package env

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

func GetString(key, fallback string) string {
	val, ok := os.LookupEnv(key)
	if !ok {
		log.Printf("Failed to lookup enviornment variable with key %s. Using fallback value '%s'", key, fallback)
		return fallback
	}

	return val
}

func GetInt(key string, fallback int) int {
	val, ok := os.LookupEnv(key)
	if !ok {
		log.Printf("Failed to lookup enviornment variable with key %s. Using fallback value '%d'", key, fallback)
		return fallback
	}

	valInt, err := strconv.Atoi(val)
	if err != nil {
		log.Printf("Failed to convert environment variable with key %s and value %s to int. Using fallback %d. (err: %s)", key, val, fallback, err)
		return fallback
	}

	return valInt
}

func GetDuration(key string, fallback time.Duration) time.Duration {
	val, ok := os.LookupEnv(key)
	if !ok {
		log.Printf("Failed to lookup enviornment variable with key %s. Using fallback value '%s'", key, fallback)
		return fallback
	}

	duration, err := time.ParseDuration(val)
	if err != nil {
		log.Printf("Failed to convert environment variable with key %s and value %s to duration. Using fallback %d. (err: %s)", key, val, fallback, err)
		return fallback
	}

	return duration
}