1 files changed, 57 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..02080c7
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,57 @@
+use crate::{CtlType, InPkt, PktType};
+use num_enum::TryFromPrimitiveError;
+use std::{fmt, io, sync::mpsc};
+
+#[derive(Debug)]
+pub enum Error {
+    IoError(io::Error),
+    InvalidProtoId(u32),
+    InvalidPeerID,
+    InvalidChannel(u8),
+    InvalidType(u8),
+    InvalidCtlType(u8),
+    RemoteDisco,
+    LocalDisco,
+}
+
+impl From<io::Error> for Error {
+    fn from(err: io::Error) -> Self {
+        Self::IoError(err)
+    }
+}
+
+impl From<TryFromPrimitiveError<PktType>> for Error {
+    fn from(err: TryFromPrimitiveError<PktType>) -> Self {
+        Self::InvalidType(err.number)
+    }
+}
+
+impl From<TryFromPrimitiveError<CtlType>> for Error {
+    fn from(err: TryFromPrimitiveError<CtlType>) -> Self {
+        Self::InvalidType(err.number)
+    }
+}
+
+impl From<mpsc::SendError<InPkt>> for Error {
+    fn from(_err: mpsc::SendError<InPkt>) -> Self {
+        Self::LocalDisco // technically not a disconnect but a local drop
+    }
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        use Error::*;
+        write!(f, "RUDP Error: ")?;
+
+        match self {
+            IoError(err) => write!(f, "IO Error: {}", err),
+            InvalidProtoId(id) => write!(f, "Invalid Protocol ID: {id}"),
+            InvalidPeerID => write!(f, "Invalid Peer ID"),
+            InvalidChannel(ch) => write!(f, "Invalid Channel: {ch}"),
+            InvalidType(tp) => write!(f, "Invalid Type: {tp}"),
+            InvalidCtlType(tp) => write!(f, "Invalid Control Type: {tp}"),
+            RemoteDisco => write!(f, "Remote Disconnected"),
+            LocalDisco => write!(f, "Local Disconnected"),
+        }
+    }
+}