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docs/commission-search-result.md
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# 差价佣金计算和分配逻辑搜索结果
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## 一、差价佣金的计算方式
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### 1.1 计算公式
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差价佣金 = 下级成本价 - 自己成本价
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### 1.2 计算流程
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**文件位置**: `internal/service/commission_calculation/service.go:121-225`
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```go
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func (s *Service) CalculateCostDiffCommission(ctx context.Context, order *model.Order) ([]*model.CommissionRecord, error)
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```
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**核心逻辑**:
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1. **销售端利润计算** (第138-153行)
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- 销售利润 = 订单总金额 - 销售成本价
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- 如果销售利润 > 0,为销售店铺创建一条佣金记录
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2. **链式向上计算** (第163-222行)
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- 从销售店铺开始,逐级向上遍历代理链
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- 对于每一级代理:
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- 获取该代理的成本价(从 ShopPackageAllocation 表)
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- 计算差价:childCostPrice - myCostPrice
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- 如果差价 > 0,创建佣金记录
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3. **链路断裂处理** (第173-200行)
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- 如果上级代理未分配该套餐,创建待审佣金记录(status=99)
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- 记录备注:套餐系列未分配给该代理,需人工核查
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### 1.3 示例
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```
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平台基础成本价: 100元
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↓
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分配给代理A,成本价: 120元
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├─ A的利润: 120 - 100 = 20元
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↓
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分配给代理A1,成本价: 130元
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├─ A1的利润: 130 - 120 = 10元
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├─ A的差价佣金: 130 - 120 = 10元
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↓
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A1销售给客户,售价: 200元
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├─ A1的销售利润: 200 - 130 = 70元
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├─ A的差价佣金: 130 - 120 = 10元
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├─ 平台收入: 120元
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```
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---
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## 二、差价佣金的发放条件
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### 2.1 触发条件
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**文件位置**: `internal/service/order/service.go:1621` 和 `internal/task/commission_calculation.go`
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差价佣金在以下情况触发:
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1. **订单支付成功**
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- 支付状态从 `PaymentStatusPending` (1) 变为 `PaymentStatusPaid` (2)
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- 触发点:`WalletPay()` 方法完成后调用 `enqueueCommissionCalculation()`
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2. **异步任务处理**
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- 任务类型: `commission:calculate`
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- 处理器: `CommissionCalculationHandler.HandleCommissionCalculation()`
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- 队列: Asynq 异步任务队列
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### 2.2 发放流程
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**文件位置**: `internal/service/commission_calculation/service.go:74-119`
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```go
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func (s *Service) CalculateCommission(ctx context.Context, orderID uint) error
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```
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**步骤**:
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1. **检查订单佣金状态** (第81-84行)
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- 如果 `commission_status == 2` (已计算),跳过
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- 防止重复计算
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2. **计算成本价差佣金** (第86-98行)
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- 调用 `CalculateCostDiffCommission()` 获取佣金记录列表
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- 逐条创建佣金记录到 `tb_commission_record` 表
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- 调用 `creditCommissionInTx()` 入账到代理钱包
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3. **触发一次性佣金** (第100-111行)
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- 仅非代购订单触发
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- 根据订单类型(单卡/设备)调用对应方法
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4. **更新订单佣金状态** (第113-115行)
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- 将 `commission_status` 更新为 `2` (已计算)
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### 2.3 佣金入账
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**文件位置**: `internal/service/commission_calculation/service.go:641-687`
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```go
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func (s *Service) creditCommissionInTx(ctx context.Context, tx *gorm.DB, record *model.CommissionRecord) error
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```
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**入账步骤**:
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1. 获取店铺的分佣钱包 (wallet_type = 'commission')
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2. 增加钱包余额
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3. 更新佣金记录状态为 `CommissionStatusReleased` (3)
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4. 记录入账时间 `released_at`
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5. 创建钱包交易记录 (transaction_type = 'commission')
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---
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## 三、差价佣金与订单状态的关系
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### 3.1 订单状态定义
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**文件位置**: `internal/model/order.go:106-110`
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```go
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// 佣金状态常量
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const (
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CommissionStatusPending = 1 // 待计算
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CommissionStatusCalculated = 2 // 已计算
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)
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```
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### 3.2 订单支付状态
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**文件位置**: `internal/model/order.go:98-104`
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```go
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// 支付状态常量
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const (
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PaymentStatusPending = 1 // 待支付
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PaymentStatusPaid = 2 // 已支付
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PaymentStatusCancelled = 3 // 已取消
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PaymentStatusRefunded = 4 // 已退款
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)
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```
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### 3.3 状态转换关系
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```
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订单创建
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↓
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commission_status = 1 (待计算)
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payment_status = 1 (待支付)
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↓
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用户支付
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↓
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payment_status = 2 (已支付)
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↓
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触发佣金计算任务
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↓
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异步处理:CalculateCommission()
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↓
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commission_status = 2 (已计算)
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佣金入账到代理钱包
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```
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### 3.4 佣金记录状态
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**文件位置**: `internal/model/commission.go:40-46` 和 `pkg/constants/iot.go:180-187`
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```go
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// 佣金记录状态(tb_commission_record.status)
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const (
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CommissionStatusReleased = 3 // 已发放
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CommissionStatusInvalid = 4 // 已失效
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CommissionStatusPendingReview = 99 // 待人工修正(链路断裂)
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)
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// 代理钱包交易状态(tb_agent_wallet_transaction.status)
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const (
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CommissionStatusFrozen = 1 // 已冻结
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CommissionStatusUnfreezing = 2 // 解冻中
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CommissionStatusReleased = 3 // 已发放
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CommissionStatusInvalid = 4 // 已失效
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CommissionStatusPendingReview = 99 // 待人工修正
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)
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```
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### 3.5 关键字段
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**订单表 (tb_order)**:
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- `commission_status`: 佣金计算状态
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- `commission_config_version`: 佣金配置版本快照
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- `seller_shop_id`: 销售店铺ID(用于成本价差佣金)
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- `seller_cost_price`: 销售成本价(用于计算利润)
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- `series_id`: 系列ID(用于查询分配配置)
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**佣金记录表 (tb_commission_record)**:
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- `shop_id`: 佣金归属店铺
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- `order_id`: 关联订单
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- `commission_source`: 佣金来源 (cost_diff/one_time)
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- `amount`: 佣金金额
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- `status`: 佣金状态
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- `released_at`: 入账时间
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- `balance_after`: 入账后钱包余额
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---
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## 四、关键代码位置总结
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| 功能 | 文件位置 | 方法 |
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|------|---------|------|
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| 差价佣金计算 | `internal/service/commission_calculation/service.go` | `CalculateCostDiffCommission()` |
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| 佣金入账 | `internal/service/commission_calculation/service.go` | `creditCommissionInTx()` |
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| 佣金计算触发 | `internal/service/order/service.go` | `enqueueCommissionCalculation()` |
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| 异步任务处理 | `internal/task/commission_calculation.go` | `HandleCommissionCalculation()` |
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| 订单支付完成 | `internal/service/order/service.go` | `WalletPay()` |
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| 模型定义 | `internal/model/commission.go` | `CommissionRecord` |
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| 模型定义 | `internal/model/order.go` | `Order` |
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| 业务文档 | `docs/commission-package-model.md` | 完整的佣金业务模型说明 |
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---
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## 五、相关常量
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**文件位置**: `pkg/constants/constants.go` 和 `pkg/constants/iot.go`
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```go
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// 任务类型
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TaskTypeCommission = "commission:calculate"
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// 佣金来源
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CommissionSourceCostDiff = "cost_diff" // 成本价差
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CommissionSourceOneTime = "one_time" // 一次性佣金
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// 佣金状态
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CommissionStatusReleased = 3 // 已发放
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CommissionStatusInvalid = 4 // 已失效
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CommissionStatusPendingReview = 99 // 待人工修正
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```
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