From 8077af0f4003fd6bb435754df646063a5d6e755a Mon Sep 17 00:00:00 2001
From: Jacob Karlsson <jacob.karlsson95@gmail.com>
Date: Wed, 12 Oct 2022 15:44:53 +0200
Subject: [PATCH] Make tanglePrune work

---
 lib/add-group-tangle.js   |  4 ++--
 lib/tangle-prune.js       |  5 ++---
 test/tangle-prune.test.js | 13 ++++++-------
 3 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/lib/add-group-tangle.js b/lib/add-group-tangle.js
index b3e50a3..cdb36fb 100644
--- a/lib/add-group-tangle.js
+++ b/lib/add-group-tangle.js
@@ -5,6 +5,7 @@
 const { isCloakedMsg } = require('ssb-ref')
 const set = require('lodash.set')
 const GetGroupTangle = require('./get-group-tangle')
+const tanglePrune = require('./tangle-prune')
 
 module.exports = function AddGroupTangle(server) {
   const getGroupTangle = GetGroupTangle(server)
@@ -26,8 +27,7 @@ module.exports = function AddGroupTangle(server) {
       if (err) return cb(null, content)
 
       set(content, 'tangles.group', tangle)
-      //TODO: uncomment
-      //tanglePrune(content) // prune the group tangle down if needed
+      tanglePrune(content) // prune the group tangle down if needed
 
       cb(null, content)
     })
diff --git a/lib/tangle-prune.js b/lib/tangle-prune.js
index aed2d03..d183c99 100644
--- a/lib/tangle-prune.js
+++ b/lib/tangle-prune.js
@@ -16,7 +16,8 @@ const MAX_SIZE_1_recps = 6041
 
 module.exports = function tanglePrune(content) {
   const tangle = 'group'
-  const maxSize = content.recps > 1 ? MAX_SIZE_16_recps : MAX_SIZE_1_recps
+  const maxSize =
+    content.recps.length > 1 ? MAX_SIZE_16_recps : MAX_SIZE_1_recps
   if (getLength(content) <= maxSize) return content
 
   content.tangles[tangle].previous = content.tangles[tangle].previous.sort(() =>
@@ -36,7 +37,5 @@ module.exports = function tanglePrune(content) {
 }
 
 function getLength(obj) {
-  // stringify if on classic
-  //return JSON.stringify(obj).length
   return bipf.encodingLength(obj)
 }
diff --git a/test/tangle-prune.test.js b/test/tangle-prune.test.js
index 6e0c876..4d51601 100644
--- a/test/tangle-prune.test.js
+++ b/test/tangle-prune.test.js
@@ -3,13 +3,11 @@
 // SPDX-License-Identifier: LGPL-3.0-only
 
 const test = require('tape')
-const { promisify: p } = require('util')
 const bipf = require('bipf')
 const Testbot = require('./helpers/testbot')
 const tanglePrune = require('../lib/tangle-prune')
 
 const chars = 'abcABC123=+? '.split('')
-//const encodedLength = (obj) => JSON.stringify(msgVal.content).length
 const encodedLength = (obj) => bipf.encodingLength(obj)
 const randomChar = () => chars.sort(() => (Math.random() < 0.5 ? -1 : +1))[0]
 const randomText = (length) => {
@@ -18,7 +16,7 @@ const randomText = (length) => {
   return output
 }
 
-test.only('tangle prune', async (t) => {
+test('tangle prune', async (t) => {
   const ssb = Testbot()
   const ssbId = ssb.id
 
@@ -87,6 +85,7 @@ test.only('tangle prune', async (t) => {
 
     const result = results.get(upper) || results.get(mid) || results.get(lower)
     t.pass(`max stringied content size for ${numberRecps} recps:  ${result}`)
+    return result
   }
   const max16recps = await findMaxSize(16).catch(t.error) // 5546
   const max1recp = await findMaxSize(1).catch(t.error) // 6041
@@ -96,7 +95,7 @@ test.only('tangle prune', async (t) => {
   const content = (prevCount, numRecps) => ({
     type: 'post',
     text: 'hello!',
-    recps: [...new Array(numRecps).fill(ssbId)],
+    recps: new Array(numRecps).fill(ssbId),
     tangles: {
       group: {
         root: msgId,
@@ -105,9 +104,9 @@ test.only('tangle prune', async (t) => {
     },
   })
 
-  // console.time('prune')
-  const result16 = tanglePrune(content(4000, 16), 'group')
-  // console.timeEnd('prune')
+  //console.time('prune')
+  const result16 = tanglePrune(content(4000, 16))
+  //console.timeEnd('prune')
   t.true(
     encodedLength(result16) <= max16recps,
     `pruned ${4000 - result16.tangles.group.previous.length}`