From 18839fde817bec8674cfe3b838a3b34615c22a8e Mon Sep 17 00:00:00 2001
From: catarak <ctarakajian@gmail.com>
Date: Fri, 2 Sep 2016 12:01:23 -0400
Subject: [PATCH] start to add methods for deleting file recursively

---
 client/modules/IDE/reducers/files.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/client/modules/IDE/reducers/files.js b/client/modules/IDE/reducers/files.js
index 1ae9713a..8ada98c8 100644
--- a/client/modules/IDE/reducers/files.js
+++ b/client/modules/IDE/reducers/files.js
@@ -69,6 +69,28 @@ function initialState() {
     }];
 }
 
+function getAllDescendantIds(state, nodeId) {
+  return state.find(file => file.id === nodeId).children
+  .reduce((acc, childId) => (
+    [...acc, childId, ...getAllDescendantIds(state, childId)]
+  ), []);
+}
+
+function deleteMany(state, ids) {
+  const newState = [...state];
+  ids.forEach(id => {
+    let fileIndex;
+    newState.find((file, index) => {
+      if (file.id === id) {
+        fileIndex = index;
+      }
+      return file.id === id;
+    });
+    newState.splice(fileIndex, 1);
+  });
+  return newState;
+}
+
 const files = (state, action) => {
   if (state === undefined) {
     state = initialState(); // eslint-disable-line