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117 lines
3.7 KiB
117 lines
3.7 KiB
package cache
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import (
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"context"
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"time"
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relationTb "github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/table/relation"
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"github.com/OpenIMSDK/Open-IM-Server/pkg/utils"
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"github.com/dtm-labs/rockscache"
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"github.com/go-redis/redis/v8"
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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 cache
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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 cache
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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{rcClient: c.rcClient, metaCache: NewMetaCacheRedis(c.rcClient, c.metaCache.GetPreDelKeys()...), friendDB: c.friendDB, expireTime: c.expireTime}
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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(ownerUserID ...string) FriendCache {
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new := f.NewCache()
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var keys []string
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for _, userID := range ownerUserID {
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keys = append(keys, f.getFriendIDsKey(userID))
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}
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new.AddKeys(keys...)
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return new
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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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new := f.NewCache()
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new.AddKeys(f.getTwoWayFriendsIDsKey(ownerUserID))
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return new
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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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new := f.NewCache()
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new.AddKeys(f.getFriendKey(ownerUserID, friendUserID))
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return new
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}
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