1 files changed, 65 insertions, 0 deletions
diff --git a/Exception.cs b/Exception.cs
new file mode 100644
index 0000000..1e070eb
--- /dev/null
+++ b/Exception.cs
@@ -0,0 +1,65 @@
+namespace HyperBooru;
+
+public class HBException : Exception {
+    public HBException()
+        : base() {}
+    public HBException(string message)
+        : base(message) {}
+    public HBException(string message, Exception inner)
+        : base(message, inner) {}
+}
+
+public class ObjectNotFoundException : HBException {
+    public Guid Guid { get; private init; }
+
+    public ObjectNotFoundException(Guid guid)
+        : base($"Object not found: {guid}") {}
+}
+
+public class TagException : HBException {
+    public TagDefinition? TagDefinition { get; private init; }
+
+    public TagException(string message) : base(message) {}
+    public TagException(string message, TagDefinition tagDefinition)
+        : base(message) =>
+            TagDefinition = tagDefinition;
+}
+
+public class TagDuplicateException : TagException {
+    public bool NameExists { get; private init; }
+    public bool AliasExists { get; private init; }
+
+    public TagDuplicateException(bool nameExists, bool aliasExists)
+        : base(GenerateMessage(nameExists, aliasExists)) {
+
+        NameExists  = nameExists;
+        AliasExists = aliasExists;
+    }
+
+    private static string GenerateMessage(bool nameExists, bool aliasExists) {
+        if(nameExists && aliasExists)
+            return $"Both tag name and alias already exist!";
+        else if(nameExists)
+            return $"Tag name already exists!";
+        else
+            return $"Tag alias already exists";
+    }
+}
+
+public class MediaException : HBException {
+    public Media? Media { get; private init; }
+
+    public MediaException(string message) : base(message) {}
+    public MediaException(string message, Media media) : base(message) =>
+        Media = media;
+}
+
+public class MediaCreateException : MediaException {
+    public MediaCreateException(string message)
+        : base(message) {}
+}
+
+public class ThumbnailException : MediaException {
+    public ThumbnailException(string message, Media media)
+        :base(message, media) {}
+}