From 87dde4712e37044aee0ca6c8c04d3411bb66c4ae Mon Sep 17 00:00:00 2001
From: Dominik Werder <dominik.werder@gmail.com>
Date: Sat, 10 Dec 2022 14:32:37 +0100
Subject: [PATCH] WIP

---
 items/src/frame.rs        | 25 ++++++++++------
 items_2/src/eventsdim0.rs | 62 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+), 9 deletions(-)

diff --git a/items/src/frame.rs b/items/src/frame.rs
index c018247..b5b0167 100644
--- a/items/src/frame.rs
+++ b/items/src/frame.rs
@@ -86,30 +86,34 @@ pub fn encode_to_vec<S>(item: S) -> Result<Vec<u8>, Error>
 where
     S: Serialize,
 {
-    serde_json::to_vec(&item).map_err(|e| e.into())
+    if true {
+        serde_json::to_vec(&item).map_err(|e| e.into())
+    } else {
+        bincode_to_vec(&item)
+    }
 }
 
 pub fn decode_from_slice<T>(buf: &[u8]) -> Result<T, Error>
 where
     T: for<'de> serde::Deserialize<'de>,
 {
-    serde_json::from_slice(buf).map_err(|e| e.into())
+    if true {
+        serde_json::from_slice(buf).map_err(|e| e.into())
+    } else {
+        bincode_from_slice(buf)
+    }
 }
 
 pub fn make_frame_2<T>(item: &T, fty: u32) -> Result<BytesMut, Error>
 where
     T: erased_serde::Serialize,
 {
-    trace!("make_frame_2  fty {:x}", fty);
+    info!("make_frame_2  T = {}  fty {:x}", std::any::type_name::<T>(), fty);
     let mut out = Vec::new();
     //let mut ser = rmp_serde::Serializer::new(&mut out).with_struct_map();
     //let writer = ciborium::ser::into_writer(&item, &mut out).unwrap();
-    #[cfg(DIS)]
-    let ser2 = {
-        let mut ser = bincode_ser(&mut out);
-        let mut ser2 = <dyn erased_serde::Serializer>::erase(&mut ser);
-        let _ = ser2;
-    };
+    //let mut ser = bincode_ser(&mut out);
+    //let mut ser2 = <dyn erased_serde::Serializer>::erase(&mut ser);
     let mut ser = serde_json::Serializer::new(&mut out);
     let mut ser2 = <dyn erased_serde::Serializer>::erase(&mut ser);
     match item.erased_serialize(&mut ser2) {
@@ -121,6 +125,7 @@ where
             let mut h = crc32fast::Hasher::new();
             h.update(&enc);
             let payload_crc = h.finalize();
+            // TODO reserve also for footer via constant
             let mut buf = BytesMut::with_capacity(enc.len() + INMEM_FRAME_HEAD);
             buf.put_u32_le(INMEM_FRAME_MAGIC);
             buf.put_u32_le(INMEM_FRAME_ENCID);
@@ -266,6 +271,7 @@ pub fn decode_frame<T>(frame: &InMemoryFrame) -> Result<T, Error>
 where
     T: FrameDecodable,
 {
+    info!("decode_frame  T = {}", std::any::type_name::<T>());
     if frame.encid() != INMEM_FRAME_ENCID {
         return Err(Error::with_msg(format!("unknown encoder id {:?}", frame)));
     }
@@ -329,6 +335,7 @@ where
             match decode_from_slice(frame.buf()) {
                 Ok(item) => Ok(item),
                 Err(e) => {
+                    error!("decode_frame  T = {}", std::any::type_name::<T>());
                     error!("ERROR deserialize  len {}  tyid {:x}", frame.buf().len(), frame.tyid());
                     let n = frame.buf().len().min(64);
                     let s = String::from_utf8_lossy(&frame.buf()[..n]);
diff --git a/items_2/src/eventsdim0.rs b/items_2/src/eventsdim0.rs
index c46eed9..c23abd3 100644
--- a/items_2/src/eventsdim0.rs
+++ b/items_2/src/eventsdim0.rs
@@ -1001,3 +1001,65 @@ impl<NTY: ScalarOps> items_0::collect_c::Collectable for EventsDim0<NTY> {
         Box::new(EventsDim0Collector::<NTY>::new())
     }
 }
+
+#[cfg(test)]
+mod test_frame {
+    use crate::channelevents::ChannelEvents;
+    use crate::eventsdim0::EventsDim0;
+    use err::Error;
+    use items::Framable;
+    use items::RangeCompletableItem;
+    use items::Sitemty;
+    use items::StreamItem;
+    use items_0::AsAnyMut;
+    use items_0::Empty;
+
+    #[test]
+    fn events_bincode() {
+        // core::result::Result<items::StreamItem<items::RangeCompletableItem<items_2::channelevents::ChannelEvents>>, err::Error>
+        let mut events = EventsDim0::empty();
+        events.push(123, 234, 55f32);
+        let events = events;
+        let events: Box<dyn items_0::Events> = Box::new(events);
+        let item = ChannelEvents::Events(events);
+        let item = Ok::<_, Error>(StreamItem::DataItem(RangeCompletableItem::Data(item)));
+        let mut buf = item.make_frame().unwrap();
+        let s = String::from_utf8_lossy(&buf[20..buf.len() - 4]);
+        eprintln!("[[{s}]]");
+        let buflen = buf.len();
+        let frame = items::inmem::InMemoryFrame {
+            encid: items::INMEM_FRAME_ENCID,
+            tyid: 0x2500,
+            len: (buflen - 24) as _,
+            buf: buf.split_off(20).split_to(buflen - 20 - 4).freeze(),
+        };
+        let item: Sitemty<ChannelEvents> = items::frame::decode_frame(&frame).unwrap();
+        let item = if let Ok(x) = item { x } else { panic!() };
+        let item = if let StreamItem::DataItem(x) = item {
+            x
+        } else {
+            panic!()
+        };
+        let item = if let RangeCompletableItem::Data(x) = item {
+            x
+        } else {
+            panic!()
+        };
+        let mut item = if let ChannelEvents::Events(x) = item {
+            x
+        } else {
+            panic!()
+        };
+        let item = if let Some(item) = item.as_any_mut().downcast_mut::<Box<dyn items_0::Events>>() {
+            item
+        } else {
+            panic!()
+        };
+        eprintln!("NOW WE SEE: {:?}", item);
+        let item = if let Some(item) = item.as_any_mut().downcast_ref::<Box<EventsDim0<f32>>>() {
+            item
+        } else {
+            panic!()
+        };
+    }
+}