v0.1.0-pre.012

kb-lib/src/decoder/router/dflow_aggregator_v4.rs

@@ -1,12 +1,39 @@
 // file: kb-lib/src/decoder/router/dflow_aggregator_v4.rs
-// version: 2
+// version: 3
 
-//! Migration boundary for legacy crate `kb_decoder_router_dflow_aggregator_v4`.
+//! Reserved protocol decoder for `router_dflow_aggregator_v4`.
 
-/// Legacy crate name retained for migration and compatibility tracking.
-pub(crate) const DC_ROUTER_DFLOW_AGGREGATOR_V4_LEGACY_CRATE: &str =
-    "kb_decoder_router_dflow_aggregator_v4";
+/// Reserved decoder for the `router_dflow_aggregator_v4` program surface.
+#[derive(Clone, Debug, Default)]
+pub struct DcRouterDflowAggregatorV4Decoder;
 
-/// Current porting status.
-pub(crate) const DC_ROUTER_DFLOW_AGGREGATOR_V4_MIGRATION_STATUS: &str =
-    "source-preserved-pending-port";
+impl crate::DcApiProtocolDecoder for crate::DcRouterDflowAggregatorV4Decoder {
+    fn decoder_name(&self) -> &'static str {
+        return "kb_decoder_router_dflow_aggregator_v4";
+    }
+
+    fn decoder_version(&self) -> &'static str {
+        return env!("CARGO_PKG_VERSION");
+    }
+
+    fn program_ids(&self) -> &'static [&'static str] {
+        return &[kb_program_ids::ROUTER_DFLOW_AGGREGATOR_V4_PROGRAM_ID];
+    }
+
+    fn supports_observation(
+        &self,
+        observation: &crate::MdProgramObservation,
+    ) -> crate::DcApiDecoderSupport {
+        if crate::DcApiProtocolDecoder::handles_program_id(self, &observation.program_id) {
+            return crate::DcApiDecoderSupport::Maybe;
+        }
+        return crate::DcApiDecoderSupport::No;
+    }
+
+    fn decode_observation(
+        &self,
+        _observation: &crate::MdProgramObservation,
+    ) -> kb_core::Result<std::vec::Vec<crate::MdDecodedProtocolEvent>> {
+        return std::result::Result::Ok(std::vec::Vec::new());
+    }
+}