able to get product

internal/common/config/ydb.go

@@ -0,0 +1,63 @@
+package config
+
+import (
+	"encoding/json"
+	"time"
+
+	"git.loyso.art/frx/kurious/internal/common/errors"
+)
+
+type YCAuth interface {
+	isYCAuth()
+}
+
+type YCAuthCAKeysFile struct{ Path string }
+
+func (YCAuthCAKeysFile) isYCAuth() {}
+
+type YCAuthIAMToken struct{ Token string }
+
+func (YCAuthIAMToken) isYCAuth() {}
+
+type YCAuthNone struct{}
+
+func (YCAuthNone) isYCAuth() {}
+
+type YDB struct {
+	DSN              string
+	Auth             YCAuth
+	ShutdownDuration time.Duration
+}
+
+func (ydb *YDB) UnmarshalJSON(data []byte) error {
+	type ydbConfig struct {
+		DSN              string   `json:"dsn"`
+		CAKeysFile       *string  `json:"ca_keys_file_path"`
+		StaticIAMToken   *string  `json:"static_iam_token"`
+		ShutdownDuration Duration `json:"duration"`
+	}
+
+	var imcfg ydbConfig
+	err := json.Unmarshal(data, &imcfg)
+	if err != nil {
+		return err
+	}
+
+	ydb.DSN = imcfg.DSN
+	ydb.ShutdownDuration = imcfg.ShutdownDuration.Std()
+	if imcfg.CAKeysFile != nil && imcfg.StaticIAMToken != nil {
+		return errors.NewValidationError("ca_keys_file_path", "could not be set together with static_iam_token field")
+	} else if imcfg.CAKeysFile != nil {
+		ydb.Auth = YCAuthCAKeysFile{
+			Path: *imcfg.CAKeysFile,
+		}
+	} else if imcfg.StaticIAMToken != nil {
+		ydb.Auth = YCAuthIAMToken{
+			Token: *imcfg.StaticIAMToken,
+		}
+	} else {
+		ydb.Auth = YCAuthNone{}
+	}
+
+	return nil
+}