668 lines
24 KiB
Go
668 lines
24 KiB
Go
package app
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import (
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"bindbox-game/internal/code"
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"bindbox-game/internal/pkg/core"
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"bindbox-game/internal/pkg/validation"
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"bindbox-game/internal/repository/mysql/dao"
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"bindbox-game/internal/repository/mysql/model"
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"context"
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"crypto/hmac"
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"crypto/sha256"
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"encoding/base64"
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"encoding/json"
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"errors"
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"fmt"
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"math/rand"
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"net/http"
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"time"
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titlesvc "bindbox-game/internal/service/title"
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"gorm.io/gorm/clause"
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)
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type joinLotteryRequest struct {
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ActivityID int64 `json:"activity_id"`
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IssueID int64 `json:"issue_id"`
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Count int64 `json:"count"`
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Channel string `json:"channel"`
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SlotIndex []int64 `json:"slot_index"`
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CouponID *int64 `json:"coupon_id"`
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ItemCardID *int64 `json:"item_card_id"`
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UsePoints *int64 `json:"use_points"`
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UseGamePass *bool `json:"use_game_pass"`
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}
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type joinLotteryResponse struct {
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JoinID string `json:"join_id"`
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OrderNo string `json:"order_no"`
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Queued bool `json:"queued"`
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DrawMode string `json:"draw_mode"`
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RewardID int64 `json:"reward_id,omitempty"`
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RewardName string `json:"reward_name,omitempty"`
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ActualAmount int64 `json:"actual_amount"`
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Status int32 `json:"status"`
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}
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// JoinLottery 用户参与抽奖
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// @Summary 用户参与抽奖
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// @Description 提交活动ID与期ID创建参与记录与订单，支持积分抵扣，返回参与ID、订单号、抽奖模式及是否进入队列
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// @Tags APP端.抽奖
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// @Accept json
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// @Produce json
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// @Security LoginVerifyToken
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// @Param RequestBody body joinLotteryRequest true "请求参数"
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// @Success 200 {object} joinLotteryResponse
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// @Failure 400 {object} code.Failure
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// @Router /api/app/lottery/join [post]
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func (h *handler) JoinLottery() core.HandlerFunc {
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return func(ctx core.Context) {
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req := new(joinLotteryRequest)
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rsp := new(joinLotteryResponse)
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if err := ctx.ShouldBindJSON(req); err != nil {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
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return
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}
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// DEBUG LOG: Print request params to diagnose frontend issue
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reqBytes, _ := json.Marshal(req)
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h.logger.Info(fmt.Sprintf("JoinLottery Request Params: UserID=%d Payload=%s", ctx.SessionUserInfo().Id, string(reqBytes)))
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userID := int64(ctx.SessionUserInfo().Id)
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h.logger.Info(fmt.Sprintf("JoinLottery Start: UserID=%d ActivityID=%d IssueID=%d", userID, req.ActivityID, req.IssueID))
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activity, err := h.activity.GetActivity(ctx.RequestContext(), req.ActivityID)
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if err != nil || activity == nil {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 170001, "activity not found"))
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return
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}
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if !activity.AllowCoupons && req.CouponID != nil && *req.CouponID > 0 {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 170009, "本活动不支持优惠券"))
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return
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}
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if !activity.AllowItemCards && req.ItemCardID != nil && *req.ItemCardID > 0 {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 170010, "本活动不支持道具卡"))
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return
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}
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// Ichiban Restriction: No Item Cards allowed (even if Activity logic might technically allow it, enforce strict rule here)
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if activity.PlayType == "ichiban" && req.ItemCardID != nil && *req.ItemCardID > 0 {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 170010, "一番赏活动不支持道具卡"))
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return
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}
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cfgMode := "scheduled"
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if activity.DrawMode != "" {
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cfgMode = activity.DrawMode
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}
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// 定时一番赏：开奖前20秒禁止下单，防止订单抖动
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if activity.PlayType == "ichiban" && cfgMode == "scheduled" && !activity.ScheduledTime.IsZero() {
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now := time.Now()
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cutoff := activity.ScheduledTime.Add(-20 * time.Second)
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if now.After(cutoff) && now.Before(activity.ScheduledTime.Add(30*time.Second)) {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 170012, "距离开奖时间不足20秒，暂停下单"))
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return
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}
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}
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if activity.PlayType == "ichiban" {
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if e := h.validateIchibanSlots(ctx, req); e != nil {
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ctx.AbortWithError(e)
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return
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}
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}
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joinID := h.randomID("J")
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orderNo := h.randomID("O")
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c := req.Count
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if c <= 0 {
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c = 1
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}
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total := activity.PriceDraw * c
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order := h.orderModel(userID, orderNo, total, req.ActivityID, req.IssueID, c)
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if len(req.SlotIndex) > 0 {
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order.Remark = fmt.Sprintf("lottery:activity:%d|issue:%d|count:%d|slots:%s", req.ActivityID, req.IssueID, c, buildSlotsRemarkWithScalarCount(req.SlotIndex))
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}
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if activity.AllowItemCards && req.ItemCardID != nil && *req.ItemCardID > 0 {
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order.ItemCardID = *req.ItemCardID
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if order.Remark == "" {
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order.Remark = fmt.Sprintf("lottery:activity:%d|issue:%d|count:%d", req.ActivityID, req.IssueID, c)
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}
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order.Remark = order.Remark + fmt.Sprintf("|itemcard:%d", *req.ItemCardID)
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}
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order.PointsAmount = 0
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order.PointsLedgerID = 0
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order.ActualAmount = order.TotalAmount
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applied := int64(0)
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// Game Pass Conflict Check: If using Game Pass, do NOT allow coupons.
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isUsingGamePass := req.UseGamePass != nil && *req.UseGamePass
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if isUsingGamePass {
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req.CouponID = nil
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}
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if activity.AllowCoupons && req.CouponID != nil && *req.CouponID > 0 {
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applied = h.applyCouponWithCap(ctx, userID, order, req.ActivityID, *req.CouponID)
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if applied > 0 {
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order.CouponID = *req.CouponID
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}
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}
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// Title Discount Logic
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// 1. Fetch active effects for this user, scoped to this activity/issue/category
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// Note: Category ID is not readily available on Activity struct in this scope easily without join, skipping detailed scope for now or fetch if needed.
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// Assuming scope by ActivityID and IssueID is enough.
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titleEffects, _ := h.title.ResolveActiveEffects(ctx.RequestContext(), userID, titlesvc.EffectScope{
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ActivityID: &req.ActivityID,
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IssueID: &req.IssueID,
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})
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// 2. Apply Type=2 (Discount) effects
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for _, ef := range titleEffects {
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if ef.EffectType == 2 {
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// Parse ParamsJSON: {"discount_type":"percentage","value_x1000":...,"max_discount_x1000":...}
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// Simple parsing here or helper
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var p struct {
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DiscountType string `json:"discount_type"`
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ValueX1000 int64 `json:"value_x1000"`
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MaxDiscountX1000 int64 `json:"max_discount_x1000"`
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}
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if jsonErr := json.Unmarshal([]byte(ef.ParamsJSON), &p); jsonErr == nil {
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var discount int64
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if p.DiscountType == "percentage" {
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// e.g. 900 = 90% (10% off), or value_x1000 is the discount rate?
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// Usually "value" is what you pay? Title "8折" -> value=800?
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// Let's assume value_x1000 is the DISCOUNT amount (e.g. 200 = 20% off).
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// Wait, standard is usually "multiplier". Title "Discount" usually means "Cut".
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// Let's look at `ValidateEffectParams`: "percentage" or "fixed".
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// Assume ValueX1000 is discount ratio. 200 = 20% off.
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discount = order.ActualAmount * p.ValueX1000 / 1000
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} else if p.DiscountType == "fixed" {
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discount = p.ValueX1000 // In cents
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}
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if p.MaxDiscountX1000 > 0 && discount > p.MaxDiscountX1000 {
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discount = p.MaxDiscountX1000
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}
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if discount > order.ActualAmount {
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discount = order.ActualAmount
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}
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if discount > 0 {
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order.ActualAmount -= discount
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// Append to remark or separate logging?
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if order.Remark == "" {
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order.Remark = fmt.Sprintf("title_discount:%d:%d", ef.ID, discount)
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} else {
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order.Remark += fmt.Sprintf("|title_discount:%d:%d", ef.ID, discount)
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}
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}
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}
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}
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}
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// 3. Check Game Pass (Pre-check)
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// We will do the actual deduction inside transaction, but we can fail fast here or setup variables.
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useGamePass := false
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if req.UseGamePass != nil && *req.UseGamePass {
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// Check if user has enough valid passes
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// Note: We need to find specific passes to deduct.
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// Logic: Find all valid passes, sort by activity specific first, then expire soonest?
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// Matching game logic: "ActivityID Desc" (Specific first)
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count := int(c)
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validPasses, err := h.writeDB.UserGamePasses.WithContext(ctx.RequestContext()).
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Where(h.writeDB.UserGamePasses.UserID.Eq(userID)).
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Where(h.writeDB.UserGamePasses.Remaining.Gt(0)).
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Where(h.writeDB.UserGamePasses.ActivityID.In(0, req.ActivityID)).
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Order(h.writeDB.UserGamePasses.ActivityID.Desc(), h.writeDB.UserGamePasses.ExpiredAt.Asc()). // 优先专用，然后优先过期
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Find()
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if err != nil {
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ctx.AbortWithError(core.Error(http.StatusInternalServerError, code.ServerError, err.Error()))
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return
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}
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totalAvailable := 0
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now := time.Now()
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for _, p := range validPasses {
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if p.ExpiredAt.IsZero() || p.ExpiredAt.After(now) {
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totalAvailable += int(p.Remaining)
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}
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}
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if totalAvailable < count {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 170012, "次数卡余额不足"))
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return
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}
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useGamePass = true
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}
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h.logger.Info(fmt.Sprintf("JoinLottery Tx Start: UserID=%d", userID))
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err = h.writeDB.Transaction(func(tx *dao.Query) error {
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// Handle Game Pass Deduction
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if useGamePass {
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count := int(c)
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validPasses, _ := tx.UserGamePasses.WithContext(ctx.RequestContext()).
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Clauses(clause.Locking{Strength: "UPDATE"}).
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Where(tx.UserGamePasses.UserID.Eq(userID)).
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Where(tx.UserGamePasses.Remaining.Gt(0)).
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Where(tx.UserGamePasses.ActivityID.In(0, req.ActivityID)).
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Order(tx.UserGamePasses.ActivityID.Desc(), tx.UserGamePasses.ExpiredAt.Asc()).
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Find()
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now := time.Now()
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deducted := 0
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for _, p := range validPasses {
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if deducted >= count {
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break
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}
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if !p.ExpiredAt.IsZero() && p.ExpiredAt.Before(now) {
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continue
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}
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canDeduct := int(p.Remaining)
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if canDeduct > (count - deducted) {
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canDeduct = count - deducted
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}
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// Update pass
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if _, err := tx.UserGamePasses.WithContext(ctx.RequestContext()).
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Where(tx.UserGamePasses.ID.Eq(p.ID)).
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Updates(map[string]any{
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"remaining": p.Remaining - int32(canDeduct),
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"total_used": p.TotalUsed + int32(canDeduct),
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}); err != nil {
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return err
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}
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deducted += canDeduct
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// Record usage for remark (Format: gp_use:ID:Count)
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if order.Remark == "" {
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order.Remark = fmt.Sprintf("gp_use:%d:%d", p.ID, canDeduct)
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} else {
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order.Remark += fmt.Sprintf("|gp_use:%d:%d", p.ID, canDeduct)
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}
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}
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if deducted < count {
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return errors.New("次数卡余额不足")
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}
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// Set Order to be fully paid by Game Pass
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order.ActualAmount = 0
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order.SourceType = 4 // Cleanly mark as Game Pass source
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// Legacy marker for backward compatibility or simple check
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order.Remark += "|use_game_pass"
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// Note: If we change SourceType to 4, ProcessOrderLottery might skip it if checks SourceType.
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// Lottery app usually expects SourceType=2 or similar.
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// Let's KEEP SourceType as is (likely 2 for ichiban), but Amount=0 ensures it's treated as Paid.
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}
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if !useGamePass && req.UsePoints != nil && *req.UsePoints > 0 {
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bal, _ := h.user.GetPointsBalance(ctx.RequestContext(), userID)
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// req.UsePoints 是前端传入的积分数，需要转换为分
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usePtsCents, _ := h.user.PointsToCents(ctx.RequestContext(), *req.UsePoints)
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// bal 已经是分单位
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if bal > 0 && usePtsCents > bal {
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usePtsCents = bal
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}
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// deductCents 是要从订单金额中抵扣的分数
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deductCents := usePtsCents
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if deductCents > order.ActualAmount {
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deductCents = order.ActualAmount
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}
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if deductCents > 0 {
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// needPts 是实际需要扣除的分数
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needPts := deductCents
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// Inline ConsumePointsFor logic using tx
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// Lock rows
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rows, errFind := tx.UserPoints.WithContext(ctx.RequestContext()).Clauses(clause.Locking{Strength: "UPDATE"}).Where(tx.UserPoints.UserID.Eq(userID)).Order(tx.UserPoints.ValidEnd.Asc()).Find()
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if errFind != nil {
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return errFind
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}
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remain := needPts
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now := time.Now()
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var fullConsumeIDs []int64
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var lastConsumeID int64
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var lastConsumePoints int64
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for _, r := range rows {
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if !r.ValidEnd.IsZero() && r.ValidEnd.Before(now) {
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continue
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}
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if remain <= 0 {
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break
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}
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use := r.Points
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if use > remain {
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use = remain
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lastConsumeID = r.ID
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lastConsumePoints = r.Points - use
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} else {
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fullConsumeIDs = append(fullConsumeIDs, r.ID)
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}
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remain -= use
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}
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// 批量更新完全扣除的记录
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if len(fullConsumeIDs) > 0 {
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if _, errUpd := tx.UserPoints.WithContext(ctx.RequestContext()).Where(tx.UserPoints.ID.In(fullConsumeIDs...)).Updates(map[string]any{"points": 0}); errUpd != nil {
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return errUpd
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}
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}
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// 更新最后一条记录（如果有部分剩余）
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if lastConsumeID > 0 {
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if _, errUpd := tx.UserPoints.WithContext(ctx.RequestContext()).Where(tx.UserPoints.ID.Eq(lastConsumeID)).Updates(map[string]any{"points": lastConsumePoints}); errUpd != nil {
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return errUpd
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}
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}
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if remain > 0 {
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return errors.New("insufficient_points")
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}
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// Record Ledger
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led := &model.UserPointsLedger{UserID: userID, Action: "consume_order", Points: -needPts, RefTable: "orders", RefID: orderNo, Remark: "consume by lottery"}
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if errCreate := tx.UserPointsLedger.WithContext(ctx.RequestContext()).Create(led); errCreate != nil {
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return errCreate
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}
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order.PointsAmount = deductCents
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order.PointsLedgerID = led.ID
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order.ActualAmount = order.ActualAmount - deductCents
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}
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}
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// Check if fully paid (by discount, game pass, or points)
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if order.ActualAmount <= 0 {
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order.Status = 2 // Paid
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order.PaidAt = time.Now()
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}
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err = tx.Orders.WithContext(ctx.RequestContext()).Omit(tx.Orders.PaidAt, tx.Orders.CancelledAt).Create(order)
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if err != nil {
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return err
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}
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// 一番赏占位 (针对内抵扣/次数卡导致的 0 元支付成功的订单补偿占位逻辑)
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if order.Status == 2 && activity.PlayType == "ichiban" {
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for _, si := range req.SlotIndex {
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slotIdx0 := si - 1 // 转换为 0-based 索引
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// 再次检查占用情况 (事务内原子防并发)
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cnt, _ := tx.IssuePositionClaims.WithContext(ctx.RequestContext()).Where(tx.IssuePositionClaims.IssueID.Eq(req.IssueID), tx.IssuePositionClaims.SlotIndex.Eq(slotIdx0)).Count()
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if cnt > 0 {
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return errors.New("slot_unavailable")
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}
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if err := tx.IssuePositionClaims.WithContext(ctx.RequestContext()).Create(&model.IssuePositionClaims{
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IssueID: req.IssueID,
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SlotIndex: slotIdx0,
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UserID: userID,
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OrderID: order.ID,
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}); err != nil {
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return err
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}
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}
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}
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// 优惠券预扣：在事务中原子性扣减余额
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// 如果余额不足（被其他并发订单消耗），事务回滚
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if applied > 0 && order.CouponID > 0 {
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// 原子更新优惠券余额和状态
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now := time.Now()
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res := tx.Orders.UnderlyingDB().Exec(`
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UPDATE user_coupons
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SET balance_amount = balance_amount - ?,
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status = CASE WHEN balance_amount - ? <= 0 THEN 4 ELSE 4 END,
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used_order_id = ?,
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used_at = ?
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WHERE id = ? AND user_id = ? AND balance_amount >= ? AND status IN (1, 4)
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`, applied, applied, order.ID, now, order.CouponID, userID, applied)
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if res.Error != nil {
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return fmt.Errorf("优惠券预扣失败: %w", res.Error)
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}
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if res.RowsAffected == 0 {
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// 余额不足或状态不对，事务回滚
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return errors.New("优惠券余额不足或已被使用")
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}
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// 记录使用关系
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_ = tx.Orders.UnderlyingDB().Exec("INSERT INTO order_coupons (order_id, user_coupon_id, applied_amount, created_at) VALUES (?,?,?,NOW(3))", order.ID, order.CouponID, applied).Error
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}
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return nil
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})
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if err != nil {
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h.logger.Error(fmt.Sprintf("JoinLottery Tx Failed: %v", err))
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ctx.AbortWithError(core.Error(http.StatusInternalServerError, 170002, err.Error()))
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return
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}
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rsp.JoinID = joinID
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rsp.OrderNo = orderNo
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||
rsp.ActualAmount = order.ActualAmount
|
||
rsp.Status = order.Status
|
||
|
||
// 即时开奖触发（已支付 + 即时开奖模式）
|
||
if shouldTriggerInstantDraw(order.Status, activity.DrawMode) {
|
||
go func() {
|
||
_ = h.activity.ProcessOrderLottery(context.Background(), order.ID)
|
||
}()
|
||
}
|
||
rsp.DrawMode = cfgMode
|
||
if order.ActualAmount == 0 {
|
||
now := time.Now()
|
||
_, _ = h.writeDB.Orders.WithContext(ctx.RequestContext()).Where(h.writeDB.Orders.OrderNo.Eq(orderNo)).Updates(map[string]any{h.writeDB.Orders.Status.ColumnName().String(): 2, h.writeDB.Orders.PaidAt.ColumnName().String(): now})
|
||
// 0元订单：统一由 Service 处理优惠券扣减与流水记录
|
||
_ = h.user.DeductCouponsForPaidOrder(ctx.RequestContext(), nil, userID, order.ID, now)
|
||
|
||
// 异步触发任务中心逻辑
|
||
go func() {
|
||
_ = h.task.OnOrderPaid(context.Background(), userID, order.ID)
|
||
}()
|
||
|
||
rsp.Queued = true
|
||
} else {
|
||
rsp.Queued = true
|
||
}
|
||
ctx.Payload(rsp)
|
||
}
|
||
}
|
||
|
||
type resultQueryRequest struct {
|
||
JoinID string `form:"join_id"`
|
||
OrderID int64 `form:"order_id"`
|
||
}
|
||
|
||
type resultResponse struct {
|
||
Result map[string]any `json:"result"`
|
||
Results []map[string]any `json:"results"`
|
||
Receipt map[string]any `json:"receipt"`
|
||
}
|
||
|
||
// GetLotteryResult 抽奖结果查询
|
||
// @Summary 抽奖结果查询
|
||
// @Description 根据参与ID与期ID查询抽奖结果；即时模式会立即开奖并发奖；同时返回服务端签名凭证用于校验
|
||
// @Tags APP端.抽奖
|
||
// @Accept json
|
||
// @Produce json
|
||
// @Security LoginVerifyToken
|
||
// @Param join_id query string true "参与ID"
|
||
// @Param order_id query int false "订单ID，用于区分同一用户多次参与"
|
||
// @Param issue_id query int false "期ID"
|
||
// @Success 200 {object} resultResponse
|
||
// @Failure 400 {object} code.Failure
|
||
func (h *handler) GetLotteryResult() core.HandlerFunc {
|
||
return func(ctx core.Context) {
|
||
req := new(resultQueryRequest)
|
||
rsp := new(resultResponse)
|
||
if err := ctx.ShouldBindQuery(req); err != nil {
|
||
ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
|
||
return
|
||
}
|
||
issueIDStr := ctx.RequestInputParams().Get("issue_id")
|
||
var issueID int64
|
||
if issueIDStr != "" {
|
||
for i := 0; i < len(issueIDStr); i++ {
|
||
c := issueIDStr[i]
|
||
if c < '0' || c > '9' {
|
||
issueID = 0
|
||
break
|
||
}
|
||
issueID = issueID*10 + int64(c-'0')
|
||
}
|
||
}
|
||
var orderID int64
|
||
var ord *model.Orders
|
||
if req.OrderID > 0 {
|
||
orderID = req.OrderID
|
||
ord, _ = h.readDB.Orders.WithContext(ctx.RequestContext()).Where(h.readDB.Orders.ID.Eq(orderID), h.readDB.Orders.UserID.Eq(int64(ctx.SessionUserInfo().Id))).First()
|
||
}
|
||
userID := int64(ctx.SessionUserInfo().Id)
|
||
issue, _ := h.readDB.ActivityIssues.WithContext(ctx.RequestContext()).Where(h.readDB.ActivityIssues.ID.Eq(issueID)).First()
|
||
activityID := func() int64 {
|
||
if issue != nil {
|
||
return issue.ActivityID
|
||
}
|
||
return 0
|
||
}()
|
||
actCommit, err := func() (*model.Activities, error) {
|
||
if activityID <= 0 {
|
||
return nil, nil
|
||
}
|
||
return h.readDB.Activities.WithContext(ctx.RequestContext()).Where(h.readDB.Activities.ID.Eq(activityID)).First()
|
||
}()
|
||
if err != nil || actCommit == nil || len(actCommit.CommitmentSeedMaster) == 0 {
|
||
ctx.AbortWithError(core.Error(http.StatusBadRequest, 170003, "commitment not found"))
|
||
return
|
||
}
|
||
cfgMode := "scheduled"
|
||
if act, _ := h.readDB.Activities.WithContext(ctx.RequestContext()).Where(h.readDB.Activities.ID.Eq(activityID)).First(); act != nil && act.DrawMode != "" {
|
||
cfgMode = act.DrawMode
|
||
}
|
||
// 即时开奖/结果补齐：仅在订单已支付的情况下执行
|
||
if ord != nil && ord.Status == 2 && cfgMode == "instant" {
|
||
_ = h.activity.ProcessOrderLottery(ctx.RequestContext(), ord.ID)
|
||
}
|
||
|
||
// 获取最终的开奖记录
|
||
var logs []*model.ActivityDrawLogs
|
||
if orderID > 0 {
|
||
logs, _ = h.readDB.ActivityDrawLogs.WithContext(ctx.RequestContext()).Where(h.readDB.ActivityDrawLogs.OrderID.Eq(orderID)).Order(h.readDB.ActivityDrawLogs.DrawIndex).Find()
|
||
} else {
|
||
logs, _ = h.readDB.ActivityDrawLogs.WithContext(ctx.RequestContext()).Where(h.readDB.ActivityDrawLogs.UserID.Eq(userID), h.readDB.ActivityDrawLogs.IssueID.Eq(issueID)).Order(h.readDB.ActivityDrawLogs.DrawIndex).Find()
|
||
}
|
||
|
||
if len(logs) > 0 {
|
||
// 设置第一个为主结果 (兼容旧版单个结果显示)
|
||
lg0 := logs[0]
|
||
rw0, _ := h.readDB.ActivityRewardSettings.WithContext(ctx.RequestContext()).Where(h.readDB.ActivityRewardSettings.ID.Eq(lg0.RewardID)).First()
|
||
// 获取第一个奖励的商品名称
|
||
firstProdName := ""
|
||
if rw0 != nil && rw0.ProductID > 0 {
|
||
if p, _ := h.readDB.Products.WithContext(ctx.RequestContext()).Where(h.readDB.Products.ID.Eq(rw0.ProductID)).First(); p != nil {
|
||
firstProdName = p.Name
|
||
}
|
||
}
|
||
rsp.Result = map[string]any{
|
||
"reward_id": lg0.RewardID,
|
||
"reward_name": firstProdName,
|
||
}
|
||
|
||
// 填充所有结果
|
||
rewardCache := make(map[int64]*model.ActivityRewardSettings)
|
||
productCache := make(map[int64]*model.Products)
|
||
|
||
for _, lg := range logs {
|
||
rw, ok := rewardCache[lg.RewardID]
|
||
if !ok {
|
||
rw, _ = h.readDB.ActivityRewardSettings.WithContext(ctx.RequestContext()).Where(h.readDB.ActivityRewardSettings.ID.Eq(lg.RewardID)).First()
|
||
rewardCache[lg.RewardID] = rw
|
||
}
|
||
|
||
var img string
|
||
var prodName string
|
||
if rw != nil && rw.ProductID > 0 {
|
||
prod, ok := productCache[rw.ProductID]
|
||
if !ok {
|
||
prod, _ = h.readDB.Products.WithContext(ctx.RequestContext()).Where(h.readDB.Products.ID.Eq(rw.ProductID)).First()
|
||
productCache[rw.ProductID] = prod
|
||
}
|
||
if prod != nil {
|
||
prodName = prod.Name
|
||
if prod.ImagesJSON != "" {
|
||
var imgs []string
|
||
if json.Unmarshal([]byte(prod.ImagesJSON), &imgs) == nil && len(imgs) > 0 {
|
||
img = imgs[0]
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
rsp.Results = append(rsp.Results, map[string]any{
|
||
"reward_id": lg.RewardID,
|
||
"reward_name": prodName,
|
||
"image": img,
|
||
"draw_index": lg.DrawIndex + 1,
|
||
})
|
||
}
|
||
}
|
||
ts := time.Now().UnixMilli()
|
||
nonce := rand.Int63()
|
||
mac := hmac.New(sha256.New, actCommit.CommitmentSeedMaster)
|
||
mac.Write([]byte(h.joinSigPayload(userID, issueID, ts, nonce)))
|
||
sig := base64.StdEncoding.EncodeToString(mac.Sum(nil))
|
||
if rsp.Result == nil {
|
||
rsp.Result = map[string]any{}
|
||
}
|
||
rsp.Receipt = map[string]any{
|
||
"issue_id": issueID,
|
||
"seed_version": actCommit.CommitmentStateVersion,
|
||
"timestamp": ts,
|
||
"nonce": nonce,
|
||
"signature": sig,
|
||
"algorithm": "HMAC-SHA256",
|
||
"inputs": map[string]any{"user_id": userID, "issue_id": issueID, "order_id": orderID, "timestamp": ts, "nonce": nonce},
|
||
}
|
||
ctx.Payload(rsp)
|
||
}
|
||
}
|
||
|
||
// validateIchibanSlots 一番赏格位校验
|
||
// 功能：校验请求中的格位选择是否有效（数量匹配、范围合法、未被占用）
|
||
// 参数：
|
||
// - ctx：请求上下文
|
||
// - req：JoinLottery 请求体，使用其中的 issue_id、count、slot_index
|
||
//
|
||
// 返回：core.BusinessError 用于直接传递给 AbortWithError；合法时返回 nil
|
||
func (h *handler) validateIchibanSlots(ctx core.Context, req *joinLotteryRequest) core.BusinessError {
|
||
var totalSlots int64
|
||
_ = h.repo.GetDbR().Raw("SELECT COALESCE(SUM(original_qty),0) FROM activity_reward_settings WHERE issue_id=?", req.IssueID).Scan(&totalSlots).Error
|
||
if totalSlots <= 0 {
|
||
return core.Error(http.StatusBadRequest, 170008, "no slots")
|
||
}
|
||
// 1. 强制校验：必须选择位置
|
||
if len(req.SlotIndex) == 0 {
|
||
return core.Error(http.StatusBadRequest, code.ParamBindError, "一番赏必须选择位置")
|
||
}
|
||
if req.Count <= 0 || req.Count != int64(len(req.SlotIndex)) {
|
||
return core.Error(http.StatusBadRequest, code.ParamBindError, "参数错误：数量与位置不匹配")
|
||
}
|
||
|
||
// 2. 内存中去重和范围检查
|
||
selectedSlots := make([]int64, 0, len(req.SlotIndex))
|
||
seen := make(map[int64]struct{}, len(req.SlotIndex))
|
||
for _, si := range req.SlotIndex {
|
||
if _, ok := seen[si]; ok {
|
||
return core.Error(http.StatusBadRequest, 170011, "duplicate slots not allowed")
|
||
}
|
||
seen[si] = struct{}{}
|
||
if si < 1 || si > totalSlots {
|
||
return core.Error(http.StatusBadRequest, 170008, "slot out of range")
|
||
}
|
||
selectedSlots = append(selectedSlots, si-1)
|
||
}
|
||
|
||
// 3. 批量查询数据库检查格位是否已被占用
|
||
var occupiedCount int64
|
||
_ = h.repo.GetDbR().Raw("SELECT COUNT(*) FROM issue_position_claims WHERE issue_id=? AND slot_index IN ?", req.IssueID, selectedSlots).Scan(&occupiedCount).Error
|
||
if occupiedCount > 0 {
|
||
// 即使是并发场景，这里做一个 Pre-check 也能拦截大部分冲突
|
||
return core.Error(http.StatusBadRequest, 170007, "部分位置已被占用，请刷新重试")
|
||
}
|
||
return nil
|
||
}
|