fix integer overflow

api/resolvers/item.js

@@ -532,7 +532,7 @@ export default {
 
       const checkSats = async () => {
         // check if the user has the funds to run for the first minute
-        const minuteMsats = maxBid * 1000 / 30 / 24 / 60
+        const minuteMsats = maxBid / 1296
         const user = models.user.findUnique({ where: { id: me.id } })
         if (user.msats < minuteMsats) {
           throw new UserInputError('insufficient funds')

api/resolvers/user.js

@@ -159,7 +159,7 @@ export default {
       if (me?.id !== user.id) {
         return 0
       }
-      return Math.floor(user.msats / 1000)
+      return Math.floor(user.msats / 1000.0)
     },
     bio: async (user, args, { models }) => {
       return getItem(user, { id: user.bioId }, { models })

api/typeDefs/user.js

@@ -46,7 +46,6 @@ export default gql`
     tipDefault: Int!
     bio: Item
     sats: Int!
-    msats: Int!
     upvotePopover: Boolean!
     tipPopover: Boolean!
   }

prisma/migrations/20220226164520_status_update/migration.sql

@@ -0,0 +1,33 @@
+-- AlterTable
+ALTER TABLE "Item" RENAME COLUMN "noSatsAt" TO "statusUpdatedAt";
+
+-- charge the user for the auction item
+CREATE OR REPLACE FUNCTION run_auction(item_id INTEGER) RETURNS void AS $$
+    DECLARE
+        bid INTEGER;
+        user_id INTEGER;
+        user_msats INTEGER;
+        item_status "Status";
+    BEGIN
+        PERFORM ASSERT_SERIALIZED();
+
+        -- extract data we need
+        SELECT ("maxBid" * 1000 / 30 / 24 / 60), "userId", status INTO bid, user_id, item_status FROM "Item" WHERE id = item_id;
+        SELECT msats INTO user_msats FROM users WHERE id = user_id;
+
+        -- check if user wallet has enough sats
+        IF bid > user_msats THEN
+            -- if not, set status = NOSATS and statusUpdatedAt to now_utc if not already set
+            IF item_status <> 'NOSATS' THEN
+                UPDATE "Item" SET status = 'NOSATS', "statusUpdatedAt" = now_utc() WHERE id = item_id;
+            END IF;
+        ELSE
+            -- if so, deduct from user
+            UPDATE users SET msats = msats - bid WHERE id = user_id;
+            -- update item status = ACTIVE and statusUpdatedAt = null if NOSATS
+            IF item_status = 'NOSATS' THEN
+                UPDATE "Item" SET status = 'ACTIVE', "statusUpdatedAt" = now_utc() WHERE id = item_id;
+            END IF;
+        END IF;
+    END;
+$$ LANGUAGE plpgsql;

prisma/migrations/20220226170533_msats_bigint/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "users" ALTER COLUMN "msats" SET DEFAULT 0,
+ALTER COLUMN "msats" SET DATA TYPE BIGINT;

prisma/migrations/20220226174624_int/migration.sql

@@ -0,0 +1,41 @@
+/*
+  Warnings:
+
+  - You are about to alter the column `msats` on the `users` table. The data in that column could be lost. The data in that column will be cast from `BigInt` to `Integer`.
+
+*/
+-- AlterTable
+ALTER TABLE "users" ALTER COLUMN "msats" SET DEFAULT 0,
+ALTER COLUMN "msats" SET DATA TYPE INTEGER;
+
+
+-- charge the user for the auction item
+CREATE OR REPLACE FUNCTION run_auction(item_id INTEGER) RETURNS void AS $$
+    DECLARE
+        bid INTEGER;
+        user_id INTEGER;
+        user_msats INTEGER;
+        item_status "Status";
+    BEGIN
+        PERFORM ASSERT_SERIALIZED();
+
+        -- extract data we need
+        SELECT ("maxBid" * 5 / 216), "userId", status INTO bid, user_id, item_status FROM "Item" WHERE id = item_id;
+        SELECT msats INTO user_msats FROM users WHERE id = user_id;
+
+        -- check if user wallet has enough sats
+        IF bid > user_msats THEN
+            -- if not, set status = NOSATS and statusUpdatedAt to now_utc if not already set
+            IF item_status <> 'NOSATS' THEN
+                UPDATE "Item" SET status = 'NOSATS', "statusUpdatedAt" = now_utc() WHERE id = item_id;
+            END IF;
+        ELSE
+            -- if so, deduct from user
+            UPDATE users SET msats = msats - bid WHERE id = user_id;
+            -- update item status = ACTIVE and statusUpdatedAt = null if NOSATS
+            IF item_status = 'NOSATS' THEN
+                UPDATE "Item" SET status = 'ACTIVE', "statusUpdatedAt" = now_utc() WHERE id = item_id;
+            END IF;
+        END IF;
+    END;
+$$ LANGUAGE plpgsql;

prisma/schema.prisma

@@ -113,7 +113,7 @@ model Item {
   maxSalary       Int?
   maxBid          Int?
   status          Status    @default(ACTIVE)
-  noSatsAt  DateTime?
+  statusUpdatedAt DateTime?
   location        String?
   latitude        Float?
   longitude       Float?