From 3972f939f7440350019e97a0ee749910376758d3 Mon Sep 17 00:00:00 2001
From: John Maguire <john.maguire@gmail.com>
Date: Fri, 30 Nov 2012 15:40:09 +0100
Subject: [PATCH] Support deletion and reset from Dropbox's delta API.

---
 src/internet/dropboxservice.cpp | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/internet/dropboxservice.cpp b/src/internet/dropboxservice.cpp
index 784b78ee5..ac29715d1 100644
--- a/src/internet/dropboxservice.cpp
+++ b/src/internet/dropboxservice.cpp
@@ -112,7 +112,8 @@ void DropboxService::RequestFileListFinished(QNetworkReply* reply) {
   QVariantMap response = parser.parse(reply).toMap();
   if (response.contains("reset") &&
       response["reset"].toBool()) {
-    // TODO: Clear dropbox DB.
+    qLog(Debug) << "Resetting Dropbox DB";
+    library_backend_->DeleteAll();
   }
 
   QSettings settings;
@@ -124,13 +125,25 @@ void DropboxService::RequestFileListFinished(QNetworkReply* reply) {
   foreach (const QVariant& c, contents) {
     QVariantList item = c.toList();
     QString path = item[0].toString();
+
+    QUrl url;
+    url.setScheme("dropbox");
+    url.setPath(path);
+
+    if (item[1].isNull()) {
+      // Null metadata indicates path deleted.
+      qLog(Debug) << "Deleting:" << url;
+      Song song = library_backend_->GetSongByUrl(url);
+      if (song.is_valid()) {
+        library_backend_->DeleteSongs(SongList() << song);
+      }
+      continue;
+    }
+
     QVariantMap metadata = item[1].toMap();
     if (metadata["is_dir"].toBool()) {
       continue;
     }
-    QUrl url;
-    url.setScheme("dropbox");
-    url.setPath(path);
     MaybeAddFileToDatabase(url, metadata);
   }