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Open-IM-Server/pkg/common/db/cache/friend.go

129 lines
3.8 KiB

package cache
import (
"Open_IM/pkg/common/db/relation"
relation2 "Open_IM/pkg/common/db/table/relation"
"Open_IM/pkg/common/tracelog"
"Open_IM/pkg/utils"
"context"
"encoding/json"
"github.com/dtm-labs/rockscache"
"github.com/go-redis/redis/v8"
"time"
)
const (
friendExpireTime = time.Second * 60 * 60 * 12
friendIDsKey = "FRIEND_IDS:"
TwoWayFriendsIDsKey = "COMMON_FRIENDS_IDS:"
friendKey = "FRIEND_INFO:"
)
type FriendCache struct {
friendDB *relation.FriendGorm
expireTime time.Duration
rcClient *rockscache.Client
}
func NewFriendCache(rdb redis.UniversalClient, friendDB *relation.FriendGorm, options rockscache.Options) *FriendCache {
return &FriendCache{
friendDB: friendDB,
expireTime: friendExpireTime,
rcClient: rockscache.NewClient(rdb, options),
}
}
func (f *FriendCache) getFriendIDsKey(ownerUserID string) string {
return friendIDsKey + ownerUserID
}
func (f *FriendCache) getTwoWayFriendsIDsKey(ownerUserID string) string {
return TwoWayFriendsIDsKey + ownerUserID
}
func (f *FriendCache) getFriendKey(ownerUserID, friendUserID string) string {
return friendKey + ownerUserID + "-" + friendUserID
}
func (f *FriendCache) GetFriendIDs(ctx context.Context, ownerUserID string) (friendIDs []string, err error) {
getFriendIDs := func() (string, error) {
friendIDs, err := f.friendDB.GetFriendIDs(ctx, ownerUserID)
if err != nil {
return "", err
}
bytes, err := json.Marshal(friendIDs)
if err != nil {
return "", utils.Wrap(err, "")
}
return string(bytes), nil
}
defer func() {
tracelog.SetCtxDebug(ctx, utils.GetFuncName(1), err, "ownerUserID", ownerUserID, "friendIDs", friendIDs)
}()
friendIDsStr, err := f.rcClient.Fetch(f.getFriendIDsKey(ownerUserID), f.expireTime, getFriendIDs)
if err != nil {
return nil, err
}
err = json.Unmarshal([]byte(friendIDsStr), &friendIDs)
return friendIDs, utils.Wrap(err, "")
}
func (f *FriendCache) DelFriendIDs(ctx context.Context, ownerUserID string) (err error) {
defer func() {
tracelog.SetCtxDebug(ctx, utils.GetFuncName(1), err, "ownerUserID", ownerUserID)
}()
return f.rcClient.TagAsDeleted(f.getFriendIDsKey(ownerUserID))
}
func (f *FriendCache) GetTwoWayFriendIDs(ctx context.Context, ownerUserID string) (twoWayFriendIDs []string, err error) {
friendIDs, err := f.GetFriendIDs(ctx, ownerUserID)
if err != nil {
return nil, err
}
for _, friendID := range friendIDs {
friendFriendID, err := f.GetFriendIDs(ctx, friendID)
if err != nil {
return nil, err
}
if utils.IsContain(ownerUserID, friendFriendID) {
twoWayFriendIDs = append(twoWayFriendIDs, ownerUserID)
}
}
return twoWayFriendIDs, nil
}
func (f *FriendCache) DelTwoWayFriendIDs(ctx context.Context, ownerUserID string) (err error) {
defer func() {
tracelog.SetCtxDebug(ctx, utils.GetFuncName(1), err, "ownerUserID", ownerUserID)
}()
return f.rcClient.TagAsDeleted(f.getTwoWayFriendsIDsKey(ownerUserID))
}
func (f *FriendCache) GetFriend(ctx context.Context, ownerUserID, friendUserID string) (friend *relation2.FriendModel, err error) {
getFriend := func() (string, error) {
friend, err = f.friendDB.Take(ctx, ownerUserID, friendUserID)
if err != nil {
return "", err
}
bytes, err := json.Marshal(friend)
if err != nil {
return "", utils.Wrap(err, "")
}
return string(bytes), nil
}
friendStr, err := f.rcClient.Fetch(f.getFriendKey(ownerUserID, friendUserID), f.expireTime, getFriend)
if err != nil {
return nil, err
}
friend = &relation2.FriendModel{}
err = json.Unmarshal([]byte(friendStr), friend)
return friend, utils.Wrap(err, "")
}
func (f *FriendCache) DelFriend(ctx context.Context, ownerUserID, friendUserID string) (err error) {
defer func() {
tracelog.SetCtxDebug(ctx, utils.GetFuncName(1), err, "ownerUserID", ownerUserID, "friendUserID", friendUserID)
}()
return f.rcClient.TagAsDeleted(f.getFriendKey(ownerUserID, friendUserID))
}