// 2019 Rackspace, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.

package raxSQL

import (
	"database/sql"
	"fmt"

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

// NewMySQL takes a MySql database name and a passwordsafe Credential type.
// It will initialize a MySql connection to the DB and test connectivity.
func NewMySQL(h Host, dbName string, c user, opts ...Option) (*Client, error) {
	if c == nil {
		return nil, ErrNoKey
	}
	// Create the client and apply any options
	client := &Client{
		port:    mySqlPort,
		scheme:  mySqlScheme,
		timeout: 240,
	}
	for _, opt := range opts {
		opt(client)
	}
	user, pass := c.Creds()

	var err error
	client.DB, err = sql.Open(client.scheme, fmt.Sprintf("%v:%v@tcp(%v:%v)/%v", user, pass, h, client.port, dbName))
	if err != nil {
		return nil, ErrSQLOpen
	}

	// The Open sql method doesn't actually open a connection to the DB
	// To validate DSN data, we can use the Ping method with a sql.DB receiver
	if err = client.DB.Ping(); err != nil {
		return nil, ErrSQLPing
	}
	return client, nil
}