package db

import (
	"database/sql"
	"fmt"
	"time"

	_ "github.com/go-sql-driver/mysql"
)

func NewMySQL(dsn string) (*sql.DB, error) {
	db, err := sql.Open("mysql", dsn)
	if err != nil {
		return nil, fmt.Errorf("sql.Open: %w", err)
	}

	db.SetMaxOpenConns(25)
	db.SetMaxIdleConns(10)
	db.SetConnMaxLifetime(30 * time.Minute)
	db.SetConnMaxIdleTime(10 * time.Minute)

	if err := db.Ping(); err != nil {
		return nil, fmt.Errorf("db.Ping: %w", err)
	}

	return db, nil
}