init: 1.0.0

internal/logic/public/user/unsubscribeLogic.go

@@ -0,0 +1,71 @@
+package user
+
+import (
+	"context"
+
+	"github.com/perfect-panel/ppanel-server/pkg/constant"
+	"github.com/perfect-panel/ppanel-server/pkg/xerr"
+	"github.com/pkg/errors"
+
+	"github.com/perfect-panel/ppanel-server/internal/model/user"
+	"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 UnsubscribeLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// NewUnsubscribeLogic Unsubscribe
+func NewUnsubscribeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UnsubscribeLogic {
+	return &UnsubscribeLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *UnsubscribeLogic) Unsubscribe(req *types.UnsubscribeRequest) error {
+	u, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
+	if !ok {
+		logger.Error("current user is not found in context")
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
+	}
+	remainingAmount, err := CalculateRemainingAmount(l.ctx, l.svcCtx, req.Id)
+	if err != nil {
+		return err
+	}
+	// update user subscribe
+	err = l.svcCtx.UserModel.Transaction(l.ctx, func(db *gorm.DB) error {
+		var userSub user.Subscribe
+		if err := db.Model(&user.Subscribe{}).Where("id = ?", req.Id).First(&userSub).Error; err != nil {
+			return err
+		}
+		userSub.Status = 4
+		if err := l.svcCtx.UserModel.UpdateSubscribe(l.ctx, &userSub); err != nil {
+			return err
+		}
+		balance := remainingAmount + u.Balance
+		// insert deduction log
+		balanceLog := user.BalanceLog{
+			UserId:  userSub.UserId,
+			OrderId: userSub.OrderId,
+			Amount:  remainingAmount,
+			Type:    4,
+			Balance: balance,
+		}
+		if err := db.Model(&user.BalanceLog{}).Create(&balanceLog).Error; err != nil {
+			return err
+		}
+		// update user balance
+		u.Balance = balance
+		return l.svcCtx.UserModel.Update(l.ctx, u)
+	})
+
+	return err
+}