From 4c854dbccb1e96a78cf198a0ab165649d82563d7 Mon Sep 17 00:00:00 2001
From: Andreas Neuhaus <git@zargony.com>
Date: Sat, 21 Dec 2024 11:14:19 +0100
Subject: [PATCH] Support to write error messages directly to JSON

---
 firmware/src/error.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/firmware/src/error.rs b/firmware/src/error.rs
index bbda73a..3fbbb88 100644
--- a/firmware/src/error.rs
+++ b/firmware/src/error.rs
@@ -1,7 +1,10 @@
+use crate::json::{self, ToJson};
 use crate::user::UserId;
 use crate::{display, nfc, vereinsflieger};
+use alloc::string::ToString;
 use core::fmt;
 use core::future::Future;
+use embedded_io_async::Write;
 
 /// Main error type
 #[derive(Debug)]
@@ -126,3 +129,12 @@ impl fmt::Display for ErrorKind {
         }
     }
 }
+
+impl ToJson for ErrorKind {
+    async fn to_json<W: Write>(
+        &self,
+        json: &mut json::Writer<W>,
+    ) -> Result<(), json::Error<W::Error>> {
+        json.write(self.to_string()).await
+    }
+}