Add LibraryBuffer, so Libraries are not spammed with scans on every download.

Tranga/LibraryConnectors/Kavita.cs

@@ -61,7 +61,7 @@ public class Kavita : LibraryConnector
         return "";
     }
 
-    public override void UpdateLibrary()
+    protected override void UpdateLibraryInternal()
     {
         Log("Updating libraries.");
         foreach (KavitaLibrary lib in GetLibraries())

Tranga/LibraryConnectors/Komga.cs

@@ -25,7 +25,7 @@ public class Komga : LibraryConnector
         return $"Komga {baseUrl}";
     }
 
-    public override void UpdateLibrary()
+    protected override void UpdateLibraryInternal()
     {
         Log("Updating libraries.");
         foreach (KomgaLibrary lib in GetLibraries())

Tranga/LibraryConnectors/LibraryConnector.cs

@@ -17,6 +17,9 @@ public abstract class LibraryConnector : GlobalBase
     public string baseUrl { get; }
     // ReSharper disable once MemberCanBeProtected.Global
     public string auth { get; } //Base64 encoded, if you use your password everywhere, you have problems
+    private DateTime? _updateLibraryRequested = null;
+    private readonly Thread? _libraryBufferThread = null;
+    private const int NoChangeTimeout = 2, BiggestInterval = 20;
     
     protected LibraryConnector(GlobalBase clone, string baseUrl, string auth, LibraryType libraryType) : base(clone)
     {
@@ -28,8 +31,47 @@ public abstract class LibraryConnector : GlobalBase
         this.baseUrl = baseUrlRex.Match(baseUrl).Value;
         this.auth = auth;
         this.libraryType = libraryType;
+
+        if (TrangaSettings.bufferLibraryUpdates)
+        {
+            _libraryBufferThread = new(CheckLibraryBuffer);
+            _libraryBufferThread.Start();
+        }
     }
-    public abstract void UpdateLibrary();
+
+    private void CheckLibraryBuffer()
+    {
+        while (true)
+        {
+            if (_updateLibraryRequested is not null && DateTime.Now.Subtract((DateTime)_updateLibraryRequested) > TimeSpan.FromMinutes(NoChangeTimeout)) //If no updates have been requested for NoChangeTimeout minutes, update library
+            {
+                UpdateLibraryInternal();
+                _updateLibraryRequested = null;
+            }
+            Thread.Sleep(100);
+        }
+    }
+
+    public void UpdateLibrary()
+    {
+        _updateLibraryRequested ??= DateTime.Now;
+        if (!TrangaSettings.bufferLibraryUpdates)
+        {
+            UpdateLibraryInternal();
+            return;
+        }else if (_updateLibraryRequested is not null &&
+                  DateTime.Now.Subtract((DateTime)_updateLibraryRequested) > TimeSpan.FromMinutes(BiggestInterval)) //If the last update has been more than BiggestInterval minutes ago, update library
+        {
+            UpdateLibraryInternal();
+            _updateLibraryRequested = null;
+        }
+        else if(_updateLibraryRequested is not null)
+        {
+            Log($"Buffering Library Updates (Updates in latest {((DateTime)_updateLibraryRequested).Add(TimeSpan.FromMinutes(BiggestInterval)).Subtract(DateTime.Now)} or {((DateTime)_updateLibraryRequested).Add(TimeSpan.FromMinutes(NoChangeTimeout)).Subtract(DateTime.Now)})");
+        }
+    }
+    
+    protected abstract void UpdateLibraryInternal();
     internal abstract bool Test();
 
     protected static class NetClient

Tranga/TrangaSettings.cs

@@ -15,6 +15,7 @@ public static class TrangaSettings
     public static string workingDirectory { get; private set; } = Path.Join(RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? "/usr/share" : Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "tranga-api");
     public static int apiPortNumber { get; private set; } = 6531;
     public static string userAgent { get; private set; } = DefaultUserAgent;
+    public static bool bufferLibraryUpdates { get; private set; } = false;
     [JsonIgnore] public static string settingsFilePath => Path.Join(workingDirectory, "settings.json");
     [JsonIgnore] public static string libraryConnectorsFilePath => Path.Join(workingDirectory, "libraryConnectors.json");
     [JsonIgnore] public static string notificationConnectorsFilePath => Path.Join(workingDirectory, "notificationConnectors.json");
@@ -46,15 +47,16 @@ public static class TrangaSettings
         ExportSettings();
     }
 
-    public static void CreateOrUpdate(string? downloadDirectory = null, string? pWorkingDirectory = null, int? pApiPortNumber = null, string? pUserAgent = null, bool? pAprilFoolsMode = null)
+    public static void CreateOrUpdate(string? downloadDirectory = null, string? pWorkingDirectory = null, int? pApiPortNumber = null, string? pUserAgent = null, bool? pAprilFoolsMode = null, bool? pBufferLibraryUpdates = null)
     {
         if(pWorkingDirectory is null && File.Exists(settingsFilePath))
             LoadFromWorkingDirectory(workingDirectory);
-        TrangaSettings.downloadLocation = downloadDirectory ?? TrangaSettings.downloadLocation;
+        downloadLocation = downloadDirectory ?? downloadLocation;
-        TrangaSettings.workingDirectory = pWorkingDirectory ?? TrangaSettings.workingDirectory;
+        workingDirectory = pWorkingDirectory ?? workingDirectory;
-        TrangaSettings.apiPortNumber = pApiPortNumber ?? TrangaSettings.apiPortNumber;
+        apiPortNumber = pApiPortNumber ?? apiPortNumber;
-        TrangaSettings.userAgent = pUserAgent ?? TrangaSettings.userAgent;
+        userAgent = pUserAgent ?? userAgent;
-        TrangaSettings.aprilFoolsMode = pAprilFoolsMode ?? TrangaSettings.aprilFoolsMode;
+        aprilFoolsMode = pAprilFoolsMode ?? aprilFoolsMode;
+        bufferLibraryUpdates = pBufferLibraryUpdates ?? bufferLibraryUpdates;
         Directory.CreateDirectory(downloadLocation);
         Directory.CreateDirectory(workingDirectory);
         ExportSettings();
@@ -90,7 +92,7 @@ public static class TrangaSettings
 
     public static void UpdateAprilFoolsMode(bool enabled)
     {
-        TrangaSettings.aprilFoolsMode = enabled;
+        aprilFoolsMode = enabled;
         ExportSettings();
     }
 
@@ -102,10 +104,10 @@ public static class TrangaSettings
         else
             Directory.CreateDirectory(newPath);
         
-        if (moveFiles && Directory.Exists(TrangaSettings.downloadLocation))
+        if (moveFiles && Directory.Exists(downloadLocation))
-            Directory.Move(TrangaSettings.downloadLocation, newPath);
+            Directory.Move(downloadLocation, newPath);
 
-        TrangaSettings.downloadLocation = newPath;
+        downloadLocation = newPath;
         ExportSettings();
     }
 
@@ -116,26 +118,26 @@ public static class TrangaSettings
                 GroupRead | GroupWrite | None | OtherRead | OtherWrite | UserRead | UserWrite);
         else
             Directory.CreateDirectory(newPath);
-        Directory.Move(TrangaSettings.workingDirectory, newPath);
+        Directory.Move(workingDirectory, newPath);
-        TrangaSettings.workingDirectory = newPath;
+        workingDirectory = newPath;
         ExportSettings();
     }
 
     public static void UpdateUserAgent(string? customUserAgent)
     {
-        TrangaSettings.userAgent = customUserAgent ?? DefaultUserAgent;
+        userAgent = customUserAgent ?? DefaultUserAgent;
         ExportSettings();
     }
 
     public static void UpdateRateLimit(RequestType requestType, int newLimit)
     {
-        TrangaSettings.requestLimits[requestType] = newLimit;
+        requestLimits[requestType] = newLimit;
         ExportSettings();
     }
 
     public static void ResetRateLimits()
     {
-        TrangaSettings.requestLimits = DefaultRequestLimits;
+        requestLimits = DefaultRequestLimits;
         ExportSettings();
     }
 
@@ -154,13 +156,14 @@ public static class TrangaSettings
     public static JObject AsJObject()
     {
         JObject jobj = new JObject();
-        jobj.Add("downloadLocation", JToken.FromObject(TrangaSettings.downloadLocation));
+        jobj.Add("downloadLocation", JToken.FromObject(downloadLocation));
-        jobj.Add("workingDirectory", JToken.FromObject(TrangaSettings.workingDirectory));
+        jobj.Add("workingDirectory", JToken.FromObject(workingDirectory));
-        jobj.Add("apiPortNumber", JToken.FromObject(TrangaSettings.apiPortNumber));
+        jobj.Add("apiPortNumber", JToken.FromObject(apiPortNumber));
-        jobj.Add("userAgent", JToken.FromObject(TrangaSettings.userAgent));
+        jobj.Add("userAgent", JToken.FromObject(userAgent));
-        jobj.Add("aprilFoolsMode", JToken.FromObject(TrangaSettings.aprilFoolsMode));
+        jobj.Add("aprilFoolsMode", JToken.FromObject(aprilFoolsMode));
-        jobj.Add("version", JToken.FromObject(TrangaSettings.version));
+        jobj.Add("version", JToken.FromObject(version));
-        jobj.Add("requestLimits", JToken.FromObject(TrangaSettings.requestLimits));
+        jobj.Add("requestLimits", JToken.FromObject(requestLimits));
+        jobj.Add("bufferLibraryUpdates", JToken.FromObject(bufferLibraryUpdates));
         return jobj;
     }
 
@@ -170,16 +173,18 @@ public static class TrangaSettings
     {
         JObject jobj = JObject.Parse(serialized);
         if (jobj.TryGetValue("downloadLocation", out JToken? dl))
-            TrangaSettings.downloadLocation = dl.Value<string>()!;
+            downloadLocation = dl.Value<string>()!;
         if (jobj.TryGetValue("workingDirectory", out JToken? wd))
-            TrangaSettings.workingDirectory = wd.Value<string>()!;
+            workingDirectory = wd.Value<string>()!;
         if (jobj.TryGetValue("apiPortNumber", out JToken? apn))
-            TrangaSettings.apiPortNumber = apn.Value<int>();
+            apiPortNumber = apn.Value<int>();
         if (jobj.TryGetValue("userAgent", out JToken? ua))
-            TrangaSettings.userAgent = ua.Value<string>()!;
+            userAgent = ua.Value<string>()!;
         if (jobj.TryGetValue("aprilFoolsMode", out JToken? afm))
-            TrangaSettings.aprilFoolsMode = afm.Value<bool>()!;
+            aprilFoolsMode = afm.Value<bool>()!;
         if (jobj.TryGetValue("requestLimits", out JToken? rl))
-            TrangaSettings.requestLimits = rl.ToObject<Dictionary<RequestType, int>>()!;
+            requestLimits = rl.ToObject<Dictionary<RequestType, int>>()!;
+        if (jobj.TryGetValue("bufferLibraryUpdates", out JToken? blu))
+            bufferLibraryUpdates = blu.Value<bool>()!;
     }
 }