From 9541b208a1e5723583af8a26e650a5cbb397dfec Mon Sep 17 00:00:00 2001
From: Ulisse Bordignon <ulisse.bordignon@protonmail.com>
Date: Mon, 19 Feb 2024 16:54:27 +0100
Subject: [PATCH] feat(ethereum): <- add EthReceipt parser to
 PTokensRouterMetadataEvent

---
 .../src/eth_contracts/ptokens_router.rs       | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/common/ethereum/src/eth_contracts/ptokens_router.rs b/common/ethereum/src/eth_contracts/ptokens_router.rs
index 46ac50a9..eef0f16a 100644
--- a/common/ethereum/src/eth_contracts/ptokens_router.rs
+++ b/common/ethereum/src/eth_contracts/ptokens_router.rs
@@ -5,7 +5,11 @@ use common_metadata::{MetadataChainId, METADATA_CHAIN_ID_NUMBER_OF_BYTES};
 use derive_more::Constructor;
 use ethabi::{decode as eth_abi_decode, ParamType as EthAbiParamType, Token as EthAbiToken};
 
-use crate::{EthLog, EthLogExt};
+use crate::{EthLog, EthLogExt, EthReceipt};
+
+crate::make_topics!(
+    PTOKENS_ROUTER_METADATA_EVENT_TOPIC => "41954c3bf6e497b17fc12f429900878df830619bbcccb5f61aedc91e6ccc9e64",
+);
 
 #[derive(Debug, Clone, Constructor, Eq, PartialEq, Default)]
 pub struct PTokensRouterMetadataEvent {
@@ -61,3 +65,20 @@ impl TryFrom<&EthLog> for PTokensRouterMetadataEvent {
         })
     }
 }
+
+impl TryFrom<&EthReceipt> for PTokensRouterMetadataEvent {
+    type Error = AppError;
+
+    fn try_from(receipt: &EthReceipt) -> std::result::Result<Self, Self::Error> {
+        info!("decoding `PTokensRouterMetadataEvent` from receipt...");
+
+        match receipt
+            .logs
+            .iter()
+            .find(|log| log.contains_topic(&PTOKENS_ROUTER_METADATA_EVENT_TOPIC))
+        {
+            Some(log) => Self::try_from(log),
+            None => Err("no matching log found".to_string())?,
+        }
+    }
+}