refactor the whole damn thing

src/MessageHandler/syncStep2.js

@@ -0,0 +1,48 @@
+import integrateRemoteStructs from './integrateRemoteStructs'
+import { stringifyUpdate } from './update.js'
+import ID from '../Util/ID'
+
+export function stringifySyncStep2 (decoder, strBuilder) {
+  strBuilder.push('     - auth: ' + decoder.readVarString() + '\n')
+  strBuilder.push('  == OS: \n')
+  stringifyUpdate(decoder, strBuilder)
+  // write DS to string
+  strBuilder.push('  == DS: \n')
+  let len = decoder.readUint32()
+  for (let i = 0; i < len; i++) {
+    let user = decoder.readVarUint()
+    strBuilder.push(`    User: ${user}: `)
+    let len2 = decoder.readVarUint()
+    for (let j = 0; j < len2; j++) {
+      let from = decoder.readVarUint()
+      let to = decoder.readVarUint()
+      let gc = decoder.readUint8() === 1
+      strBuilder.push(`[${from}, ${to}, ${gc}]`)
+    }
+  }
+}
+
+export function writeSyncStep2 () {
+  // TODO
+}
+
+export default function writeStructs (encoder, decoder, y, ss) {
+  let lenPos = encoder.pos
+  let len = 0
+  encoder.writeUint32(0)
+  for (let [user, clock] of ss) {
+    y.os.iterate(new ID(user, clock), null, function (struct) {
+      struct._toBinary(y, encoder)
+      len++
+    })
+  }
+  encoder.setUint32(lenPos, len)
+}
+
+export function readSyncStep2 (decoder, encoder, y, senderConn, sender) {
+  // apply operations first
+  applyDeleteSet(decoder)
+  integrateRemoteStructs(decoder, encoder, y)
+  // then apply ds
+  y.connector._setSyncedWith(sender)
+}