nostr verification working

src/services/nostrService.js

@@ -1,15 +1,76 @@
 const uuid = require("uuid");
 const crypto = require("crypto");
+const { Op } = require('sequelize');
 
 const NostrChallengeCreated = require('../models/NostrChallengeCreated');
+const NostrChallengeCompleted = require("../models/NostrChallengeCompleted");
+
+const constants = require('../constants');
+
 
 async function createNostrChallenge() {
+
+    const currentTimestamp = new Date();
+    const expiryTimestamp = new Date(currentTimestamp.getTime());
+    expiryTimestamp.setSeconds(expiryTimestamp.getSeconds() + constants.DEFAULT_NOSTR_CHALLENGE_DURATION_SECONDS);
+
     const nostrChallenge = await NostrChallengeCreated.create({
         'uuid': uuid.v7(),
         challenge: crypto.randomBytes(32).toString("hex"),
-        created_at: new Date().toISOString()
+        expires_at: expiryTimestamp.toISOString(),
+        created_at: currentTimestamp.toISOString()
     });
+
     return nostrChallenge;
 }
 
-exports.createNostrChallenge = createNostrChallenge;
+async function isNostrChallengeFresh(challengeString) {
+    const nostrChallenge = await NostrChallengeCreated.findOne({
+        where: {
+            challenge: challengeString,
+            expires_at: {
+                [Op.gt]: new Date()
+            }
+        }
+    });
+
+    if (nostrChallenge) {
+        return true;
+    }
+    return false;
+}
+
+async function hasNostrChallengeBeenCompleted(challengeString) {
+    const completedNostrChallenge = await NostrChallengeCompleted.findOne(
+        {
+            where: {
+                challenge: challengeString
+            }
+        }
+    );
+
+    if (completedNostrChallenge) {
+        return true;
+    }
+    return false;
+}
+
+async function completeNostrChallenge(
+    challenge,
+    signedEvent
+) {
+    await NostrChallengeCompleted.create({
+        'uuid': uuid.v7(),
+        challenge: challenge,
+        signed_event: signedEvent,
+        created_at: new Date().toISOString()
+    }
+    );
+
+    return;
+}
+
+exports.createNostrChallenge = createNostrChallenge;
+exports.isNostrChallengeFresh = isNostrChallengeFresh;
+exports.hasNostrChallengeBeenCompleted = hasNostrChallengeBeenCompleted;
+exports.completeNostrChallenge = completeNostrChallenge;