move wallet info stuff to "getwalletinfo" rpc (left original wallet

stuff in getinfo call for backwards compatibility)

add wallet transaction count to getwalletinfo rpc call

src/rpcserver.cpp

@@ -296,6 +296,7 @@ static const CRPCCommand vRPCCommands[] =
     { "lockunspent",            &lockunspent,            false,     false,      true },
     { "listlockunspent",        &listlockunspent,        false,     false,      true },
     { "settxfee",               &settxfee,               false,     false,      true },
+    { "getwalletinfo",          &getwalletinfo,          true,      false,      true },
 
     /* Wallet-enabled mining */
     { "getgenerate",            &getgenerate,            true,      false,      false },

src/rpcserver.h

@@ -163,6 +163,7 @@ extern json_spirit::Value walletlock(const json_spirit::Array& params, bool fHel
 extern json_spirit::Value encryptwallet(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value validateaddress(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getinfo(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value getwalletinfo(const json_spirit::Array& params, bool fHelp);
 
 extern json_spirit::Value getrawtransaction(const json_spirit::Array& params, bool fHelp); // in rcprawtransaction.cpp
 extern json_spirit::Value listunspent(const json_spirit::Array& params, bool fHelp);

src/rpcwallet.cpp

@@ -1893,4 +1893,36 @@ Value settxfee(const Array& params, bool fHelp)
     return true;
 }
 
+Value getwalletinfo(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+        throw runtime_error(
+            "getwalletinfo\n"
+            "Returns an object containing various wallet state info.\n"
+            "\nResult:\n"
+            "{\n"
+            "  \"walletversion\": xxxxx,     (numeric) the wallet version\n"
+            "  \"balance\": xxxxxxx,         (numeric) the total bitcoin balance of the wallet\n"
+            "  \"txcount\": xxxxxxx,         (numeric) the total number of transactions in the wallet\n"
+            "  \"keypoololdest\": xxxxxx,    (numeric) the timestamp (seconds since GMT epoch) of the oldest pre-generated key in the key pool\n"
+            "  \"keypoolsize\": xxxx,        (numeric) how many new keys are pre-generated\n"
+            "  \"unlocked_until\": ttt,      (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
+            "}\n"
+            "\nExamples:\n"
+            + HelpExampleCli("getwalletinfo", "")
+            + HelpExampleRpc("getwalletinfo", "")
+        );
+
+    Object obj;
+    obj.push_back(Pair("walletversion", pwalletMain->GetVersion()));
+    obj.push_back(Pair("balance",       ValueFromAmount(pwalletMain->GetBalance())));
+    obj.push_back(Pair("txcount",       (int)pwalletMain->mapWallet.size()));
+    obj.push_back(Pair("keypoololdest", (boost::int64_t)pwalletMain->GetOldestKeyPoolTime()));
+    obj.push_back(Pair("keypoolsize",   (int)pwalletMain->GetKeyPoolSize()));
+    if (pwalletMain->IsCrypted())
+        obj.push_back(Pair("unlocked_until", (boost::int64_t)nWalletUnlockTime));
+    return obj;
+}
+
+