Fix build warnings

Logging/MemoryLogger.cs

@@ -62,7 +62,7 @@ public class MemoryLogger : LoggerBase
                     ret.Add(_logMessages.GetValueAtIndex(_lastLogMessageIndex + retIndex).ToString());
                 }
             }
-            catch (NullReferenceException e)//Called when LogMessage has not finished writing
+            catch (NullReferenceException)//Called when LogMessage has not finished writing
             {
                 break;
             }

Tranga/MangaConnectors/MangaConnector.cs

@@ -225,7 +225,7 @@ public abstract class MangaConnector : GlobalBase
             }
             if (progressToken?.cancellationRequested ?? false)
             {
-                progressToken?.Complete();
+                progressToken.Complete();
                 return HttpStatusCode.RequestTimeout;
             }
             progressToken?.Increment();

Tranga/MangaConnectors/MangaDex.cs

@@ -51,16 +51,23 @@ public class MangaDex : MangaConnector
             if (result is null)
                 break;
             
+            if(result.ContainsKey("total"))
                 total = result["total"]!.GetValue<int>(); //Update the total number of Publications
+            else continue;
 
+            if (result.ContainsKey("data"))
+            {
                 JsonArray mangaInResult = result["data"]!.AsArray(); //Manga-data-Array
                 //Loop each Manga and extract information from JSON
                 foreach (JsonNode? mangaNode in mangaInResult)
                 {
+                    if(mangaNode is null)
+                        continue;
                     Log($"Getting publication data. {++loadedPublicationData}/{total}");
-                Manga manga = MangaFromJsonObject((JsonObject)mangaNode);
+                    if(MangaFromJsonObject((JsonObject) mangaNode) is { } manga)
                         retManga.Add(manga); //Add Publication (Manga) to result
                 }
+            }else continue;
         }
         Log($"Retrieved {retManga.Count} publications. Term=\"{publicationTitle}\"");
         return retManga.ToArray();
@@ -81,20 +88,30 @@ public class MangaDex : MangaConnector
         return null;
     }
 
-    private Manga MangaFromJsonObject(JsonObject manga)
+    private Manga? MangaFromJsonObject(JsonObject manga)
     {
+        if (!manga.ContainsKey("attributes"))
+            return null;
         JsonObject attributes = manga["attributes"]!.AsObject();
         
+        if(!manga.ContainsKey("id"))
+            return null;
         string publicationId = manga["id"]!.GetValue<string>();
                 
+        if(!attributes.ContainsKey("title"))
+            return null;
         string title = attributes["title"]!.AsObject().ContainsKey("en") && attributes["title"]!["en"] is not null
                     ? attributes["title"]!["en"]!.GetValue<string>()
                     : attributes["title"]![((IDictionary<string, JsonNode?>)attributes["title"]!.AsObject()).Keys.First()]!.GetValue<string>();
 
+        if(!attributes.ContainsKey("description"))
+            return null;
         string? description = attributes["description"]!.AsObject().ContainsKey("en") && attributes["description"]!["en"] is not null
                     ? attributes["description"]!["en"]!.GetValue<string?>()
                     : null;
 
+        if(!attributes.ContainsKey("altTitles"))
+            return null;
         JsonArray altTitlesObject = attributes["altTitles"]!.AsArray();
         Dictionary<string, string> altTitlesDict = new();
         foreach (JsonNode? altTitleNode in altTitlesObject)
@@ -104,6 +121,8 @@ public class MangaDex : MangaConnector
             altTitlesDict.TryAdd(key, altTitleObject[key]!.GetValue<string>());
         }
 
+        if(!attributes.ContainsKey("tags"))
+            return null;
         JsonArray tagsObject = attributes["tags"]!.AsArray();
         HashSet<string> tags = new();
         foreach (JsonNode? tagNode in tagsObject)
@@ -149,6 +168,8 @@ public class MangaDex : MangaConnector
                 ? attributes["originalLanguage"]!.GetValue<string?>()
                 : null;
 
+        if(!attributes.ContainsKey("status"))
+            return null;
         string status = attributes["status"]!.GetValue<string>();
 
         Manga pub = new(

Tranga/Server.cs

@@ -52,7 +52,7 @@ public class Server : GlobalBase
                 });
                 t.Start();
             }
-            catch (HttpListenerException e)
+            catch (HttpListenerException)
             {
                 
             }