From cf68bad47ac3de03d520220ebd3d9a89909db1af Mon Sep 17 00:00:00 2001
From: pbywater <philippabywater@gmail.com>
Date: Thu, 20 Jul 2017 15:41:37 +0100
Subject: [PATCH] adding logic for deleting memories in database when user
 comes back online

relates to #138
---
 src/client/d3/d3.js           | 13 +++---------
 src/client/helpers/helpers.js | 38 +++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 10 deletions(-)

diff --git a/src/client/d3/d3.js b/src/client/d3/d3.js
index ecaf652..efe3bb1 100644
--- a/src/client/d3/d3.js
+++ b/src/client/d3/d3.js
@@ -1,4 +1,4 @@
-const { initTagMenu, showDeleteButton, hoveringOnDelete, hideDeleteButton, initSubmitMemory, tagSorting, constructTagList, showHeading } = require('../helpers/helpers.js');
+const { initTagMenu, showDeleteButton, hoveringOnDelete, hideDeleteButton, initSubmitMemory, tagSorting, constructTagList, showHeading, saveMemoryIdToStorage, removeMemoryFromStoredData } = require('../helpers/helpers.js');
 const { width, height, jsonUrl, svg, fdGrp, nodeGrp, linkGrp } = require('./setup.js');
 const { sortWithMax, binByTag, centralMaxNodesByTag, memoryNodesAndLinks } = require('../node_transformations');
 const { appendPopUp, randomPopUp } = require('./modals.js');
@@ -221,15 +221,8 @@ function render(updatedData) {
         render(formatData(data));
         sim.restart();
       } else {
-        const saveDeletedMemory = JSON.stringify({ toDelete: id });
-        localStorage.toDelete = saveDeletedMemory;
-        const offlineData = JSON.parse(localStorage.getItem('data'));
-        offlineData.forEach((memory, index) => {
-          if (memory.id == id) {
-            offlineData.splice(index, 1);
-          }
-          return offlineData;
-        });
+        saveMemoryIdToStorage(id);
+        const offlineData = removeMemoryFromStoredData(id);
         render(formatData(offlineData));
         sim.restart();
       }
diff --git a/src/client/helpers/helpers.js b/src/client/helpers/helpers.js
index 9b3347e..0302155 100644
--- a/src/client/helpers/helpers.js
+++ b/src/client/helpers/helpers.js
@@ -219,6 +219,42 @@ function constructTagList(data) {
   </li>`);
 }
 
+function saveMemoryIdToStorage(id) {
+  if (localStorage.toDelete) {
+    const memoriesWaitingToBeRemoved = JSON.parse(localStorage.getItem("toDelete"));
+    memoriesWaitingToBeRemoved.toDelete.push(id);
+    const saveMemoriesToDelete = JSON.stringify(memoriesWaitingToBeRemoved);
+    localStorage.toDelete = saveMemoriesToDelete;
+  }
+  else {
+    const saveDeletedMemory = JSON.stringify({toDelete: [id]});
+    localStorage.toDelete = saveDeletedMemory;
+  }
+}
+
+function removeMemoryFromStoredData(id) {
+  const offlineData = JSON.parse(localStorage.getItem('data'));
+  offlineData.forEach((memory, index) => {
+    if (memory.id == id) {
+      offlineData.splice(index, 1);
+    }
+  });
+return offlineData;
+}
+
+function removeMemoriesDeletedOffline() {
+  const deletedMemories = JSON.parse(localStorage.getItem('toDelete'));
+  deletedMemories.toDelete.forEach((memory) => {
+    console.log('memory id is ', memory.id);
+    $.ajax({
+      method: 'DELETE',
+      url: 'memories',
+      data: { memory.id },
+      success: () => update(url),
+    });
+  })
+}
+
 module.exports = {
     getRandomInt,
     initTagMenu,
@@ -228,4 +264,6 @@ module.exports = {
     hideDeleteButton,
     showHeading,
     constructTagList,
+    saveMemoryIdToStorage,
+    removeMemoryFromStoredData,
 };