start with xorm

server/database/interface.go

@@ -13,3 +13,11 @@ type CertDB interface {
 	Compact() (string, error)
 	Items() *pogreb.ItemIterator
 }
+
+type Cert struct {
+	Domain    string `xorm:"pk NOT NULL"`
+	Created   int64  `xorm:"created NOT NULL DEFAULT 0"`
+	Updated   int64  `xorm:"updated NOT NULL DEFAULT 0"`
+	ValidTill int64  `xorm:"NOT NULL DEFAULT 0"`
+	Raw       []byte `xorm:"NOT NULL"`
+}

server/database/xorm.go

@@ -0,0 +1,84 @@
+package database
+
+import (
+	"fmt"
+
+	"github.com/akrylysov/pogreb"
+	"github.com/go-acme/lego/v4/certificate"
+	"xorm.io/xorm"
+
+	// register sql driver
+	_ "github.com/go-sql-driver/mysql"
+	_ "github.com/lib/pq"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+var _ CertDB = xDB{}
+
+type xDB struct {
+	engine *xorm.Engine
+}
+
+func NewXormDB(dbType, dbConn string) (CertDB, error) {
+	if !supportedDriver(dbType) {
+		return nil, fmt.Errorf("not supported db type '%s'", dbType)
+	}
+
+	e, err := xorm.NewEngine(dbType, dbConn)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := e.Sync2(new(Cert)); err != nil {
+		return nil, fmt.Errorf("cound not sync db model :%w", err)
+	}
+
+	return &xDB{
+		engine: e,
+	}, nil
+}
+
+func (x xDB) Close() error {
+	return x.engine.Close()
+}
+
+func (x xDB) Put(name string, cert *certificate.Resource) error {
+	// TODO implement me
+	panic("implement me")
+}
+
+func (x xDB) Get(name string) (*certificate.Resource, error) {
+	// TODO implement me
+	panic("implement me")
+}
+
+func (x xDB) Delete(key string) error {
+	// TODO implement me
+	panic("implement me")
+}
+
+func (x xDB) Compact() (string, error) {
+	// TODO implement me
+	panic("implement me")
+}
+
+func (x xDB) Items() *pogreb.ItemIterator {
+	// TODO implement me
+	panic("implement me")
+}
+
+// Supported database drivers
+const (
+	DriverSqlite   = "sqlite3"
+	DriverMysql    = "mysql"
+	DriverPostgres = "postgres"
+)
+
+func supportedDriver(driver string) bool {
+	switch driver {
+	case DriverMysql, DriverPostgres, DriverSqlite:
+		return true
+	default:
+		return false
+	}
+}