From 557a20ac93be39b77e6683921f7c56df9c928b65 Mon Sep 17 00:00:00 2001
From: Asara <amarpreet@minhas.io>
Date: Sat, 6 May 2023 22:39:04 -0400
Subject: [PATCH] Beginnings of the sync binary

---
 cmd/lnd-verifier/main.go | 88 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 cmd/lnd-verifier/main.go

diff --git a/cmd/lnd-verifier/main.go b/cmd/lnd-verifier/main.go
new file mode 100644
index 0000000..d7a40e4
--- /dev/null
+++ b/cmd/lnd-verifier/main.go
@@ -0,0 +1,88 @@
+package main
+
+import (
+	"context"
+	b64 "encoding/base64"
+	"encoding/hex"
+	"fmt"
+
+	"git.minhas.io/asara/well-goknown/config"
+	"git.minhas.io/asara/well-goknown/logger"
+	"git.minhas.io/asara/well-goknown/redis"
+	"github.com/davecgh/go-spew/spew"
+	"github.com/lightninglabs/lndclient"
+	"github.com/lightningnetwork/lnd/lnrpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func main() {
+	var err error
+	ctx := context.TODO()
+	l := logger.Get()
+	redis.NostrRedisConn, err = redis.New("localhost:6379", "", redis.NostrKeyspace)
+	if err != nil {
+		l.Fatal().Msg("unable to connect to redis")
+	}
+	redis.LndRedisConn, err = redis.New("localhost:6379", "", redis.LndKeyspace)
+	if err != nil {
+		l.Fatal().Msg("unable to connect to redis")
+	}
+	/*
+		// Test to add requests directly to nostr for easy bootstrap/general laziness
+		nostrTest := nostr.NostrRequest{
+			Name:     "asara",
+			Key:      "npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6",
+			Hostname: "devvul.com",
+		}
+		nostr.AddNostrAddr(nostrTest)
+	*/
+
+	macaroon := config.GetConfig().LndMacaroonHex
+	addr := config.GetConfig().LndAddr
+	dec, _ := b64.StdEncoding.DecodeString(config.GetConfig().LndCertB64)
+	lndCert := string(dec)
+	lndCli, err := lndclient.NewBasicClient(addr, "", "", "bitcoind", lndclient.MacaroonData(macaroon), lndclient.TLSData(lndCert))
+	if err != nil {
+		l.Fatal().Msg("unable to connect to lnd")
+	}
+
+	// get requested keys
+	lndRedisCli := redis.LndRedisConn.Client
+	//nostrRedisCli := redis.NostrRedisConn.Client
+
+	requestedKeys := lndRedisCli.Keys(ctx, "requested:*")
+	for _, key := range requestedKeys.Val() {
+		value, err := lndRedisCli.Get(ctx, key).Result()
+		if err != nil {
+			l.Error().Msg(fmt.Sprintf("%s: unable to get key", key))
+		}
+		rHash, err := hex.DecodeString(value)
+		if err != nil {
+			l.Error().Msg(fmt.Sprintf("%s: unable to decode hash for key", key))
+		}
+
+		invoice, err := lndCli.LookupInvoice(ctx, &lnrpc.PaymentHash{
+			RHash: rHash,
+		})
+		if err != nil {
+			switch status.Code(err) {
+			case codes.NotFound:
+				l.Error().Msg(fmt.Sprintf("%s: expired", key))
+				continue
+			default:
+				l.Error().Msg(fmt.Sprintf("%s: unknown error", key))
+				continue
+			}
+		}
+
+		if invoice.Settled {
+			// move requested to verified on nostr redis keyspace
+			// delete current key
+			continue
+		}
+		spew.Dump(invoice)
+		spew.Dump(key)
+		spew.Dump(value)
+	}
+}