Store in permanent location storage

Added a workaround (see comments) to ensure that we can always store even files
under the same filename and renamed them to the destination place.
See comments bugs for more info.

splitthebill/pages/BillEditPage.qml

@@ -18,16 +18,27 @@ Page {
     Connections {
         target: activeTransfer
         onStateChanged: {
+            /*
+             * We move manually every item of the temp import filename in the permanent content app store to the
+             * destination name. We can't save it directly to it aborts the transfer if we already have a file with the
+             * same file name (even with different content), and thus, doesn't give a chance for us to even rename it.
+             * https://bugs.launchpad.net/ubuntu/+source/content-hub/+bug/1483589
+             * TODO: how to clean old files?????
+             */
             if (activeTransfer.state === ContentTransfer.Charged) {
+                var uri = "%1/attachments/%2".arg(appStore.uri.toString().substring(0, appStore.uri.toString().lastIndexOf("/")))
+                                             .arg(billsHandler.current.billId);
                 var importItems = activeTransfer.items;
                 for (var i = 0; i < importItems.length; i++) {
-                    console.log("Original URL: " + importItems[i].url);
-                    importItems[i].move("/home/didrocks/.cache/com.ubuntu.developer.didrocks.hub-importer/blah");
-                    console.log ("Final URL: " + importItems[i].url);
-                    // this forces to do a copy of the string (otherwise, the object isn't referenced anymore
-                    // move to destination (in a well known path), only reference by keyname
-
-                    // TODO: file manipulation?
+                    /* Have to save the full absolute path for rerence (see last line of description in
+                      https://bugs.launchpad.net/ubuntu/+source/content-hub/+bug/1483589 */
+                    var ext = importItems[i].url.toString().substr(importItems[i].url.toString().lastIndexOf('.') + 1);
+                    var j = 1;
+                    var filename = "attach%1.%2".arg(j).arg(ext);
+                    while (!importItems[i].move(uri, filename)) {
+                        j++;
+                        filename = "attach%1.%2".arg(j).arg(ext);
+                    }
                     billsHandler.current.attachments.append({"url": importItems[i].url.toString()});
                 }
             }
@@ -39,6 +50,11 @@ Page {
         activeTransfer: page.activeTransfer
     }
 
+    /* we don't direct request to the permanent app local store directly (see above) */
+    ContentStore {
+        id: appStore
+        scope: ContentScope.App
+    }
 
     Page {
         id: picker
@@ -50,7 +66,7 @@ Page {
             contentType: ContentType.Pictures
             onPeerSelected: {
                 peer.selectionType = ContentTransfer.Multiple;
-                activeTransfer = peer.request();
+                activeTransfer = peer.request(appStore);
                 pageStack.pop();
             }
         }