accounts-profiles-endpoint/internal/db/mysql/mysql.go
2024-10-01 01:41:29 +02:00

94 lines
2.4 KiB
Go

package mysql
import (
"context"
"database/sql"
"errors"
"fmt"
_ "github.com/go-sql-driver/mysql"
"github.com/spf13/viper"
)
type MySQL struct {
db *sql.DB
findUsernameByUuidStmt *sql.Stmt
findUuidAndUsernameByUsernameStmt *sql.Stmt
}
func New(protocol string, host string, port uint, dbName string, user string, password string) (*MySQL, error) {
db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@%s(%s:%d)/%s", user, password, protocol, host, port, dbName))
if err != nil {
return nil, err
}
findUsernameByUuidStmt, err := db.Prepare(`
SELECT username
FROM accounts
WHERE uuid = ?
AND status = 10
LIMIT 1
`)
if err != nil {
return nil, fmt.Errorf("unable to prepare find username by uuid query: %w", err)
}
findUuidAndUsernameByUsernameStmt, err := db.Prepare(`
SELECT uuid, username
FROM accounts
WHERE username = ?
AND status = 10
LIMIT 1
`)
if err != nil {
return nil, fmt.Errorf("unable to prepare find uuid by username query: %w", err)
}
return &MySQL{db, findUsernameByUuidStmt, findUuidAndUsernameByUsernameStmt}, nil
}
func NewWithConfig(config *viper.Viper) (*MySQL, error) {
config.SetDefault("db.mysql.user", "root")
config.SetDefault("db.mysql.password", "")
config.SetDefault("db.mysql.host", "localhost")
config.SetDefault("db.mysql.port", 3306)
config.SetDefault("db.mysql.protocol", "tcp")
return New(
config.GetString("db.mysql.protocol"),
config.GetString("db.mysql.host"),
config.GetUint("db.mysql.port"),
config.GetString("db.mysql.database"),
config.GetString("db.mysql.user"),
config.GetString("db.mysql.password"),
)
}
func (m *MySQL) FindUsernameByUuid(ctx context.Context, uuid string) (string, error) {
var username string
err := m.findUsernameByUuidStmt.QueryRowContext(ctx, uuid).Scan(&username)
if errors.Is(err, sql.ErrNoRows) {
return "", nil
} else if err != nil {
return "", err
}
return username, nil
}
func (m *MySQL) FindUuidByUsername(ctx context.Context, username string) (string, string, error) {
var uuid, casedUsername string
err := m.findUuidAndUsernameByUsernameStmt.QueryRowContext(ctx, username).Scan(&uuid, &casedUsername)
if errors.Is(err, sql.ErrNoRows) {
return "", "", nil
} else if err != nil {
return "", "", err
}
return uuid, casedUsername, nil
}
func (m *MySQL) Ping(ctx context.Context) error {
return m.db.PingContext(ctx)
}