package config

import (
	"log"
	"os"
	"strconv"

	"github.com/joho/godotenv"
)

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

type Config struct {
	DatabaseType             string
	DatabaseURL              string
	HttpPort                 int
	JWTSecret                string
	StorageType              string // Database, S3, filesystem
	StoragePath              string // filesystem
	StorageS3Bucket          string // S3
	StorageS3Endpoint        string // S3
	StorageS3AccessKeyID     string // S3
	StorageS3AccessKeySecret string // S3
	StorageS3UseSSL          string // S3
}

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")
		}
		storageType := os.Getenv("LASSISTANOQUE_STORAGE_TYPE")
		if storageType == "" {
			storageType = DEFAULT_STORAGE_TYPE
		}

		config = &Config{
			DatabaseType: databaseType,
			DatabaseURL:  databaseURL,
			HttpPort:     httpPort,
			JWTSecret:    jwtsecret,
			StorageType:  storageType,
		}

	}
	return config
}