From d34599dae1cd389797dabbb39c0f30304a63915a Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Thu, 21 Mar 2019 23:20:46 +0000
Subject: wallet: add number of blocks required for the balance to fully unlock

---
 src/wallet/wallet2.cpp | 55 +++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 43 insertions(+), 12 deletions(-)

(limited to 'src/wallet/wallet2.cpp')

diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 54fbd9ca8..63151b462 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -5445,13 +5445,19 @@ uint64_t wallet2::balance(uint32_t index_major) const
   return amount;
 }
 //----------------------------------------------------------------------------------------------------
-uint64_t wallet2::unlocked_balance(uint32_t index_major) const
+uint64_t wallet2::unlocked_balance(uint32_t index_major, uint64_t *blocks_to_unlock) const
 {
   uint64_t amount = 0;
+  if (blocks_to_unlock)
+    *blocks_to_unlock = 0;
   if(m_light_wallet)
     return m_light_wallet_balance;
   for (const auto& i : unlocked_balance_per_subaddress(index_major))
-    amount += i.second;
+  {
+    amount += i.second.first;
+    if (blocks_to_unlock && i.second.second > *blocks_to_unlock)
+      *blocks_to_unlock = i.second.second;
+  }
   return amount;
 }
 //----------------------------------------------------------------------------------------------------
@@ -5484,18 +5490,36 @@ std::map<uint32_t, uint64_t> wallet2::balance_per_subaddress(uint32_t index_majo
   return amount_per_subaddr;
 }
 //----------------------------------------------------------------------------------------------------
-std::map<uint32_t, uint64_t> wallet2::unlocked_balance_per_subaddress(uint32_t index_major) const
+std::map<uint32_t, std::pair<uint64_t, uint64_t>> wallet2::unlocked_balance_per_subaddress(uint32_t index_major) const
 {
-  std::map<uint32_t, uint64_t> amount_per_subaddr;
+  std::map<uint32_t, std::pair<uint64_t, uint64_t>> amount_per_subaddr;
+  const uint64_t blockchain_height = get_blockchain_current_height();
   for(const transfer_details& td: m_transfers)
   {
-    if(td.m_subaddr_index.major == index_major && !td.m_spent && !td.m_frozen && is_transfer_unlocked(td))
+    if(td.m_subaddr_index.major == index_major && !td.m_spent && !td.m_frozen)
     {
+      uint64_t amount = 0, blocks_to_unlock = 0;
+      if (is_transfer_unlocked(td))
+      {
+        amount = td.amount();
+        blocks_to_unlock = 0;
+      }
+      else
+      {
+        uint64_t unlock_height = td.m_block_height + std::max<uint64_t>(CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE, CRYPTONOTE_LOCKED_TX_ALLOWED_DELTA_BLOCKS);
+        if (td.m_tx.unlock_time < CRYPTONOTE_MAX_BLOCK_NUMBER && td.m_tx.unlock_time > unlock_height)
+          unlock_height = td.m_tx.unlock_time;
+        blocks_to_unlock = unlock_height > blockchain_height ? unlock_height - blockchain_height : 0;
+        amount = 0;
+      }
       auto found = amount_per_subaddr.find(td.m_subaddr_index.minor);
       if (found == amount_per_subaddr.end())
-        amount_per_subaddr[td.m_subaddr_index.minor] = td.amount();
+        amount_per_subaddr[td.m_subaddr_index.minor] = std::make_pair(amount, blocks_to_unlock);
       else
-        found->second += td.amount();
+      {
+        found->second.first += amount;
+        found->second.second = std::max(found->second.second, blocks_to_unlock);
+      }
     }
   }
   return amount_per_subaddr;
@@ -5509,11 +5533,18 @@ uint64_t wallet2::balance_all() const
   return r;
 }
 //----------------------------------------------------------------------------------------------------
-uint64_t wallet2::unlocked_balance_all() const
+uint64_t wallet2::unlocked_balance_all(uint64_t *blocks_to_unlock) const
 {
   uint64_t r = 0;
+  if (blocks_to_unlock)
+    *blocks_to_unlock = 0;
   for (uint32_t index_major = 0; index_major < get_num_subaddress_accounts(); ++index_major)
-    r += unlocked_balance(index_major);
+  {
+    uint64_t local_blocks_to_unlock;
+    r += unlocked_balance(index_major, blocks_to_unlock ? &local_blocks_to_unlock : NULL);
+    if (blocks_to_unlock)
+      *blocks_to_unlock = std::max(*blocks_to_unlock, local_blocks_to_unlock);
+  }
   return r;
 }
 //----------------------------------------------------------------------------------------------------
@@ -9059,7 +9090,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
   // throw if attempting a transaction with no money
   THROW_WALLET_EXCEPTION_IF(needed_money == 0, error::zero_destination);
 
-  std::map<uint32_t, uint64_t> unlocked_balance_per_subaddr = unlocked_balance_per_subaddress(subaddr_account);
+  std::map<uint32_t, std::pair<uint64_t, uint64_t>> unlocked_balance_per_subaddr = unlocked_balance_per_subaddress(subaddr_account);
   std::map<uint32_t, uint64_t> balance_per_subaddr = balance_per_subaddress(subaddr_account);
 
   if (subaddr_indices.empty()) // "index=<N1>[,<N2>,...]" wasn't specified -> use all the indices with non-zero unlocked balance
@@ -9077,7 +9108,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
   for (uint32_t index_minor : subaddr_indices)
   {
     balance_subtotal += balance_per_subaddr[index_minor];
-    unlocked_balance_subtotal += unlocked_balance_per_subaddr[index_minor];
+    unlocked_balance_subtotal += unlocked_balance_per_subaddr[index_minor].first;
   }
   THROW_WALLET_EXCEPTION_IF(needed_money + min_fee > balance_subtotal, error::not_enough_money,
     balance_subtotal, needed_money, 0);
@@ -9143,7 +9174,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
   {
     auto sort_predicate = [&unlocked_balance_per_subaddr] (const std::pair<uint32_t, std::vector<size_t>>& x, const std::pair<uint32_t, std::vector<size_t>>& y)
     {
-      return unlocked_balance_per_subaddr[x.first] > unlocked_balance_per_subaddr[y.first];
+      return unlocked_balance_per_subaddr[x.first].first > unlocked_balance_per_subaddr[y.first].first;
     };
     std::sort(unused_transfers_indices_per_subaddr.begin(), unused_transfers_indices_per_subaddr.end(), sort_predicate);
     std::sort(unused_dust_indices_per_subaddr.begin(), unused_dust_indices_per_subaddr.end(), sort_predicate);
-- 
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