenv.Load()
		if err != nil && os.Getenv(key) == "" {
			return fallback
		}
		DotenvLoaded = true
	}
	if val := os.Getenv(key); val != "" {
		return val
	}

	return fallback
}

func GetenvDefaultLowercase(key string, fallback string) string {
	return strings.ToLower(GetenvDefault(key, fallback))
}

func DebugActive() bool {
	return strings.ToLower(GetenvDefault("DEBUG", "false")) == "true"
}