新功能(#79): 实现促销管理接口并支持数量配价

Co-authored-by: multica-agent <github@multica.ai>

apis/admin/promo.api

@@ -0,0 +1,121 @@
+syntax = "v1"
+
+info (
+	title:   "promo admin API"
+	desc:    "API for ppanel"
+	author:  "Tension"
+	email:   "tension@ppanel.com"
+	version: "0.0.1"
+)
+
+import "../types.api"
+
+type (
+	CreatePromoRuleRequest {
+		Name      string                 `json:"name" validate:"required,max=100"`
+		Type      string                 `json:"type" validate:"required,oneof=new_user inactive_user campaign"`
+		Params    map[string]interface{} `json:"params"`
+		Priority  int64                  `json:"priority" validate:"gte=0"`
+		Enabled   *bool                  `json:"enabled"`
+		StartTime *int64                 `json:"start_time"`
+		EndTime   *int64                 `json:"end_time"`
+	}
+	UpdatePromoRuleRequest {
+		Id        int64                  `uri:"id" validate:"required,gt=0"`
+		Name      string                 `json:"name" validate:"required,max=100"`
+		Type      string                 `json:"type" validate:"required,oneof=new_user inactive_user campaign"`
+		Params    map[string]interface{} `json:"params"`
+		Priority  int64                  `json:"priority" validate:"gte=0"`
+		Enabled   *bool                  `json:"enabled"`
+		StartTime *int64                 `json:"start_time"`
+		EndTime   *int64                 `json:"end_time"`
+	}
+	GetPromoRuleDetailRequest {
+		Id int64 `uri:"id" validate:"required,gt=0"`
+	}
+	DeletePromoRuleRequest {
+		Id int64 `uri:"id" validate:"required,gt=0"`
+	}
+	GetPromoRuleListRequest {
+		Page    int64  `form:"page" validate:"required"`
+		Size    int64  `form:"size" validate:"required"`
+		Type    string `form:"type" validate:"omitempty,oneof=new_user inactive_user campaign"`
+		Enabled *bool  `form:"enabled"`
+		Search  string `form:"search,omitempty"`
+	}
+	GetPromoRuleListResponse {
+		Total int64       `json:"total"`
+		List  []PromoRule `json:"list"`
+	}
+	SetPromoPriceRequest {
+		PromoRuleId int64            `json:"promo_rule_id" validate:"required,gt=0"`
+		Items       []PromoPriceItem `json:"items" validate:"required,dive"`
+	}
+	GetPromoPriceListRequest {
+		PromoRuleId int64 `form:"promo_rule_id" validate:"required,gt=0"`
+		Page        int64 `form:"page" validate:"required"`
+		Size        int64 `form:"size" validate:"required"`
+	}
+	GetPromoPriceListResponse {
+		Total int64        `json:"total"`
+		List  []PromoPrice `json:"list"`
+	}
+	DeletePromoPriceRequest {
+		Id int64 `uri:"id" validate:"required,gt=0"`
+	}
+	GetPromoUsageListRequest {
+		Page        int64  `form:"page" validate:"required"`
+		Size        int64  `form:"size" validate:"required"`
+		RuleId      int64  `form:"rule_id,omitempty"`
+		UserId      int64  `form:"user_id,omitempty"`
+		SubscribeId int64  `form:"subscribe_id,omitempty"`
+		OrderNo     string `form:"order_no,omitempty"`
+	}
+	GetPromoUsageListResponse {
+		Total int64        `json:"total"`
+		List  []PromoUsage `json:"list"`
+	}
+)
+
+@server (
+	prefix:     v1/admin/promo
+	group:      admin/promo
+	middleware: AuthMiddleware
+)
+service ppanel {
+	@doc "Create promo rule"
+	@handler CreateRule
+	post /rule (CreatePromoRuleRequest) returns (PromoRule)
+
+	@doc "Get promo rule list"
+	@handler GetRuleList
+	get /rule/list (GetPromoRuleListRequest) returns (GetPromoRuleListResponse)
+
+	@doc "Get promo rule detail"
+	@handler GetRuleDetail
+	get /rule/:id (GetPromoRuleDetailRequest) returns (PromoRule)
+
+	@doc "Update promo rule"
+	@handler UpdateRule
+	put /rule/:id (UpdatePromoRuleRequest) returns (PromoRule)
+
+	@doc "Delete promo rule"
+	@handler DeleteRule
+	delete /rule/:id (DeletePromoRuleRequest)
+
+	@doc "Set promo prices"
+	@handler SetPrice
+	post /price (SetPromoPriceRequest)
+
+	@doc "Get promo price list"
+	@handler GetPriceList
+	get /price/list (GetPromoPriceListRequest) returns (GetPromoPriceListResponse)
+
+	@doc "Delete promo price"
+	@handler DeletePrice
+	delete /price/:id (DeletePromoPriceRequest)
+
+	@doc "Get promo usage list"
+	@handler GetUsageList
+	get /usage/list (GetPromoUsageListRequest) returns (GetPromoUsageListResponse)
+}

apis/types.api

@@ -230,6 +230,41 @@ type (
 		Discount float64 `json:"discount"`
 		MapApple string  `json:"map_apple"`
 	}
+	PromoPrice {
+		Id          int64 `json:"id"`
+		SubscribeId int64 `json:"subscribe_id"`
+		PromoRuleId int64 `json:"promo_rule_id"`
+		Quantity    int64 `json:"quantity"`
+		PromoPrice  int64 `json:"promo_price"`
+		CreatedAt   int64 `json:"created_at"`
+		UpdatedAt   int64 `json:"updated_at"`
+	}
+	PromoPriceItem {
+		SubscribeId int64 `json:"subscribe_id" validate:"required,gt=0"`
+		Quantity    int64 `json:"quantity" validate:"required,gt=0,lte=1000"`
+		PromoPrice  int64 `json:"promo_price" validate:"required,gt=0"`
+	}
+	PromoRule {
+		Id        int64                  `json:"id"`
+		Name      string                 `json:"name"`
+		Type      string                 `json:"type"`
+		Params    map[string]interface{} `json:"params"`
+		Priority  int64                  `json:"priority"`
+		Enabled   bool                   `json:"enabled"`
+		StartTime *int64                 `json:"start_time"`
+		EndTime   *int64                 `json:"end_time"`
+		CreatedAt int64                  `json:"created_at"`
+		UpdatedAt int64                  `json:"updated_at"`
+	}
+	PromoUsage {
+		Id          int64  `json:"id"`
+		UserId      int64  `json:"user_id"`
+		PromoRuleId int64  `json:"promo_rule_id"`
+		SubscribeId int64  `json:"subscribe_id"`
+		OrderNo     string `json:"order_no"`
+		PromoPrice  int64  `json:"promo_price"`
+		CreatedAt   int64  `json:"created_at"`
+	}
 	TrafficLimit {
 		StatType     string `json:"stat_type"`
 		StatValue    int64  `json:"stat_value"`

initialize/migrate/database/02154_promo_admin_api.down.sql

@@ -0,0 +1,3 @@
+DROP TABLE IF EXISTS `promo_usage`;
+DROP TABLE IF EXISTS `subscribe_promo`;
+DROP TABLE IF EXISTS `promo_rule`;

initialize/migrate/database/02154_promo_admin_api.up.sql

@@ -0,0 +1,42 @@
+CREATE TABLE IF NOT EXISTS `promo_rule` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `name` VARCHAR(100) NOT NULL DEFAULT '' COMMENT '规则名称',
+  `type` VARCHAR(32) NOT NULL DEFAULT '' COMMENT '规则类型：new_user / inactive_user / campaign',
+  `params` JSON NOT NULL COMMENT '类型专属参数',
+  `priority` INT NOT NULL DEFAULT 0 COMMENT '优先级，数值越大越优先匹配',
+  `enabled` TINYINT(1) NOT NULL DEFAULT 1 COMMENT '是否启用',
+  `start_time` DATETIME DEFAULT NULL COMMENT '生效开始时间',
+  `end_time` DATETIME DEFAULT NULL COMMENT '生效结束时间',
+  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  `deleted_at` DATETIME DEFAULT NULL COMMENT '软删除时间',
+  PRIMARY KEY (`id`),
+  KEY `idx_enabled_priority` (`enabled`, `priority` DESC),
+  KEY `idx_deleted_at` (`deleted_at`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='促销规则表';
+
+CREATE TABLE IF NOT EXISTS `subscribe_promo` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `subscribe_id` BIGINT UNSIGNED NOT NULL COMMENT '套餐规格 ID',
+  `quantity` INT NOT NULL DEFAULT 0 COMMENT '购买数量',
+  `promo_rule_id` BIGINT UNSIGNED NOT NULL COMMENT '促销规则 ID',
+  `promo_price` BIGINT NOT NULL DEFAULT 0 COMMENT '优惠价（分）',
+  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `idx_subscribe_qty_rule` (`subscribe_id`, `quantity`, `promo_rule_id`),
+  KEY `idx_promo_rule_id` (`promo_rule_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='规格促销价表';
+
+CREATE TABLE IF NOT EXISTS `promo_usage` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `user_id` BIGINT UNSIGNED NOT NULL COMMENT '用户 ID',
+  `promo_rule_id` BIGINT UNSIGNED NOT NULL COMMENT '促销规则 ID',
+  `subscribe_id` BIGINT UNSIGNED NOT NULL COMMENT '套餐规格 ID',
+  `order_no` VARCHAR(255) NOT NULL DEFAULT '' COMMENT '关联订单号',
+  `promo_price` BIGINT NOT NULL DEFAULT 0 COMMENT '使用时的促销单价（分）',
+  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  KEY `idx_user_rule` (`user_id`, `promo_rule_id`),
+  KEY `idx_order_no` (`order_no`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='促销使用记录表';

internal/handler/admin/promo/createRuleHandler.go

@@ -0,0 +1,23 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func CreateRuleHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.CreatePromoRuleRequest
+		_ = c.ShouldBind(&req)
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewCreateRuleLogic(c.Request.Context(), svcCtx)
+		resp, err := l.CreateRule(&req)
+		result.HttpResult(c, resp, err)
+	}
+}

internal/handler/admin/promo/deletePriceHandler.go

@@ -0,0 +1,26 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func DeletePriceHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.DeletePromoPriceRequest
+		if err := c.ShouldBindUri(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewDeletePriceLogic(c.Request.Context(), svcCtx)
+		err := l.DeletePrice(&req)
+		result.HttpResult(c, nil, err)
+	}
+}

internal/handler/admin/promo/deleteRuleHandler.go

@@ -0,0 +1,26 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func DeleteRuleHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.DeletePromoRuleRequest
+		if err := c.ShouldBindUri(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewDeleteRuleLogic(c.Request.Context(), svcCtx)
+		err := l.DeleteRule(&req)
+		result.HttpResult(c, nil, err)
+	}
+}

internal/handler/admin/promo/getPriceListHandler.go

@@ -0,0 +1,23 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func GetPriceListHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.GetPromoPriceListRequest
+		_ = c.ShouldBind(&req)
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewGetPriceListLogic(c.Request.Context(), svcCtx)
+		resp, err := l.GetPriceList(&req)
+		result.HttpResult(c, resp, err)
+	}
+}

internal/handler/admin/promo/getRuleDetailHandler.go

@@ -0,0 +1,26 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func GetRuleDetailHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.GetPromoRuleDetailRequest
+		if err := c.ShouldBindUri(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewGetRuleDetailLogic(c.Request.Context(), svcCtx)
+		resp, err := l.GetRuleDetail(&req)
+		result.HttpResult(c, resp, err)
+	}
+}

internal/handler/admin/promo/getRuleListHandler.go

@@ -0,0 +1,23 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func GetRuleListHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.GetPromoRuleListRequest
+		_ = c.ShouldBind(&req)
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewGetRuleListLogic(c.Request.Context(), svcCtx)
+		resp, err := l.GetRuleList(&req)
+		result.HttpResult(c, resp, err)
+	}
+}

internal/handler/admin/promo/getUsageListHandler.go

@@ -0,0 +1,23 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func GetUsageListHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.GetPromoUsageListRequest
+		_ = c.ShouldBind(&req)
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewGetUsageListLogic(c.Request.Context(), svcCtx)
+		resp, err := l.GetUsageList(&req)
+		result.HttpResult(c, resp, err)
+	}
+}

internal/handler/admin/promo/setPriceHandler.go

@@ -0,0 +1,23 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func SetPriceHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.SetPromoPriceRequest
+		_ = c.ShouldBind(&req)
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewSetPriceLogic(c.Request.Context(), svcCtx)
+		err := l.SetPrice(&req)
+		result.HttpResult(c, nil, err)
+	}
+}

internal/handler/admin/promo/updateRuleHandler.go

@@ -0,0 +1,27 @@
+package promo
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/perfect-panel/server/internal/logic/admin/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/result"
+)
+
+func UpdateRuleHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var req types.UpdatePromoRuleRequest
+		if err := c.ShouldBindUri(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		_ = c.ShouldBind(&req)
+		if err := svcCtx.Validate(&req); err != nil {
+			result.ParamErrorResult(c, err)
+			return
+		}
+		l := promo.NewUpdateRuleLogic(c.Request.Context(), svcCtx)
+		resp, err := l.UpdateRule(&req)
+		result.HttpResult(c, resp, err)
+	}
+}

internal/handler/routes.go

@@ -17,6 +17,7 @@ import (
 	adminMarketing "github.com/perfect-panel/server/internal/handler/admin/marketing"
 	adminOrder "github.com/perfect-panel/server/internal/handler/admin/order"
 	adminPayment "github.com/perfect-panel/server/internal/handler/admin/payment"
+	adminPromo "github.com/perfect-panel/server/internal/handler/admin/promo"
 	adminRedemption "github.com/perfect-panel/server/internal/handler/admin/redemption"
 	adminServer "github.com/perfect-panel/server/internal/handler/admin/server"
 	adminSubscribe "github.com/perfect-panel/server/internal/handler/admin/subscribe"
@@ -374,6 +375,38 @@ func RegisterHandlers(router *gin.Engine, serverCtx *svc.ServiceContext) {
 		adminPaymentGroupRouter.GET("/platform", adminPayment.GetPaymentPlatformHandler(serverCtx))
 	}
 
+	adminPromoGroupRouter := router.Group("/v1/admin/promo")
+	adminPromoGroupRouter.Use(middleware.AuthMiddleware(serverCtx))
+
+	{
+		// Create promo rule
+		adminPromoGroupRouter.POST("/rule", adminPromo.CreateRuleHandler(serverCtx))
+
+		// Get promo rule list
+		adminPromoGroupRouter.GET("/rule/list", adminPromo.GetRuleListHandler(serverCtx))
+
+		// Get promo rule detail
+		adminPromoGroupRouter.GET("/rule/:id", adminPromo.GetRuleDetailHandler(serverCtx))
+
+		// Update promo rule
+		adminPromoGroupRouter.PUT("/rule/:id", adminPromo.UpdateRuleHandler(serverCtx))
+
+		// Delete promo rule
+		adminPromoGroupRouter.DELETE("/rule/:id", adminPromo.DeleteRuleHandler(serverCtx))
+
+		// Set promo prices
+		adminPromoGroupRouter.POST("/price", adminPromo.SetPriceHandler(serverCtx))
+
+		// Get promo price list
+		adminPromoGroupRouter.GET("/price/list", adminPromo.GetPriceListHandler(serverCtx))
+
+		// Delete promo price
+		adminPromoGroupRouter.DELETE("/price/:id", adminPromo.DeletePriceHandler(serverCtx))
+
+		// Get promo usage list
+		adminPromoGroupRouter.GET("/usage/list", adminPromo.GetUsageListHandler(serverCtx))
+	}
+
 	adminRedemptionGroupRouter := router.Group("/v1/admin/redemption")
 	adminRedemptionGroupRouter.Use(middleware.AuthMiddleware(serverCtx))
 

internal/logic/admin/promo/createRuleLogic.go

@@ -0,0 +1,58 @@
+package promo
+
+import (
+	"context"
+
+	promomodel "github.com/perfect-panel/server/internal/model/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type CreateRuleLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewCreateRuleLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateRuleLogic {
+	return &CreateRuleLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *CreateRuleLogic) CreateRule(req *types.CreatePromoRuleRequest) (*types.PromoRule, error) {
+	if err := validateRuleInput(req.Type, req.Params, req.Priority, req.StartTime, req.EndTime); err != nil {
+		return nil, err
+	}
+	params, err := paramsToString(req.Params)
+	if err != nil {
+		return nil, err
+	}
+	enabled := true
+	if req.Enabled != nil {
+		enabled = *req.Enabled
+	}
+	rule := &promomodel.Rule{
+		Name:      req.Name,
+		Type:      req.Type,
+		Params:    params,
+		Priority:  req.Priority,
+		Enabled:   &enabled,
+		StartTime: unixPtrToTimePtr(req.StartTime),
+		EndTime:   unixPtrToTimePtr(req.EndTime),
+	}
+	if err := l.svcCtx.PromoModel.InsertRule(l.ctx, rule); err != nil {
+		l.Errorw("[CreatePromoRule] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "create promo rule error: %v", err.Error())
+	}
+	if err := l.svcCtx.Redis.Del(l.ctx, ruleCacheKey).Err(); err != nil {
+		l.Errorw("[CreatePromoRule] Delete Cache Error", logger.Field("error", err.Error()))
+	}
+	resp := convertRule(rule)
+	return &resp, nil
+}

internal/logic/admin/promo/deletePriceLogic.go

@@ -0,0 +1,41 @@
+package promo
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type DeletePriceLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewDeletePriceLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeletePriceLogic {
+	return &DeletePriceLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *DeletePriceLogic) DeletePrice(req *types.DeletePromoPriceRequest) error {
+	price, err := l.svcCtx.PromoModel.FindPrice(l.ctx, req.Id)
+	if err != nil {
+		l.Errorw("[DeletePromoPrice] Find Price Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find promo price error: %v", err.Error())
+	}
+	if err := l.svcCtx.PromoModel.DeletePrice(l.ctx, req.Id); err != nil {
+		l.Errorw("[DeletePromoPrice] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "delete promo price error: %v", err.Error())
+	}
+	if err := l.svcCtx.Redis.Del(l.ctx, subscribePromoCacheKey(price.SubscribeId)).Err(); err != nil {
+		l.Errorw("[DeletePromoPrice] Delete Cache Error", logger.Field("error", err.Error()))
+	}
+	return nil
+}

internal/logic/admin/promo/deleteRuleLogic.go

@@ -0,0 +1,36 @@
+package promo
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type DeleteRuleLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewDeleteRuleLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteRuleLogic {
+	return &DeleteRuleLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *DeleteRuleLogic) DeleteRule(req *types.DeletePromoRuleRequest) error {
+	if err := l.svcCtx.PromoModel.DeleteRule(l.ctx, req.Id); err != nil {
+		l.Errorw("[DeletePromoRule] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "delete promo rule error: %v", err.Error())
+	}
+	if err := l.svcCtx.Redis.Del(l.ctx, ruleCacheKey).Err(); err != nil {
+		l.Errorw("[DeletePromoRule] Delete Cache Error", logger.Field("error", err.Error()))
+	}
+	return nil
+}

internal/logic/admin/promo/getPriceListLogic.go

@@ -0,0 +1,41 @@
+package promo
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type GetPriceListLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetPriceListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetPriceListLogic {
+	return &GetPriceListLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetPriceListLogic) GetPriceList(req *types.GetPromoPriceListRequest) (*types.GetPromoPriceListResponse, error) {
+	total, list, err := l.svcCtx.PromoModel.QueryPriceList(l.ctx, req.PromoRuleId, int(req.Page), int(req.Size))
+	if err != nil {
+		l.Errorw("[GetPromoPriceList] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "get promo price list error: %v", err.Error())
+	}
+	resp := &types.GetPromoPriceListResponse{
+		Total: total,
+		List:  make([]types.PromoPrice, 0, len(list)),
+	}
+	for _, item := range list {
+		resp.List = append(resp.List, convertPrice(item))
+	}
+	return resp, nil
+}

internal/logic/admin/promo/getRuleDetailLogic.go

@@ -0,0 +1,35 @@
+package promo
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type GetRuleDetailLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetRuleDetailLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetRuleDetailLogic {
+	return &GetRuleDetailLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetRuleDetailLogic) GetRuleDetail(req *types.GetPromoRuleDetailRequest) (*types.PromoRule, error) {
+	rule, err := l.svcCtx.PromoModel.FindRule(l.ctx, req.Id)
+	if err != nil {
+		l.Errorw("[GetPromoRuleDetail] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "get promo rule detail error: %v", err.Error())
+	}
+	resp := convertRule(rule)
+	return &resp, nil
+}

internal/logic/admin/promo/getRuleListLogic.go

@@ -0,0 +1,41 @@
+package promo
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type GetRuleListLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetRuleListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetRuleListLogic {
+	return &GetRuleListLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetRuleListLogic) GetRuleList(req *types.GetPromoRuleListRequest) (*types.GetPromoRuleListResponse, error) {
+	total, list, err := l.svcCtx.PromoModel.QueryRuleList(l.ctx, int(req.Page), int(req.Size), req.Type, req.Enabled, req.Search)
+	if err != nil {
+		l.Errorw("[GetPromoRuleList] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "get promo rule list error: %v", err.Error())
+	}
+	resp := &types.GetPromoRuleListResponse{
+		Total: total,
+		List:  make([]types.PromoRule, 0, len(list)),
+	}
+	for _, item := range list {
+		resp.List = append(resp.List, convertRule(item))
+	}
+	return resp, nil
+}

internal/logic/admin/promo/getUsageListLogic.go

@@ -0,0 +1,49 @@
+package promo
+
+import (
+	"context"
+
+	promomodel "github.com/perfect-panel/server/internal/model/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type GetUsageListLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetUsageListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetUsageListLogic {
+	return &GetUsageListLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetUsageListLogic) GetUsageList(req *types.GetPromoUsageListRequest) (*types.GetPromoUsageListResponse, error) {
+	total, list, err := l.svcCtx.PromoModel.QueryUsageList(l.ctx, promomodel.UsageFilter{
+		Page:        int(req.Page),
+		Size:        int(req.Size),
+		RuleId:      req.RuleId,
+		UserId:      req.UserId,
+		SubscribeId: req.SubscribeId,
+		OrderNo:     req.OrderNo,
+	})
+	if err != nil {
+		l.Errorw("[GetPromoUsageList] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "get promo usage list error: %v", err.Error())
+	}
+	resp := &types.GetPromoUsageListResponse{
+		Total: total,
+		List:  make([]types.PromoUsage, 0, len(list)),
+	}
+	for _, item := range list {
+		resp.List = append(resp.List, convertUsage(item))
+	}
+	return resp, nil
+}

internal/logic/admin/promo/setPriceLogic.go

@@ -0,0 +1,67 @@
+package promo
+
+import (
+	"context"
+
+	promomodel "github.com/perfect-panel/server/internal/model/promo"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+	"gorm.io/gorm"
+)
+
+type SetPriceLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewSetPriceLogic(ctx context.Context, svcCtx *svc.ServiceContext) *SetPriceLogic {
+	return &SetPriceLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *SetPriceLogic) SetPrice(req *types.SetPromoPriceRequest) error {
+	if _, err := l.svcCtx.PromoModel.FindRule(l.ctx, req.PromoRuleId); err != nil {
+		l.Errorw("[SetPromoPrice] Find Rule Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find promo rule error: %v", err.Error())
+	}
+	items := make([]*promomodel.SubscribePromo, 0, len(req.Items))
+	cacheKeys := make([]string, 0, len(req.Items))
+	for _, item := range req.Items {
+		sub, err := l.svcCtx.SubscribeModel.FindOne(l.ctx, item.SubscribeId)
+		if err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "subscribe plan not found")
+			}
+			l.Errorw("[SetPromoPrice] Find Subscribe Error", logger.Field("error", err.Error()))
+			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find subscribe error: %v", err.Error())
+		}
+		originPrice := sub.UnitPrice * item.Quantity
+		if item.PromoPrice >= originPrice {
+			return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "promo_price must be less than unit_price * quantity")
+		}
+		items = append(items, &promomodel.SubscribePromo{
+			SubscribeId: item.SubscribeId,
+			PromoRuleId: req.PromoRuleId,
+			Quantity:    item.Quantity,
+			PromoPrice:  item.PromoPrice,
+		})
+		cacheKeys = append(cacheKeys, subscribePromoCacheKey(item.SubscribeId))
+	}
+	if err := l.svcCtx.PromoModel.UpsertPrices(l.ctx, req.PromoRuleId, items); err != nil {
+		l.Errorw("[SetPromoPrice] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "set promo price error: %v", err.Error())
+	}
+	if len(cacheKeys) > 0 {
+		if err := l.svcCtx.Redis.Del(l.ctx, cacheKeys...).Err(); err != nil {
+			l.Errorw("[SetPromoPrice] Delete Cache Error", logger.Field("error", err.Error()))
+		}
+	}
+	return nil
+}

internal/logic/admin/promo/tool.go

@@ -0,0 +1,166 @@
+package promo
+
+import (
+	"encoding/json"
+	"fmt"
+	"math"
+	"time"
+
+	promomodel "github.com/perfect-panel/server/internal/model/promo"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+const (
+	ruleCacheKey       = "promo:rules:enabled"
+	subscribeCachePref = "promo:subscribe:"
+)
+
+func validateRuleInput(ruleType string, params map[string]interface{}, priority int64, startTime, endTime *int64) error {
+	if priority < 0 {
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "priority must be greater than or equal to 0")
+	}
+	if startTime != nil && endTime != nil && *startTime >= *endTime {
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "start_time must be less than end_time")
+	}
+	switch ruleType {
+	case "new_user":
+		windowHours, ok := numberParam(params, "window_hours")
+		if !ok || windowHours <= 0 {
+			return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "params.window_hours must be greater than 0")
+		}
+	case "inactive_user":
+		inactiveMonths, ok := numberParam(params, "inactive_months")
+		if !ok || inactiveMonths <= 0 {
+			return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "params.inactive_months must be greater than 0")
+		}
+	case "campaign":
+		if params == nil {
+			return nil
+		}
+	default:
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "unsupported promo rule type")
+	}
+	return nil
+}
+
+func numberParam(params map[string]interface{}, key string) (int64, bool) {
+	if params == nil {
+		return 0, false
+	}
+	value, ok := params[key]
+	if !ok {
+		return 0, false
+	}
+	switch v := value.(type) {
+	case float64:
+		if math.Trunc(v) != v {
+			return 0, false
+		}
+		return int64(v), true
+	case int64:
+		return v, true
+	case int:
+		return int64(v), true
+	case json.Number:
+		n, err := v.Int64()
+		return n, err == nil
+	default:
+		return 0, false
+	}
+}
+
+func paramsToString(params map[string]interface{}) (string, error) {
+	if params == nil {
+		params = map[string]interface{}{}
+	}
+	b, err := json.Marshal(params)
+	if err != nil {
+		return "", errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "invalid params")
+	}
+	return string(b), nil
+}
+
+func parseParams(data string) map[string]interface{} {
+	if data == "" {
+		return map[string]interface{}{}
+	}
+	var params map[string]interface{}
+	if err := json.Unmarshal([]byte(data), &params); err != nil {
+		return map[string]interface{}{}
+	}
+	return params
+}
+
+func unixPtrToTimePtr(ts *int64) *time.Time {
+	if ts == nil || *ts == 0 {
+		return nil
+	}
+	t := time.Unix(*ts, 0)
+	return &t
+}
+
+func timePtrToUnixPtr(t *time.Time) *int64 {
+	if t == nil {
+		return nil
+	}
+	ts := t.Unix()
+	return &ts
+}
+
+func convertRule(item *promomodel.Rule) types.PromoRule {
+	if item == nil {
+		return types.PromoRule{}
+	}
+	enabled := false
+	if item.Enabled != nil {
+		enabled = *item.Enabled
+	}
+	return types.PromoRule{
+		Id:        item.Id,
+		Name:      item.Name,
+		Type:      item.Type,
+		Params:    parseParams(item.Params),
+		Priority:  item.Priority,
+		Enabled:   enabled,
+		StartTime: timePtrToUnixPtr(item.StartTime),
+		EndTime:   timePtrToUnixPtr(item.EndTime),
+		CreatedAt: item.CreatedAt.Unix(),
+		UpdatedAt: item.UpdatedAt.Unix(),
+	}
+}
+
+func convertPrice(item *promomodel.SubscribePromo) types.PromoPrice {
+	if item == nil {
+		return types.PromoPrice{}
+	}
+	return types.PromoPrice{
+		Id:          item.Id,
+		SubscribeId: item.SubscribeId,
+		PromoRuleId: item.PromoRuleId,
+		Quantity:    item.Quantity,
+		PromoPrice:  item.PromoPrice,
+		CreatedAt:   item.CreatedAt.Unix(),
+		UpdatedAt:   item.UpdatedAt.Unix(),
+	}
+}
+
+func convertUsage(item *promomodel.Usage) types.PromoUsage {
+	if item == nil {
+		return types.PromoUsage{}
+	}
+	return types.PromoUsage{
+		Id:          item.Id,
+		UserId:      item.UserId,
+		PromoRuleId: item.PromoRuleId,
+		SubscribeId: item.SubscribeId,
+		OrderNo:     item.OrderNo,
+		PromoPrice:  item.PromoPrice,
+		CreatedAt:   item.CreatedAt.Unix(),
+	}
+}
+
+func subscribePromoCacheKey(subscribeId int64) string {
+	return fmt.Sprintf("%s%d", subscribeCachePref, subscribeId)
+}

internal/logic/admin/promo/updateRuleLogic.go

@@ -0,0 +1,63 @@
+package promo
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type UpdateRuleLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewUpdateRuleLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UpdateRuleLogic {
+	return &UpdateRuleLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *UpdateRuleLogic) UpdateRule(req *types.UpdatePromoRuleRequest) (*types.PromoRule, error) {
+	if err := validateRuleInput(req.Type, req.Params, req.Priority, req.StartTime, req.EndTime); err != nil {
+		return nil, err
+	}
+	rule, err := l.svcCtx.PromoModel.FindRule(l.ctx, req.Id)
+	if err != nil {
+		l.Errorw("[UpdatePromoRule] Find Rule Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find promo rule error: %v", err.Error())
+	}
+	params, err := paramsToString(req.Params)
+	if err != nil {
+		return nil, err
+	}
+	enabled := true
+	if rule.Enabled != nil {
+		enabled = *rule.Enabled
+	}
+	if req.Enabled != nil {
+		enabled = *req.Enabled
+	}
+	rule.Name = req.Name
+	rule.Type = req.Type
+	rule.Params = params
+	rule.Priority = req.Priority
+	rule.Enabled = &enabled
+	rule.StartTime = unixPtrToTimePtr(req.StartTime)
+	rule.EndTime = unixPtrToTimePtr(req.EndTime)
+	if err := l.svcCtx.PromoModel.UpdateRule(l.ctx, rule); err != nil {
+		l.Errorw("[UpdatePromoRule] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "update promo rule error: %v", err.Error())
+	}
+	if err := l.svcCtx.Redis.Del(l.ctx, ruleCacheKey).Err(); err != nil {
+		l.Errorw("[UpdatePromoRule] Delete Cache Error", logger.Field("error", err.Error()))
+	}
+	resp := convertRule(rule)
+	return &resp, nil
+}

internal/model/promo/default.go

@@ -0,0 +1,239 @@
+package promo
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/perfect-panel/server/pkg/cache"
+	"github.com/redis/go-redis/v9"
+	"gorm.io/gorm"
+)
+
+const (
+	cachePromoRuleIdPrefix      = "cache:promo_rule:id:"
+	cacheSubscribePromoIdPrefix = "cache:subscribe_promo:id:"
+)
+
+type Model interface {
+	InsertRule(ctx context.Context, data *Rule) error
+	FindRule(ctx context.Context, id int64) (*Rule, error)
+	UpdateRule(ctx context.Context, data *Rule) error
+	DeleteRule(ctx context.Context, id int64) error
+	QueryRuleList(ctx context.Context, page, size int, ruleType string, enabled *bool, search string) (int64, []*Rule, error)
+	UpsertPrices(ctx context.Context, ruleId int64, items []*SubscribePromo) error
+	FindPrice(ctx context.Context, id int64) (*SubscribePromo, error)
+	DeletePrice(ctx context.Context, id int64) error
+	QueryPriceList(ctx context.Context, ruleId int64, page, size int) (int64, []*SubscribePromo, error)
+	QueryUsageList(ctx context.Context, params UsageFilter) (int64, []*Usage, error)
+	Transaction(ctx context.Context, fn func(db *gorm.DB) error) error
+}
+
+type UsageFilter struct {
+	Page        int
+	Size        int
+	RuleId      int64
+	UserId      int64
+	SubscribeId int64
+	OrderNo     string
+}
+
+type customPromoModel struct {
+	cache.CachedConn
+	table string
+}
+
+func NewModel(db *gorm.DB, c *redis.Client) Model {
+	return &customPromoModel{
+		CachedConn: cache.NewConn(db, c),
+		table:      "`promo_rule`",
+	}
+}
+
+func (m *customPromoModel) ruleCacheKey(id int64) string {
+	return fmt.Sprintf("%s%d", cachePromoRuleIdPrefix, id)
+}
+
+func (m *customPromoModel) priceCacheKey(id int64) string {
+	return fmt.Sprintf("%s%d", cacheSubscribePromoIdPrefix, id)
+}
+
+func (m *customPromoModel) InsertRule(ctx context.Context, data *Rule) error {
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		return conn.Create(data).Error
+	}, m.ruleCacheKey(data.Id))
+}
+
+func (m *customPromoModel) FindRule(ctx context.Context, id int64) (*Rule, error) {
+	var resp Rule
+	err := m.QueryCtx(ctx, &resp, m.ruleCacheKey(id), func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&Rule{}).Where("id = ?", id).First(v).Error
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (m *customPromoModel) UpdateRule(ctx context.Context, data *Rule) error {
+	old, err := m.FindRule(ctx, data.Id)
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return err
+	}
+	keys := []string{m.ruleCacheKey(data.Id)}
+	if old != nil {
+		keys = append(keys, m.ruleCacheKey(old.Id))
+	}
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		return conn.Save(data).Error
+	}, keys...)
+}
+
+func (m *customPromoModel) DeleteRule(ctx context.Context, id int64) error {
+	data, err := m.FindRule(ctx, id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil
+		}
+		return err
+	}
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		return conn.Delete(&Rule{}, id).Error
+	}, m.ruleCacheKey(data.Id))
+}
+
+func (m *customPromoModel) QueryRuleList(ctx context.Context, page, size int, ruleType string, enabled *bool, search string) (int64, []*Rule, error) {
+	if page <= 0 {
+		page = 1
+	}
+	if size <= 0 {
+		size = 10
+	}
+	var total int64
+	var list []*Rule
+	err := m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
+		db := conn.Model(&Rule{})
+		if ruleType != "" {
+			db = db.Where("type = ?", ruleType)
+		}
+		if enabled != nil {
+			db = db.Where("enabled = ?", *enabled)
+		}
+		if search != "" {
+			db = db.Where("name LIKE ?", "%"+search+"%")
+		}
+		if err := db.Count(&total).Error; err != nil {
+			return err
+		}
+		return db.Order("priority DESC").Order("id DESC").Limit(size).Offset((page - 1) * size).Find(v).Error
+	})
+	return total, list, err
+}
+
+func (m *customPromoModel) UpsertPrices(ctx context.Context, ruleId int64, items []*SubscribePromo) error {
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		for _, item := range items {
+			if item == nil {
+				continue
+			}
+			item.PromoRuleId = ruleId
+			var existing SubscribePromo
+			err := conn.Model(&SubscribePromo{}).
+				Where("subscribe_id = ? AND quantity = ? AND promo_rule_id = ?", item.SubscribeId, item.Quantity, ruleId).
+				First(&existing).Error
+			if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+				return err
+			}
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				if err := conn.Create(item).Error; err != nil {
+					return err
+				}
+				continue
+			}
+			existing.Quantity = item.Quantity
+			existing.PromoPrice = item.PromoPrice
+			if err := conn.Save(&existing).Error; err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func (m *customPromoModel) FindPrice(ctx context.Context, id int64) (*SubscribePromo, error) {
+	var resp SubscribePromo
+	err := m.QueryCtx(ctx, &resp, m.priceCacheKey(id), func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&SubscribePromo{}).Where("id = ?", id).First(v).Error
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (m *customPromoModel) DeletePrice(ctx context.Context, id int64) error {
+	data, err := m.FindPrice(ctx, id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil
+		}
+		return err
+	}
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		return conn.Delete(&SubscribePromo{}, id).Error
+	}, m.priceCacheKey(data.Id))
+}
+
+func (m *customPromoModel) QueryPriceList(ctx context.Context, ruleId int64, page, size int) (int64, []*SubscribePromo, error) {
+	if page <= 0 {
+		page = 1
+	}
+	if size <= 0 {
+		size = 10
+	}
+	var total int64
+	var list []*SubscribePromo
+	err := m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
+		db := conn.Model(&SubscribePromo{}).Where("promo_rule_id = ?", ruleId)
+		if err := db.Count(&total).Error; err != nil {
+			return err
+		}
+		return db.Order("id DESC").Limit(size).Offset((page - 1) * size).Find(v).Error
+	})
+	return total, list, err
+}
+
+func (m *customPromoModel) QueryUsageList(ctx context.Context, params UsageFilter) (int64, []*Usage, error) {
+	if params.Page <= 0 {
+		params.Page = 1
+	}
+	if params.Size <= 0 {
+		params.Size = 10
+	}
+	var total int64
+	var list []*Usage
+	err := m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
+		db := conn.Model(&Usage{})
+		if params.RuleId > 0 {
+			db = db.Where("promo_rule_id = ?", params.RuleId)
+		}
+		if params.UserId > 0 {
+			db = db.Where("user_id = ?", params.UserId)
+		}
+		if params.SubscribeId > 0 {
+			db = db.Where("subscribe_id = ?", params.SubscribeId)
+		}
+		if params.OrderNo != "" {
+			db = db.Where("order_no = ?", params.OrderNo)
+		}
+		if err := db.Count(&total).Error; err != nil {
+			return err
+		}
+		return db.Order("id DESC").Limit(params.Size).Offset((params.Page - 1) * params.Size).Find(v).Error
+	})
+	return total, list, err
+}
+
+func (m *customPromoModel) Transaction(ctx context.Context, fn func(db *gorm.DB) error) error {
+	return m.TransactCtx(ctx, fn)
+}

internal/model/promo/promo.go

@@ -0,0 +1,53 @@
+package promo
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+type Rule struct {
+	Id        int64          `gorm:"primaryKey"`
+	Name      string         `gorm:"type:varchar(100);not null;default:'';comment:Promo Rule Name"`
+	Type      string         `gorm:"type:varchar(32);not null;default:'';comment:Promo Rule Type"`
+	Params    string         `gorm:"type:json;not null;comment:Rule Params"`
+	Priority  int64          `gorm:"type:int;not null;default:0;comment:Priority"`
+	Enabled   *bool          `gorm:"type:tinyint(1);not null;default:1;comment:Enabled"`
+	StartTime *time.Time     `gorm:"default:null;comment:Start Time"`
+	EndTime   *time.Time     `gorm:"default:null;comment:End Time"`
+	CreatedAt time.Time      `gorm:"<-:create;comment:Create Time"`
+	UpdatedAt time.Time      `gorm:"comment:Update Time"`
+	DeletedAt gorm.DeletedAt `gorm:"index;comment:Delete Time"`
+}
+
+func (*Rule) TableName() string {
+	return "promo_rule"
+}
+
+type SubscribePromo struct {
+	Id          int64     `gorm:"primaryKey"`
+	SubscribeId int64     `gorm:"not null;index:idx_subscribe_qty_rule,unique;comment:Subscribe ID"`
+	Quantity    int64     `gorm:"not null;default:0;index:idx_subscribe_qty_rule,unique;comment:Quantity"`
+	PromoRuleId int64     `gorm:"not null;index:idx_subscribe_qty_rule,unique;index:idx_promo_rule_id;comment:Promo Rule ID"`
+	PromoPrice  int64     `gorm:"type:bigint;not null;default:0;comment:Promo Price"`
+	CreatedAt   time.Time `gorm:"<-:create;comment:Create Time"`
+	UpdatedAt   time.Time `gorm:"comment:Update Time"`
+}
+
+func (*SubscribePromo) TableName() string {
+	return "subscribe_promo"
+}
+
+type Usage struct {
+	Id          int64     `gorm:"primaryKey"`
+	UserId      int64     `gorm:"not null;index:idx_user_rule;comment:User ID"`
+	PromoRuleId int64     `gorm:"not null;index:idx_user_rule;comment:Promo Rule ID"`
+	SubscribeId int64     `gorm:"not null;comment:Subscribe ID"`
+	OrderNo     string    `gorm:"type:varchar(255);not null;default:'';index:idx_order_no;comment:Order No"`
+	PromoPrice  int64     `gorm:"type:bigint;not null;default:0;comment:Promo Price"`
+	CreatedAt   time.Time `gorm:"<-:create;comment:Create Time"`
+}
+
+func (*Usage) TableName() string {
+	return "promo_usage"
+}

internal/svc/serviceContext.go

@@ -21,6 +21,7 @@ import (
 	logmessage "github.com/perfect-panel/server/internal/model/logmessage"
 	"github.com/perfect-panel/server/internal/model/order"
 	"github.com/perfect-panel/server/internal/model/payment"
+	"github.com/perfect-panel/server/internal/model/promo"
 	"github.com/perfect-panel/server/internal/model/subscribe"
 	"github.com/perfect-panel/server/internal/model/system"
 	"github.com/perfect-panel/server/internal/model/ticket"
@@ -45,7 +46,7 @@ type ServiceContext struct {
 	ExchangeRate       float64
 	GeoIP              *IPLocation
 	SignatureValidator *signature.Validator
-	S3Store             *storage.S3Store
+	S3Store            *storage.S3Store
 
 	//NodeCache   *cache.NodeCacheClient
 	AuthModel       auth.Model
@@ -63,6 +64,7 @@ type ServiceContext struct {
 	RedemptionCodeModel      redemption.RedemptionCodeModel
 	RedemptionRecordModel    redemption.RedemptionRecordModel
 	PaymentModel             payment.Model
+	PromoModel               promo.Model
 	DocumentModel            document.Model
 	SubscribeModel           subscribe.Model
 	TrafficLogModel          traffic.Model
@@ -138,6 +140,7 @@ func NewServiceContext(c config.Config) *ServiceContext {
 		RedemptionCodeModel:   redemption.NewRedemptionCodeModel(db, rds),
 		RedemptionRecordModel: redemption.NewRedemptionRecordModel(db, rds),
 		PaymentModel:          payment.NewModel(db, rds),
+		PromoModel:            promo.NewModel(db, rds),
 		DocumentModel:         document.NewModel(db, rds),
 		SubscribeModel:        subscribe.NewModel(db, rds),
 		TrafficLogModel:       traffic.NewModel(db),

internal/types/types.go

@@ -316,6 +316,45 @@ type ContactRequest struct {
 	Notes        string `json:"notes" validate:"max=2000"`
 }
 
+type PromoPrice struct {
+	Id          int64 `json:"id"`
+	SubscribeId int64 `json:"subscribe_id"`
+	PromoRuleId int64 `json:"promo_rule_id"`
+	Quantity    int64 `json:"quantity"`
+	PromoPrice  int64 `json:"promo_price"`
+	CreatedAt   int64 `json:"created_at"`
+	UpdatedAt   int64 `json:"updated_at"`
+}
+
+type PromoPriceItem struct {
+	SubscribeId int64 `json:"subscribe_id" validate:"required,gt=0"`
+	Quantity    int64 `json:"quantity" validate:"required,gt=0,lte=1000"`
+	PromoPrice  int64 `json:"promo_price" validate:"required,gt=0"`
+}
+
+type PromoRule struct {
+	Id        int64                  `json:"id"`
+	Name      string                 `json:"name"`
+	Type      string                 `json:"type"`
+	Params    map[string]interface{} `json:"params"`
+	Priority  int64                  `json:"priority"`
+	Enabled   bool                   `json:"enabled"`
+	StartTime *int64                 `json:"start_time"`
+	EndTime   *int64                 `json:"end_time"`
+	CreatedAt int64                  `json:"created_at"`
+	UpdatedAt int64                  `json:"updated_at"`
+}
+
+type PromoUsage struct {
+	Id          int64  `json:"id"`
+	UserId      int64  `json:"user_id"`
+	PromoRuleId int64  `json:"promo_rule_id"`
+	SubscribeId int64  `json:"subscribe_id"`
+	OrderNo     string `json:"order_no"`
+	PromoPrice  int64  `json:"promo_price"`
+	CreatedAt   int64  `json:"created_at"`
+}
+
 type Coupon struct {
 	Id         int64   `json:"id"`
 	Name       string  `json:"name"`
@@ -375,6 +414,16 @@ type CreateCouponRequest struct {
 	Enable     *bool   `json:"enable,omitempty"`
 }
 
+type CreatePromoRuleRequest struct {
+	Name      string                 `json:"name" validate:"required,max=100"`
+	Type      string                 `json:"type" validate:"required,oneof=new_user inactive_user campaign"`
+	Params    map[string]interface{} `json:"params"`
+	Priority  int64                  `json:"priority" validate:"gte=0"`
+	Enabled   *bool                  `json:"enabled"`
+	StartTime *int64                 `json:"start_time"`
+	EndTime   *int64                 `json:"end_time"`
+}
+
 type CreateDocumentRequest struct {
 	Title   string   `json:"title" validate:"required"`
 	Content string   `json:"content" validate:"required"`
@@ -1107,6 +1156,48 @@ type GetCouponListResponse struct {
 	List  []Coupon `json:"list"`
 }
 
+type GetPromoPriceListRequest struct {
+	PromoRuleId int64 `form:"promo_rule_id" validate:"required,gt=0"`
+	Page        int64 `form:"page" validate:"required"`
+	Size        int64 `form:"size" validate:"required"`
+}
+
+type GetPromoPriceListResponse struct {
+	Total int64        `json:"total"`
+	List  []PromoPrice `json:"list"`
+}
+
+type GetPromoRuleDetailRequest struct {
+	Id int64 `uri:"id" validate:"required,gt=0"`
+}
+
+type GetPromoRuleListRequest struct {
+	Page    int64  `form:"page" validate:"required"`
+	Size    int64  `form:"size" validate:"required"`
+	Type    string `form:"type" validate:"omitempty,oneof=new_user inactive_user campaign"`
+	Enabled *bool  `form:"enabled"`
+	Search  string `form:"search,omitempty"`
+}
+
+type GetPromoRuleListResponse struct {
+	Total int64       `json:"total"`
+	List  []PromoRule `json:"list"`
+}
+
+type GetPromoUsageListRequest struct {
+	Page        int64  `form:"page" validate:"required"`
+	Size        int64  `form:"size" validate:"required"`
+	RuleId      int64  `form:"rule_id,omitempty"`
+	UserId      int64  `form:"user_id,omitempty"`
+	SubscribeId int64  `form:"subscribe_id,omitempty"`
+	OrderNo     string `form:"order_no,omitempty"`
+}
+
+type GetPromoUsageListResponse struct {
+	Total int64        `json:"total"`
+	List  []PromoUsage `json:"list"`
+}
+
 type GetDetailRequest struct {
 	Id int64 `form:"id" validate:"required"`
 }
@@ -3128,6 +3219,30 @@ type UpdateCouponRequest struct {
 	Enable     *bool   `json:"enable,omitempty"`
 }
 
+type SetPromoPriceRequest struct {
+	PromoRuleId int64            `json:"promo_rule_id" validate:"required,gt=0"`
+	Items       []PromoPriceItem `json:"items" validate:"required,dive"`
+}
+
+type DeletePromoPriceRequest struct {
+	Id int64 `uri:"id" validate:"required,gt=0"`
+}
+
+type DeletePromoRuleRequest struct {
+	Id int64 `uri:"id" validate:"required,gt=0"`
+}
+
+type UpdatePromoRuleRequest struct {
+	Id        int64                  `uri:"id" validate:"required,gt=0"`
+	Name      string                 `json:"name" validate:"required,max=100"`
+	Type      string                 `json:"type" validate:"required,oneof=new_user inactive_user campaign"`
+	Params    map[string]interface{} `json:"params"`
+	Priority  int64                  `json:"priority" validate:"gte=0"`
+	Enabled   *bool                  `json:"enabled"`
+	StartTime *int64                 `json:"start_time"`
+	EndTime   *int64                 `json:"end_time"`
+}
+
 type UpdateDocumentRequest struct {
 	Id      int64    `json:"id" validate:"required"`
 	Title   string   `json:"title" validate:"required"`