package config

import (
	"log"
	"os"
	"strconv"

	"github.com/joho/godotenv"
)

const (
	DEFAULT_DB_TYPE   = "turso"
	DEFAULT_DB_URL    = "lassistanoque.db"
	DEFAULT_HTTP_PORT = 3000
)

type Config struct {
	DatabaseType string
	DatabaseURL  string
	HttpPort     int
	JWTSecret    string
}

var config *Config

func GetConfig() *Config {

	if config == nil {
		godotenv.Load()

		databaseType := os.Getenv("LASSISTANOQUE_DB_TYPE")
		if databaseType == "" {
			databaseType = DEFAULT_DB_TYPE
		}
		databaseURL := os.Getenv("LASSISTANOQUE_DB_URL")
		if databaseURL == "" {
			databaseURL = DEFAULT_DB_URL
		}
		httpPort, _ := strconv.Atoi(os.Getenv("LASSISTANOQUE_HTTP_PORT"))
		if httpPort == 0 {
			httpPort = DEFAULT_HTTP_PORT
		}
		jwtsecret := os.Getenv("LASSISTANOQUE_JWT_SECRET")
		if jwtsecret == "" {
			log.Fatal("LASSISTANOQUE_JWT_SECRET must be set")
		}

		config = &Config{
			DatabaseType: databaseType,
			DatabaseURL:  databaseURL,
			HttpPort:     httpPort,
		}

	}
	return config
}