feat: add packet_id() to Packet enum

domo_proto/src/packet/identifier.rs

@@ -1,10 +1,20 @@
-use std::fmt::{Formatter, LowerHex};
+use std::fmt::{Display, Formatter, LowerHex};
 
-#[derive(Debug, Eq, PartialEq)]
+#[derive(Debug, Eq, PartialEq, Copy, Clone)]
 pub struct Identifier {
     pub bytes: [u8; 4],
 }
 
+impl Display for Identifier {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "0x{:x}{:x}{:x}{:x}",
+            self.bytes[0], self.bytes[1], self.bytes[2], self.bytes[3]
+        )
+    }
+}
+
 impl LowerHex for Identifier {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         write!(

domo_proto/src/packet/mod.rs

@@ -21,6 +21,12 @@ pub enum Packet {
 }
 
 impl Packet {
+    pub fn packet_id(&self) -> Identifier {
+        match self {
+            Packet::V1 { packet_id, ..} => packet_id.clone()
+        }
+    }
+
     /// Build packet **without** CRC32
     pub fn build_base_packet(&self) -> Vec<u8> {
         match self {