init: 1.0.0

2025-04-25 12:08:29 +09:00
commit 8addcc584b
1031 changed files with 76472 additions and 0 deletions
@@ -0,0 +1,229 @@
+package order
+
+import (
+	"context"
+	"encoding/json"
+	"time"
+
+	"github.com/perfect-panel/ppanel-server/pkg/constant"
+
+	"github.com/hibiken/asynq"
+	"github.com/perfect-panel/ppanel-server/internal/model/order"
+	"github.com/perfect-panel/ppanel-server/internal/model/user"
+	"github.com/perfect-panel/ppanel-server/pkg/tool"
+	"github.com/perfect-panel/ppanel-server/pkg/xerr"
+	queue "github.com/perfect-panel/ppanel-server/queue/types"
+	"github.com/pkg/errors"
+	"gorm.io/gorm"
+
+	"github.com/perfect-panel/ppanel-server/internal/svc"
+	"github.com/perfect-panel/ppanel-server/internal/types"
+	"github.com/perfect-panel/ppanel-server/pkg/logger"
+)
+
+type PurchaseLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+const (
+	CloseOrderTimeMinutes = 15
+)
+
+// NewPurchaseLogic purchase Subscription
+func NewPurchaseLogic(ctx context.Context, svcCtx *svc.ServiceContext) *PurchaseLogic {
+	return &PurchaseLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.PurchaseOrderResponse, err error) {
+
+	u, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
+	if !ok {
+		logger.Error("current user is not found in context")
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
+	}
+	// find user subscription
+	userSub, err := l.svcCtx.UserModel.QueryUserSubscribe(l.ctx, u.Id)
+	if err != nil {
+		l.Errorw("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("user_id", u.Id))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find user subscription error: %v", err.Error())
+	}
+	if l.svcCtx.Config.Subscribe.SingleModel {
+		if len(userSub) > 0 {
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.UserSubscribeExist), "user has subscription")
+		}
+	}
+
+	// find subscribe plan
+	sub, err := l.svcCtx.SubscribeModel.FindOne(l.ctx, req.SubscribeId)
+
+	if err != nil {
+		l.Errorw("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("subscribe_id", req.SubscribeId))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find subscribe error: %v", err.Error())
+	}
+	// check subscribe plan status
+	if !*sub.Sell {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "subscribe not sell")
+	}
+	// check subscribe plan limit
+	if sub.Quota > 0 {
+		var count int64
+		for _, v := range userSub {
+			if v.SubscribeId == req.SubscribeId {
+				count += 1
+			}
+		}
+		if count >= sub.Quota {
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.SubscribeQuotaLimit), "quota limit")
+		}
+	}
+
+	var discount float64 = 1
+	if sub.Discount != "" {
+		var dis []types.SubscribeDiscount
+		_ = json.Unmarshal([]byte(sub.Discount), &dis)
+		discount = getDiscount(dis, req.Quantity)
+	}
+	price := sub.UnitPrice * req.Quantity
+	// discount amount
+	amount := int64(float64(price) * discount)
+	discountAmount := price - amount
+	var coupon int64 = 0
+	// Calculate the coupon deduction
+	if req.Coupon != "" {
+		couponInfo, err := l.svcCtx.CouponModel.FindOneByCode(l.ctx, req.Coupon)
+		if err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponNotExist), "coupon not found")
+			}
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find coupon error: %v", err.Error())
+		}
+		if couponInfo.Count <= couponInfo.UsedCount {
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponInsufficientUsage), "coupon used")
+		}
+		couponSub := tool.StringToInt64Slice(couponInfo.Subscribe)
+		if len(couponSub) > 0 && !tool.Contains(couponSub, req.SubscribeId) {
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponNotApplicable), "coupon not match")
+		}
+		var count int64
+		err = l.svcCtx.DB.Transaction(func(tx *gorm.DB) error {
+			return tx.Model(&order.Order{}).Where("user_id = ? and coupon = ?", u.Id, req.Coupon).Count(&count).Error
+		})
+
+		if err != nil {
+			l.Errorw("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("user_id", u.Id), logger.Field("coupon", req.Coupon))
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find coupon error: %v", err.Error())
+		}
+		if count >= couponInfo.UserLimit {
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponInsufficientUsage), "coupon limit exceeded")
+		}
+		coupon = calculateCoupon(amount, couponInfo)
+	}
+	// Calculate the handling fee
+	amount -= coupon
+	var deductionAmount int64
+	// Check user deduction amount
+	if u.GiftAmount > 0 {
+		if u.GiftAmount >= amount {
+			deductionAmount = amount
+			amount = 0
+			u.GiftAmount -= amount
+		} else {
+			deductionAmount = u.GiftAmount
+			amount -= u.GiftAmount
+			u.GiftAmount = 0
+		}
+	}
+	// find payment method
+	payment, err := l.svcCtx.PaymentModel.FindOne(l.ctx, req.Payment)
+	if err != nil {
+		l.Logger.Error("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("payment", req.Payment))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find payment method error: %v", err.Error())
+	}
+	var feeAmount int64
+	// Calculate the handling fee
+	if amount > 0 {
+		feeAmount = calculateFee(amount, payment)
+	}
+	// query user is new purchase or renewal
+	isNew, err := l.svcCtx.OrderModel.IsUserEligibleForNewOrder(l.ctx, u.Id)
+	if err != nil {
+		l.Errorw("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("user_id", u.Id))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find user order error: %v", err.Error())
+	}
+	// create order
+	orderInfo := &order.Order{
+		UserId:         u.Id,
+		OrderNo:        tool.GenerateTradeNo(),
+		Type:           1,
+		Quantity:       req.Quantity,
+		Price:          price,
+		Amount:         amount,
+		Discount:       discountAmount,
+		GiftAmount:     deductionAmount,
+		Coupon:         req.Coupon,
+		CouponDiscount: coupon,
+		PaymentId:      payment.Id,
+		Method:         payment.Platform,
+		FeeAmount:      feeAmount,
+		Status:         1,
+		IsNew:          isNew,
+		SubscribeId:    req.SubscribeId,
+	}
+	// Database transaction
+	err = l.svcCtx.DB.Transaction(func(db *gorm.DB) error {
+		// update user deduction && Pre deduction ,Return after canceling the order
+		if orderInfo.GiftAmount > 0 {
+			// update user deduction && Pre deduction ,Return after canceling the order
+			if e := l.svcCtx.UserModel.Update(l.ctx, u, db); err != nil {
+				l.Errorw("[Purchase] Database update error", logger.Field("error", err.Error()), logger.Field("user", u))
+				return e
+			}
+			// create deduction record
+			giftAmountLog := user.GiftAmountLog{
+				UserId:  orderInfo.UserId,
+				OrderNo: orderInfo.OrderNo,
+				Amount:  orderInfo.GiftAmount,
+				Type:    2,
+				Balance: u.GiftAmount,
+				Remark:  "Purchase order deduction",
+			}
+			if e := db.Model(&user.GiftAmountLog{}).Create(&giftAmountLog).Error; e != nil {
+				l.Errorw("[Purchase] Database insert error",
+					logger.Field("error", err.Error()),
+					logger.Field("deductionLog", giftAmountLog),
+				)
+				return e
+			}
+		}
+		// insert order
+		return db.WithContext(l.ctx).Model(&order.Order{}).Create(&orderInfo).Error
+	})
+	if err != nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "insert order error: %v", err.Error())
+	}
+	// Deferred task
+	payload := queue.DeferCloseOrderPayload{
+		OrderNo: orderInfo.OrderNo,
+	}
+	val, err := json.Marshal(payload)
+	if err != nil {
+		l.Errorw("[CreateOrder] Marshal payload error", logger.Field("error", err.Error()), logger.Field("payload", payload))
+	}
+	task := asynq.NewTask(queue.DeferCloseOrder, val, asynq.MaxRetry(3))
+	taskInfo, err := l.svcCtx.Queue.Enqueue(task, asynq.ProcessIn(CloseOrderTimeMinutes*time.Minute))
+	if err != nil {
+		l.Errorw("[CreateOrder] Enqueue task error", logger.Field("error", err.Error()), logger.Field("task", task))
+	} else {
+		l.Infow("[CreateOrder] Enqueue task success", logger.Field("TaskID", taskInfo.ID))
+	}
+
+	return &types.PurchaseOrderResponse{
+		OrderNo: orderInfo.OrderNo,
+	}, nil
+}