# 后端接口 TODO 清单 - 礼物打赏模块

## 1. 获取礼物列表
**文件**: `RoomDetailActivity.java`
**接口路径**: `GET /api/gifts`
**返回数据**:
```json
{
  "code": 200,
  "data": [
    {
      "id": "string",
      "name": "string",
      "price": "number",
      "iconUrl": "string",
      "description": "string",
      "level": "number"
    }
  ]
}
```

## 2. 获取用户金币余额
**文件**: `RoomDetailActivity.java`
**接口路径**: `GET /api/user/balance`
**请求参数**: userId（从token中获取）
**返回数据**:
```json
{
  "code": 200,
  "data": {
    "coinBalance": "number"
  }
}
```

## 3. 赠送礼物
**文件**: `RoomDetailActivity.java`
**接口路径**: `POST /api/gifts/send`
**请求参数**:
```json
{
  "roomId": "string",
  "streamerId": "string",
  "giftId": "string",
  "count": "number"
}
```
**返回数据**:
```json
{
  "code": 200,
  "data": {
    "success": true,
    "newBalance": "number",
    "message": "string"
  }
}
```

## 4. 获取充值选项列表
**文件**: `RoomDetailActivity.java`
**接口路径**: `GET /api/recharge/options`
**返回数据**:
```json
{
  "code": 200,
  "data": [
    {
      "id": "string",
      "coinAmount": "number",
      "price": "number",
      "discountLabel": "string"
    }
  ]
}
```

## 5. 发起充值请求
**文件**: `RoomDetailActivity.java`
**接口路径**: `POST /api/recharge/create`
**请求参数**:
```json
{
  "optionId": "string",
  "coinAmount": "number",
  "price": "number"
}
```
**返回数据**:
```json
{
  "code": 200,
  "data": {
    "orderId": "string",
    "paymentUrl": "string"
  }
}
```
**后续步骤**: 
1. 集成支付SDK（微信支付、支付宝等）
2. 调用支付SDK发起支付
3. 监听支付结果回调
4. 支付成功后更新用户金币余额