192 lines
4.4 KiB
Markdown
192 lines
4.4 KiB
Markdown
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# 充值功能说明
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## 概述
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本系统支持三种充值方式：
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1. **支付宝充值** - 通过支付宝进行在线充值（待实现）
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2. **对公转账** - 通过银行转账进行充值
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3. **赠送充值** - 管理员为用户进行赠送充值
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## 功能架构
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### 实体层 (Entities)
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- `RechargeRecord` - 充值记录实体
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- `Wallet` - 钱包实体
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- `WalletTransaction` - 钱包交易记录实体
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### 领域服务层 (Domain Services)
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- `WalletAggregateService` - 钱包聚合服务，处理充值业务逻辑
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### 应用服务层 (Application Services)
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- `FinanceApplicationService` - 财务应用服务，协调充值操作
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### HTTP层 (HTTP Handlers)
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- `FinanceHandler` - 财务HTTP处理器，提供REST API接口
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## API接口
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### 1. 对公转账充值
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**接口地址：** `POST /api/v1/finance/wallet/transfer-recharge`
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**请求参数：**
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```json
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{
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"amount": "100.00",
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"transfer_order_id": "TR202412010001",
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"bank_account": "6222021234567890123",
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"bank_name": "中国工商银行",
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"notes": "转账备注"
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}
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```
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**响应示例：**
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```json
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{
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"code": 200,
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"message": "对公转账充值成功",
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"data": {
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"id": "uuid",
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"user_id": "user_uuid",
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"amount": "100.00",
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"recharge_type": "transfer",
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"status": "success",
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"transfer_order_id": "TR202412010001",
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"bank_account": "6222021234567890123",
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"bank_name": "中国工商银行",
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"notes": "转账备注",
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"created_at": "2024-12-01T10:00:00Z",
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"updated_at": "2024-12-01T10:00:00Z"
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}
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}
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```
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### 2. 赠送充值
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**接口地址：** `POST /api/v1/finance/wallet/gift-recharge`
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**请求参数：**
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```json
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{
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"amount": "50.00",
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"gift_reason": "新用户注册奖励",
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"notes": "系统自动赠送"
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}
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```
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**响应示例：**
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```json
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{
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"code": 200,
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"message": "赠送充值成功",
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"data": {
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"id": "uuid",
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"user_id": "user_uuid",
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"amount": "50.00",
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"recharge_type": "gift",
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"status": "success",
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"gift_reason": "新用户注册奖励",
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"operator_id": "system",
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"notes": "系统自动赠送",
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"created_at": "2024-12-01T10:00:00Z",
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"updated_at": "2024-12-01T10:00:00Z"
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}
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}
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```
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### 3. 通用充值（保留接口）
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**接口地址：** `POST /api/v1/finance/wallet/recharge`
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**请求参数：**
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```json
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{
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"amount": "200.00"
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}
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```
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## 业务规则
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### 对公转账充值
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1. 转账订单号必须唯一，不能重复使用
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2. 充值成功后立即更新钱包余额
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3. 充值记录状态标记为成功
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### 赠送充值
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1. 赠送充值直接标记为成功状态
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2. 立即更新钱包余额
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3. 记录操作员ID（当前为"system"）
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### 通用规则
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1. 充值金额必须大于0
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2. 用户必须存在钱包
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3. 使用乐观锁防止并发问题
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4. 所有操作都有详细的日志记录
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## 数据库表结构
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### recharge_records 表
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```sql
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CREATE TABLE recharge_records (
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id VARCHAR(36) PRIMARY KEY,
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user_id VARCHAR(36) NOT NULL,
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amount DECIMAL(20,8) NOT NULL,
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recharge_type VARCHAR(20) NOT NULL,
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status VARCHAR(20) NOT NULL DEFAULT 'pending',
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alipay_order_id VARCHAR(64),
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transfer_order_id VARCHAR(64),
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bank_account VARCHAR(100),
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bank_name VARCHAR(100),
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gift_reason VARCHAR(200),
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notes TEXT,
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operator_id VARCHAR(36),
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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deleted_at TIMESTAMP NULL,
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INDEX idx_user_id (user_id),
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INDEX idx_recharge_type (recharge_type),
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INDEX idx_status (status),
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INDEX idx_alipay_order_id (alipay_order_id),
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INDEX idx_transfer_order_id (transfer_order_id)
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);
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```
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## 错误处理
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### 常见错误码
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- `400` - 请求参数错误
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- `401` - 用户未登录
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- `409` - 转账订单号已存在
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- `500` - 服务器内部错误
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### 错误消息示例
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```json
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{
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"code": 409,
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"message": "转账订单号已存在",
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"data": null
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}
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```
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## 后续开发计划
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1. **支付宝充值功能**
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- 集成支付宝支付接口
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- 实现支付回调处理
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- 添加支付状态查询接口
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2. **充值记录查询**
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- 添加充值记录列表查询接口
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- 支持按用户、类型、状态等条件筛选
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3. **充值统计功能**
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- 添加充值金额统计
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- 支持按时间段统计充值情况
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## 注意事项
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1. 所有金额计算使用 `decimal.Decimal` 类型，确保精度
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2. 使用乐观锁机制防止并发充值问题
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3. 充值操作都有完整的日志记录
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4. 对公转账充值需要人工审核确认
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5. 赠送充值需要管理员权限
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