Send optional document metadata with KOSync progress uploads

src/activities/reader/KOReaderSyncActivity.cpp

@@ -405,6 +405,7 @@ void KOReaderSyncActivity::performUpload() {
   progress.document = documentHash;
   progress.progress = localProgress.xpath;
   progress.percentage = localProgress.percentage;
+  progress.metadata = localDocumentMetadata;
 
   const auto result = KOReaderSyncClient::updateProgress(progress);
   KOReaderSyncClient::endPersistentSession();
@@ -717,6 +718,18 @@ bool KOReaderSyncActivity::computeLocalProgressAndChapter() {
   localChapterLabel = (localTocIndex >= 0)
                           ? epub->getTocItem(localTocIndex).title
                           : (std::string(tr(STR_SECTION_PREFIX)) + std::to_string(currentSpineIndex + 1));
+
+  if (KOREADER_STORE.getSendMetadata()) {
+    const size_t slash = epubPath.rfind('/');
+    KOReaderMetadata meta;
+    meta.filename = (slash != std::string::npos) ? epubPath.substr(slash + 1) : epubPath;
+    meta.title = epub->getTitle();
+    meta.authors = epub->getAuthor();
+    localDocumentMetadata = std::move(meta);
+  } else {
+    localDocumentMetadata.reset();
+  }
+
   return true;
 }
 

src/activities/reader/KOReaderSyncActivity.h

@@ -93,6 +93,7 @@ class KOReaderSyncActivity final : public Activity {
   KOReaderPosition localProgress;
   std::string remoteChapterLabel;
   std::string localChapterLabel;
+  std::optional<KOReaderMetadata> localDocumentMetadata;
 
   // Selection in result screen (0=Apply, 1=Upload)
   int selectedOption = 0;

src/activities/settings/KOReaderSettingsActivity.cpp

@@ -17,7 +17,7 @@ KOReaderSettingsActivity::KOReaderSettingsActivity(GfxRenderer& renderer, Mapped
 }
 
 void KOReaderSettingsActivity::buildMenuItems() {
-  menuItems.reserve(7);
+  menuItems.reserve(8);
   // Username, Password, Server URL: ACTION items with custom value display
   menuItems.push_back(SettingInfo::Action(StrId::STR_SYNC_SERVER_URL, SettingAction::None)
                           .withSubcategory(StrId::STR_MENU_KOSYNC_SERVER));
@@ -35,6 +35,17 @@ void KOReaderSettingsActivity::buildMenuItems() {
                           .withSubcategory(StrId::STR_MENU_KOSYNC_BEHAVIOR));
   menuItems.push_back(SettingInfo::Toggle(StrId::STR_KO_SYNC_ON_BOOK_CLOSE, &CrossPointSettings::koSyncOnBookClose,
                                           "koSyncOnBookClose"));
+  {
+    SettingInfo s;
+    s.nameId = StrId::STR_SEND_METADATA;
+    s.type = SettingType::TOGGLE;
+    s.valueGetter = [](const void*) -> uint8_t { return KOREADER_STORE.getSendMetadata() ? 1u : 0u; };
+    s.valueSetter = [](void*, uint8_t v) {
+      KOREADER_STORE.setSendMetadata(v != 0);
+      KOREADER_STORE.saveToFile();
+    };
+    menuItems.push_back(std::move(s));
+  }
 
   // Authenticate and Register: ACTION items
   menuItems.push_back(