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66 lines
1.8 KiB
66 lines
1.8 KiB
package cache
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import (
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"Open_IM/pkg/common/db/relation"
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"Open_IM/pkg/common/tracelog"
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"Open_IM/pkg/utils"
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"context"
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"encoding/json"
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"github.com/dtm-labs/rockscache"
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"github.com/go-redis/redis/v8"
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"time"
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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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)
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type FriendCache struct {
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friendDB *relation.Friend
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expireTime time.Duration
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rcClient *rockscache.Client
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}
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func NewFriendCache(rdb redis.UniversalClient, friendDB *relation.Friend, options rockscache.Options) *FriendCache {
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return &FriendCache{
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friendDB: friendDB,
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expireTime: friendExpireTime,
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rcClient: rockscache.NewClient(rdb, options),
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}
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}
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func (f *FriendCache) getFriendRelationKey(ownerUserID string) string {
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return friendIDsKey + ownerUserID
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}
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func (f *FriendCache) GetFriendIDs(ctx context.Context, ownerUserID string) (friendIDs []string, err error) {
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getFriendIDList := func() (string, error) {
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friendIDList, err := f.friendDB.GetFriendIDs(ctx, ownerUserID)
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if err != nil {
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return "", err
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}
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bytes, err := json.Marshal(friendIDList)
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if err != nil {
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return "", utils.Wrap(err, "")
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}
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return string(bytes), nil
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}
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defer func() {
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tracelog.SetCtxDebug(ctx, utils.GetFuncName(1), err, "ownerUserID", ownerUserID, "friendIDs", friendIDs)
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}()
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friendIDListStr, err := f.rcClient.Fetch(f.getFriendRelationKey(ownerUserID), f.expireTime, getFriendIDList)
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if err != nil {
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return nil, err
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}
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err = json.Unmarshal([]byte(friendIDListStr), &friendIDs)
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return friendIDs, utils.Wrap(err, "")
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}
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func (f *FriendCache) DelFriendIDs(ctx context.Context, ownerUserID string) (err error) {
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defer func() {
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tracelog.SetCtxDebug(ctx, utils.GetFuncName(1), err, "ownerUserID", ownerUserID)
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}()
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return f.rcClient.TagAsDeleted(f.getFriendRelationKey(ownerUserID))
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}
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