From b6b3200ba99daa8a2d37c2a789818f63c61d86a1 Mon Sep 17 00:00:00 2001
From: filip mertens <filip.mertens@ethereum.org>
Date: Wed, 29 Sep 2021 10:56:55 +0200
Subject: [PATCH] migrating

---
 apps/remix-ide/src/assets/js/init.js | 30 +++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/apps/remix-ide/src/assets/js/init.js b/apps/remix-ide/src/assets/js/init.js
index f3b9acb1d7..d39198c31a 100644
--- a/apps/remix-ide/src/assets/js/init.js
+++ b/apps/remix-ide/src/assets/js/init.js
@@ -96,11 +96,35 @@ window.onload = () => {
       }
     }
   }
-  window.remixFileSystemCallback = new RemixFileSystem()
-  window.remixFileSystemCallback.init('RemixFileSystem').then(() => {
-    window.remixFileSystem = window.remixFileSystemCallback.promises
+
+  function loadApp(){
     const app = document.createElement('script')
     app.setAttribute('src', versions[versionToLoad])
     document.body.appendChild(app)
+  }
+
+  function migrateFiles(){
+    BrowserFS.install(window)
+    BrowserFS.configure({
+        fs: "LocalStorage"
+    }, function(e) {
+        if (e) console.log(e)
+        let browserFS = require('fs')
+        console.log(browserFS)
+    })
+  }
+
+  window.remixFileSystemCallback = new RemixFileSystem()
+  window.remixFileSystemCallback.init('RemixFileSystem').then(() => {
+    window.remixFileSystem = window.remixFileSystemCallback.promises
+    // check if .workspaces is present in indexeddb
+    window.remixFileSystem.stat('.workspaces2').then((dir) => {
+      if(dir.isDirectory()) loadApp()
+    }).catch(()=>{
+      // no indexeddb workspaces
+      console.log("loading localstorage FS")
+      migrateFiles();
+    });
+
   })
 }