package singleton

import (
	"database/sql"
	"fmt"
	"sync"
)

var connector *sql.DB
var once sync.Once

func OpenConnection() *sql.DB {
	once.Do(func() {
		fmt.Println("Creating Single Instance Now")
		StartSqlConnection()
	})

	return connector
}

func StartSqlConnection() {
	var err error
	connector, err = sql.Open("mysql", "lupik:.wilk231@/books")

	if err != nil {
		panic(err)
	}
}