65 lines
2.1 KiB
Go
65 lines
2.1 KiB
Go
package app
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import (
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"bindbox-game/internal/pkg/core"
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)
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type couponStatsResponse struct {
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ValidCount int64 `json:"valid_count"` // 有效优惠券数量
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InvalidCount int64 `json:"invalid_count"` // 已失效优惠券数量
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TotalRemaining int64 `json:"total_remaining"` // 可用优惠券总余额（分）
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TotalSaved int64 `json:"total_saved"` // 累计节省金额（分）
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}
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// GetUserCouponStats 获取用户优惠券统计
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// @Summary 获取用户优惠券统计
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// @Description 获取用户优惠券各状态数量和累计金额
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// @Tags APP端.用户
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// @Accept json
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// @Produce json
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// @Param user_id path integer true "用户ID"
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// @Security LoginVerifyToken
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// @Success 200 {object} couponStatsResponse
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// @Failure 400 {object} code.Failure
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// @Router /api/app/users/{user_id}/coupons/stats [get]
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func (h *handler) GetUserCouponStats() core.HandlerFunc {
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return func(ctx core.Context) {
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rsp := new(couponStatsResponse)
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userID := int64(ctx.SessionUserInfo().Id)
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uc := h.readDB.UserCoupons
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// 有效：status=1 且 balance>0
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validCount, _ := uc.WithContext(ctx.RequestContext()).ReadDB().
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Where(uc.UserID.Eq(userID), uc.Status.Eq(1), uc.BalanceAmount.Gt(0)).Count()
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// 已失效：(status=1 且 balance=0) 或 status=2 或 status=3
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var invalidCount int64
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_ = h.repo.GetDbR().Raw(
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"SELECT COUNT(*) FROM user_coupons WHERE user_id = ? AND ((status = 1 AND balance_amount = 0) OR status IN (2, 3))",
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userID,
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).Scan(&invalidCount).Error
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// 可用优惠券总余额
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var totalRemaining int64
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_ = h.repo.GetDbR().Raw(
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"SELECT COALESCE(SUM(balance_amount), 0) FROM user_coupons WHERE user_id = ? AND status = 1 AND balance_amount > 0",
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userID,
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).Scan(&totalRemaining).Error
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// 累计节省金额
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var totalSaved int64
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_ = h.repo.GetDbR().Raw(
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"SELECT COALESCE(SUM(ABS(change_amount)), 0) FROM user_coupon_ledger WHERE user_id = ? AND change_amount < 0",
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userID,
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).Scan(&totalSaved).Error
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rsp.ValidCount = validCount
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rsp.InvalidCount = invalidCount
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rsp.TotalRemaining = totalRemaining
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rsp.TotalSaved = totalSaved
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ctx.Payload(rsp)
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}
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}
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