From 7689151fc0944c6d6041dbc4cc34d8b0320b18d9 Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Mon, 22 Feb 2016 17:54:59 +0100
Subject: [PATCH] pull json validation for OT into its own module for reuse

---
 www/common/json-ot.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 www/common/json-ot.js

diff --git a/www/common/json-ot.js b/www/common/json-ot.js
new file mode 100644
index 000000000..167e3d11a
--- /dev/null
+++ b/www/common/json-ot.js
@@ -0,0 +1,25 @@
+define([
+    '/common/realtime-input.js'
+], function () {
+    var ChainPad = window.ChainPad;
+    var JsonOT = {};
+
+    var validate = JsonOT.validate = function (text, toTransform, transformBy) {
+        var resultOp = ChainPad.Operation.transform0(text, toTransform, transformBy);
+        var text2 = ChainPad.Operation.apply(transformBy, text);
+        var text3 = ChainPad.Operation.apply(resultOp, text2);
+        try {
+            JSON.parse(text3);
+            return resultOp;
+        } catch (e) {
+            console.log(e);
+        }
+
+        // returning **null** breaks out of the loop
+        // which transforms conflicting operations
+        // in theory this should prevent us from producing bad JSON
+        return null;
+    };
+
+    return JsonOT;
+});