fix: add hex parsing

src/utils/hifitime_serde.rs

@@ -1,7 +1,7 @@
-use std::fmt;
-use std::fmt::{Formatter, Write};
 use hifitime::Epoch;
 use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
+use std::fmt;
+use std::fmt::{Formatter, Write};
 
 #[derive(PartialOrd, PartialEq, Ord, Eq, Clone, Copy, Debug, Default)]
 #[repr(transparent)]
@@ -16,8 +16,8 @@ impl From<Epoch> for EpochUTC {
 
 impl Serialize for EpochUTC {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-        where
-            S: Serializer,
+    where
+        S: Serializer,
     {
         serializer.serialize_f64(self.0.to_unix_seconds())
     }
@@ -25,8 +25,8 @@ impl Serialize for EpochUTC {
 
 impl<'de> Deserialize<'de> for EpochUTC {
     fn deserialize<D>(deserializer: D) -> Result<EpochUTC, D::Error>
-        where
-            D: Deserializer<'de>,
+    where
+        D: Deserializer<'de>,
     {
         struct EpochVisitor;
 
@@ -34,31 +34,43 @@ impl<'de> Deserialize<'de> for EpochUTC {
             type Value = EpochUTC;
 
             fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
-                formatter.write_str("a string or a float")
+                formatter.write_str(
+                    "a (string, representing a timestamp in decimal or hexadecimal form) or a decimal",
+                )
             }
 
-            fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E> where E: de::Error {
-                return Ok(Epoch::from_unix_seconds(v as f64).into())
-            }
-
-            fn visit_f32<E>(self, v: f32) -> Result<Self::Value, E> where E: de::Error {
-                return Ok(Epoch::from_unix_seconds(v as f64).into())
-            }
-
-            fn visit_f64<E>(self, v: f64) -> Result<Self::Value, E> where E: de::Error {
-                return Ok(Epoch::from_unix_seconds(v).into())
-            }
-
-            fn visit_str<E>(self, value: &str) -> Result<EpochUTC, E>
-                where
-                    E: de::Error,
+            fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
+            where
+                E: de::Error,
             {
-                return Ok(Epoch::from_unix_seconds(
-                    value.parse().map_err(de::Error::custom)?
-                ).into())
+                return Ok(Epoch::from_unix_seconds(v as f64).into());
+            }
+
+            fn visit_f64<E>(self, v: f64) -> Result<Self::Value, E>
+            where
+                E: de::Error,
+            {
+                return Ok(Epoch::from_unix_seconds(v).into());
+            }
+
+            fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
+            where
+                E: de::Error,
+            {
+                if value.len() == 8 {
+                    let bytes = hex::decode(value).map_err(de::Error::custom)?;
+
+                    return Ok(Epoch::from_unix_seconds(u32::from_be_bytes(
+                        bytes.as_slice().try_into().unwrap(),
+                    ) as f64)
+                    .into());
+                }
+                return Ok(
+                    Epoch::from_unix_seconds(value.parse().map_err(de::Error::custom)?).into(),
+                );
             }
         }
 
         deserializer.deserialize_any(EpochVisitor)
     }
-}
+}