shanshanzhong
e0b2be2058
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64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package order
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import (
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"context"
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"encoding/json"
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"time"
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commonLogic "github.com/perfect-panel/server/internal/logic/common"
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"github.com/perfect-panel/server/internal/types"
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"gorm.io/gorm"
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)
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type newUserDiscountEligibility struct {
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Eligibility *commonLogic.NewUserEligibilityContext
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Discounts []types.SubscribeDiscount
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NewUserOnly bool
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WithinWindow bool
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EligibleForDiscount bool
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}
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func resolveNewUserDiscountEligibility(
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ctx context.Context,
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db *gorm.DB,
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currentUserID int64,
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subscribeID int64,
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quantity int64,
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discountJSON string,
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) (*newUserDiscountEligibility, error) {
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state := &newUserDiscountEligibility{}
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if discountJSON == "" {
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return state, nil
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}
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_ = json.Unmarshal([]byte(discountJSON), &state.Discounts)
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state.NewUserOnly = isNewUserOnlyForQuantity(state.Discounts, quantity)
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eligibility, err := commonLogic.ResolveNewUserEligibility(ctx, db, currentUserID)
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if err != nil {
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return nil, err
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}
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state.Eligibility = eligibility
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state.WithinWindow = eligibility.IsNewUserAt(time.Now())
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state.EligibleForDiscount = state.WithinWindow
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if state.EligibleForDiscount && state.NewUserOnly {
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historyCount, countErr := commonLogic.CountScopedSubscribePurchaseOrders(
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ctx,
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db,
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eligibility.ScopeUserIDs,
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subscribeID,
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[]int64{2, 5},
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"",
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)
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if countErr != nil {
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return nil, countErr
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}
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if historyCount >= 1 {
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state.EligibleForDiscount = false
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}
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}
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return state, nil
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}
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