81 lines
2.6 KiB
Go
81 lines
2.6 KiB
Go
package service
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import (
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"context"
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"fmt"
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"log/slog"
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"strings"
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dbent "github.com/Wei-Shaw/sub2api/ent"
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"github.com/Wei-Shaw/sub2api/ent/paymentorder"
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"github.com/Wei-Shaw/sub2api/ent/paymentproviderinstance"
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"github.com/Wei-Shaw/sub2api/internal/payment"
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)
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// GetWebhookProvider returns the provider instance that should verify a webhook.
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// It resolves the original provider instance from the order whenever possible and
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// only falls back to a registry provider for legacy/single-instance scenarios.
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func (s *PaymentService) GetWebhookProvider(ctx context.Context, providerKey, outTradeNo string) (payment.Provider, error) {
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if outTradeNo != "" {
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order, err := s.entClient.PaymentOrder.Query().Where(paymentorder.OutTradeNo(outTradeNo)).Only(ctx)
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if err == nil {
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if psHasPinnedProviderInstance(order) {
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return s.getPinnedOrderProvider(ctx, order)
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}
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inst, err := s.getOrderProviderInstance(ctx, order)
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if err != nil {
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return nil, fmt.Errorf("load order provider instance: %w", err)
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}
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if inst != nil {
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return s.createProviderFromInstance(ctx, inst)
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}
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if !s.webhookRegistryFallbackAllowed(ctx, providerKey) {
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return nil, fmt.Errorf("webhook provider fallback is ambiguous for %s", providerKey)
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}
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s.EnsureProviders(ctx)
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return s.registry.GetProviderByKey(providerKey)
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}
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}
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if !s.webhookRegistryFallbackAllowed(ctx, providerKey) {
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return nil, fmt.Errorf("webhook provider fallback is ambiguous for %s", providerKey)
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}
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s.EnsureProviders(ctx)
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return s.registry.GetProviderByKey(providerKey)
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}
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func (s *PaymentService) getPinnedOrderProvider(ctx context.Context, o *dbent.PaymentOrder) (payment.Provider, error) {
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inst, err := s.getOrderProviderInstance(ctx, o)
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if err != nil {
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return nil, fmt.Errorf("load order provider instance: %w", err)
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}
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if inst == nil {
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return nil, fmt.Errorf("order %d provider instance is missing", o.ID)
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}
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return s.createProviderFromInstance(ctx, inst)
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}
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func (s *PaymentService) webhookRegistryFallbackAllowed(ctx context.Context, providerKey string) bool {
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providerKey = strings.TrimSpace(providerKey)
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if providerKey == "" || s == nil || s.entClient == nil {
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return false
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}
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count, err := s.entClient.PaymentProviderInstance.Query().
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Where(
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paymentproviderinstance.ProviderKeyEQ(providerKey),
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paymentproviderinstance.EnabledEQ(true),
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).
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Count(ctx)
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if err != nil {
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slog.Warn("payment webhook fallback instance count failed", "provider", providerKey, "error", err)
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return false
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}
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return count <= 1
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}
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func psHasPinnedProviderInstance(order *dbent.PaymentOrder) bool {
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return order != nil && order.ProviderInstanceID != nil && strings.TrimSpace(*order.ProviderInstanceID) != ""
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}
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