feat: show default unfurling for community links

src/app/chat/views/communities.nim

@@ -123,6 +123,20 @@ QtObject:
   QtProperty[QVariant] joinedCommunities:
     read = getJoinedComunities
     notify = joinedCommunitiesChanged
+  
+  proc getCommunityNameById*(self: CommunitiesView, communityId: string): string {.slot.} =
+    let communities = self.getCommunitiesIfNotFetched()
+    for community in communities.communities:
+      if community.id == communityId:
+        return community.name
+    return ""
+  
+  proc isUserMemberOfCommunity*(self: CommunitiesView, communityId: string): bool {.slot.} =
+    let communities = self.getCommunitiesIfNotFetched()
+    for community in communities.communities:
+      if community.id == communityId:
+        return community.joined and community.isMember
+    return false
 
   proc activeCommunityChanged*(self: CommunitiesView) {.signal.}
 

ui/app/AppLayouts/Chat/CommunityComponents/MembershipRequestsButton.qml

@@ -50,7 +50,7 @@ Rectangle {
         anchors.rightMargin: Style.current.padding
         anchors.verticalCenter: parent.verticalCenter
         width: 13
-
+        height: 7
 
         ColorOverlay {
             anchors.fill: parent

ui/imports/Utils.qml

@@ -329,6 +329,32 @@ QtObject {
             return result
         }
 
+        // Community
+        // TODO this will probably change
+        index = link.lastIndexOf("/cc/")
+        if (index > -1) {
+            const communityId = link.substring(index + 4)
+
+            const communityName = chatsModel.communities.getCommunityNameById(communityId)
+
+            if (!communityName) {
+                // Unknown community
+                // TODO use a function to fetch that community?
+                return result
+            }
+
+            result.title = qsTr("Join the %1 community").arg(communityName)
+            result.callback = function () {
+                const isUserMemberOfCommunity = chatsModel.communities.isUserMemberOfCommunity(communityId)
+                if (isUserMemberOfCommunity) {
+                    chatsModel.communities.setActiveCommunity(communityId)
+                    return
+                }
+                chatsModel.communities.joinCommunity(communityId, true)
+            }
+            return result
+        }
+
         // Public chat
         // This needs to be the last check because it is as VERY loose check
         index = link.lastIndexOf("/")