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348 lines
9.4 KiB
348 lines
9.4 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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"encoding/json"
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"errors"
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"hash/crc32"
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"strconv"
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"time"
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"github.com/OpenIMSDK/tools/log"
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"github.com/OpenIMSDK/protocol/constant"
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"github.com/OpenIMSDK/protocol/user"
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"github.com/OpenIMSDK/tools/errs"
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"github.com/dtm-labs/rockscache"
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"github.com/redis/go-redis/v9"
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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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userExpireTime = time.Second * 60 * 60 * 12
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userInfoKey = "USER_INFO:"
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userGlobalRecvMsgOptKey = "USER_GLOBAL_RECV_MSG_OPT_KEY:"
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olineStatusKey = "ONLINE_STATUS:"
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userOlineStatusExpireTime = time.Second * 60 * 60 * 24
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statusMod = 501
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platformID = "_PlatformIDSuffix"
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)
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type UserCache interface {
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metaCache
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NewCache() UserCache
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GetUserInfo(ctx context.Context, userID string) (userInfo *relationtb.UserModel, err error)
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GetUsersInfo(ctx context.Context, userIDs []string) ([]*relationtb.UserModel, error)
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DelUsersInfo(userIDs ...string) UserCache
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GetUserGlobalRecvMsgOpt(ctx context.Context, userID string) (opt int, err error)
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DelUsersGlobalRecvMsgOpt(userIDs ...string) UserCache
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GetUserStatus(ctx context.Context, userIDs []string) ([]*user.OnlineStatus, error)
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SetUserStatus(ctx context.Context, userID string, status, platformID int32) error
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}
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type UserCacheRedis struct {
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metaCache
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rdb redis.UniversalClient
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userDB relationtb.UserModelInterface
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expireTime time.Duration
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rcClient *rockscache.Client
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}
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func NewUserCacheRedis(
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rdb redis.UniversalClient,
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userDB relationtb.UserModelInterface,
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options rockscache.Options,
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) UserCache {
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rcClient := rockscache.NewClient(rdb, options)
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return &UserCacheRedis{
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rdb: rdb,
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metaCache: NewMetaCacheRedis(rcClient),
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userDB: userDB,
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expireTime: userExpireTime,
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rcClient: rcClient,
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}
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}
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func (u *UserCacheRedis) NewCache() UserCache {
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return &UserCacheRedis{
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rdb: u.rdb,
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metaCache: NewMetaCacheRedis(u.rcClient, u.metaCache.GetPreDelKeys()...),
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userDB: u.userDB,
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expireTime: u.expireTime,
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rcClient: u.rcClient,
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}
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}
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func (u *UserCacheRedis) getUserInfoKey(userID string) string {
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return userInfoKey + userID
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}
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func (u *UserCacheRedis) getUserGlobalRecvMsgOptKey(userID string) string {
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return userGlobalRecvMsgOptKey + userID
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}
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func (u *UserCacheRedis) GetUserInfo(ctx context.Context, userID string) (userInfo *relationtb.UserModel, err error) {
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return getCache(
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ctx,
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u.rcClient,
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u.getUserInfoKey(userID),
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u.expireTime,
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func(ctx context.Context) (*relationtb.UserModel, error) {
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return u.userDB.Take(ctx, userID)
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},
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)
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}
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func (u *UserCacheRedis) GetUsersInfo(ctx context.Context, userIDs []string) ([]*relationtb.UserModel, error) {
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//var keys []string
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//for _, userID := range userIDs {
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// keys = append(keys, u.getUserInfoKey(userID))
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//}
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//return batchGetCache(
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// ctx,
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// u.rcClient,
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// keys,
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// u.expireTime,
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// func(user *relationtb.UserModel, keys []string) (int, error) {
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// for i, key := range keys {
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// if key == u.getUserInfoKey(user.UserID) {
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// return i, nil
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// }
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// }
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// return 0, errIndex
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// },
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// func(ctx context.Context) ([]*relationtb.UserModel, error) {
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// return u.userDB.Find(ctx, userIDs)
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// },
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//)
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return batchGetCache2(ctx, u.rcClient, u.expireTime, userIDs, func(userID string) string {
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return u.getUserInfoKey(userID)
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}, func(ctx context.Context, userID string) (*relationtb.UserModel, error) {
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return u.userDB.Take(ctx, userID)
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})
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}
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func (u *UserCacheRedis) DelUsersInfo(userIDs ...string) UserCache {
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keys := make([]string, 0, len(userIDs))
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for _, userID := range userIDs {
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keys = append(keys, u.getUserInfoKey(userID))
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}
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cache := u.NewCache()
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cache.AddKeys(keys...)
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return cache
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}
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func (u *UserCacheRedis) GetUserGlobalRecvMsgOpt(ctx context.Context, userID string) (opt int, err error) {
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return getCache(
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ctx,
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u.rcClient,
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u.getUserGlobalRecvMsgOptKey(userID),
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u.expireTime,
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func(ctx context.Context) (int, error) {
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return u.userDB.GetUserGlobalRecvMsgOpt(ctx, userID)
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},
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)
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}
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func (u *UserCacheRedis) DelUsersGlobalRecvMsgOpt(userIDs ...string) UserCache {
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keys := make([]string, 0, len(userIDs))
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for _, userID := range userIDs {
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keys = append(keys, u.getUserGlobalRecvMsgOptKey(userID))
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}
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cache := u.NewCache()
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cache.AddKeys(keys...)
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return cache
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}
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// GetUserStatus get user status.
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func (u *UserCacheRedis) GetUserStatus(ctx context.Context, userIDs []string) ([]*user.OnlineStatus, error) {
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userStatus := make([]*user.OnlineStatus, 0, len(userIDs))
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for _, userID := range userIDs {
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UserIDNum := crc32.ChecksumIEEE([]byte(userID))
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modKey := strconv.Itoa(int(UserIDNum % statusMod))
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var onlineStatus user.OnlineStatus
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key := olineStatusKey + modKey
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result, err := u.rdb.HGet(ctx, key, userID).Result()
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if err != nil {
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if errors.Is(err, redis.Nil) {
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// key or field does not exist
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userStatus = append(userStatus, &user.OnlineStatus{
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UserID: userID,
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Status: constant.Offline,
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PlatformIDs: nil,
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})
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continue
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} else {
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return nil, errs.Wrap(err)
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}
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}
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err = json.Unmarshal([]byte(result), &onlineStatus)
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if err != nil {
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return nil, errs.Wrap(err)
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}
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onlineStatus.UserID = userID
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onlineStatus.Status = constant.Online
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userStatus = append(userStatus, &onlineStatus)
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}
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return userStatus, nil
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}
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// SetUserStatus Set the user status and save it in redis.
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func (u *UserCacheRedis) SetUserStatus(ctx context.Context, userID string, status, platformID int32) error {
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UserIDNum := crc32.ChecksumIEEE([]byte(userID))
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modKey := strconv.Itoa(int(UserIDNum % statusMod))
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key := olineStatusKey + modKey
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log.ZDebug(ctx, "SetUserStatus args", "userID", userID, "status", status,
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"platformID", platformID, "modKey", modKey, "key", key)
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isNewKey, err := u.rdb.Exists(ctx, key).Result()
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if err != nil {
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return errs.Wrap(err)
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}
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if isNewKey == 0 {
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if status == constant.Online {
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onlineStatus := user.OnlineStatus{
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UserID: userID,
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Status: constant.Online,
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PlatformIDs: []int32{platformID},
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}
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jsonData, err2 := json.Marshal(&onlineStatus)
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if err2 != nil {
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return errs.Wrap(err2)
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}
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_, err2 = u.rdb.HSet(ctx, key, userID, string(jsonData)).Result()
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if err2 != nil {
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return errs.Wrap(err2)
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}
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u.rdb.Expire(ctx, key, userOlineStatusExpireTime)
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return nil
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}
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}
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isNil := false
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result, err := u.rdb.HGet(ctx, key, userID).Result()
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if err != nil {
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if errors.Is(err, redis.Nil) {
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isNil = true
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} else {
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return errs.Wrap(err)
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}
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}
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if status == constant.Offline {
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err = u.refreshStatusOffline(ctx, userID, status, platformID, isNil, err, result, key)
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if err != nil {
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return err
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}
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} else {
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err = u.refreshStatusOnline(ctx, userID, platformID, isNil, err, result, key)
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if err != nil {
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return errs.Wrap(err)
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}
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}
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return nil
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}
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func (u *UserCacheRedis) refreshStatusOffline(ctx context.Context, userID string, status, platformID int32, isNil bool, err error, result, key string) error {
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if isNil {
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log.ZWarn(ctx, "this user not online,maybe trigger order not right",
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err, "userStatus", status)
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return nil
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}
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var onlineStatus user.OnlineStatus
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err = json.Unmarshal([]byte(result), &onlineStatus)
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if err != nil {
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return errs.Wrap(err)
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}
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var newPlatformIDs []int32
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for _, val := range onlineStatus.PlatformIDs {
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if val != platformID {
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newPlatformIDs = append(newPlatformIDs, val)
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}
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}
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if newPlatformIDs == nil {
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_, err = u.rdb.HDel(ctx, key, userID).Result()
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if err != nil {
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return errs.Wrap(err)
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}
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} else {
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onlineStatus.PlatformIDs = newPlatformIDs
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newjsonData, err := json.Marshal(&onlineStatus)
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if err != nil {
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return errs.Wrap(err)
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}
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_, err = u.rdb.HSet(ctx, key, userID, string(newjsonData)).Result()
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if err != nil {
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return errs.Wrap(err)
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}
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}
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return nil
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}
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func (u *UserCacheRedis) refreshStatusOnline(ctx context.Context, userID string, platformID int32, isNil bool, err error, result, key string) error {
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var onlineStatus user.OnlineStatus
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if !isNil {
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err2 := json.Unmarshal([]byte(result), &onlineStatus)
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if err != nil {
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return errs.Wrap(err2)
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}
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onlineStatus.PlatformIDs = RemoveRepeatedElementsInList(append(onlineStatus.PlatformIDs, platformID))
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} else {
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onlineStatus.PlatformIDs = append(onlineStatus.PlatformIDs, platformID)
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}
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onlineStatus.Status = constant.Online
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onlineStatus.UserID = userID
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newjsonData, err := json.Marshal(&onlineStatus)
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if err != nil {
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return errs.Wrap(err)
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}
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_, err = u.rdb.HSet(ctx, key, userID, string(newjsonData)).Result()
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if err != nil {
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return errs.Wrap(err)
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}
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return nil
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}
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type Comparable interface {
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~int | ~string | ~float64 | ~int32
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}
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func RemoveRepeatedElementsInList[T Comparable](slc []T) []T {
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var result []T
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tempMap := map[T]struct{}{}
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for _, e := range slc {
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if _, found := tempMap[e]; !found {
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tempMap[e] = struct{}{}
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result = append(result, e)
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}
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}
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return result
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}
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