拆分订单仓储模块
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yml
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package order
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import (
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"encoding/json"
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"math"
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"strconv"
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"hfb_sys/backend/internal/model"
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"hfb_sys/backend/pkg/money"
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"gorm.io/datatypes"
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)
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type orderPricing struct {
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RentAmountCent int64
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OwnerRentAmountCent int64
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PlatformFeeCent int64
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}
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type checkoutSettlement struct {
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OwnerRentIncomeCent int64
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DepositCompensationCent int64
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OwnerIncomeCent int64
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RentRefundCent int64
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DepositRefundCent int64
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RenterRefundCent int64
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PlatformFeeCent int64
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ActualRentAmountCent int64
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}
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func orderDurationHours(order model.RentalOrder) int {
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if order.EstimatedDurationHours > 0 {
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return order.EstimatedDurationHours
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}
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return internalOrderHours
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}
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func buildOrderPricing(listing model.RentalListing, account model.GameAccount) orderPricing {
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rentAmountCent := listing.PriceCent
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ownerRentAmountCent := int64(math.Round(readSnapshotPrice(account.AssetSummary, "seller_total_price") * 100))
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if ownerRentAmountCent <= 0 || ownerRentAmountCent > rentAmountCent {
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ownerRentAmountCent = rentAmountCent
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}
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platformFeeCent := int64(math.Round(readSnapshotPrice(account.AssetSummary, "platform_markup_amount") * 100))
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if platformFeeCent <= 0 || ownerRentAmountCent+platformFeeCent != rentAmountCent {
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platformFeeCent = rentAmountCent - ownerRentAmountCent
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}
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if platformFeeCent < 0 {
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platformFeeCent = 0
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}
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return orderPricing{
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RentAmountCent: rentAmountCent,
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OwnerRentAmountCent: ownerRentAmountCent,
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PlatformFeeCent: platformFeeCent,
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}
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}
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func readSnapshotPrice(raw datatypes.JSON, key string) float64 {
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return readOrderSnapshotPrice(raw, key)
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}
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func readOrderSnapshotPrice(raw datatypes.JSON, key string) float64 {
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if len(raw) == 0 {
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return 0
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}
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var snapshot map[string]any
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if err := json.Unmarshal(raw, &snapshot); err != nil {
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return 0
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}
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if assetSummary, ok := snapshot["asset_summary"].(map[string]any); ok {
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snapshot = assetSummary
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}
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breakdown, ok := snapshot["price_breakdown"].(map[string]any)
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if !ok {
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return 0
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}
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return readJSONNumber(breakdown[key])
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}
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func readJSONNumber(value any) float64 {
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switch typed := value.(type) {
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case float64:
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return typed
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case float32:
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return float64(typed)
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case int:
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return float64(typed)
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case int64:
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return float64(typed)
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case json.Number:
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number, err := typed.Float64()
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if err != nil {
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return 0
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}
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return number
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case string:
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number, err := strconv.ParseFloat(typed, 64)
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if err != nil {
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return 0
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}
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return number
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default:
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return 0
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}
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}
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func buildCheckout(order model.RentalOrder, initiatedBy uint64, status string, content string, evidenceURLS []string, consumableAmountCent int64, coinConsumedM float64, otherAmountCent int64, explicitDeductCent int64, useExplicitDeduct bool) (model.OrderCheckout, error) {
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if consumableAmountCent < 0 || coinConsumedM < 0 || otherAmountCent < 0 || explicitDeductCent < 0 {
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return model.OrderCheckout{}, ErrInvalidCheckoutAmount
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}
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deductAmountCent := otherAmountCent
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if useExplicitDeduct {
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deductAmountCent = explicitDeductCent
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}
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if deductAmountCent > order.DepositAmountCent {
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return model.OrderCheckout{}, ErrInvalidCheckoutAmount
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}
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settlement := calculateCheckoutSettlement(order, consumableAmountCent, roundQuantity(coinConsumedM), deductAmountCent)
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evidence, err := marshalStringList(evidenceURLS)
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if err != nil {
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return model.OrderCheckout{}, err
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}
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return model.OrderCheckout{
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OrderID: order.ID,
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InitiatedBy: initiatedBy,
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Status: status,
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RentAmountCent: settlement.ActualRentAmountCent,
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OwnerRentAmountCent: settlement.OwnerRentIncomeCent,
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PlatformFeeCent: settlement.PlatformFeeCent,
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DepositAmountCent: order.DepositAmountCent,
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ConsumableAmountCent: consumableAmountCent,
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CoinConsumedM: roundQuantity(coinConsumedM),
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OtherAmountCent: otherAmountCent,
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DepositDeductAmountCent: settlement.DepositCompensationCent,
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RenterRefundAmountCent: settlement.RenterRefundCent,
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OwnerIncomeAmountCent: settlement.OwnerIncomeCent,
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Content: content,
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EvidenceURLS: evidence,
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}, nil
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}
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func buildCheckoutSettlement(order model.RentalOrder, checkout *model.OrderCheckout) checkoutSettlement {
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return calculateCheckoutSettlement(order, checkout.ConsumableAmountCent, checkout.CoinConsumedM, checkout.DepositDeductAmountCent)
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}
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func calculateCheckoutSettlement(order model.RentalOrder, consumableAmountCent int64, coinConsumedM float64, depositDeductAmountCent int64) checkoutSettlement {
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orderRentAmountCent := order.RentAmountCent
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orderOwnerRentAmountCent := order.OwnerRentAmountCent
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orderDepositAmountCent := order.DepositAmountCent
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buyerCoinBasePriceCent := int64(math.Round(readOrderSnapshotPrice(order.AccountSnapshot, "buyer_coin_base_price") * 100))
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if buyerCoinBasePriceCent <= 0 || buyerCoinBasePriceCent > orderRentAmountCent {
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buyerCoinBasePriceCent = orderRentAmountCent
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}
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sellerCoinBasePriceCent := int64(math.Round(readOrderSnapshotPrice(order.AccountSnapshot, "seller_coin_base_price") * 100))
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if sellerCoinBasePriceCent <= 0 || sellerCoinBasePriceCent > orderOwnerRentAmountCent {
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sellerCoinBasePriceCent = orderOwnerRentAmountCent
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}
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prepaidConsumablePriceCent := int64(math.Round(readOrderSnapshotPrice(order.AccountSnapshot, "consumable_price") * 100))
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if prepaidConsumablePriceCent <= 0 || prepaidConsumablePriceCent > orderRentAmountCent-buyerCoinBasePriceCent {
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prepaidConsumablePriceCent = maxCent(orderRentAmountCent-buyerCoinBasePriceCent, 0)
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}
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prepaidOwnerConsumablePriceCent := maxCent(orderOwnerRentAmountCent-sellerCoinBasePriceCent, 0)
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totalCoinM := readOrderSnapshotCoinM(order.AccountSnapshot)
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coinUseRatio := 1.0
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if totalCoinM > 0 {
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coinUseRatio = minRatio(maxRatio(roundQuantity(coinConsumedM)/totalCoinM, 0), 1)
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}
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usedBuyerCoinPriceCent := int64(math.Round(float64(buyerCoinBasePriceCent) * coinUseRatio))
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usedOwnerCoinPriceCent := int64(math.Round(float64(sellerCoinBasePriceCent) * coinUseRatio))
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usedBuyerConsumablePriceCent := minCent(consumableAmountCent, prepaidConsumablePriceCent)
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consumableUseRatio := 1.0
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if prepaidConsumablePriceCent > 0 {
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consumableUseRatio = minRatio(maxRatio(float64(usedBuyerConsumablePriceCent)/float64(prepaidConsumablePriceCent), 0), 1)
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}
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usedOwnerConsumablePriceCent := int64(math.Round(float64(prepaidOwnerConsumablePriceCent) * consumableUseRatio))
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actualRentAmountCent := minCent(usedBuyerCoinPriceCent+usedBuyerConsumablePriceCent, orderRentAmountCent)
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ownerRentIncomeCent := minCent(usedOwnerCoinPriceCent+usedOwnerConsumablePriceCent, orderOwnerRentAmountCent)
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depositCompensationCent := minCent(depositDeductAmountCent, orderDepositAmountCent)
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rentRefundCent := maxCent(orderRentAmountCent-actualRentAmountCent, 0)
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depositRefundCent := maxCent(orderDepositAmountCent-depositCompensationCent, 0)
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return checkoutSettlement{
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OwnerRentIncomeCent: ownerRentIncomeCent,
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DepositCompensationCent: depositCompensationCent,
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OwnerIncomeCent: ownerRentIncomeCent + depositCompensationCent,
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RentRefundCent: rentRefundCent,
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DepositRefundCent: depositRefundCent,
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RenterRefundCent: rentRefundCent + depositRefundCent,
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PlatformFeeCent: maxCent(actualRentAmountCent-ownerRentIncomeCent, 0),
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ActualRentAmountCent: actualRentAmountCent,
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}
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}
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func readOrderSnapshotCoinM(raw datatypes.JSON) float64 {
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if len(raw) == 0 {
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return 0
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}
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var snapshot map[string]any
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if err := json.Unmarshal(raw, &snapshot); err != nil {
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return 0
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}
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return roundQuantity(readJSONNumber(snapshot["haf_coin_amount"]) / 1000000)
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}
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// roundMoney 使用统一的角精度（0.1元）
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func roundMoney(value float64) float64 {
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return money.Round(value)
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}
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func roundQuantity(value float64) float64 {
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return math.Round(value*100) / 100
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}
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// minMoney 返回较小金额（角精度）
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func minMoney(a float64, b float64) float64 {
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return money.Min(a, b)
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}
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// maxMoney 返回较大金额（角精度）
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func maxMoney(a float64, b float64) float64 {
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return money.Max(a, b)
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}
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func minCent(a int64, b int64) int64 {
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if a < b {
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return a
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}
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return b
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}
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func maxCent(a int64, b int64) int64 {
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if a > b {
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return a
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}
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return b
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}
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func minRatio(a float64, b float64) float64 {
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if a < b {
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return a
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}
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return b
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}
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func maxRatio(a float64, b float64) float64 {
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if a > b {
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return a
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}
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return b
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}
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