package bd

import (
	"database/sql"
	"log"
	"os"

	"github.com/go-sql-driver/mysql"
	"github.com/joho/godotenv"
)

var db *sql.DB

func GetDB() *sql.DB {

	if db == nil {
		errenv := godotenv.Load()
		if errenv != nil {
			log.Fatal("Error loading .env file")
		}
		// Capture connection properties.
		cfg := mysql.NewConfig()
		cfg.User = os.Getenv("DB_USER")
		cfg.Passwd = os.Getenv("DB_PASS")
		cfg.Net = "tcp"
		cfg.Addr = os.Getenv("DB_HOST")
		cfg.DBName = os.Getenv("DB_NAME")

		// Get a database handle.
		var err error
		db, err = sql.Open("mysql", cfg.FormatDSN())
		if err != nil {
			log.Fatal(err)
		}

	}
	return db
}