feat: add is operator set quorum function (#513)

Co-authored-by: Tomás Grüner <[email protected]>

chainio/clients/avsregistry/reader.go

@@ -397,6 +397,24 @@ func (r *ChainReader) IsOperatorRegistered(
 	return registeredWithAvs, nil
 }
 
+// Receives a quorum number and returns if that quorum is an operator set quorum based
+// on its stake type, that means true if the quorum is an M2 quorum and the avs is an
+// operator set avs (new workflow)
+func (r *ChainReader) IsOperatorSetQuorum(
+	opts *bind.CallOpts,
+	quorumNumber uint8,
+) (bool, error) {
+	if r.stakeRegistry == nil {
+		return false, errors.New("StakeRegistry contract not provided")
+	}
+	isOperatorSet, err := r.stakeRegistry.IsOperatorSetQuorum(opts, quorumNumber)
+	if err != nil {
+		return false, err
+	}
+
+	return isOperatorSet, nil
+}
+
 // Queries existing operators for a particular block range.
 // Returns two arrays. The first one contains the addresses
 // of the operators, and the second contains their corresponding public keys.

chainio/clients/avsregistry/reader_test.go

@@ -135,4 +135,16 @@ func TestReaderMethods(t *testing.T) {
 			require.NoError(t, err)
 			require.Equal(t, 0, len(address_to_sockets))
 		})
+
+	t.Run("Is operator set quorum", func(t *testing.T) {
+		// A quorum registered in the old workflow should return false
+		isOperatorSet, err := chainReader.IsOperatorSetQuorum(
+			&bind.CallOpts{},
+			0,
+		)
+		require.NoError(t, err)
+		require.False(t, isOperatorSet)
+
+		// TODO: Make a test with the new workflow testing a case returning true
+	})
 }