feat: add method for fetching both clockhain and target height

src/wallet/api/wallet2_api.h

@@ -32,6 +32,7 @@
 
 
 #include <string>
+#include <utility>
 #include <vector>
 #include <list>
 #include <set>
@@ -1424,6 +1425,9 @@ struct WalletManager
     //! returns current blockchain target height
     virtual uint64_t blockchainTargetHeight() = 0;
 
+    //! returns current blockchain and target height
+    virtual std::pair<uint64_t, uint64_t> blockchainAndTargetHeight() = 0;
+
     //! returns current network difficulty
     virtual uint64_t networkDifficulty() = 0;
 

src/wallet/api/wallet_manager.cpp

@@ -280,6 +280,18 @@ uint64_t WalletManagerImpl::blockchainTargetHeight()
     return ires.target_height >= ires.height ? ires.target_height : ires.height;
 }
 
+std::pair<uint64_t, uint64_t> WalletManagerImpl::blockchainAndTargetHeight()
+{
+    cryptonote::COMMAND_RPC_GET_INFO::request ireq;
+    cryptonote::COMMAND_RPC_GET_INFO::response ires;
+
+    if (!epee::net_utils::invoke_http_json("/getinfo", ireq, ires, m_http_client))
+      return std::make_pair(0, 0);
+    uint64_t height = ires.height;
+    uint64_t target_height = ires.target_height >= ires.height ? ires.target_height : ires.height;
+    return std::make_pair(height, target_height);
+}
+
 uint64_t WalletManagerImpl::networkDifficulty()
 {
     cryptonote::COMMAND_RPC_GET_INFO::request ireq;

src/wallet/api/wallet_manager.h

@@ -95,6 +95,7 @@ public:
     bool connected(uint32_t *version = NULL) override;
     uint64_t blockchainHeight() override;
     uint64_t blockchainTargetHeight() override;
+    std::pair<uint64_t, uint64_t> blockchainAndTargetHeight() override;
     uint64_t networkDifficulty() override;
     double miningHashRate() override;
     uint64_t blockTarget() override;