refactor: use IntEnum instead of a custom implementation for ConfigKey in config.rs

Cargo.lock

@@ -210,6 +210,7 @@ dependencies = [
  "esp-radio",
  "esp-rtos",
  "esp-storage",
+ "int-enum",
  "picoserve",
  "portable-atomic",
  "postcard",
@@ -1431,6 +1432,18 @@ dependencies = [
  "syn 2.0.117",
 ]
 
+[[package]]
+name = "int-enum"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e366a1634cccc76b4cfd3e7580de9b605e4d93f1edac48d786c1f867c0def495"
+dependencies = [
+ "proc-macro2",
+ "proc-macro2-diagnostics",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.18"
@@ -1720,6 +1733,18 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "proc-macro2-diagnostics"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af066a9c399a26e020ada66a034357a868728e72cd426f3adcd35f80d88d88c8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+ "version_check",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.45"

Cargo.toml

@@ -66,6 +66,7 @@ sequential-storage = "8.0"
 esp-storage = { version = "0.9", features = ["defmt", "esp32c6"] }
 postcard = { version = "1.1", default-features = false }
 serde = { version = "1.0", default-features = false, features = ["derive"] }
+int-enum = "1.2.0"
 
 
 # For fine tuning these settings, please refer to https://doc.rust-lang.org/cargo/reference/profiles.html

src/config.rs

@@ -4,6 +4,7 @@ use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embedded_rpc::RpcService;
 use esp_hal::peripherals::FLASH;
 use esp_storage::FlashStorage;
+use int_enum::IntEnum;
 use sequential_storage::{
     cache::Cache,
     map::{Key, MapConfig, MapStorage, SerializationError},
@@ -52,30 +53,12 @@ async fn config_handler(flash: FLASH<'static>) {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, IntEnum)]
 #[repr(u8)]
 enum ConfigKey {
     Wifi,
 }
 
-impl TryFrom<u8> for ConfigKey {
-    type Error = ();
-
-    fn try_from(value: u8) -> Result<Self, Self::Error> {
-        const WIFI: u8 = ConfigKey::Wifi as u8;
-        match value {
-            WIFI => Ok(ConfigKey::Wifi),
-            _ => Err(()),
-        }
-    }
-}
-
-impl From<ConfigKey> for u8 {
-    fn from(c: ConfigKey) -> u8 {
-        c as u8
-    }
-}
-
 impl Key for ConfigKey {
     fn get_len(_: &[u8]) -> Result<usize, SerializationError> {
         Ok(1)