refactor: db refactor and cache key add. (#2320)

* refactor: db refactor and cache key add.

* refactor: db refactor and cache key add.

* refactor: go version update.

* refactor: file name change.

pkg/common/storage/cache/friend.go

@@ -0,0 +1,35 @@
+// Copyright © 2023 OpenIM. All rights reserved.
+//
+// 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 cache
+
+import (
+	"context"
+	relationtb "github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
+)
+
+// FriendCache is an interface for caching friend-related data.
+type FriendCache interface {
+	BatchDeleter
+	CloneFriendCache() FriendCache
+	GetFriendIDs(ctx context.Context, ownerUserID string) (friendIDs []string, err error)
+	// Called when friendID list changed
+	DelFriendIDs(ownerUserID ...string) FriendCache
+	// Get single friendInfo from the cache
+	GetFriend(ctx context.Context, ownerUserID, friendUserID string) (friend *relationtb.Friend, err error)
+	// Delete friend when friend info changed
+	DelFriend(ownerUserID, friendUserID string) FriendCache
+	// Delete friends when friends' info changed
+	DelFriends(ownerUserID string, friendUserIDs []string) FriendCache
+}