notifications: store unread messages count to file

- stores and loads unread message notification count to and from
  the contact data file

Change-Id: Idc00f1d964c273f51cec943b0521da2faa1c9666
Tuleap: #983

Contact.cpp

@@ -32,7 +32,8 @@ using namespace ViewModel;
 
 Contact::Contact(String^ name,
                  String^ ringID,
-                 String^ GUID)
+                 String^ GUID,
+                 unsigned int unreadmessages)
 {
     name_   = name;
     ringID_ = ringID;
@@ -68,10 +69,14 @@ Contact::Contact(String^ name,
             }
         }
     });
-    //conversation_ = ref new Conversation();
 
     notificationNewMessage_ = Windows::UI::Xaml::Visibility::Collapsed;
-    unreadMessages_ = 0; // not saved on disk yet (TO DO)
+    unreadMessages_ = unreadmessages; // not saved on disk yet (TO DO)
+
+    if(unreadMessages_) {
+        notificationNewMessage = Windows::UI::Xaml::Visibility::Visible;
+        PropertyChanged(this, ref new PropertyChangedEventArgs("unreadMessages"));
+    }
 
     /* connect to delegate */
     ContactsViewModel::instance->notifyNewConversationMessage += ref new NotifyNewConversationMessage([&] () {
@@ -82,6 +87,7 @@ Contact::Contact(String^ name,
             PropertyChanged(this, ref new PropertyChangedEventArgs("unreadMessages"));
             notificationNewMessage = Windows::UI::Xaml::Visibility::Collapsed;
             unreadMessages_ = 0;
+            ContactsViewModel::instance->saveContactsToFile();
         }
     });
 }
@@ -91,7 +97,6 @@ Contact::addNotifyNewConversationMessage()
 {
     notificationNewMessage = Windows::UI::Xaml::Visibility::Visible;
     unreadMessages_++;
-    RingDebug::instance->print(Utils::toString(unreadMessages_.ToString()));
 }
 
 void
@@ -113,6 +118,7 @@ Contact::ToJsonObject()
     contactObject->SetNamedValue(nameKey, JsonValue::CreateStringValue(name_));
     contactObject->SetNamedValue(ringIDKey, JsonValue::CreateStringValue(ringID_));
     contactObject->SetNamedValue(GUIDKey, JsonValue::CreateStringValue(GUID_));
+    contactObject->SetNamedValue(unreadMessagesKey, JsonValue::CreateNumberValue(unreadMessages_));
 
     JsonObject^ jsonObject = ref new JsonObject();
     jsonObject->SetNamedValue(contactKey, contactObject);

Contact.h

@@ -26,6 +26,7 @@ using namespace Windows::UI::Xaml::Data;
 String^ nameKey = "name";
 String^ ringIDKey = "ringid";
 String^ GUIDKey = "guid";
+String^ unreadMessagesKey = "unreadmessages";
 String^ contactKey = "contact";
 String^ contactListKey = "contactlist";
 
@@ -35,7 +36,7 @@ ref class Conversation;
 public ref class Contact sealed : public INotifyPropertyChanged
 {
 public:
-    Contact(String^ name, String^ ringID, String^ GUID);
+    Contact(String^ name, String^ ringID, String^ GUID, unsigned int unreadmessages);
     JsonObject^ ToJsonObject();
 
     virtual event PropertyChangedEventHandler^ PropertyChanged;

ContactsViewModel.cpp

@@ -58,8 +58,10 @@ ContactsViewModel::ContactsViewModel()
         if (contact->ringID_ == from && isNotSelected) {
             // increment contact's unread message count
             contact->addNotifyNewConversationMessage();
-            // update the xaml for all
+            // update the xaml for all contacts
             notifyNewConversationMessage();
+            // save to disk
+            saveContactsToFile();
         }
     });
 
@@ -80,7 +82,7 @@ ContactsViewModel::addNewContact(String^ name, String^ ringId)
 {
     auto trimedName = Utils::Trim(name);
     if (contactsList_ && !findContactByName(trimedName)) {
-        Contact^ contact = ref new Contact(trimedName, trimedName, nullptr);
+        Contact^ contact = ref new Contact(trimedName, trimedName, nullptr, 0);
         contactsList_->Append(contact);
         saveContactsToFile();
         return contact;
@@ -162,6 +164,7 @@ ContactsViewModel::Destringify(String^ data)
     String^         name;
     String^         ringid;
     String^         guid;
+    unsigned int    unreadmessages;
 
     JsonArray^ contactlist = jsonObject->GetNamedArray(contactListKey, ref new JsonArray());
     for (unsigned int i = 0; i < contactlist->Size; i++) {
@@ -170,11 +173,12 @@ ContactsViewModel::Destringify(String^ data)
             JsonObject^ jsonContactObject = contact->GetObject();
             JsonObject^ contactObject = jsonContactObject->GetNamedObject(contactKey, nullptr);
             if (contactObject != nullptr) {
-                name = contactObject->GetNamedString(nameKey, "");
-                ringid = contactObject->GetNamedString(ringIDKey, "");
-                guid = contactObject->GetNamedString(GUIDKey, "");
+                name = contactObject->GetNamedString(nameKey);
+                ringid = contactObject->GetNamedString(ringIDKey);
+                guid = contactObject->GetNamedString(GUIDKey);
+                unreadmessages = static_cast<uint16_t>(contactObject->GetNamedNumber(unreadMessagesKey));
             }
-            contactsList_->Append(ref new Contact(name, ringid, guid));
+            contactsList_->Append(ref new Contact(name, ringid, guid, unreadmessages));
         }
     }
 }