web

2025-11-28 15:18:10 +08:00
parent ad4a600af9
commit 5683f35942
188 changed files with 53680 additions and 1062 deletions
--- a/server/internal/repository/coupon.go
+++ b/server/internal/repository/coupon.go
@@ -1,6 +1,7 @@
 package repository

 import (
+	"context"
 	"dianshang/internal/model"
 	"time"

@@ -121,3 +122,286 @@ func (r *CouponRepository) RestoreCoupon(userCouponID uint) error {
 			"used_time": nil, // 清除使用时间
 		}).Error
 }
+
+// ==================== 管理端方法 ====================
+
+// GetCouponListForAdmin 获取优惠券列表（管理端）
+func (r *CouponRepository) GetCouponListForAdmin(page, pageSize int, status, couponType, keyword string) ([]model.Coupon, int64, error) {
+	var coupons []model.Coupon
+	var total int64
+
+	query := r.db.Model(&model.Coupon{})
+
+	// 状态筛选
+	if status != "" {
+		query = query.Where("status = ?", status)
+	}
+
+	// 类型筛选
+	if couponType != "" {
+		query = query.Where("type = ?", couponType)
+	}
+
+	// 关键词搜索
+	if keyword != "" {
+		query = query.Where("name LIKE ? OR description LIKE ?", "%"+keyword+"%", "%"+keyword+"%")
+	}
+
+	// 获取总数
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	// 分页查询
+	offset := (page - 1) * pageSize
+	err := query.Order("created_at DESC").
+		Limit(pageSize).
+		Offset(offset).
+		Find(&coupons).Error
+
+	return coupons, total, err
+}
+
+// GetCouponUsageStats 获取优惠券使用统计
+func (r *CouponRepository) GetCouponUsageStats(couponID uint) (int, int, error) {
+	// 获取领取数
+	var receivedCount int64
+	err := r.db.Model(&model.UserCoupon{}).Where("coupon_id = ?", couponID).Count(&receivedCount).Error
+	if err != nil {
+		return 0, 0, err
+	}
+
+	// 获取使用数
+	var usedCount int64
+	err = r.db.Model(&model.UserCoupon{}).Where("coupon_id = ? AND status = ?", couponID, 1).Count(&usedCount).Error
+	if err != nil {
+		return 0, 0, err
+	}
+
+	return int(receivedCount), int(usedCount), nil
+}
+
+// Create 创建优惠券
+func (r *CouponRepository) Create(coupon *model.Coupon) error {
+	return r.db.Create(coupon).Error
+}
+
+// Update 更新优惠券
+func (r *CouponRepository) Update(couponID uint, updates map[string]interface{}) error {
+	return r.db.Model(&model.Coupon{}).Where("id = ?", couponID).Updates(updates).Error
+}
+
+// Delete 删除优惠券
+func (r *CouponRepository) Delete(couponID uint) error {
+	return r.db.Delete(&model.Coupon{}, couponID).Error
+}
+
+// CheckCouponHasUsers 检查优惠券是否有用户领取
+func (r *CouponRepository) CheckCouponHasUsers(couponID uint) (bool, error) {
+	var count int64
+	err := r.db.Model(&model.UserCoupon{}).Where("coupon_id = ?", couponID).Count(&count).Error
+	return count > 0, err
+}
+
+// BatchDelete 批量删除优惠券
+func (r *CouponRepository) BatchDelete(couponIDs []uint) error {
+	return r.db.Delete(&model.Coupon{}, couponIDs).Error
+}
+
+// CountTotalCoupons 统计总优惠券数
+func (r *CouponRepository) CountTotalCoupons(ctx context.Context) (int64, error) {
+	var count int64
+	err := r.db.WithContext(ctx).Model(&model.Coupon{}).Count(&count).Error
+	return count, err
+}
+
+// CountActiveCoupons 统计启用的优惠券数
+func (r *CouponRepository) CountActiveCoupons(ctx context.Context) (int64, error) {
+	var count int64
+	now := time.Now()
+	err := r.db.WithContext(ctx).Model(&model.Coupon{}).
+		Where("status = ? AND start_time <= ? AND end_time >= ?", 1, now, now).
+		Count(&count).Error
+	return count, err
+}
+
+// CountTotalReceived 统计总领取数
+func (r *CouponRepository) CountTotalReceived(ctx context.Context, startTime, endTime time.Time) (int64, error) {
+	var count int64
+	query := r.db.WithContext(ctx).Model(&model.UserCoupon{})
+
+	if !startTime.IsZero() && !endTime.IsZero() {
+		query = query.Where("created_at BETWEEN ? AND ?", startTime, endTime)
+	}
+
+	err := query.Count(&count).Error
+	return count, err
+}
+
+// CountTotalUsed 统计总使用数
+func (r *CouponRepository) CountTotalUsed(ctx context.Context, startTime, endTime time.Time) (int64, error) {
+	var count int64
+	query := r.db.WithContext(ctx).Model(&model.UserCoupon{}).Where("status = ?", 1)
+
+	if !startTime.IsZero() && !endTime.IsZero() {
+		query = query.Where("used_time BETWEEN ? AND ?", startTime, endTime)
+	}
+
+	err := query.Count(&count).Error
+	return count, err
+}
+
+// GetCouponTypeStats 获取各类型优惠券统计
+func (r *CouponRepository) GetCouponTypeStats(ctx context.Context) ([]map[string]interface{}, error) {
+	var results []map[string]interface{}
+
+	rows, err := r.db.WithContext(ctx).Model(&model.Coupon{}).
+		Select("type, COUNT(*) as count").
+		Group("type").
+		Rows()
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var couponType, count int
+		if err := rows.Scan(&couponType, &count); err != nil {
+			return nil, err
+		}
+
+		typeName := ""
+		switch couponType {
+		case 1:
+			typeName = "满减券"
+		case 2:
+			typeName = "折扣券"
+		case 3:
+			typeName = "免邮券"
+		}
+
+		results = append(results, map[string]interface{}{
+			"type":       couponType,
+			"type_name":  typeName,
+			"count":      count,
+		})
+	}
+
+	return results, nil
+}
+
+// GetTopCoupons 获取热门优惠券
+func (r *CouponRepository) GetTopCoupons(ctx context.Context, limit int) ([]map[string]interface{}, error) {
+	var results []map[string]interface{}
+
+	err := r.db.WithContext(ctx).Model(&model.Coupon{}).
+		Select("id, name, type, received_count, used_count").
+		Order("received_count DESC").
+		Limit(limit).
+		Scan(&results).Error
+
+	return results, err
+}
+
+// GetUserCouponListForAdmin 获取用户优惠券列表（管理端）
+func (r *CouponRepository) GetUserCouponListForAdmin(userID uint, page, pageSize int) ([]model.UserCoupon, int64, error) {
+	var userCoupons []model.UserCoupon
+	var total int64
+
+	query := r.db.Model(&model.UserCoupon{}).Where("user_id = ?", userID)
+
+	// 获取总数
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	// 分页查询
+	offset := (page - 1) * pageSize
+	err := query.Preload("Coupon").
+		Order("created_at DESC").
+		Limit(pageSize).
+		Offset(offset).
+		Find(&userCoupons).Error
+
+	return userCoupons, total, err
+}
+
+// GetDistributeHistory 获取优惠券发放历史
+func (r *CouponRepository) GetDistributeHistory(page, pageSize int) ([]map[string]interface{}, int64, error) {
+	var history []map[string]interface{}
+	var total int64
+
+	// 先获取总数
+	type CountResult struct {
+		Count int64
+	}
+	var countResult CountResult
+	err := r.db.Model(&model.UserCoupon{}).
+		Select("COUNT(DISTINCT DATE(created_at), coupon_id) as count").
+		Scan(&countResult).Error
+	if err != nil {
+		return nil, 0, err
+	}
+	total = countResult.Count
+
+	// 分页查询分组数据
+	type DistributeRecord struct {
+		DistributeDate string    `gorm:"column:distribute_date"`
+		CouponID       uint      `gorm:"column:coupon_id"`
+		TotalCount     int       `gorm:"column:total_count"`
+		UnusedCount    int       `gorm:"column:unused_count"`
+		UsedCount      int       `gorm:"column:used_count"`
+		CreatedAt      time.Time `gorm:"column:created_at"`
+	}
+
+	var records []DistributeRecord
+	offset := (page - 1) * pageSize
+	err = r.db.Model(&model.UserCoupon{}).
+		Select(`
+			DATE(created_at) as distribute_date,
+			coupon_id,
+			COUNT(*) as total_count,
+			SUM(CASE WHEN status = 0 THEN 1 ELSE 0 END) as unused_count,
+			SUM(CASE WHEN status = 1 THEN 1 ELSE 0 END) as used_count,
+			MIN(created_at) as created_at
+		`).
+		Group("DATE(created_at), coupon_id").
+		Order("created_at DESC").
+		Limit(pageSize).
+		Offset(offset).
+		Scan(&records).Error
+
+	if err != nil {
+		return nil, 0, err
+	}
+
+	// 处理结果
+	for i, record := range records {
+		// 获取优惠券信息
+		var coupon model.Coupon
+		r.db.First(&coupon, record.CouponID)
+
+		// 判断发放类型
+		distributeType := "batch"
+		if record.TotalCount == 1 {
+			distributeType = "single"
+		}
+
+		history = append(history, map[string]interface{}{
+			"id":              i + 1 + offset,
+			"coupon_id":       record.CouponID,
+			"coupon_name":     coupon.Name,
+			"distribute_type": distributeType,
+			"distribute_date": record.DistributeDate,
+			"total_count":     record.TotalCount,
+			"success_count":   record.TotalCount,
+			"fail_count":      0,
+			"used_count":      record.UsedCount,
+			"unused_count":    record.UnusedCount,
+			"admin_name":      "系统",
+			"created_at":      record.CreatedAt,
+		})
+	}
+
+	return history, total, nil
+}