feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/memory/variables/service/variables.go

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * 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 service
+
+import (
+	"context"
+
+	"github.com/coze-dev/coze-studio/backend/api/model/kvmemory"
+	"github.com/coze-dev/coze-studio/backend/api/model/project_memory"
+	"github.com/coze-dev/coze-studio/backend/domain/memory/variables/entity"
+)
+
+type Variables interface {
+	GetVariableMeta(ctx context.Context, bizID string, bizType project_memory.VariableConnector, version string) (*entity.VariablesMeta, error)
+	GetVariableMetaByID(ctx context.Context, id int64) (*entity.VariablesMeta, error)
+	GetAgentVariableMeta(ctx context.Context, agentID int64, version string) (*entity.VariablesMeta, error)
+	GetProjectVariablesMeta(ctx context.Context, projectID, version string) (*entity.VariablesMeta, error)
+	GetSysVariableConf(ctx context.Context) entity.SysConfVariables
+	UpsertMeta(ctx context.Context, e *entity.VariablesMeta) (int64, error)
+	UpsertProjectMeta(ctx context.Context, projectID, version string, userID int64, e *entity.VariablesMeta) (int64, error)
+	UpsertBotMeta(ctx context.Context, agentID int64, version string, userID int64, e *entity.VariablesMeta) (int64, error)
+	PublishMeta(ctx context.Context, variableMetaID int64, version string) (int64, error)
+
+	SetVariableInstance(ctx context.Context, e *entity.UserVariableMeta, items []*kvmemory.KVItem) ([]string, error)
+	GetVariableInstance(ctx context.Context, e *entity.UserVariableMeta, keywords []string) ([]*kvmemory.KVItem, error)
+	GetVariableChannelInstance(ctx context.Context, e *entity.UserVariableMeta, keywords []string, varChannel *project_memory.VariableChannel) ([]*kvmemory.KVItem, error)
+	DeleteVariableInstance(ctx context.Context, e *entity.UserVariableMeta, keywords []string) error
+	DeleteAllVariable(ctx context.Context, bizType project_memory.VariableConnector, bizID string) (err error)
+
+	DecryptSysUUIDKey(ctx context.Context, encryptSysUUIDKey string) *entity.VariableInstance
+}