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handle_lookup_invoice_request.go
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handle_lookup_invoice_request.go
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package main
import (
"context"
"encoding/json"
"fmt"
"strings"
"github.com/nbd-wtf/go-nostr"
decodepay "github.com/nbd-wtf/ln-decodepay"
"github.com/sirupsen/logrus"
)
func (svc *Service) HandleLookupInvoiceEvent(ctx context.Context, request *Nip47Request, event *nostr.Event, app App, ss []byte) (result *nostr.Event, err error) {
// TODO: move to a shared function
nostrEvent := NostrEvent{App: app, NostrId: event.ID, Content: event.Content, State: "received"}
err = svc.db.Create(&nostrEvent).Error
if err != nil {
svc.Logger.WithFields(logrus.Fields{
"eventId": event.ID,
"eventKind": event.Kind,
"appId": app.ID,
}).Errorf("Failed to save nostr event: %v", err)
return nil, err
}
// TODO: move to a shared function
hasPermission, code, message := svc.hasPermission(&app, event, request.Method, 0)
if !hasPermission {
svc.Logger.WithFields(logrus.Fields{
"eventId": event.ID,
"eventKind": event.Kind,
"appId": app.ID,
}).Errorf("App does not have permission: %s %s", code, message)
return svc.createResponse(event, Nip47Response{
ResultType: NIP_47_LOOKUP_INVOICE_METHOD,
Error: &Nip47Error{
Code: code,
Message: message,
}}, ss)
}
// TODO: move to a shared generic function
lookupInvoiceParams := &Nip47LookupInvoiceParams{}
err = json.Unmarshal(request.Params, lookupInvoiceParams)
if err != nil {
svc.Logger.WithFields(logrus.Fields{
"eventId": event.ID,
"eventKind": event.Kind,
"appId": app.ID,
}).Errorf("Failed to decode nostr event: %v", err)
return nil, err
}
svc.Logger.WithFields(logrus.Fields{
"eventId": event.ID,
"eventKind": event.Kind,
"appId": app.ID,
"invoice": lookupInvoiceParams.Invoice,
"paymentHash": lookupInvoiceParams.PaymentHash,
}).Info("Looking up invoice")
paymentHash := lookupInvoiceParams.PaymentHash
if paymentHash == "" {
paymentRequest, err := decodepay.Decodepay(strings.ToLower(lookupInvoiceParams.Invoice))
if err != nil {
svc.Logger.WithFields(logrus.Fields{
"eventId": event.ID,
"eventKind": event.Kind,
"appId": app.ID,
"invoice": lookupInvoiceParams.Invoice,
}).Errorf("Failed to decode bolt11 invoice: %v", err)
return svc.createResponse(event, Nip47Response{
ResultType: NIP_47_LOOKUP_INVOICE_METHOD,
Error: &Nip47Error{
Code: NIP_47_ERROR_INTERNAL,
Message: fmt.Sprintf("Failed to decode bolt11 invoice: %s", err.Error()),
},
}, ss)
}
paymentHash = paymentRequest.PaymentHash
}
transaction, err := svc.lnClient.LookupInvoice(ctx, event.PubKey, paymentHash)
if err != nil {
svc.Logger.WithFields(logrus.Fields{
"eventId": event.ID,
"eventKind": event.Kind,
"appId": app.ID,
"invoice": lookupInvoiceParams.Invoice,
"paymentHash": lookupInvoiceParams.PaymentHash,
}).Infof("Failed to lookup invoice: %v", err)
nostrEvent.State = NOSTR_EVENT_STATE_HANDLER_ERROR
svc.db.Save(&nostrEvent)
return svc.createResponse(event, Nip47Response{
ResultType: NIP_47_LOOKUP_INVOICE_METHOD,
Error: &Nip47Error{
Code: NIP_47_ERROR_INTERNAL,
Message: fmt.Sprintf("Something went wrong while looking up invoice: %s", err.Error()),
},
}, ss)
}
responsePayload := &Nip47LookupInvoiceResponse{
Nip47Transaction: *transaction,
}
nostrEvent.State = NOSTR_EVENT_STATE_HANDLER_EXECUTED
svc.db.Save(&nostrEvent)
return svc.createResponse(event, Nip47Response{
ResultType: NIP_47_LOOKUP_INVOICE_METHOD,
Result: responsePayload,
},
ss)
}