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kim.dev.6789
231
pkg/common/storage/database/mgo/wallet.go
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231
pkg/common/storage/database/mgo/wallet.go
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// 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 mgo
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import (
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"context"
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"time"
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"git.imall.cloud/openim/open-im-server-deploy/pkg/common/storage/database"
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"git.imall.cloud/openim/open-im-server-deploy/pkg/common/storage/model"
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"github.com/openimsdk/tools/db/mongoutil"
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"github.com/openimsdk/tools/db/pagination"
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"github.com/openimsdk/tools/errs"
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"go.mongodb.org/mongo-driver/bson"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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)
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// WalletMgo implements Wallet using MongoDB as the storage backend.
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type WalletMgo struct {
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coll *mongo.Collection
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}
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// NewWalletMongo creates a new instance of WalletMgo with the provided MongoDB database.
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func NewWalletMongo(db *mongo.Database) (database.Wallet, error) {
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coll := db.Collection(database.WalletName)
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_, err := coll.Indexes().CreateMany(context.Background(), []mongo.IndexModel{
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{
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Keys: bson.D{{Key: "user_id", Value: 1}},
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Options: options.Index().SetUnique(true),
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},
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{
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Keys: bson.D{{Key: "create_time", Value: -1}},
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},
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{
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Keys: bson.D{{Key: "update_time", Value: -1}},
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},
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})
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if err != nil {
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return nil, err
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}
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return &WalletMgo{coll: coll}, nil
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}
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// Create creates a new wallet record.
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func (w *WalletMgo) Create(ctx context.Context, wallet *model.Wallet) error {
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if wallet.CreateTime.IsZero() {
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wallet.CreateTime = time.Now()
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}
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if wallet.UpdateTime.IsZero() {
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wallet.UpdateTime = time.Now()
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}
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if wallet.Version == 0 {
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wallet.Version = 1
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}
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return mongoutil.InsertOne(ctx, w.coll, wallet)
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}
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// Take retrieves a wallet by user ID. Returns an error if not found.
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func (w *WalletMgo) Take(ctx context.Context, userID string) (*model.Wallet, error) {
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return mongoutil.FindOne[*model.Wallet](ctx, w.coll, bson.M{"user_id": userID})
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}
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// UpdateBalance updates the balance of a wallet.
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func (w *WalletMgo) UpdateBalance(ctx context.Context, userID string, balance int64) error {
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update := bson.M{
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"$set": bson.M{
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"balance": balance,
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"update_time": time.Now(),
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},
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}
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return mongoutil.UpdateOne(ctx, w.coll, bson.M{"user_id": userID}, update, false)
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}
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// UpdateBalanceByAmount updates the balance by adding/subtracting an amount.
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func (w *WalletMgo) UpdateBalanceByAmount(ctx context.Context, userID string, amount int64) error {
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update := bson.M{
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"$inc": bson.M{
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"balance": amount,
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},
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"$set": bson.M{
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"update_time": time.Now(),
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},
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}
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return mongoutil.UpdateOne(ctx, w.coll, bson.M{"user_id": userID}, update, false)
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}
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// UpdateBalanceWithVersion 使用版本号更新余额（防止并发覆盖）
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func (w *WalletMgo) UpdateBalanceWithVersion(ctx context.Context, params *database.WalletUpdateParams) (*database.WalletUpdateResult, error) {
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// 基于单文档原子操作，避免并发覆盖
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if params.Amount < 0 {
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return nil, errs.ErrArgs.WrapMsg("amount cannot be negative")
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}
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// 兼容旧数据（无 version 字段或 version=0）
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filter := bson.M{
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"user_id": params.UserID,
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"$or": []bson.M{
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{"version": params.OldVersion},
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{"version": bson.M{"$exists": false}},
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{"version": 0},
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},
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}
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// 默认更新：更新时间、版本号自增
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update := bson.M{
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"$set": bson.M{
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"update_time": time.Now(),
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},
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"$inc": bson.M{
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"version": 1,
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},
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}
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switch params.Operation {
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case "add":
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update["$inc"].(bson.M)["balance"] = params.Amount
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case "subtract":
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update["$inc"].(bson.M)["balance"] = -params.Amount
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// 防止出现负数，过滤条件要求当前余额 >= amount
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filter["balance"] = bson.M{"$gte": params.Amount}
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case "set":
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// 直接设置余额，同时递增版本
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delete(update, "$inc")
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update["$set"].(bson.M)["balance"] = params.Amount
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update["$set"].(bson.M)["version"] = params.OldVersion + 1
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default:
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return nil, errs.ErrArgs.WrapMsg("invalid operation: " + params.Operation)
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}
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// 如果 set 分支删除了 $inc，需要补上版本递增
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if _, ok := update["$inc"]; !ok {
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update["$inc"] = bson.M{"version": 1}
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} else if _, ok := update["$inc"].(bson.M)["version"]; !ok {
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update["$inc"].(bson.M)["version"] = 1
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}
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// 使用 findOneAndUpdate 返回更新后的文档
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opts := options.FindOneAndUpdate().SetReturnDocument(options.After)
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var updatedWallet model.Wallet
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err := w.coll.FindOneAndUpdate(ctx, filter, update, opts).Decode(&updatedWallet)
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if err != nil {
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if err == mongo.ErrNoDocuments {
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// 版本号或余额不匹配，说明有并发修改
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return nil, errs.ErrInternalServer.WrapMsg("concurrent modification detected: version or balance mismatch")
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}
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return nil, err
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}
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return &database.WalletUpdateResult{
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NewBalance: updatedWallet.Balance,
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NewVersion: updatedWallet.Version,
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Success: true,
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}, nil
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}
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// FindAllWallets finds all wallets with pagination.
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func (w *WalletMgo) FindAllWallets(ctx context.Context, pagination pagination.Pagination) (total int64, wallets []*model.Wallet, err error) {
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return mongoutil.FindPage[*model.Wallet](ctx, w.coll, bson.M{}, pagination, &options.FindOptions{
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Sort: bson.D{{Key: "create_time", Value: -1}},
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})
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}
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// FindWalletsByUserIDs finds wallets by user IDs.
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func (w *WalletMgo) FindWalletsByUserIDs(ctx context.Context, userIDs []string) ([]*model.Wallet, error) {
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if len(userIDs) == 0 {
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return []*model.Wallet{}, nil
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}
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filter := bson.M{"user_id": bson.M{"$in": userIDs}}
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return mongoutil.Find[*model.Wallet](ctx, w.coll, filter)
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}
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// WalletBalanceRecordMgo implements WalletBalanceRecord using MongoDB as the storage backend.
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type WalletBalanceRecordMgo struct {
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coll *mongo.Collection
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}
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// NewWalletBalanceRecordMongo creates a new instance of WalletBalanceRecordMgo with the provided MongoDB database.
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func NewWalletBalanceRecordMongo(db *mongo.Database) (database.WalletBalanceRecord, error) {
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coll := db.Collection(database.WalletBalanceRecordName)
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// 先尝试删除可能存在的旧 record_id 索引（如果不是稀疏索引）
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// 忽略删除失败的错误（索引可能不存在）
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_, _ = coll.Indexes().DropOne(context.Background(), "record_id_1")
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// 创建索引，使用稀疏索引允许 record_id 为 null
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_, err := coll.Indexes().CreateMany(context.Background(), []mongo.IndexModel{
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{
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Keys: bson.D{{Key: "user_id", Value: 1}, {Key: "create_time", Value: -1}},
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},
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{
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Keys: bson.D{{Key: "record_id", Value: 1}},
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Options: options.Index().SetUnique(true).SetSparse(true),
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},
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{
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Keys: bson.D{{Key: "create_time", Value: -1}},
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},
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})
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if err != nil {
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return nil, err
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}
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return &WalletBalanceRecordMgo{coll: coll}, nil
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}
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// Create creates a new wallet balance record.
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func (w *WalletBalanceRecordMgo) Create(ctx context.Context, record *model.WalletBalanceRecord) error {
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if record.CreateTime.IsZero() {
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record.CreateTime = time.Now()
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}
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return mongoutil.InsertOne(ctx, w.coll, record)
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}
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// FindByUserID finds all balance records for a user with pagination.
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func (w *WalletBalanceRecordMgo) FindByUserID(ctx context.Context, userID string, pagination pagination.Pagination) (total int64, records []*model.WalletBalanceRecord, err error) {
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filter := bson.M{"user_id": userID}
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return mongoutil.FindPage[*model.WalletBalanceRecord](ctx, w.coll, filter, pagination, &options.FindOptions{
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Sort: bson.D{{Key: "create_time", Value: -1}},
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})
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}
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