sample notify script

4 files changed, 36 insertions, 28 deletions

diff --git a/lib/db.js b/lib/db.js
index acc4bff1..516db236 100644
--- a/lib/db.js
+++ b/lib/db.js
@@ -11,16 +11,9 @@ export let s = (k, v) => db.set(k, JSON.stringify(v));
 
 let retries = {};
 export let t = async (k, f) => {
-  let result;
   try {
-    result = await db.executeIsolated(async db => {
-      await db.watch(k);
-      let v = await db.get(k);
-      await db
-        .multi()
-        .set(k, await f(v))
-        .exec();
-    });
+    await db.watch(k);
+    await f(await db.get(k), db);
   } catch (err) {
     if (!err.message.includes("watch")) throw err;
 
@@ -37,5 +30,4 @@ export let t = async (k, f) => {
   }
 
   delete retries[k];
-  return result;
 };
diff --git a/lib/payments.js b/lib/payments.js
index 386d84d8..d0593447 100644
--- a/lib/payments.js
+++ b/lib/payments.js
@@ -34,16 +34,30 @@ export let debit = async (
 
   if (!amount || amount < 0) fail("Amount must be greater than zero");
 
-  await t(`balance:${uid}`, async balance => {
-    await new Promise(r => setTimeout(r, 100));
-    if (balance < amount) fail("Insufficient funds");
-    return balance - amount;
+  let ourfee = Math.round(amount * config.fee);
+  await t(`balance:${uid}`, async (balance, db) => {
+    await t(`credit:${type}:${uid}`, async (credit, db) => {
+      let covered = Math.min(credit, ourfee) || 0;
+      ourfee -= covered;
+
+      if (balance < amount + ourfee) fail("Insufficient funds");
+      await db
+        .multi()
+        .decrBy(`credit:${type}:${uid}`, covered)
+        .exec();
+    });
+
+    await db
+      .multi()
+      .decrBy(`balance:${uid}`, amount + (ourfee - credit))
+      .exec();
   });
 
   let p = {
     id,
     amount: -amount,
     fee,
+    ourfee,
     memo,
     uid,
     confirmed: true,
@@ -103,9 +117,12 @@ export let credit = async (hash, amount, memo, ref, type = types.internal) => {
     p.id = hash;
   }
 
-  await db
-    .multi()
-    .set(`invoice:${hash}`, JSON.stringify(invoice))
+  let m = await db.multi();
+
+  if ([types.bitcoin, types.lightning].includes(type))
+    m.incrBy(`credit:${type}:${uid}`, Math.round(amount * config.fee));
+
+  m.set(`invoice:${hash}`, JSON.stringify(invoice))
     .set(`payment:${p.id}`, JSON.stringify(p))
     .lPush(`${uid}:payments`, p.id)
     .incrBy(`${balance}:${uid}`, amount)
diff --git a/lib/upload.js b/lib/upload.js
index fbf9ce20..5f5aebed 100644
--- a/lib/upload.js
+++ b/lib/upload.js
@@ -5,12 +5,16 @@ import fs from "fs";
 import path from "path";
 import sharp from "sharp";
 import { pipeline } from "stream";
-import { g, s } from "$lib/db";
+import { g, s, db } from "$lib/db";
 
-export default async ({ params: { type }, file, user }, res) => {
+export default async (req, res) => {
+  let {
+    params: { type },
+    user
+  } = req;
   if (!["banner", "profile"].includes(type)) throw new Error("invalid upload");
 
-  let data = await file();
+  let data = await req.file();
   let s1 = new Clone(data.file);
   let s2 = new Clone(data.file);
 
@@ -30,14 +34,8 @@ export default async ({ params: { type }, file, user }, res) => {
 
   await new Promise(r => pipeline(s2, t, fs.createWriteStream(path), r));
 
-  let r = async () => {
-    await db.watch(`user:${user.id}`);
-    user = await g(`user:${user.id}`);
-    user[type] = true;
-    let m = await db.multi();
-    await s(`user:${user.id}`, user);
-  };
-  await r();
+  user[type] = true;
+  await s(`user:${user.id}`, user);
 
   res.send(name);
 };
diff --git a/lib/whitelist.js b/lib/whitelist.js
index 77243855..850dffc0 100644
--- a/lib/whitelist.js
+++ b/lib/whitelist.js
@@ -14,6 +14,7 @@ export default [
   "haspin",
   "id",
   "index",
+  "linked",
   "keys",
   "locktime",
   "payments",