From d1d134df6d97d13a63c27c8c0aeb994be2c96822 Mon Sep 17 00:00:00 2001
From: Dr Maxim Orlovsky <orlovsky@lnp-bp.org>
Date: Wed, 11 Sep 2024 12:41:38 +0200
Subject: [PATCH] iface: add contract state accessing methods to IfaceWrapper

---
 src/interface/iface.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/interface/iface.rs b/src/interface/iface.rs
index c6cbfaaf..26fa99f9 100644
--- a/src/interface/iface.rs
+++ b/src/interface/iface.rs
@@ -30,7 +30,8 @@ use amplify::{ByteArray, Bytes32};
 use baid64::{Baid64ParseError, DisplayBaid64, FromBaid64Str};
 use chrono::{DateTime, TimeZone, Utc};
 use commit_verify::{CommitId, CommitmentId, DigestExt, Sha256};
-use rgb::{Identity, Occurrences};
+use rgb::vm::WitnessOrd;
+use rgb::{ContractId, Identity, Occurrences, SchemaId, XWitnessId};
 use strict_encoding::{
     FieldName, StrictDecode, StrictDeserialize, StrictDumb, StrictEncode, StrictSerialize,
     StrictType, TypeName, VariantName,
@@ -355,6 +356,15 @@ pub trait IfaceWrapper<S: ContractStateRead> {
     /// Constructs information object describing a specific class in terms of
     /// the interface class.
     fn info(&self) -> Self::Info;
+
+    /// Returns contract id.
+    fn contract_id(&self) -> ContractId;
+
+    /// Returns schema id of the contract.
+    fn schema_id(&self) -> SchemaId;
+
+    /// Returns information about a witness, if it is known to the contract state.
+    fn witness_info(&self, witness_id: XWitnessId) -> Option<WitnessOrd>;
 }
 
 /// Interface definition.