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143 lines
4.5 KiB
143 lines
4.5 KiB
// Copyright © 2023 OpenIM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cache
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import (
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"context"
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"time"
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"github.com/dtm-labs/rockscache"
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"github.com/redis/go-redis/v9"
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"github.com/OpenIMSDK/tools/utils"
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relationtb "github.com/openimsdk/open-im-server/v3/pkg/common/db/table/relation"
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)
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const (
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friendExpireTime = time.Second * 60 * 60 * 12
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friendIDsKey = "FRIEND_IDS:"
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TwoWayFriendsIDsKey = "COMMON_FRIENDS_IDS:"
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friendKey = "FRIEND_INFO:"
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)
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// args fn will exec when no data in msgCache.
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type FriendCache interface {
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metaCache
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NewCache() FriendCache
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GetFriendIDs(ctx context.Context, ownerUserID string) (friendIDs []string, err error)
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// call when friendID List changed
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DelFriendIDs(ownerUserID ...string) FriendCache
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// get single friendInfo from msgCache
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GetFriend(ctx context.Context, ownerUserID, friendUserID string) (friend *relationtb.FriendModel, err error)
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// del friend when friend info changed
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DelFriend(ownerUserID, friendUserID string) FriendCache
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}
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type FriendCacheRedis struct {
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metaCache
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friendDB relationtb.FriendModelInterface
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expireTime time.Duration
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rcClient *rockscache.Client
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}
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func NewFriendCacheRedis(rdb redis.UniversalClient, friendDB relationtb.FriendModelInterface, options rockscache.Options) FriendCache {
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rcClient := rockscache.NewClient(rdb, options)
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return &FriendCacheRedis{
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metaCache: NewMetaCacheRedis(rcClient),
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friendDB: friendDB,
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expireTime: friendExpireTime,
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rcClient: rcClient,
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}
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}
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func (c *FriendCacheRedis) NewCache() FriendCache {
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return &FriendCacheRedis{
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rcClient: c.rcClient,
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metaCache: NewMetaCacheRedis(c.rcClient, c.metaCache.GetPreDelKeys()...),
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friendDB: c.friendDB,
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expireTime: c.expireTime,
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}
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}
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func (f *FriendCacheRedis) getFriendIDsKey(ownerUserID string) string {
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return friendIDsKey + ownerUserID
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}
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func (f *FriendCacheRedis) getTwoWayFriendsIDsKey(ownerUserID string) string {
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return TwoWayFriendsIDsKey + ownerUserID
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}
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func (f *FriendCacheRedis) getFriendKey(ownerUserID, friendUserID string) string {
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return friendKey + ownerUserID + "-" + friendUserID
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}
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func (f *FriendCacheRedis) GetFriendIDs(ctx context.Context, ownerUserID string) (friendIDs []string, err error) {
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return getCache(ctx, f.rcClient, f.getFriendIDsKey(ownerUserID), f.expireTime, func(ctx context.Context) ([]string, error) {
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return f.friendDB.FindFriendUserIDs(ctx, ownerUserID)
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})
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}
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func (f *FriendCacheRedis) DelFriendIDs(ownerUserIDs ...string) FriendCache {
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newGroupCache := f.NewCache()
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keys := make([]string, 0, len(ownerUserIDs))
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for _, userID := range ownerUserIDs {
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keys = append(keys, f.getFriendIDsKey(userID))
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}
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newGroupCache.AddKeys(keys...)
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return newGroupCache
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}
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// todo.
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func (f *FriendCacheRedis) GetTwoWayFriendIDs(ctx context.Context, ownerUserID string) (twoWayFriendIDs []string, err error) {
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friendIDs, err := f.GetFriendIDs(ctx, ownerUserID)
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if err != nil {
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return nil, err
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}
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for _, friendID := range friendIDs {
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friendFriendID, err := f.GetFriendIDs(ctx, friendID)
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if err != nil {
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return nil, err
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}
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if utils.IsContain(ownerUserID, friendFriendID) {
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twoWayFriendIDs = append(twoWayFriendIDs, ownerUserID)
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}
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}
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return twoWayFriendIDs, nil
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}
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func (f *FriendCacheRedis) DelTwoWayFriendIDs(ctx context.Context, ownerUserID string) FriendCache {
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newFriendCache := f.NewCache()
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newFriendCache.AddKeys(f.getTwoWayFriendsIDsKey(ownerUserID))
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return newFriendCache
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}
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func (f *FriendCacheRedis) GetFriend(ctx context.Context, ownerUserID, friendUserID string) (friend *relationtb.FriendModel, err error) {
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return getCache(ctx, f.rcClient, f.getFriendKey(ownerUserID, friendUserID), f.expireTime, func(ctx context.Context) (*relationtb.FriendModel, error) {
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return f.friendDB.Take(ctx, ownerUserID, friendUserID)
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})
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}
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func (f *FriendCacheRedis) DelFriend(ownerUserID, friendUserID string) FriendCache {
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newFriendCache := f.NewCache()
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newFriendCache.AddKeys(f.getFriendKey(ownerUserID, friendUserID))
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return newFriendCache
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}
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