add diagnostic string to DecodeFailed

crates/enostr/src/error.rs

@@ -7,8 +7,8 @@ pub enum Error {
     #[error("message is empty")]
     Empty,
 
-    #[error("decoding failed")]
-    DecodeFailed,
+    #[error("decoding failed: {0}")]
+    DecodeFailed(String),
 
     #[error("hex decoding failed")]
     HexDecodeFailed,

crates/enostr/src/relay/message.rs

@@ -130,13 +130,13 @@ impl<'a> RelayMessage<'a> {
             } else if booly == "false" {
                 false
             } else {
-                return Err(Error::DecodeFailed);
+                return Err(Error::DecodeFailed("bad boolean value".into()));
             };
 
             return Ok(Self::ok(event_id, status, "fixme"));
         }
 
-        Err(Error::DecodeFailed)
+        Err(Error::DecodeFailed("unrecognized message type".into()))
     }
 }
 

crates/enostr/src/relay/subs_debug.rs

@@ -225,7 +225,6 @@ fn calculate_ws_message_size(message: &WsMessage) -> usize {
 fn calculate_error_size(error: &Error) -> usize {
     match error {
         Error::Empty
-        | Error::DecodeFailed
         | Error::HexDecodeFailed
         | Error::InvalidBech32
         | Error::InvalidByteSize
@@ -233,6 +232,8 @@ fn calculate_error_size(error: &Error) -> usize {
         | Error::Io(_)
         | Error::InvalidPublicKey => mem::size_of_val(error), // No heap usage
 
+        Error::DecodeFailed(string) => mem::size_of_val(error) + string.len(),
+
         Error::Json(json_err) => mem::size_of_val(error) + json_err.to_string().len(),
 
         Error::Nostrdb(nostrdb_err) => mem::size_of_val(error) + nostrdb_err.to_string().len(),