80 lines
2.6 KiB
Go
80 lines
2.6 KiB
Go
|
package handler
|
|||
|
|
|
|||
|
|
import (
|
|||
|
|
"encoding/json"
|
|||
|
|
"time"
|
|||
|
|
|
|||
|
|
"soul-api/internal/model"
|
|||
|
|
|
|||
|
|
"gorm.io/gorm"
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
// computeOrderCommission 按订单计算应付给推广者的佣金
|
|||
|
|
// 会员订单：推广者会员 20%、非会员 10%；内容订单：90%（好友优惠 5% 仅针对内容）
|
|||
|
|
// order: 已支付订单，需有 product_type、amount、referrer_id
|
|||
|
|
// referrerUser: 推广者用户信息，用于判断 is_vip（可为 nil，会查库）
|
|||
|
|
// preloadConfig: 可选，预加载的 referral_config，避免 N+1 查询
|
|||
|
|
func computeOrderCommission(db *gorm.DB, order *model.Order, referrerUser *model.User, preloadConfig ...*model.SystemConfig) float64 {
|
|||
|
|
if order == nil || order.ReferrerID == nil || *order.ReferrerID == "" {
|
|||
|
|
return 0
|
|||
|
|
}
|
|||
|
|
// 读取推广配置
|
|||
|
|
distributorShare := 0.9
|
|||
|
|
userDiscount := 0.0
|
|||
|
|
vipOrderShareVip := 20.0
|
|||
|
|
vipOrderShareNonVip := 10.0
|
|||
|
|
var cfg *model.SystemConfig
|
|||
|
|
if len(preloadConfig) > 0 && preloadConfig[0] != nil {
|
|||
|
|
cfg = preloadConfig[0]
|
|||
|
|
} else if row, err := (func() (*model.SystemConfig, error) {
|
|||
|
|
var r model.SystemConfig
|
|||
|
|
e := db.Where("config_key = ?", "referral_config").First(&r).Error
|
|||
|
|
return &r, e
|
|||
|
|
})(); err == nil {
|
|||
|
|
cfg = row
|
|||
|
|
}
|
|||
|
|
if cfg != nil {
|
|||
|
|
var config map[string]interface{}
|
|||
|
|
if err := json.Unmarshal(cfg.ConfigValue, &config); err == nil {
|
|||
|
|
if share, ok := config["distributorShare"].(float64); ok {
|
|||
|
|
distributorShare = share / 100
|
|||
|
|
}
|
|||
|
|
if disc, ok := config["userDiscount"].(float64); ok {
|
|||
|
|
userDiscount = disc / 100
|
|||
|
|
}
|
|||
|
|
if v, ok := config["vipOrderShareVip"].(float64); ok {
|
|||
|
|
vipOrderShareVip = v / 100
|
|||
|
|
}
|
|||
|
|
if v, ok := config["vipOrderShareNonVip"].(float64); ok {
|
|||
|
|
vipOrderShareNonVip = v / 100
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// 会员订单：无好友优惠，按推广者是否会员分 20%/10%
|
|||
|
|
if order.ProductType == "vip" {
|
|||
|
|
base := order.Amount
|
|||
|
|
var referrer model.User
|
|||
|
|
if referrerUser != nil {
|
|||
|
|
referrer = *referrerUser
|
|||
|
|
} else if err := db.Where("id = ?", *order.ReferrerID).First(&referrer).Error; err != nil {
|
|||
|
|
return 0
|
|||
|
|
}
|
|||
|
|
isVip := referrer.IsVip != nil && *referrer.IsVip
|
|||
|
|
if referrer.VipExpireDate != nil && referrer.VipExpireDate.Before(time.Now()) {
|
|||
|
|
isVip = false
|
|||
|
|
}
|
|||
|
|
if isVip {
|
|||
|
|
return base * vipOrderShareVip
|
|||
|
|
}
|
|||
|
|
return base * vipOrderShareNonVip
|
|||
|
|
}
|
|||
|
|
// 内容订单：若有推荐人且 userDiscount>0，反推原价；否则按实付
|
|||
|
|
commissionBase := order.Amount
|
|||
|
|
if userDiscount > 0 && (order.ReferrerID != nil && *order.ReferrerID != "" || (order.ReferralCode != nil && *order.ReferralCode != "")) {
|
|||
|
|
if (1 - userDiscount) > 0 {
|
|||
|
|
commissionBase = order.Amount / (1 - userDiscount)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return commissionBase * distributorShare
|
|||
|
|
}
|