From d7bc9f9d9d979c1128124c946926cf01867a9d2b Mon Sep 17 00:00:00 2001
From: SergiySW <sergiysw@gmail.com>
Date: Sun, 23 Jul 2017 21:44:08 +0300
Subject: [PATCH] RPC delegators & delegators_count

---
 rai/node/rpc.cpp | 66 ++++++++++++++++++++++++++++++++++++++++++++++++
 rai/node/rpc.hpp |  2 ++
 2 files changed, 68 insertions(+)

diff --git a/rai/node/rpc.cpp b/rai/node/rpc.cpp
index 7764a4b9..945c94c9 100755
--- a/rai/node/rpc.cpp
+++ b/rai/node/rpc.cpp
@@ -852,6 +852,64 @@ void rai::rpc_handler::chain ()
 	}
 }
 
+void rai::rpc_handler::delegators ()
+{
+	std::string account_text (request.get <std::string> ("account"));
+	rai::account account;
+	auto error (account.decode_account (account_text));
+	if (!error)
+	{
+		boost::property_tree::ptree response_l;
+		boost::property_tree::ptree delegators;
+		rai::transaction transaction (node.store.environment, nullptr, false);
+		for (auto i (node.store.latest_begin (transaction)), n (node.store.latest_end ()); i != n; ++i)
+		{
+			rai::account_info info (i->second);
+			auto block (node.store.block_get (transaction, info.rep_block));
+			assert (block != nullptr);
+			if (block->representative() == account) {
+				rai::account account_l (i->first);
+				auto balance (node.ledger.account_balance (transaction, account_l));
+				delegators.put (account_l.to_account (), balance.convert_to <std::string> ());
+			}
+		}
+		response_l.add_child ("delegators", delegators);
+		response (response_l);
+	}
+	else
+	{
+		error_response (response, "Bad account number");
+	}
+}
+
+void rai::rpc_handler::delegators_count ()
+{
+	std::string account_text (request.get <std::string> ("account"));
+	rai::account account;
+	auto error (account.decode_account (account_text));
+	if (!error)
+	{
+		uint64_t count (0);
+		rai::transaction transaction (node.store.environment, nullptr, false);
+		for (auto i (node.store.latest_begin (transaction)), n (node.store.latest_end ()); i != n; ++i)
+		{
+			rai::account_info info (i->second);
+			auto block (node.store.block_get (transaction, info.rep_block));
+			assert (block != nullptr);
+			if (block->representative() == account) {
+				++count;
+			}
+		}
+		boost::property_tree::ptree response_l;
+		response_l.put ("count", std::to_string (count));
+		response (response_l);
+	}
+	else
+	{
+		error_response (response, "Bad account number");
+	}
+}
+
 void rai::rpc_handler::deterministic_key ()
 {
 	std::string seed_text (request.get <std::string> ("seed"));
@@ -2558,6 +2616,14 @@ void rai::rpc_handler::process_request ()
 		{
 			chain ();
 		}
+		else if (action == "delegators")
+		{
+			delegators ();
+		}
+		else if (action == "delegators_count")
+		{
+			delegators_count ();
+		}
 		else if (action == "deterministic_key")
 		{
 			deterministic_key ();
diff --git a/rai/node/rpc.hpp b/rai/node/rpc.hpp
index 7cc8d98d..a39557af 100644
--- a/rai/node/rpc.hpp
+++ b/rai/node/rpc.hpp
@@ -112,6 +112,8 @@ public:
 	void bootstrap ();
 	void bootstrap_any ();
 	void chain ();
+	void delegators ();
+	void delegators_count ();
 	void deterministic_key ();
 	void frontiers ();
 	void frontier_count ();