package util

import (
	"database/sql"
	"fmt"
	"sync-block/er"

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

func ConnectDb(host, id, pw, dbName string) *sql.DB {
	db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s)/%s?parseTime=true",
		id, pw, host, dbName))
	er.Check(err)
	er.Check(db.Ping())
	return db
}

func NewNoopDB() DB {
	return &NoopDB{}
}