package database

import (
	"errors"
	"fmt"
	"gorm.io/driver/mysql"
	"gorm.io/gorm"
)

var mysqlDsn = "%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local"

func MysqlDialector(configMap map[string]string) (dialector gorm.Dialector, err error) {
	host, okHost := configMap["host"]
	port, okPort := configMap["port"]
	username, okUsername := configMap["username"]
	password, okPwd := configMap["password"]
	dbName, okDbName := configMap["dbname"]
	if !okHost || !okPort || !okUsername || !okPwd || !okDbName {
		err = errors.New(fmt.Sprintf("数据库[%s:%s]配置错误", host, port))
		return
	}
	dialector = mysql.Open(fmt.Sprintf(mysqlDsn, username, password, host, port, dbName))
	return
}